- Time Warner Cable provides MEF CE 2.0 certified Ethernet services with various service types and performance tiers depending on geographic area.
- Services support multiple classes of service and quality of service features like VLAN tagging and priority marking. Bandwidths range from 512 Kbps to 10 Gbps.
- The document provides details on interfaces, network performance objectives, frame handling and other technical specifications for TWC's Ethernet services.
The importance of Ethernet, as the all-pervasive fixed infrastructure data transport vehicle of the Corporate 'Local-Area Network' (LAN), is such that it can be regarded as nothing less than a fundamental utility for IT connectivity. Increasingly, Ethernet is also the network media of choice for Corporate Telephony deployments, via the growth of Voice over IP (VoIP). Not surprisingly, Ethernet is now starting to be adopted as a transport for Wide-Area Network (WAN) connectivity. In fact, Telecoms Service Providers have offered physical Ethernet access for many years, but most almost exclusively such connections have been delivered via Edge Routers, supplied as the 'Customer Premise Equipment' (CPE) element of a 'Managed IP' network service. Only relatively recently though has Ethernet been offered as a native transport solution, offering the Corporate user a highly flexible, scalable bandwidth solution, unfettered by the complexity of IP addressing schema and the potential performance and limited 'Quality of Service' characteristics of Routed infrastructures.The MetroCONNECT family of Ethernet Service Delivery products enables the Telecoms Service Provider to offer Ethernet services delivered over a range of Access Network Transport architectures.
With Japan being the world’s third largest economy, and Tokyo consisting of 35 million people in the largest metropolitan economy in the world, this market undoubtedly has boundless opportunities for the taking. The question is how to enter this market without local language capabilities or in-depth local market knowledge. Over 30 international carriers operating in Japan will attest to a simple answer: KVH
Working with KVH means you can speak your language and use your
currency when doing business in Japan. This includes working with a fully bilingual Service Desk and Operations team in Japanese and English, who are managing and monitoring your networks on a 24x7 basis, as well as developing contracts and service notifications that you can actually understand.
What’s more, we offer access to every building in Japan via KVH’s own
domestic fiber network in Tokyo, Osaka, Yokohama and surrounding areas. When your solution is designed it can be installed in 2 or 6 week intervals and handled by our remote hands service, meaning your solution is up and running, no matter where you or your business is operating.
It’s that easy.
As for the network itself, it also expands connectivity across Asia and
leverages our points of presence (POPs) in Tokyo, Osaka, Singapore, Hong Kong, Seoul, Busan, and Chicago. Put simply, we’re everywhere you need us to be.
In addition to offering industry-renowned networks, we act as your one
stop shop for all Asia-based operations with smart and remote hands
services, colocation, and hosting facilities, ensure rapid on-demand delivery of on-net network services, and provide the Professional Services to deliver an information platform that manages your needs as cost efficiently as possible.
It is for all these reasons and more that we can tell customers to Relax, We Have Japan Covered.
The importance of Ethernet, as the all-pervasive fixed infrastructure data transport vehicle of the Corporate 'Local-Area Network' (LAN), is such that it can be regarded as nothing less than a fundamental utility for IT connectivity. Increasingly, Ethernet is also the network media of choice for Corporate Telephony deployments, via the growth of Voice over IP (VoIP). Not surprisingly, Ethernet is now starting to be adopted as a transport for Wide-Area Network (WAN) connectivity. In fact, Telecoms Service Providers have offered physical Ethernet access for many years, but most almost exclusively such connections have been delivered via Edge Routers, supplied as the 'Customer Premise Equipment' (CPE) element of a 'Managed IP' network service. Only relatively recently though has Ethernet been offered as a native transport solution, offering the Corporate user a highly flexible, scalable bandwidth solution, unfettered by the complexity of IP addressing schema and the potential performance and limited 'Quality of Service' characteristics of Routed infrastructures.The MetroCONNECT family of Ethernet Service Delivery products enables the Telecoms Service Provider to offer Ethernet services delivered over a range of Access Network Transport architectures.
