Uploaded byrjain51
PDF, PPTX6,040 views

Carrier Ethernet

The document provides an overview of carrier Ethernet technologies and their applications for data center interconnection, including various options like PDH, SDH, MPLS, and Metro Ethernet services. It discusses improvements to Ethernet for carrier use, features of MPLS such as virtual circuits, and essential management practices for Ethernet services. Additionally, it covers operational concepts including user-to-network interfaces and metro Ethernet service attributes.

Embed presentation

Download as PDF, PPTX
Carrier Ethernet . Raj Jain Washington University in Saint Louis Saint Louis, MO 63130 Jain@cse.wustl.edu These slides and audio/video recordings of this class lecture are at: http://www.cse.wustl.edu/~jain/cse570-13/ Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-1 ©2013 Raj Jain
Overview Technologies for Data Center Interconnection: PDH, SDH, MPLS, PWE3 2. Metro Ethernet Services: E-Line, E-LAN, E-Tree, E-Access 3. Administration and Management Ethernet Services 4. Extensions to Ethernet for carriers: PB (Q-in-Q), PBB (MAC-in-MAC), PBB-TE Note: Although these technologies were originally developed for carriers, they are now used inside multi-tenant data centers (clouds) 1. Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-2 ©2013 Raj Jain
Options to Connect Two Data Centers? Danforth Campus 1. 2. 3. 4. 5. 6. 7. 8. 9. Medical Campus Dedicated Optical fiber (leased from the phone company) Ethernet over Optical Transport Network (all-Optical Switches) Ethernet over Wavelength Division Multiplexing (DWDM) Ethernet over Synchronous Digital Hierarchy (SDH) Ethernet over Plesiochronous Hierarchy (PDH) Ethernet over Pseudo-wire over MPLS Ethernet over Micro-wave Single Pair High-Speed Digital Subscriber Line (SHDSL) Ethernet with enhancements Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-3 ©2013 Raj Jain
Plesiochronous Digital Hierarchy (PDH)     Plesios + Synchronous = Near synchronous Phone Line = 64 kbps = 1 User channel North America  T1 = 1.544 Mbps = 24 User channels  T2 = 6.312 Mbps = 96 Channels  T3 = 44.736 Mbps = 480 Channels Europe:  E1 = 2.048 Mbps = 32 Channels  E2 = 8.448 Mbps = 128 Channels  E3 = 139.264 Mbps = 2048 Channels Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-4 T1 ©2013 Raj Jain
SONET/SDH E Ethernet           E S S S S SDH SONET=Synchronous optical network Standard for digital optical transmission Standardized by ANSI and then by ITU  Synchronous Digital Hierarchy (SDH) Protection: Allows redundant Line or paths Fast Restoration: 50ms using rings Sophisticated management Ideal for Voice: No queues. Guaranteed delay Fixed Payload Rates: OC1=51.84 Mbps, OC3=155M, OC12=622M, OC48=2.4G, OC192=9.5G Rates do not match data rates of 10M, 100M, 1G, 10G Static rates not suitable for bursty traffic One Payload per Stream http://www.cse.wustl.edu/~jain/cse570-13/  High Cost Washington University in St. Louis 7-5 ©2013 Raj Jain
Multiprotocol Label Switching (MPLS) PBX 1       PBX 3 5 2 3 Allows virtual circuits in IP Networks (May 1996) Each packet has a virtual circuit number called ‘label’ Label determines the packet’s queuing and forwarding Circuits are called Label Switched Paths (LSPs) LSP’s have to be set up before use Allows traffic engineering Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-6 ©2013 Raj Jain
Label Switching Example Ethernet Header IP Header Payload Ethernet Header 64 IP Header Payload 3 <64> A Label R1 5 <3> <5> R3 B <5> 5 Washington University in St. Louis R2 <2> <3> C 2 3 http://www.cse.wustl.edu/~jain/cse570-13/ 7-7 ©2013 Raj Jain
IP over MPLS over Ethernet CE PE Carrier Network PE CE PE= Provider Edge CE = Customer Edge Dest. Adr Src. Type MPLS Customer Customer L3 CRC Next Hop Adr /Len Tag Dest. MAC Adr Src. MAC Adr PDU 48b 48b 16b 32b 48b 48b 32b Label Experimental Stack Position Time CoS/Drop-Preced. 1  Bottom to Live 20b 3b 1b 8b   Allows 220 Label switched paths (LSP) Each path can have reserved capacity  MPLS became a very popular Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-8 ©2013 Raj Jain
Martini Draft  1995-1999: IP over ATM, IP over Ethernet L3 L2  L2 L3  Ethernet IP ATM PPP 2000+: ATM over IP, Ethernet over IP SONET over IP Ethernet ATM IP PPP Idea proposed by Luca Martini of Level 3 Communications and then Cisco Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-9 ©2013 Raj Jain
Pseudo Wire: L2 Circuits over IP CE1 ATM Network PE1 PE2 Pseudo Wire Emulated Service A Frame Relay Network Ethernet CE2 ATM Network B IP Network Frame Relay Network Ethernet Tunnel Hdr Demux Field [Control] ATM ATM ATM ATM Payload Type How to de-assemble payload MPLS/GRE/L2TP - How to get to egress http://www.cse.wustl.edu/~jain/cse570-13/ Washington University in St. Louis ©2013 Raj Jain 7-10
Ethernet over PWE3 over MPLS MPLS Label PW Label [Control] Ethernet Frame w/o FCS PID Flags FRG Length Sequence # 4b 4b 2b 6b 16b        PW1 MPLS LSP PW2 Pseudo-Wire Emulation Edge-to-Edge (PWE3) Multiple pseudo-wires per MPLS LSP PW3 Payload ID (PID): 5=Untagged Ethernet, 4=VLAN tagged, … 4VLAN tag put by carrier and customers may or may not be relevent for forwarding. Determined administratively by PE. Flags: Payload specific. FRG: Used for fragmentation Pause frames are obeyed locally. Not transported. May put 802.1p priority in exp field of MPLS label Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-11 ©2013 Raj Jain
Virtual Private LAN Service (VPLS)    Allows multi-point Ethernet services over MPLS networks using pseudo-wires Non-Hierarchical VPLS: Edge routers do complete routing table, label distribution, multicast/broadcast replication  Suitable for small deployments Hierarchical VPLS (H-VPLS): Edge routers communicate with only other edge devices and do not have large routing tables  Suitable for large deployments A CE PE B CE PE A CE PE PE CE B PE Service Provider CE A PE CE CE: Customer Edge PE: Provider Edge B Ref: H. Saboowala, M. Abid, S. Modali, "Designing Networks and Services for the Cloud: Delivering business-grade cloud applications and services," Cisco Press 2013, ISBN:1587142945 http://www.cse.wustl.edu/~jain/cse570-13/ Washington University in St. Louis ©2013 Raj Jain 7-12
Differentiated Services      A way for IP routers to provide QoS Expedited Forwarding (EF): Also known as Premium Service  Virtual leased line  Guaranteed minimum service rate  Policed: Arrival rate < Minimum Service Rate  Not affected by other forwarding classes Assured Forwarding (AF):  Four Classes: No particular ordering  Three drop preference per class: Low, Medium, High Best Effort Service Differentiated Service Code Point (6 bits) encode the service, E.g., 101110 = EF Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-13 ©2013 Raj Jain
Carriers vs. Enterprise We need to exchange topology for optimal routing. Washington University in St. Louis Sorry, We can’t tell you anything about our internal network. http://www.cse.wustl.edu/~jain/cse570-13/ 7-14 ©2013 Raj Jain
Issue: UNI vs Peer-to-Peer Signaling  Two Business Models:  Carrier: Overlay or cloud  Network is a black-box  User-to-network interface (UNI) to create/destroy light paths (in OIF)  Enterprise: Peer-to-Peer  Complete exchange of information UNI Washington University in St. Louis UNI http://www.cse.wustl.edu/~jain/cse570-13/ 7-15 ©2013 Raj Jain
UNI vs. ENNI   User to Network Interface (UNI):  Separates responsibilities between the user and the provider. (Troubleshooting, failures etc).  Like the wired phone box outside your home.  Only one customer’s traffic. External Network to Network Interface (ENNI):  Separates responsibilities between two providers.  Many customer’s traffic passes through an ENNI  Tier 2 operators sell services to Tier 3 service providers. Customer UNI Provider 1 Tier 3 ENNI Provider 2 Tier 2 Ref: Fujitsu, “Carrier Ethernet Essentials,” http://www.fujitsu.com/downloads/TEL/fnc/whitepapers/CarrierEthernetEssentials.pdf http://www.cse.wustl.edu/~jain/cse570-13/ Washington University in St. Louis ©2013 Raj Jain 7-16
Operator Virtual Connection (OVC)      Between UNI and ENNI or between two ENNIs. For wholesale service providers Two types: Point-to-Point and Multipoint-to-Multipoint Untagged or single tagged frames at NNI. Q-in-Q at ENNI UNIs may be 10 to 100 Mbps. ENNIs at 1 to 10 Gbps. UNI UNI ENNI UNI ENNI Washington University in St. Louis ENNI ENNI UNI http://www.cse.wustl.edu/~jain/cse570-13/ 7-17 ©2013 Raj Jain