With Japan being the world’s third largest economy, and Tokyo consisting of 35 million people in the largest metropolitan economy in the world, this market undoubtedly has boundless opportunities for the taking. The question is how to enter this market without local language capabilities or in-depth local market knowledge. Over 30 international carriers operating in Japan will attest to a simple answer: KVH
Working with KVH means you can speak your language and use your
currency when doing business in Japan. This includes working with a fully bilingual Service Desk and Operations team in Japanese and English, who are managing and monitoring your networks on a 24x7 basis, as well as developing contracts and service notifications that you can actually understand.
What’s more, we offer access to every building in Japan via KVH’s own
domestic fiber network in Tokyo, Osaka, Yokohama and surrounding areas. When your solution is designed it can be installed in 2 or 6 week intervals and handled by our remote hands service, meaning your solution is up and running, no matter where you or your business is operating.
It’s that easy.
As for the network itself, it also expands connectivity across Asia and
leverages our points of presence (POPs) in Tokyo, Osaka, Singapore, Hong Kong, Seoul, Busan, and Chicago. Put simply, we’re everywhere you need us to be.
In addition to offering industry-renowned networks, we act as your one
stop shop for all Asia-based operations with smart and remote hands
services, colocation, and hosting facilities, ensure rapid on-demand delivery of on-net network services, and provide the Professional Services to deliver an information platform that manages your needs as cost efficiently as possible.
It is for all these reasons and more that we can tell customers to Relax, We Have Japan Covered.
Replacing end-of-life PDH/SDH/SONET multiplexers in critical infrastructure communications. Learn how to deal with legacy equipment obsolescence and leased line service termination by Telcos, while preparing for smart applications and new packet services.
Class lecture by Prof. Raj Jain on Carrier Ethernet. The talk covers Options to Connect Two Data Centers?, Plesiochronous Digital Hierarchy (PDH), SONET/SDH, Multiprotocol Label Switching (MPLS), Label Switching Example, IP over MPLS over Ethernet, Martini Draft, Pseudo Wire: L2 Circuits over IP, Ethernet over PWE3 over MPLS, Virtual Private LAN Service (VPLS), Differentiated Services, Carriers vs. Enterprise, Issue: UNI vs Peer-to-Peer Signaling, UNI vs. ENNI, Operator Virtual Connection (OVC), Metro Access Ethernet Private Line, End-to-End Metro Ethernet Connection, Ethernet Virtual Connections (EVCs), Metro Ethernet Service Attributes, Metro Ethernet OAM, Metro Ethernet OAM Messages, Metro Ethernet Use Cases, Ethernet Provider Bridge (PB), Provider Backbone Network (PBB), MAC-in-MAC Frame Format, PBB Service Instance, Connection Oriented Ethernet, VLAN Cross-Connect, PBB-TE, PBB-TE QoS, Ethernet Tagged Frame Format Evolution, Comparison of Technologies. Video recording available in YouTube.
A presentation on MTNL's distinctive competitive advantage. The presentation also focuses on various aspects mergers, joint ventures and SBU's of MTNL all across globe
This study guide is intended to provide those pursuing the CCNA certification with a framework of what concepts need to be studied. This is not a comprehensive document containing all the secrets of the CCNA, nor is it a “braindump” of questions and answers.
I sincerely hope that this document provides some assistance and clarity in your studies.
Replacing end-of-life PDH/SDH/SONET multiplexers in critical infrastructure communications. Learn how to deal with legacy equipment obsolescence and leased line service termination by Telcos, while preparing for smart applications and new packet services.
Class lecture by Prof. Raj Jain on Carrier Ethernet. The talk covers Options to Connect Two Data Centers?, Plesiochronous Digital Hierarchy (PDH), SONET/SDH, Multiprotocol Label Switching (MPLS), Label Switching Example, IP over MPLS over Ethernet, Martini Draft, Pseudo Wire: L2 Circuits over IP, Ethernet over PWE3 over MPLS, Virtual Private LAN Service (VPLS), Differentiated Services, Carriers vs. Enterprise, Issue: UNI vs Peer-to-Peer Signaling, UNI vs. ENNI, Operator Virtual Connection (OVC), Metro Access Ethernet Private Line, End-to-End Metro Ethernet Connection, Ethernet Virtual Connections (EVCs), Metro Ethernet Service Attributes, Metro Ethernet OAM, Metro Ethernet OAM Messages, Metro Ethernet Use Cases, Ethernet Provider Bridge (PB), Provider Backbone Network (PBB), MAC-in-MAC Frame Format, PBB Service Instance, Connection Oriented Ethernet, VLAN Cross-Connect, PBB-TE, PBB-TE QoS, Ethernet Tagged Frame Format Evolution, Comparison of Technologies. Video recording available in YouTube.