Metro Access Ethernet Private Line  Access Ethernet Private Line (Access-EPL):  Port-based service for Internet access Like the service at your home.  Ends at your access provider, where many other AccessEPLs may end  Access provider has only one interface Shared by many Access-EPLs Different from p2p EPL. Customer 1 ENNI Customer n E-Access Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-18 ©2013 Raj Jain
End-to-End Metro Ethernet Connection  An EC may go through multiple service providers  Multiple OVCs can be concatenated to create an EC ENNI Wholesale Access Provider OVC1 UNI Subscriber Washington University in St. Louis ENNI Wholesale Transport Provider OVC2 Retail Service Provider OVC3 EC http://www.cse.wustl.edu/~jain/cse570-13/ 7-19 UNI Subscriber ©2013 Raj Jain
Ethernet Virtual Connections (EVCs)     Port-based ECs: Forwarding not based on VLANs. Frames delivered to remote UNI/ENNI for P2P or Based on destination address for P2MP VLAN-based ECs: Forwarding based on VLAN tag.  Multiple Virtual UNIs  Ethernet Virtual Connection (EVC) More cost-effective for Enterprise customers EVC Types of EVCs: UNI EVC 1. Ethernet Virtual Private Line (EVPL) EVC 2. Ethernet Virtual Private Tree (EVP-Tree) 3. Ethernet Virtual Private LAN (EVPLAN) 4. Access Ethernet Virtual Private Line (Access EVPL) Note: Service providers always share an ENNI for multiple connections  OVCs are always virtual  No OCs Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-20 ©2013 Raj Jain
Metro Ethernet Service Attributes     Bandwidth Profiles: Limits on data dates  Ingress Profile: Incoming data rate  Egress Profile: Outgoing data rate Per UNI, Per EVC or OVC, or Data Per EVC/OVC per Class of Service (CoS) CoS is indicated by the 3-bits in the priority field or CBS 4-bit Differentiated Services Code Point (DSCP) Rate specified by 5 parameters 1. Committed Information Rate (CIR) CIR EBS 2. Committed Burst Size (CBS) Dropped 3. Excess Information rate (EIR) Mark EIR 4. Excess Burst Size (EBS) DEI 5. Color Mode (CM): Customer does/does not Forwarded mark drop eligibility indicator (DEI) Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-21 ©2013 Raj Jain
Metro Ethernet OAM Service Provider Wholesale Provider MEG Service Provider MEG UNI-C Subscriber Wholesale Service Provider UNI-N  ENNI  ENNI  UNI-N  Operation, Administration and Maintenance (OAM) Defined in IEEE 802.1ag, IEEE 802.3ah, and ITU Y.1731 Maintenance end points (MEPs) Maintenance Intermediate Points (MIPs) Maintenance Entity Group (MEG): Level of Administration UNI-C  Subscriber MEP MIP Service Provider MEG Subscriber MEG Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-22 ©2013 Raj Jain
Metro Ethernet OAM (Cont) UNI-C Service Provider UNI-N ENNI Wholesale Service Provider ENNI Subscriber UNI-N  Performance Monitoring: Measure throughput and latency Connectivity Fault Management: Monitor downtime  Service Fault Management  Link Fault Management UNI-C  Subscriber IEEE 802.3ah Link OAM Link OAM ITU-T Y.1731 End-to-End Performance Monitoring IEEE 802.3ag End-to-End Connectivity Fault Management Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-23 Service OAM ©2013 Raj Jain
Metro Ethernet OAM Messages UNI-C Service Provider UNI-N ENNI Wholesale Service Provider ENNI Subscriber UNI-N  Continuity Check Message (CCM) in both directions (Similar to IP Ping) Link Trace Message (LTM): Locates fault. Link Trace Response (LTR) is returned by each end point and intermediate point (similar to IP trace route) UNI-C  Subscriber Service Provider MEG LTM LTRs Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-24 ©2013 Raj Jain
Metro Ethernet Use Cases 2. Internet Subscriber 1 Building B UNI P2P EVC Retail Service Provider UNI UNI Subscriber 1 Building A Access EVC ENNI Head office to Satellite offices and/or Internet UNI 1. Customers to Cloud Service Provider Retail Service Provider Washington University in St. Louis EVC2 Cloud Service Provider Wholesale Access Provider http://www.cse.wustl.edu/~jain/cse570-13/ 7-25 ENNI OVCD ENNI ENNI OVCC OVCB UNI Subscriber 2 UNI OVCA ENNI UNI Subscriber 1 UNI EVC1 ©2013 Raj Jain
Ethernet Provider Bridge (PB) Customer A VLANs 1-100 CE PE Customer B VLANs 1-100 CE PE     Service Provider S-VLAN 1 S-VLAN 2 PE CE Customer A VLANs 1-100 PE CE Customer B VLANs 1-100 IEEE 802.1ad-2005 incorporated in IEEE 802.1Q-2011 Problem: Multiple customers may have the same VLAN ID. How to keep them separate? Solution: Q-in-Q. Provider inserts a service VLAN tag Allows 4K customers to be serviced. Total 16M VLANs C-DA C-SA Type S-VID Type C-VID Type Payload 88A8 8100 Ref: D. Bonafede, “Metro Ethernet Network,” http://www.cicomra.org.ar/cicomra2/asp/TUTORIAL-%20Bonafede.pdf Ref: P. Thaler, et al., “IEEE 802.1Q,” IETF tutorial, March 10 2013, http://www.ietf.org/meeting/86/tutorials/86-IEEE-8021-Thaler.pdf Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-26 ©2013 Raj Jain
Provider Bridge (Cont)  8 Traffic Classes using Differentiated Services Code Points (DSCP) for Assured Forwarding S-Tag Priority 3b Priority 7 6 5 4 3 2 1 0 Washington University in St. Louis CFI S-VLAN ID Type/Length 1b 12b 16b Class Strict Priority AF1 AF2 AF3 AF4 AF5 AF6 Best Effort http://www.cse.wustl.edu/~jain/cse570-13/ 7-27 ©2013 Raj Jain
Provider Backbone Network (PBB) Subscriber Provider Subscriber Subscriber    Provider Backbone Provider Provider Subscriber Subscriber Problem: Number of MAC addresses passing through backbone bridges is too large for all core bridge to remember Broadcast and flooded (unknown address) frames give unwanted traffic and security issues Solution: IEEE 802.1ah-2008 now in 802.1Q-2011 Add new source/destination MAC addresses pointing to ingress backbone bridge and egress backbone bridge Core bridges only know edge bridge addresses http://www.cse.wustl.edu/~jain/cse570-13/ Washington University in St. Louis ©2013 Raj Jain 7-28
MAC-in-MAC Frame Format    Provider backbone edge bridges (PBEB) forward to other PBEB’s and learn customer MAC addresses  PB core bridges do not learn customer MACs B-DA = Destination backbone bridge address Edge Determined by Customer Destination Address Edge Backbone VLANs delimit the broadcast domains in the backbone Core Core Edge Edge Backbone B-DA B-SA Type B-VID Type I-SID C-DA C-SA Type S-VID Type C-VID Type Payload 88A8 88C8 88A8 8100 48b 48b 16b 16b 16b 32b 48b 48b 16b 16b 16b 16b 16b I-Tag  PBB Core switches forward based on Backbone Destination Bridge Address and Backbone-VLAN ID (60 bits) Similar to 802.1ad Q-in-Q. Therefore, same EtherType. Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-29 ©2013 Raj Jain
PBB Service Instance  Service instance ID (I-SID) indicates a specific flow  All frames on a specific port, or  All frames on a specific port with a specific service VLAN, or  All frames on a specific port with a specific service VLAN and a specific customer VLAN SID 1 20 33 401 502 Definition Port 1 Port 2, S-VLAN=10 Port 2, S-VLAN=20 Port 2, S-VLAN=30, C-VLAN=100 Port 3, S-VLAN=40, C-VLAN=200 Washington University in St. Louis B-VLAN 1 3 6 4 4 http://www.cse.wustl.edu/~jain/cse570-13/ 7-30 Port 1 Port 2 B-VLAN=1 B-VLAN=3 B-VLAN=6 Port 3 B-VLAN=4 Service Instance Mapping ©2013 Raj Jain
MAC-in-MAC (Cont) SIDB PBBE SIDA SIDB SIDD   SIDB PBB Core Bridge PBBE SIDC  PBBE PBBE SIDA B-VLAN1 B-VLAN2 PBBE PBBE SIDC SIDD Each Backbone VLANs (B-VLAN) can carry multiple services 24-bit SID  224 Service Instances in the backbone I-Tag format: I-Tag not used in the core. Includes C-DA+C-SA UCA=1  Use customer addresses (used in CFM) Priority Code Point (I-PCP) 3b Drop Eligibility Indicator (I-DEI) Use Customer Address (UCA) Reserved 1 Reserved 2 1b 1b 1b 2b Washington University in St. Louis Service Instance ID (I-SID) Customer Destination Address (C-DA) 24b http://www.cse.wustl.edu/~jain/cse570-13/ 7-31 48b Customer Source Address (C-SA) 48b ©2013 Raj Jain
Connection Oriented Ethernet   Connectionless: Path determined at forwarding  Varying QoS Connection Oriented: Path determined at provisioning  Path provisioned by management  Deterministic QoS  No spanning tree, No MAC address learning,  Frames forwarded based on VLAN Ids and Backbone bridges addresses  Path not determined by customer MAC addresses and other customer fields  More Secure  Reserved bandwidth per EVC  Pre-provisioned Protection path  Better availability Working Path CE PE PE CE Protection Path Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-32 ©2013 Raj Jain