A presentation on MTNL's distinctive competitive advantage. The presentation also focuses on various aspects mergers, joint ventures and SBU's of MTNL all across globe
This study guide is intended to provide those pursuing the CCNA certification with a framework of what concepts need to be studied. This is not a comprehensive document containing all the secrets of the CCNA, nor is it a “braindump” of questions and answers.
I sincerely hope that this document provides some assistance and clarity in your studies.
Quality of Service for Video Streaming using EDCA in MANETijsrd.com
Mobile Ad-hoc network(MANET) is a collection of wireless terminals that are able to dynamically form a temporary network. To establish such a network no fixed infrastructure is required. Here, it is the responsibility of network nodes to forward each other's packets and thus these nodes also act as routers. In such a network resources are limited and also topology changes dynamically. So providing Quality of service(QoS) is also necessary. QoS is more important for real time applications for example Video Streaming. IEEE 802.11e network standard supports QoS through EDCA technique. This technique does not fulfill the requirements of QoS. So, in this project modified EDCA technique is proposed to enhance QoS for Video Streaming application. This technique is implemented in NS2 and compared with traditional EDCA.
Telecoms Carriers and Service Providers use Managed Ethernet Demarcation Devices (EDDs) to provide full end-to-end visibility and control of their Layer-2 infrastructure.
Advanced EDDs incorporate test-traffic generation and protocols such as ITU-T Y.1731 to monitor key service-level characteristics such as Frame Loss, Latency and Jitter.
Now, it is possible to incorporate fibre integrity checking and fault-reporting to such devices. Specifically, Optical Time Domain Reflectometer (OTDR) functionality, integrated directly into EDD fibre interfaces, provides a cost-effective solution to Carriers for fibre fault determination and localisation, reducing costs and time-to-repair for customer services.
Ethernet technology has emerged as a cost-effective, mature, robust, high-speed, and versatile choice for MAN/WAN networking of critical defense establishments and military installations – for e.g., army, navy, and air force bases, mission commands, remote war centers, the Pentagon, and other security agencies. Intelligent Ethernet helps to achieve IP-centric service requirements, while enabling wireless and fixed-line networks to evolve to a fast, economical, packet-switched infrastructure. The last few years have seen tremendous advancements in Ethernet architecture, its features, switch/router system design, and its integration with optical technologies. This tutorial provides a clear conceptual overview of optical Ethernet technology advances, network architectures, and benefits for military and defense network planners, network architects, and system engineers.
1. Internet | Voice | TelevisioN | Network Services | Cloud Services
ethernet solutions
Technical Specifications
service SPECIFICATIONS
Time Warner Cable Business Class Ethernet Services are MEF CE 2.0 certified for all eight service types, multiple CoS (Class of Service) and all
Performance Tiers (PT). The following section outlines the standards associated with the services that Time Warner Cable Business Class will market
and support as part of their suite of Ethernet Services.
Each of the following service attributes is common to all TWC Ethernet Services. Each parameter meets or exceeds those outlined by MEF CE 2.0.
More specific details for each of the services can be found in the Service Types section of this document.
UNI (User-to-Network Interface)
All Time Warner Cable Business Class Ethernet Services utilize a MEF CE 2.0 certified Ethernet Network Interface Device (NID) as the demarcation point
between TWC and the customer. The TWC NID provides bidirectional, full duplex transmission of Ethernet frames using a standard IEEE 802.3-2005
Ethernet User-to-Network Interface (UNI) that also provides the ability to manage and monitor the performance of TWC Ethernet Services.
TWC supports multiple types of UNI’s by which to interconnect customers. Figure 1 outlines the TWC-supported physical UNI’s along with the
recommended bandwidths:
Time Warner Cable (TWC) Business Class Ethernet Services provides best-in-class MEF CE 2.0 certified, high-speed, Metro-Ethernet services
that are geographically agnostic, distance insensitive—servicing TWC Customers nationwide.
Time Warner Cable Business Class Ethernet Service is an offering of MEF Carrier Ethernet 2.0 defined E-Line and E-LAN services, providing point-to-
point Ethernet Private Line (EPL), point-to-multipoint Ethernet Virtual Private Line (EVPL), and multipoint-to-multipoint Ethernet Private LAN (EP-LAN)
service configurations. Each, a carrier grade Layer-2 transport service where Ethernet packets are transported and delivered over TWC’s advanced
optical fiber network making it possible to meet bandwidth demands with a cost-effective, scalable alternative to legacy connectivity solutions such as
TDM, SONET, ATM and Frame Relay.
Time Warner Cable Business Class Ethernet Service is an end-to-end Ethernet network service where businesses attach their LAN to a User-Network
Interface (UNI) using a standard copper or fiber Ethernet interface to access the TWC Ethernet service.
Time Warner Cable Business Class Ethernet Services are available in multiple bandwidth tiers ranging from 512 Kbps up to 10 Gbps, using 100 Mbps
(100baseT) and 1 Gbps (GigE) UNI interfaces.
Time Warner Cable Business Class Ethernet Services are suitable for all businesses including Financial, Healthcare, Education, Government, IT, Retail,
Real Estate, Legal, Media, and many other verticals.
• Site-to-Site Access/Transport (Layer 2, Layer 3)
• Internet Access
• Server Farm Consolidation & Virtualization
• Business Continuity/Disaster Recovery
• Cloud-based Business Applications
• Distributed Storage Area Networks (SAN)
• Voice over IP (VoIP)
• Video and Digital Imaging Distribution (Streaming/Interactive)
UNI PHYSICAL INTERFACE UNI SPEED CABLE TYPES
SUPPORTED SERVICE
BANDWIDTHS
100BASE-T
(FastE)
100 Mbps
Category 5e (Cat5e)
Category 6 (Cat6) or above
512 Kbps up to 100 Mbps
1000BASE-T
(GigE)
1000 Mbps or 1 Gbps
Category 5e (Cat5e)
Category 6 (Cat6) or above
Up to 10 Gbps
1000BASE-SX
100BASE-LX
1000 Mbps or 1 Gbps
Optical-Fiber
MMF, SMF
Up to 10 Gbps
TWC supports Layer 2 (VLAN), Layer 3 (IP), and higher applications such as:
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UNI Mode (Speed & Duplex)
Time Warner Cable Business Class Ethernet Services allow customers to choose their method of interface speed settings. By default, all TWC UNI’s
are set for Auto-Negotiation, which allows for automatic determination of speed between the customer Ethernet interface and the UNI.
The following chart outlines the available UNI-Speed and Duplex options:
Ethernet Virtual Connection (EVC)
Ethernet Virtual Connections (EVC) is a MEF defined Layer 2 bridging architecture that associates two or more UNI’s. Time Warner Cable Business Class
Ethernet Services will provision two EVC types:
Maximum # of UNI’S
Time Warner Cable Business Class Ethernet Services support a specified number of UNI’s (customer locations) for each of its service types.
All TWC UNI interfaces are set to Full Duplex. This allows the customer to transmit data in both directions simultaneously in a bi-directional method.