VLAN Cross-Connect    Cross-connect  Circuit oriented Connection Oriented Ethernet with Q-in-Q Forward frames based on VLAN ID and Input port  No MAC Learning Input VLAN Output Port ID Port 1 200 7 2 201 5 3 20 5 3 21 6 4 100 7 4 101 8 Washington University in St. Louis P2P VPN 1 5 Wholesale VoD 2 6 3 7 4 8 VOIP VoD High-Speed Internet Broadcast TV http://www.cse.wustl.edu/~jain/cse570-13/ 7-33 ©2013 Raj Jain
PBB-TE       Provider Backbone Bridges with Traffic Engineering (PBB-TE) IEEE 802.1Qay-2009 now in 802.1Q-2011 Provides connection oriented P2P (E-Line) Ethernet service For PBB-TE traffic VLANs:  Turn off MAC learning  Discard frames with unknown address and broadcasts.  No flooding  Disable Spanning Tree Protocol.  Add protection path switching for each direction of the trunk Switch forwarding tables are administratively populated using management Same frame format as with MAC-in-MAC. No change. Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-34 ©2013 Raj Jain
PBB-TE QoS Classification, Policing, Marking Washington University in St. Louis Scheduling, Remarking Subscriber Shaping http://www.cse.wustl.edu/~jain/cse570-13/ 7-35 UNI-C Service Provider UNI-N Subscriber Wholesale Service Provider ENNI  ENNI  UNI-N  Guarantees QoS  No need for MPLS or SONET/SDH UNI traffic is classified by Port, Service VLAN ID, Customer VLAN ID, priority, Unicast/Multicast UNI ports are policed  Excess traffic is dropped No policing at NNI ports. Only remarking, if necessary. Traffic may be marked and remarked at both UNI and NNI UNI-C  ©2013 Raj Jain
Ethernet Tagged Frame Format Evolution  Original Ethernet C-DA C-SA Type Payload  IEEE 802.1Q VLAN C-DA C-SA Type C-VID Type Payload 8100  IEEE 802.1ad PB C-DA C-SA Type S-VID Type C-VID Type Payload 88A8 8100  IEEE 802.1ah PBB or 802.1Qay PBB-TE B-DA B-SA Type B-VID Type I-SID C-DA C-SA Type S-VID Type C-VID Type Payload 88A8 88C7 88A8 8100 Tag Type Customer VLAN Service VLAN or Backbone VLAN Backbone Service Instance Washington University in St. Louis Value 8100 88A8 88C7 http://www.cse.wustl.edu/~jain/cse570-13/ 7-36 ©2013 Raj Jain
Comparison of Technologies Basic MPLS Ethernet No Protection Fast Reroute No Circuit Based Yes Inefficient Priority Diffserve PB PBB-TE Legacy Services Traffic Engineering Scalability No Protection Fast Reroute VLAN Circuit Based Yes No. P2P only Diffserve+ Diffserve+ Guaranteed Guaranteed Yes (PWE3) No No No Yes No Yes Limited Complex Q-in-Q Cost OAM Low No High Some Medium Yes Q-in-Q+ Mac-in-MAC Medium Yes Resilience Security Multicast QoS Ref: Bonafede Washington University in St. Louis SPB/LAG http://www.cse.wustl.edu/~jain/cse570-13/ 7-37 ©2013 Raj Jain
Summary 1. 2. 3. 4. 5. Carrier networks are moving away from voice oriented networks (SDH, PDH) to data oriented networks (MPLS, Ethernet) Ethernet over Pseudo wires over MPLS is used to interconnect Ethernet switches over long distances Metro Ethernet Forum has defined: EVPL, EVP-LAN, EVPTree, and EVP-Access services Q-in-Q and MAC-in-MAC extensions allow very large Ethernet networks spanning over several backbone carriers PBB-TE extension allows connection oriented Ethernet with QoS guarantees and protection Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-38 ©2013 Raj Jain
Reading List     Fujitsu, “Carrier Ethernet Essentials,” http://www.fujitsu.com/downloads/TEL/fnc/whitepapers/Carrie rEthernetEssentials.pdf (must read) D. Bonafede, “Metro Ethernet Network,” http://www.cicomra.org.ar/cicomra2/asp/TUTORIAL%20Bonafede.pdf P. Thaler, et al., “IEEE 802.1Q,” IETF tutorial, March 10 2013, http://www.ietf.org/meeting/86/tutorials/86-IEEE-8021Thaler.pdf H. Saboowala, M. Abid, S. Modali, "Designing Networks and Services for the Cloud: Delivering business-grade cloud applications and services," Cisco Press 2013, ISBN:1587142945 (Safari Book) Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-39 ©2013 Raj Jain
Wikipedia Links                 http://en.wikipedia.org/wiki/Carrier_Ethernet http://en.wikipedia.org/wiki/Connection-oriented_Ethernet http://en.wikipedia.org/wiki/Differentiated_services http://en.wikipedia.org/wiki/Ethernet_Private_Line http://en.wikipedia.org/wiki/Ethernet_Virtual_Private_Line http://en.wikipedia.org/wiki/IEEE_802.1ad http://en.wikipedia.org/wiki/IEEE_802.1ag http://en.wikipedia.org/wiki/IEEE_802.1ah-2008 http://en.wikipedia.org/wiki/Label-switched_path http://en.wikipedia.org/wiki/Label_Distribution_Protocol http://en.wikipedia.org/wiki/Link_protection http://en.wikipedia.org/wiki/Metro_Ethernet http://en.wikipedia.org/wiki/Metro_Ethernet_Forum http://en.wikipedia.org/wiki/MPLS-TP http://en.wikipedia.org/wiki/MPLS_local_protection http://en.wikipedia.org/wiki/MPLS_VPN Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-40 ©2013 Raj Jain
Wikipedia Links (Cont)                 http://en.wikipedia.org/wiki/Multiprotocol_Label_Switching http://en.wikipedia.org/wiki/Network-to-network_interface http://en.wikipedia.org/wiki/Operations,_administration_and_management http://en.wikipedia.org/wiki/Optical_Carrier_transmission_rates http://en.wikipedia.org/wiki/Optical_Transport_Network http://en.wikipedia.org/wiki/Path_protection http://en.wikipedia.org/wiki/Plesiochronous_digital_hierarchy http://en.wikipedia.org/wiki/Provider_Backbone_Bridge_Traffic_Engineeri ng http://en.wikipedia.org/wiki/Pseudo-wire http://en.wikipedia.org/wiki/Resilient_Packet_Ring http://en.wikipedia.org/wiki/Synchronous_optical_networking http://en.wikipedia.org/wiki/Traffic_policing http://en.wikipedia.org/wiki/Traffic_shaping http://en.wikipedia.org/wiki/User%E2%80%93network_interface http://en.wikipedia.org/wiki/Virtual_Private_LAN_Service http://en.wikipedia.org/wiki/Wavelength-division_multiplexing http://www.cse.wustl.edu/~jain/cse570-13/ Washington University in St. Louis ©2013 Raj Jain 7-41
Acronyms               AF ATM B-VLAN BGP CBS CCM CIR CM CoS DA DEI DSCP DWDM EBS Assured Forwarding Asynchronous Transfer Mode Backbone VLAN Border Gateway Protocol Committed Burst Size Continuity Check Message Committed Information Rate Color Mode Class of Service Destination Address Drop Eligibility Indicator Differentiated Services Code Points Dense Wavelength Division Multiplexing Excess Burst Size Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-42 ©2013 Raj Jain
Acronyms (Cont)               EC ECMP EF EIR ENNI EPL EVC EVP-Access EVP-LAN EVP-Line EVP-Tree EVPL FRG ID Ethernet Connection Equal-cost Multipathing Expedited Forwarding Excess Information rate External Network to Network Interface Ethernet Private Line Ethernet Virtual Connection Ethernet Virtual Private Access Ethernet Virtual Private Local Area Network Ethernet Virtual Private Line Ethernet Virtual Private Tree Ethernet Virtual Private Line Fragmentation Identifier Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-43 ©2013 Raj Jain
Acronyms (Cont)                ITU LAN LDP LSP LSR LTM LTR MAC MEG MEP MIP MP MPLS MTU NNI International Telecommunications Union Local Area Network Label Distribution Protocol Label Switched Paths Label Switching Router Link Trace Message Link Trace Response Media Access Control Maintenance Entity Group Maintenance End Points Maintenance Intermediate Points Multi-Point Multi-Protocol Label Switching Maximum Transmission Unit Network-to-Network Interface Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-44 ©2013 Raj Jain
Acronyms (Cont)               OAM OC OIF OTN OVC PB PBB-TE PBB PBEB PDH PE PW PWE3 QoS Operation, Administration and Maintenance Optical Carrier Optical Interoperability Forum Optical Transmission Network Operator Virtual Connection Provider Bridge Provider Backbone Bridge with Traffic Engineering Provider Backbone Bridge Provider backbone edge bridges Plesiochronous Digital Hierarchy Provider Edge Pseudo-Wire Pseudo-Wire Emulation Edge-to-Edge Quality of Service Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-45 ©2013 Raj Jain
Acronyms (Cont)              SA SDH SHDSL SID SONET TE TTL UNI VC VID VLAN VPLS WDM Source Address Synchronous Digital Hierarchy Single Pair High-Speed Digital Subscriber Line Service Identifier Synchronous optical network Traffic Engineering Time to Live User to Network Interface Virtual Circuit VLAN Identifier Virtual Local Area Network Virtual Private Line Service Wavelength Division Multiplexing Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-46 ©2013 Raj Jain

More Related Content

PDF
MPLS-based Metro Ethernet Networks Tutorial by Khatri
byFebrian ‎
 
PDF
Traffic Engineering Using Segment Routing
byCisco Canada
 
PPTX
Mpls technology
byNaveen Sihag
 
PDF
Deploying IP/MPLS VPN - Cisco Networkers 2010
byFebrian ‎
 
PDF
MPLS L3 VPN Deployment
byAPNIC
 
PPT
Mpls L3_vpn
byReza Farahani
 
PPTX
MPLS VPN
byShahzaib Mahesar
 
PPT
Training document e ran2.2_lte tdd system multiple antenna techniques(mimo an...
byProcExpl
 
MPLS-based Metro Ethernet Networks Tutorial by Khatri
byFebrian ‎
 
Traffic Engineering Using Segment Routing
byCisco Canada
 
Mpls technology
byNaveen Sihag
 
Deploying IP/MPLS VPN - Cisco Networkers 2010
byFebrian ‎
 
MPLS L3 VPN Deployment
byAPNIC
 
Mpls L3_vpn
byReza Farahani
 
MPLS VPN
byShahzaib Mahesar
 
Training document e ran2.2_lte tdd system multiple antenna techniques(mimo an...
byProcExpl
 

What's hot

PDF
Beginners: Different Types of RAN Architectures - Distributed, Centralized & ...
by3G4G
 
PDF
Implementing cisco mpls
byMatiullah Jamil
 
PDF
NETCONF Call Home
byADVA
 
PDF
VRRP (virtual router redundancy protocol)
byNetwax Lab
 
PPT
CCNA PPT
byReetesh Gupta
 
PDF
Segment Routing Lab
byCisco Canada
 
PDF
DWDM 101 - BRKOPT-2016
byBruno Teixeira
 
PDF
5G Network Architecture, Design and Optimisation
by3G4G
 
PDF
Mobile Transport Evolution with Unified MPLS
byCisco Canada
 
PPTX
VPLS Fundamental
byReza Farahani
 
PDF
Ospf.ppt
byEdgardo Scrimaglia
 
PDF
5G NR DSS - Explained Well
byssk
 
PDF
Introduction to Segment Routing
byMyNOG
 
PDF
3GPP 5G NSA Detailed explanation 5（EN-DC Handover Call Flow）
byRyuichi Yasunaga
 
PDF
MPLS Deployment Chapter 1 - Basic
byEricsson
 
PDF
Scaling Beyond 100G With 400G and 800G
byAPNIC
 
PDF
MPLS Concepts and Fundamentals
byShawn Zandi
 
PDF
Prof. Andy Sutton: 5G RAN Architecture Evolution - Jan 2019
by3G4G
 
PDF
5 g core overview
byHemraj Kumar
 
PDF
Segment Routing: A Tutorial
byAPNIC
 
Beginners: Different Types of RAN Architectures - Distributed, Centralized & ...
by3G4G
 
Implementing cisco mpls
byMatiullah Jamil
 
NETCONF Call Home
byADVA
 
VRRP (virtual router redundancy protocol)
byNetwax Lab
 
CCNA PPT
byReetesh Gupta
 
Segment Routing Lab
byCisco Canada
 
DWDM 101 - BRKOPT-2016
byBruno Teixeira
 
5G Network Architecture, Design and Optimisation
by3G4G
 
Mobile Transport Evolution with Unified MPLS
byCisco Canada
 
VPLS Fundamental
byReza Farahani
 
Ospf.ppt
byEdgardo Scrimaglia
 
5G NR DSS - Explained Well
byssk
 
Introduction to Segment Routing
byMyNOG
 
3GPP 5G NSA Detailed explanation 5（EN-DC Handover Call Flow）
byRyuichi Yasunaga
 
MPLS Deployment Chapter 1 - Basic
byEricsson
 
Scaling Beyond 100G With 400G and 800G
byAPNIC
 
MPLS Concepts and Fundamentals
byShawn Zandi
 
Prof. Andy Sutton: 5G RAN Architecture Evolution - Jan 2019
by3G4G
 
5 g core overview
byHemraj Kumar
 
Segment Routing: A Tutorial
byAPNIC
 

Viewers also liked

PDF
Carrier Ethernet
byAnuradha Udunuwara
 
PDF
Carrier Ethernet - What and Why
byAnuradha Udunuwara
 
PDF
Why carrier grade ethernet
byTasuka Hsu
 
PPT
Carrier Ethernet
byvnandlall
 
PDF
Carrier ethernet essentials
bybeachghim
 
DOCX
Glimpse of carrier ethernet
byMapYourTech
 
PPT
Mpls
byrahulvce07
 
PDF
Ethernet Demarcation Devices for managing end to end Ethernet service delivery
byMetrodata Limited
 
PPT
Architectural Options for Metro Carrier-Ethernet Network Buildout: Analysis &...
byVishal Sharma, Ph.D.
 
PPTX
FTTH by Khoerul Anam.pptx
byKhoerul Anam
 
PDF
DIANA: Scenarios for QoS based integration of IP and ATM
byJohn Loughney
 
PPTX
MEF briefing
byRonald Bartels
 
PDF
Mef Carrier Ethernet For Delivery Of Private Cloud Services 20120031
byslongobardo
 
PDF
Ip sobre atm
byTony Angelo Medina
 
PDF
Carrier Ethernet Services -logic-3-5
byRoman Krzanowski
 
PDF
Troubleshooting BGP Juniper Examples
bySalachudin Emir
 
PDF
Troubleshooting BGP
byAPNIC
 
PPT
Juniper idp overview
byMohamed Al-Natour
 
PPTX
Introducing Ethernet Services Suite
byADVA
 
PDF
Carrier ethernet-network-solutions
byMetaswitch NTD
 
Carrier Ethernet
byAnuradha Udunuwara
 
Carrier Ethernet - What and Why
byAnuradha Udunuwara
 
Why carrier grade ethernet
byTasuka Hsu
 
Carrier Ethernet
byvnandlall
 
Carrier ethernet essentials
bybeachghim
 
Glimpse of carrier ethernet
byMapYourTech
 
Mpls
byrahulvce07
 
Ethernet Demarcation Devices for managing end to end Ethernet service delivery
byMetrodata Limited
 
Architectural Options for Metro Carrier-Ethernet Network Buildout: Analysis &...
byVishal Sharma, Ph.D.
 
FTTH by Khoerul Anam.pptx
byKhoerul Anam
 
DIANA: Scenarios for QoS based integration of IP and ATM
byJohn Loughney
 
MEF briefing
byRonald Bartels
 
Mef Carrier Ethernet For Delivery Of Private Cloud Services 20120031
byslongobardo
 
Ip sobre atm
byTony Angelo Medina
 
Carrier Ethernet Services -logic-3-5
byRoman Krzanowski
 
Troubleshooting BGP Juniper Examples
bySalachudin Emir
 
Troubleshooting BGP
byAPNIC
 
Juniper idp overview
byMohamed Al-Natour
 
Introducing Ethernet Services Suite
byADVA
 
Carrier ethernet-network-solutions
byMetaswitch NTD
 

Similar to Carrier Ethernet

PPTX
MPLS Transport network for power utilities
bysomenathtiwary
 
PPTX
MPLS-Based Metro Ethernet
byAPNIC
 
PDF
Cisco Live! :: Carrier Ethernet 2.0 :: BRKSPG-2720 | Las Vegas July/2016
byBruno Teixeira
 
PDF
Ieee ce.dcai
byRama Subramanian
 
PDF
10 fn s21
byScott Foster
 
PDF
10 fn s21
byScott Foster
 
PDF
MPLS-based Metro Ethernet Networks
byAPNIC
 
PDF
Carrier ethernetessentials
byc09271
 
PPTX
Carrier Ethernet
byAzhar Khuwaja
 
PDF
Metro Ethernet Concepts
byAnuradha Udunuwara
 
PDF
Cisco Live! :: Carrier Ethernet 2.0 :: BRKSPG-2720 | Las Vegas July/2016
byBruno Teixeira
 
PPTX
L1 by-mr
bywael-b1
 
PPT
Milcom10 T10 Optical Ethernet Sharma Davari 2010 11 01
byVishal Sharma, Ph.D.
 
PDF
White Paper: IP VPN and Ethernet WAN Services
byMetrodata Limited
 
PPT
Examining Regulatory Environment in the Ethernet world
byArief Gunawan
 
PPTX
Presentation2 RAMPRASAD134.pptxhahshshshhs
bynewshunt535
 
PPT
Asna 0604 keynote_schoen
byAnkit Chaudhary
 
PDF
Metro ethernet-services
byc09271
 
PPTX
ECI UTC Webinar MPLS-TP Value for Utilities-dec 2015
byECI – THE ELASTIC NETWORK™
 
PPTX
MPLS -Novel approach of multi protocol label switching for Asynchronous Trans...
byVatsal Shah
 
MPLS Transport network for power utilities
bysomenathtiwary
 
MPLS-Based Metro Ethernet
byAPNIC
 
Cisco Live! :: Carrier Ethernet 2.0 :: BRKSPG-2720 | Las Vegas July/2016
byBruno Teixeira
 
Ieee ce.dcai
byRama Subramanian
 
10 fn s21
byScott Foster
 
10 fn s21
byScott Foster
 
MPLS-based Metro Ethernet Networks
byAPNIC
 
Carrier ethernetessentials
byc09271
 
Carrier Ethernet
byAzhar Khuwaja
 
Metro Ethernet Concepts
byAnuradha Udunuwara
 
Cisco Live! :: Carrier Ethernet 2.0 :: BRKSPG-2720 | Las Vegas July/2016
byBruno Teixeira
 
L1 by-mr
bywael-b1
 
Milcom10 T10 Optical Ethernet Sharma Davari 2010 11 01
byVishal Sharma, Ph.D.
 
White Paper: IP VPN and Ethernet WAN Services
byMetrodata Limited
 
Examining Regulatory Environment in the Ethernet world
byArief Gunawan
 
Presentation2 RAMPRASAD134.pptxhahshshshhs
bynewshunt535
 
Asna 0604 keynote_schoen
byAnkit Chaudhary
 
Metro ethernet-services
byc09271
 
ECI UTC Webinar MPLS-TP Value for Utilities-dec 2015
byECI – THE ELASTIC NETWORK™
 
MPLS -Novel approach of multi protocol label switching for Asynchronous Trans...
byVatsal Shah
 

More from rjain51

PDF
Raj Jain, Recent Advances, Issues, and Challenges in Cybersecurity, Keynote a...
byrjain51
 
PDF
Internet of Things: Challenges and Issues
byrjain51
 
PDF
SDN and NFV: Facts, Extensions, and Carrier Opportunities
byrjain51
 
PDF
Introduction to Internet of Things
byrjain51
 
PDF
Introduction to Network Function Virtualization (NFV)
byrjain51
 
PDF
Introduction to Software Defined Networking (SDN)
byrjain51
 
PDF
OpenFlow Controllers and Tools
byrjain51
 
PDF
Introduction to OpenFlow
byrjain51
 
PDF
Network Virtualization in Cloud Data Centers
byrjain51
 
PDF
LAN Extension and Network Virtualization for Cloud Computing using Layer 3 Pr...
byrjain51
 
PDF
Networking Issues For Big Data
byrjain51
 
PDF
Big Data Fundamentals
byrjain51
 
PDF
Data Center Networks:Virtual Bridging
byrjain51
 
PDF
Application Delivery Networking
byrjain51
 
PDF
Storage Virtualization
byrjain51
 
PDF
Server Virtualization
byrjain51
 
PDF
Data Center Ethernet
byrjain51
 
PDF
Data Center Network Topologies
byrjain51
 
PDF
Networking Protocols for Internet of Things
byrjain51
 
Raj Jain, Recent Advances, Issues, and Challenges in Cybersecurity, Keynote a...
byrjain51
 
Internet of Things: Challenges and Issues
byrjain51
 
SDN and NFV: Facts, Extensions, and Carrier Opportunities
byrjain51
 
Introduction to Internet of Things
byrjain51
 
Introduction to Network Function Virtualization (NFV)
byrjain51
 
Introduction to Software Defined Networking (SDN)
byrjain51
 
OpenFlow Controllers and Tools
byrjain51
 
Introduction to OpenFlow
byrjain51
 
Network Virtualization in Cloud Data Centers
byrjain51
 
LAN Extension and Network Virtualization for Cloud Computing using Layer 3 Pr...
byrjain51
 
Networking Issues For Big Data
byrjain51
 
Big Data Fundamentals
byrjain51
 
Data Center Networks:Virtual Bridging
byrjain51
 
Application Delivery Networking
byrjain51
 
Storage Virtualization
byrjain51
 
Server Virtualization
byrjain51
 
Data Center Ethernet
byrjain51
 
Data Center Network Topologies
byrjain51
 
Networking Protocols for Internet of Things
byrjain51
 

Recently uploaded

PPTX
Workflow and decision Automation with Flowable
bychakib ch
 
PPTX
Automation Without Apprentices: How AI Challenges the Open Source Way
byIcinga
 
PDF
From Hallucinations to High-Confidence AI with Data Enrichment.pdf
byPrecisely
 
PDF
February 2026 Patch Tuesday hosted by Chris Goettl and Todd Schell
byIvanti
 
PDF
final.pdf
byomarbishtawi04
 
PDF
Digital Twin in IBM for Accelerated Discovery of Climate & Sustainability, K...
byMichiaki Tatsubori
 
PDF
apidays New York 2025 | AI in Application Security
byapidays
 
PDF
Explaining specific examples of purpose-specific BOM
byakipii ogaoga
 
PDF
How AI Can Help Platform Engineers Build Better Platforms
byAll Things Open
 
PPTX
Do You Control the AI, or Does the AI Control You?
bymedhateltoukhy
 
PDF
20260212 Security-JAWS activity results for 2025 and activity goals for 2026
byTyphon 666
 
PDF
NTG -Company Profile_Software_Vendor_Company_in_MENA
byMustafa Kuğu
 
PDF
UiPath Automation Developer Associate Training Series 2026 - Session 3
byDianaGray10
 
PDF
final~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~.pdf
byomarbishtawi04
 
PDF
Spec-Driven Development with Kiro: Elevating Software Quality, Traceability, ...
byHaim Michael
 
PDF
From Artificial Intelligence to African Intelligence: Transforming Research &...
byMoses Kemibaro
 
PPTX
CTO Strategy OS 2026: The Tech, AI & Cloud Playbook Boards Want
byridwansassman
 
PPTX
Introducing VisualSim 2610 The Next Leap in System Level Modeling
byDeepak Shankar
 
PDF
UiPath Automation Developer Associate Training Series 2025 - Session 4
byDianaGray10
 
PPTX
Tech Trends 2026: AI Agents, Quantum Computing, Robotics & Cybersecurity
byridwansassman
 
Workflow and decision Automation with Flowable
bychakib ch
 
Automation Without Apprentices: How AI Challenges the Open Source Way
byIcinga
 
From Hallucinations to High-Confidence AI with Data Enrichment.pdf
byPrecisely
 
February 2026 Patch Tuesday hosted by Chris Goettl and Todd Schell
byIvanti
 
final.pdf
byomarbishtawi04
 
Digital Twin in IBM for Accelerated Discovery of Climate & Sustainability, K...
byMichiaki Tatsubori
 
apidays New York 2025 | AI in Application Security
byapidays
 
Explaining specific examples of purpose-specific BOM
byakipii ogaoga
 
How AI Can Help Platform Engineers Build Better Platforms
byAll Things Open
 
Do You Control the AI, or Does the AI Control You?
bymedhateltoukhy
 
20260212 Security-JAWS activity results for 2025 and activity goals for 2026
byTyphon 666
 
NTG -Company Profile_Software_Vendor_Company_in_MENA
byMustafa Kuğu
 
UiPath Automation Developer Associate Training Series 2026 - Session 3
byDianaGray10
 
final~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~.pdf
byomarbishtawi04
 
Spec-Driven Development with Kiro: Elevating Software Quality, Traceability, ...
byHaim Michael
 
From Artificial Intelligence to African Intelligence: Transforming Research &...
byMoses Kemibaro
 
CTO Strategy OS 2026: The Tech, AI & Cloud Playbook Boards Want
byridwansassman
 
Introducing VisualSim 2610 The Next Leap in System Level Modeling
byDeepak Shankar
 
UiPath Automation Developer Associate Training Series 2025 - Session 4
byDianaGray10
 
Tech Trends 2026: AI Agents, Quantum Computing, Robotics & Cybersecurity
byridwansassman
 

Carrier Ethernet

  • 1.
    Carrier Ethernet . Raj Jain Washington Universityin Saint Louis Saint Louis, MO 63130 Jain@cse.wustl.edu These slides and audio/video recordings of this class lecture are at: http://www.cse.wustl.edu/~jain/cse570-13/ Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-1 ©2013 Raj Jain
  • 2.
    Overview Technologies for DataCenter Interconnection: PDH, SDH, MPLS, PWE3 2. Metro Ethernet Services: E-Line, E-LAN, E-Tree, E-Access 3. Administration and Management Ethernet Services 4. Extensions to Ethernet for carriers: PB (Q-in-Q), PBB (MAC-in-MAC), PBB-TE Note: Although these technologies were originally developed for carriers, they are now used inside multi-tenant data centers (clouds) 1. Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-2 ©2013 Raj Jain
  • 3.
    Options to ConnectTwo Data Centers? Danforth Campus 1. 2. 3. 4. 5. 6. 7. 8. 9. Medical Campus Dedicated Optical fiber (leased from the phone company) Ethernet over Optical Transport Network (all-Optical Switches) Ethernet over Wavelength Division Multiplexing (DWDM) Ethernet over Synchronous Digital Hierarchy (SDH) Ethernet over Plesiochronous Hierarchy (PDH) Ethernet over Pseudo-wire over MPLS Ethernet over Micro-wave Single Pair High-Speed Digital Subscriber Line (SHDSL) Ethernet with enhancements Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-3 ©2013 Raj Jain
  • 4.
    Plesiochronous Digital Hierarchy(PDH)     Plesios + Synchronous = Near synchronous Phone Line = 64 kbps = 1 User channel North America  T1 = 1.544 Mbps = 24 User channels  T2 = 6.312 Mbps = 96 Channels  T3 = 44.736 Mbps = 480 Channels Europe:  E1 = 2.048 Mbps = 32 Channels  E2 = 8.448 Mbps = 128 Channels  E3 = 139.264 Mbps = 2048 Channels Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-4 T1 ©2013 Raj Jain
  • 5.
    SONET/SDH E Ethernet           E S S S S SDH SONET=Synchronous opticalnetwork Standard for digital optical transmission Standardized by ANSI and then by ITU  Synchronous Digital Hierarchy (SDH) Protection: Allows redundant Line or paths Fast Restoration: 50ms using rings Sophisticated management Ideal for Voice: No queues. Guaranteed delay Fixed Payload Rates: OC1=51.84 Mbps, OC3=155M, OC12=622M, OC48=2.4G, OC192=9.5G Rates do not match data rates of 10M, 100M, 1G, 10G Static rates not suitable for bursty traffic One Payload per Stream http://www.cse.wustl.edu/~jain/cse570-13/  High Cost Washington University in St. Louis 7-5 ©2013 Raj Jain
  • 6.
    Multiprotocol Label Switching(MPLS) PBX 1       PBX 3 5 2 3 Allows virtual circuits in IP Networks (May 1996) Each packet has a virtual circuit number called ‘label’ Label determines the packet’s queuing and forwarding Circuits are called Label Switched Paths (LSPs) LSP’s have to be set up before use Allows traffic engineering Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-6 ©2013 Raj Jain
  • 7.
    Label Switching Example EthernetHeader IP Header Payload Ethernet Header 64 IP Header Payload 3 <64> A Label R1 5 <3> <5> R3 B <5> 5 Washington University in St. Louis R2 <2> <3> C 2 3 http://www.cse.wustl.edu/~jain/cse570-13/ 7-7 ©2013 Raj Jain
  • 8.
    IP over MPLSover Ethernet CE PE Carrier Network PE CE PE= Provider Edge CE = Customer Edge Dest. Adr Src. Type MPLS Customer Customer L3 CRC Next Hop Adr /Len Tag Dest. MAC Adr Src. MAC Adr PDU 48b 48b 16b 32b 48b 48b 32b Label Experimental Stack Position Time CoS/Drop-Preced. 1  Bottom to Live 20b 3b 1b 8b   Allows 220 Label switched paths (LSP) Each path can have reserved capacity  MPLS became a very popular Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-8 ©2013 Raj Jain
  • 9.
    Martini Draft  1995-1999: IPover ATM, IP over Ethernet L3 L2  L2 L3  Ethernet IP ATM PPP 2000+: ATM over IP, Ethernet over IP SONET over IP Ethernet ATM IP PPP Idea proposed by Luca Martini of Level 3 Communications and then Cisco Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-9 ©2013 Raj Jain
  • 10.
    Pseudo Wire: L2Circuits over IP CE1 ATM Network PE1 PE2 Pseudo Wire Emulated Service A Frame Relay Network Ethernet CE2 ATM Network B IP Network Frame Relay Network Ethernet Tunnel Hdr Demux Field [Control] ATM ATM ATM ATM Payload Type How to de-assemble payload MPLS/GRE/L2TP - How to get to egress http://www.cse.wustl.edu/~jain/cse570-13/ Washington University in St. Louis ©2013 Raj Jain 7-10
  • 11.
    Ethernet over PWE3over MPLS MPLS Label PW Label [Control] Ethernet Frame w/o FCS PID Flags FRG Length Sequence # 4b 4b 2b 6b 16b        PW1 MPLS LSP PW2 Pseudo-Wire Emulation Edge-to-Edge (PWE3) Multiple pseudo-wires per MPLS LSP PW3 Payload ID (PID): 5=Untagged Ethernet, 4=VLAN tagged, … 4VLAN tag put by carrier and customers may or may not be relevent for forwarding. Determined administratively by PE. Flags: Payload specific. FRG: Used for fragmentation Pause frames are obeyed locally. Not transported. May put 802.1p priority in exp field of MPLS label Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-11 ©2013 Raj Jain
  • 12.
    Virtual Private LANService (VPLS)    Allows multi-point Ethernet services over MPLS networks using pseudo-wires Non-Hierarchical VPLS: Edge routers do complete routing table, label distribution, multicast/broadcast replication  Suitable for small deployments Hierarchical VPLS (H-VPLS): Edge routers communicate with only other edge devices and do not have large routing tables  Suitable for large deployments A CE PE B CE PE A CE PE PE CE B PE Service Provider CE A PE CE CE: Customer Edge PE: Provider Edge B Ref: H. Saboowala, M. Abid, S. Modali, "Designing Networks and Services for the Cloud: Delivering business-grade cloud applications and services," Cisco Press 2013, ISBN:1587142945 http://www.cse.wustl.edu/~jain/cse570-13/ Washington University in St. Louis ©2013 Raj Jain 7-12
  • 13.
    Differentiated Services      A wayfor IP routers to provide QoS Expedited Forwarding (EF): Also known as Premium Service  Virtual leased line  Guaranteed minimum service rate  Policed: Arrival rate < Minimum Service Rate  Not affected by other forwarding classes Assured Forwarding (AF):  Four Classes: No particular ordering  Three drop preference per class: Low, Medium, High Best Effort Service Differentiated Service Code Point (6 bits) encode the service, E.g., 101110 = EF Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-13 ©2013 Raj Jain
  • 14.
    Carriers vs. Enterprise Weneed to exchange topology for optimal routing. Washington University in St. Louis Sorry, We can’t tell you anything about our internal network. http://www.cse.wustl.edu/~jain/cse570-13/ 7-14 ©2013 Raj Jain
  • 15.
    Issue: UNI vsPeer-to-Peer Signaling  Two Business Models:  Carrier: Overlay or cloud  Network is a black-box  User-to-network interface (UNI) to create/destroy light paths (in OIF)  Enterprise: Peer-to-Peer  Complete exchange of information UNI Washington University in St. Louis UNI http://www.cse.wustl.edu/~jain/cse570-13/ 7-15 ©2013 Raj Jain
  • 16.
    UNI vs. ENNI   Userto Network Interface (UNI):  Separates responsibilities between the user and the provider. (Troubleshooting, failures etc).  Like the wired phone box outside your home.  Only one customer’s traffic. External Network to Network Interface (ENNI):  Separates responsibilities between two providers.  Many customer’s traffic passes through an ENNI  Tier 2 operators sell services to Tier 3 service providers. Customer UNI Provider 1 Tier 3 ENNI Provider 2 Tier 2 Ref: Fujitsu, “Carrier Ethernet Essentials,” http://www.fujitsu.com/downloads/TEL/fnc/whitepapers/CarrierEthernetEssentials.pdf http://www.cse.wustl.edu/~jain/cse570-13/ Washington University in St. Louis ©2013 Raj Jain 7-16
  • 17.
    Operator Virtual Connection(OVC)      Between UNI and ENNI or between two ENNIs. For wholesale service providers Two types: Point-to-Point and Multipoint-to-Multipoint Untagged or single tagged frames at NNI. Q-in-Q at ENNI UNIs may be 10 to 100 Mbps. ENNIs at 1 to 10 Gbps. UNI UNI ENNI UNI ENNI Washington University in St. Louis ENNI ENNI UNI http://www.cse.wustl.edu/~jain/cse570-13/ 7-17 ©2013 Raj Jain
  • 18.
    Metro Access EthernetPrivate Line  Access Ethernet Private Line (Access-EPL):  Port-based service for Internet access Like the service at your home.  Ends at your access provider, where many other AccessEPLs may end  Access provider has only one interface Shared by many Access-EPLs Different from p2p EPL. Customer 1 ENNI Customer n E-Access Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-18 ©2013 Raj Jain
  • 19.
    End-to-End Metro EthernetConnection  An EC may go through multiple service providers  Multiple OVCs can be concatenated to create an EC ENNI Wholesale Access Provider OVC1 UNI Subscriber Washington University in St. Louis ENNI Wholesale Transport Provider OVC2 Retail Service Provider OVC3 EC http://www.cse.wustl.edu/~jain/cse570-13/ 7-19 UNI Subscriber ©2013 Raj Jain
  • 20.
    Ethernet Virtual Connections(EVCs)     Port-based ECs: Forwarding not based on VLANs. Frames delivered to remote UNI/ENNI for P2P or Based on destination address for P2MP VLAN-based ECs: Forwarding based on VLAN tag.  Multiple Virtual UNIs  Ethernet Virtual Connection (EVC) More cost-effective for Enterprise customers EVC Types of EVCs: UNI EVC 1. Ethernet Virtual Private Line (EVPL) EVC 2. Ethernet Virtual Private Tree (EVP-Tree) 3. Ethernet Virtual Private LAN (EVPLAN) 4. Access Ethernet Virtual Private Line (Access EVPL) Note: Service providers always share an ENNI for multiple connections  OVCs are always virtual  No OCs Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-20 ©2013 Raj Jain
  • 21.
    Metro Ethernet ServiceAttributes     Bandwidth Profiles: Limits on data dates  Ingress Profile: Incoming data rate  Egress Profile: Outgoing data rate Per UNI, Per EVC or OVC, or Data Per EVC/OVC per Class of Service (CoS) CoS is indicated by the 3-bits in the priority field or CBS 4-bit Differentiated Services Code Point (DSCP) Rate specified by 5 parameters 1. Committed Information Rate (CIR) CIR EBS 2. Committed Burst Size (CBS) Dropped 3. Excess Information rate (EIR) Mark EIR 4. Excess Burst Size (EBS) DEI 5. Color Mode (CM): Customer does/does not Forwarded mark drop eligibility indicator (DEI) Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-21 ©2013 Raj Jain
  • 22.
    Metro Ethernet OAM Service Provider Wholesale Provider MEG Service Provider MEG UNI-C Subscriber Wholesale Service Provider UNI-N  ENNI  ENNI  UNI-N  Operation,Administration and Maintenance (OAM) Defined in IEEE 802.1ag, IEEE 802.3ah, and ITU Y.1731 Maintenance end points (MEPs) Maintenance Intermediate Points (MIPs) Maintenance Entity Group (MEG): Level of Administration UNI-C  Subscriber MEP MIP Service Provider MEG Subscriber MEG Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-22 ©2013 Raj Jain
  • 23.
    Metro Ethernet OAM(Cont) UNI-C Service Provider UNI-N ENNI Wholesale Service Provider ENNI Subscriber UNI-N  Performance Monitoring: Measure throughput and latency Connectivity Fault Management: Monitor downtime  Service Fault Management  Link Fault Management UNI-C  Subscriber IEEE 802.3ah Link OAM Link OAM ITU-T Y.1731 End-to-End Performance Monitoring IEEE 802.3ag End-to-End Connectivity Fault Management Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-23 Service OAM ©2013 Raj Jain
  • 24.
    Metro Ethernet OAMMessages UNI-C Service Provider UNI-N ENNI Wholesale Service Provider ENNI Subscriber UNI-N  Continuity Check Message (CCM) in both directions (Similar to IP Ping) Link Trace Message (LTM): Locates fault. Link Trace Response (LTR) is returned by each end point and intermediate point (similar to IP trace route) UNI-C  Subscriber Service Provider MEG LTM LTRs Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-24 ©2013 Raj Jain
  • 25.
    Metro Ethernet UseCases 2. Internet Subscriber 1 Building B UNI P2P EVC Retail Service Provider UNI UNI Subscriber 1 Building A Access EVC ENNI Head office to Satellite offices and/or Internet UNI 1. Customers to Cloud Service Provider Retail Service Provider Washington University in St. Louis EVC2 Cloud Service Provider Wholesale Access Provider http://www.cse.wustl.edu/~jain/cse570-13/ 7-25 ENNI OVCD ENNI ENNI OVCC OVCB UNI Subscriber 2 UNI OVCA ENNI UNI Subscriber 1 UNI EVC1 ©2013 Raj Jain
  • 26.
    Ethernet Provider Bridge(PB) Customer A VLANs 1-100 CE PE Customer B VLANs 1-100 CE PE     Service Provider S-VLAN 1 S-VLAN 2 PE CE Customer A VLANs 1-100 PE CE Customer B VLANs 1-100 IEEE 802.1ad-2005 incorporated in IEEE 802.1Q-2011 Problem: Multiple customers may have the same VLAN ID. How to keep them separate? Solution: Q-in-Q. Provider inserts a service VLAN tag Allows 4K customers to be serviced. Total 16M VLANs C-DA C-SA Type S-VID Type C-VID Type Payload 88A8 8100 Ref: D. Bonafede, “Metro Ethernet Network,” http://www.cicomra.org.ar/cicomra2/asp/TUTORIAL-%20Bonafede.pdf Ref: P. Thaler, et al., “IEEE 802.1Q,” IETF tutorial, March 10 2013, http://www.ietf.org/meeting/86/tutorials/86-IEEE-8021-Thaler.pdf Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-26 ©2013 Raj Jain
  • 27.
    Provider Bridge (Cont)  8Traffic Classes using Differentiated Services Code Points (DSCP) for Assured Forwarding S-Tag Priority 3b Priority 7 6 5 4 3 2 1 0 Washington University in St. Louis CFI S-VLAN ID Type/Length 1b 12b 16b Class Strict Priority AF1 AF2 AF3 AF4 AF5 AF6 Best Effort http://www.cse.wustl.edu/~jain/cse570-13/ 7-27 ©2013 Raj Jain
  • 28.
    Provider Backbone Network(PBB) Subscriber Provider Subscriber Subscriber    Provider Backbone Provider Provider Subscriber Subscriber Problem: Number of MAC addresses passing through backbone bridges is too large for all core bridge to remember Broadcast and flooded (unknown address) frames give unwanted traffic and security issues Solution: IEEE 802.1ah-2008 now in 802.1Q-2011 Add new source/destination MAC addresses pointing to ingress backbone bridge and egress backbone bridge Core bridges only know edge bridge addresses http://www.cse.wustl.edu/~jain/cse570-13/ Washington University in St. Louis ©2013 Raj Jain 7-28
  • 29.
    MAC-in-MAC Frame Format    Providerbackbone edge bridges (PBEB) forward to other PBEB’s and learn customer MAC addresses  PB core bridges do not learn customer MACs B-DA = Destination backbone bridge address Edge Determined by Customer Destination Address Edge Backbone VLANs delimit the broadcast domains in the backbone Core Core Edge Edge Backbone B-DA B-SA Type B-VID Type I-SID C-DA C-SA Type S-VID Type C-VID Type Payload 88A8 88C8 88A8 8100 48b 48b 16b 16b 16b 32b 48b 48b 16b 16b 16b 16b 16b I-Tag  PBB Core switches forward based on Backbone Destination Bridge Address and Backbone-VLAN ID (60 bits) Similar to 802.1ad Q-in-Q. Therefore, same EtherType. Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-29 ©2013 Raj Jain
  • 30.
    PBB Service Instance  Serviceinstance ID (I-SID) indicates a specific flow  All frames on a specific port, or  All frames on a specific port with a specific service VLAN, or  All frames on a specific port with a specific service VLAN and a specific customer VLAN SID 1 20 33 401 502 Definition Port 1 Port 2, S-VLAN=10 Port 2, S-VLAN=20 Port 2, S-VLAN=30, C-VLAN=100 Port 3, S-VLAN=40, C-VLAN=200 Washington University in St. Louis B-VLAN 1 3 6 4 4 http://www.cse.wustl.edu/~jain/cse570-13/ 7-30 Port 1 Port 2 B-VLAN=1 B-VLAN=3 B-VLAN=6 Port 3 B-VLAN=4 Service Instance Mapping ©2013 Raj Jain
  • 31.
    MAC-in-MAC (Cont) SIDB PBBE SIDA SIDB SIDD   SIDB PBB CoreBridge PBBE SIDC  PBBE PBBE SIDA B-VLAN1 B-VLAN2 PBBE PBBE SIDC SIDD Each Backbone VLANs (B-VLAN) can carry multiple services 24-bit SID  224 Service Instances in the backbone I-Tag format: I-Tag not used in the core. Includes C-DA+C-SA UCA=1  Use customer addresses (used in CFM) Priority Code Point (I-PCP) 3b Drop Eligibility Indicator (I-DEI) Use Customer Address (UCA) Reserved 1 Reserved 2 1b 1b 1b 2b Washington University in St. Louis Service Instance ID (I-SID) Customer Destination Address (C-DA) 24b http://www.cse.wustl.edu/~jain/cse570-13/ 7-31 48b Customer Source Address (C-SA) 48b ©2013 Raj Jain
  • 32.
    Connection Oriented Ethernet   Connectionless:Path determined at forwarding  Varying QoS Connection Oriented: Path determined at provisioning  Path provisioned by management  Deterministic QoS  No spanning tree, No MAC address learning,  Frames forwarded based on VLAN Ids and Backbone bridges addresses  Path not determined by customer MAC addresses and other customer fields  More Secure  Reserved bandwidth per EVC  Pre-provisioned Protection path  Better availability Working Path CE PE PE CE Protection Path Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-32 ©2013 Raj Jain
  • 33.
    VLAN Cross-Connect    Cross-connect Circuit oriented Connection Oriented Ethernet with Q-in-Q Forward frames based on VLAN ID and Input port  No MAC Learning Input VLAN Output Port ID Port 1 200 7 2 201 5 3 20 5 3 21 6 4 100 7 4 101 8 Washington University in St. Louis P2P VPN 1 5 Wholesale VoD 2 6 3 7 4 8 VOIP VoD High-Speed Internet Broadcast TV http://www.cse.wustl.edu/~jain/cse570-13/ 7-33 ©2013 Raj Jain
  • 34.
    PBB-TE       Provider Backbone Bridgeswith Traffic Engineering (PBB-TE) IEEE 802.1Qay-2009 now in 802.1Q-2011 Provides connection oriented P2P (E-Line) Ethernet service For PBB-TE traffic VLANs:  Turn off MAC learning  Discard frames with unknown address and broadcasts.  No flooding  Disable Spanning Tree Protocol.  Add protection path switching for each direction of the trunk Switch forwarding tables are administratively populated using management Same frame format as with MAC-in-MAC. No change. Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-34 ©2013 Raj Jain
  • 35.
    PBB-TE QoS Classification, Policing, Marking Washington Universityin St. Louis Scheduling, Remarking Subscriber Shaping http://www.cse.wustl.edu/~jain/cse570-13/ 7-35 UNI-C Service Provider UNI-N Subscriber Wholesale Service Provider ENNI  ENNI  UNI-N  Guarantees QoS  No need for MPLS or SONET/SDH UNI traffic is classified by Port, Service VLAN ID, Customer VLAN ID, priority, Unicast/Multicast UNI ports are policed  Excess traffic is dropped No policing at NNI ports. Only remarking, if necessary. Traffic may be marked and remarked at both UNI and NNI UNI-C  ©2013 Raj Jain
  • 36.
    Ethernet Tagged FrameFormat Evolution  Original Ethernet C-DA C-SA Type Payload  IEEE 802.1Q VLAN C-DA C-SA Type C-VID Type Payload 8100  IEEE 802.1ad PB C-DA C-SA Type S-VID Type C-VID Type Payload 88A8 8100  IEEE 802.1ah PBB or 802.1Qay PBB-TE B-DA B-SA Type B-VID Type I-SID C-DA C-SA Type S-VID Type C-VID Type Payload 88A8 88C7 88A8 8100 Tag Type Customer VLAN Service VLAN or Backbone VLAN Backbone Service Instance Washington University in St. Louis Value 8100 88A8 88C7 http://www.cse.wustl.edu/~jain/cse570-13/ 7-36 ©2013 Raj Jain
  • 37.
    Comparison of Technologies Basic MPLS Ethernet No Protection FastReroute No Circuit Based Yes Inefficient Priority Diffserve PB PBB-TE Legacy Services Traffic Engineering Scalability No Protection Fast Reroute VLAN Circuit Based Yes No. P2P only Diffserve+ Diffserve+ Guaranteed Guaranteed Yes (PWE3) No No No Yes No Yes Limited Complex Q-in-Q Cost OAM Low No High Some Medium Yes Q-in-Q+ Mac-in-MAC Medium Yes Resilience Security Multicast QoS Ref: Bonafede Washington University in St. Louis SPB/LAG http://www.cse.wustl.edu/~jain/cse570-13/ 7-37 ©2013 Raj Jain
  • 38.
    Summary 1. 2. 3. 4. 5. Carrier networks aremoving away from voice oriented networks (SDH, PDH) to data oriented networks (MPLS, Ethernet) Ethernet over Pseudo wires over MPLS is used to interconnect Ethernet switches over long distances Metro Ethernet Forum has defined: EVPL, EVP-LAN, EVPTree, and EVP-Access services Q-in-Q and MAC-in-MAC extensions allow very large Ethernet networks spanning over several backbone carriers PBB-TE extension allows connection oriented Ethernet with QoS guarantees and protection Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-38 ©2013 Raj Jain
  • 39.
    Reading List     Fujitsu, “CarrierEthernet Essentials,” http://www.fujitsu.com/downloads/TEL/fnc/whitepapers/Carrie rEthernetEssentials.pdf (must read) D. Bonafede, “Metro Ethernet Network,” http://www.cicomra.org.ar/cicomra2/asp/TUTORIAL%20Bonafede.pdf P. Thaler, et al., “IEEE 802.1Q,” IETF tutorial, March 10 2013, http://www.ietf.org/meeting/86/tutorials/86-IEEE-8021Thaler.pdf H. Saboowala, M. Abid, S. Modali, "Designing Networks and Services for the Cloud: Delivering business-grade cloud applications and services," Cisco Press 2013, ISBN:1587142945 (Safari Book) Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-39 ©2013 Raj Jain
  • 40.
    Wikipedia Links                 http://en.wikipedia.org/wiki/Carrier_Ethernet http://en.wikipedia.org/wiki/Connection-oriented_Ethernet http://en.wikipedia.org/wiki/Differentiated_services http://en.wikipedia.org/wiki/Ethernet_Private_Line http://en.wikipedia.org/wiki/Ethernet_Virtual_Private_Line http://en.wikipedia.org/wiki/IEEE_802.1ad http://en.wikipedia.org/wiki/IEEE_802.1ag http://en.wikipedia.org/wiki/IEEE_802.1ah-2008 http://en.wikipedia.org/wiki/Label-switched_path http://en.wikipedia.org/wiki/Label_Distribution_Protocol http://en.wikipedia.org/wiki/Link_protection http://en.wikipedia.org/wiki/Metro_Ethernet http://en.wikipedia.org/wiki/Metro_Ethernet_Forum http://en.wikipedia.org/wiki/MPLS-TP http://en.wikipedia.org/wiki/MPLS_local_protection http://en.wikipedia.org/wiki/MPLS_VPN Washington Universityin St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-40 ©2013 Raj Jain
  • 41.
    Wikipedia Links (Cont)                 http://en.wikipedia.org/wiki/Multiprotocol_Label_Switching http://en.wikipedia.org/wiki/Network-to-network_interface http://en.wikipedia.org/wiki/Operations,_administration_and_management http://en.wikipedia.org/wiki/Optical_Carrier_transmission_rates http://en.wikipedia.org/wiki/Optical_Transport_Network http://en.wikipedia.org/wiki/Path_protection http://en.wikipedia.org/wiki/Plesiochronous_digital_hierarchy http://en.wikipedia.org/wiki/Provider_Backbone_Bridge_Traffic_Engineeri ng http://en.wikipedia.org/wiki/Pseudo-wire http://en.wikipedia.org/wiki/Resilient_Packet_Ring http://en.wikipedia.org/wiki/Synchronous_optical_networking http://en.wikipedia.org/wiki/Traffic_policing http://en.wikipedia.org/wiki/Traffic_shaping http://en.wikipedia.org/wiki/User%E2%80%93network_interface http://en.wikipedia.org/wiki/Virtual_Private_LAN_Service http://en.wikipedia.org/wiki/Wavelength-division_multiplexing http://www.cse.wustl.edu/~jain/cse570-13/ WashingtonUniversity in St. Louis ©2013 Raj Jain 7-41
  • 42.
    Acronyms               AF ATM B-VLAN BGP CBS CCM CIR CM CoS DA DEI DSCP DWDM EBS Assured Forwarding Asynchronous TransferMode Backbone VLAN Border Gateway Protocol Committed Burst Size Continuity Check Message Committed Information Rate Color Mode Class of Service Destination Address Drop Eligibility Indicator Differentiated Services Code Points Dense Wavelength Division Multiplexing Excess Burst Size Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-42 ©2013 Raj Jain
  • 43.
    Acronyms (Cont)               EC ECMP EF EIR ENNI EPL EVC EVP-Access EVP-LAN EVP-Line EVP-Tree EVPL FRG ID Ethernet Connection Equal-costMultipathing Expedited Forwarding Excess Information rate External Network to Network Interface Ethernet Private Line Ethernet Virtual Connection Ethernet Virtual Private Access Ethernet Virtual Private Local Area Network Ethernet Virtual Private Line Ethernet Virtual Private Tree Ethernet Virtual Private Line Fragmentation Identifier Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-43 ©2013 Raj Jain
  • 44.
    Acronyms (Cont)                ITU LAN LDP LSP LSR LTM LTR MAC MEG MEP MIP MP MPLS MTU NNI International TelecommunicationsUnion Local Area Network Label Distribution Protocol Label Switched Paths Label Switching Router Link Trace Message Link Trace Response Media Access Control Maintenance Entity Group Maintenance End Points Maintenance Intermediate Points Multi-Point Multi-Protocol Label Switching Maximum Transmission Unit Network-to-Network Interface Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-44 ©2013 Raj Jain
  • 45.
    Acronyms (Cont)               OAM OC OIF OTN OVC PB PBB-TE PBB PBEB PDH PE PW PWE3 QoS Operation, Administrationand Maintenance Optical Carrier Optical Interoperability Forum Optical Transmission Network Operator Virtual Connection Provider Bridge Provider Backbone Bridge with Traffic Engineering Provider Backbone Bridge Provider backbone edge bridges Plesiochronous Digital Hierarchy Provider Edge Pseudo-Wire Pseudo-Wire Emulation Edge-to-Edge Quality of Service Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-45 ©2013 Raj Jain
  • 46.
    Acronyms (Cont)              SA SDH SHDSL SID SONET TE TTL UNI VC VID VLAN VPLS WDM Source Address SynchronousDigital Hierarchy Single Pair High-Speed Digital Subscriber Line Service Identifier Synchronous optical network Traffic Engineering Time to Live User to Network Interface Virtual Circuit VLAN Identifier Virtual Local Area Network Virtual Private Line Service Wavelength Division Multiplexing Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ 7-46 ©2013 Raj Jain