Point-to-Point – EPL & EVPL Services
Multipoint-to-Multipoint – EPLAN Service
UNI PHYSICAL INTERFACE UNI setting options duplex setting
100BASE-T
(FastE)
AUTO-NEGOTIATION or
HARD CODED (100 Mbps)
FULL DUPLEX
1000BASE-T
(GigE)
AUTO-NEGOTIATION or
HARD CODED (1 Gbps)
FULL DUPLEX
1000BASE-SX
100BASE-LX
AUTO-NEGOTIATION or
HARD CODED (1 Gbps)
FULL DUPLEX
Service Type (EVC Type) Maximum # oF UNI’s
EPL (point-to-point) 2
EVPL (point-to-point) 8 or 64 (Depends on UNI Speed)
EPLAN (multipoint-to-multipoint) 62
POINT-TO-POINT
EVC
tWc ethernet
netWorK
uniuni
POINT-TO-POINT
EVC
tWc ethernet
netWorK
uni
uni
uni
service
Multiplexed
MULTIPOINT-TO-MULTIPOINT
EVC
tWc ethernet
netWorK
uni
uniuni
uni
3. Internet | Voice | TelevisioN | Network Services | Cloud Services
EVC’s Per UNI
Each of the Time Warner Cable Business Class Ethernet Services will support the maximum number of EVC’s outlined below:
MAC Addresses
Time Warner Cable Business Class Ethernet Services support up to 1000 MAC Addresses per TWC service instance for all Ethernet Services.
Service Maximum Transmission Unit (MTU)
The Service MTU Frame Size is the maximum service frame size (in bytes) allowed to transmit beyond the UNI. Time Warner Cable Business Class
Ethernet Services offers two options for MTU Frame Size:
• Standard MTU - up to 1544 bytes
• Jumbo MTU - up to 9000 bytes.
The MTU applies to untagged and tagged-802.1Q Ethernet frames.
Customer Edge VLAN’s (CE-VLAN ID)
Business Class Ethernet Services support untagged and tagged (802.1Q VLAN) customer data traffic. All Business Class Ethernet Services support a
maximum of 4095 -802.1Q VLAN’s per service instance.
Customer VLAN Preservation
All Customer VLAN ID’s and Priority Code Points (PCP - IEEE 802.1p) markings for Class of Service (CoS) are transmitted through the UNI’s, across the
network and received at the destination unaltered by the Business Class Ethernet Service.
Please note: TWC reserves the right to reserve one VLAN for network management purposes, in which case that VLAN would not be available for the customers use.
Ethernet Virtual Private Line (EVPL) is a Hub and Spoke architecture. The number of EVC’s that can be ‘Service Multiplexed’ on a UNI port is determined
by the UNI speed and aggregate service bandwidth. The following table outlines the number of EVC’s that can be Service Multiplexed for EVPL services:
Service Type (EVC Type) Maximum # of EVC’S
EPL (point-to-point) 1
EPLAN (multipoint-to-multipoint) 1
Service Type (EVC Type) UNI SPEED Maximum # of EVC’s
Maximum Allowed
Bandwidth Tier Per EVC**
EVPL (point-to-point)
100 Mbps
8 per Hub Location
1 per Spoke Location
10 Mbps
10 Gbps
64 per Hub Location
1 per Spoke Location
150 Mbps
**NOTE: Any combination of allowed bandwidth not to exceed UNI Speed
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Class of Service (CoS)
Class of Service (CoS) allows for the differentiation of service performance levels for different types of network data traffic. CoS is used to prioritize
data traffic within the network including the designated Ethernet Service.
As part of the MEF CE 2.0 certification, Time Warner Cable Business Class Ethernet Services are certified to support multiple CoS.
Our current Service Offerings provide a single Class of Service, providing the highest service classification to our customers – free of network
congestion and always available. We relay this to customers through our SLA’s and defined Performance Tiers which are defined by the geographic
service area.
Customers may define internal Classes of Service which will be preserved through the Ethernet transport or customer’s may elect to utilize the TWC
Managed Router Service which has the ability to manage customers internal CoS.
Time Warner Cable Business Class Ethernet Services will offer CoS in the near future.
Service Performance Tiers
The Time Warner Cable Business Class Ethernet Services provide a best-in-class service offering with defined Ethernet Performance Tiers to coincide
with the customer’s geographic service area.
Each of the defined Performance Tiers (PT) coincide with the TWC Service Level Agreement (SLA). Each Performance Tier has a defined objective for
Frame Delay (FD), Frame Loss (FL) and Frame Delay Variation (FDV).
Figure 2 provides the service performance tiers based on service geography:
Ethernet Frame Delivery
Data frames are differentiated into three categories: Unicast Service Frames, Multicast Service Frames and Broadcast Services Frames, which are based on
the destination MAC Address. Frames are categorized at the ingress UNI and must adhere to the following TWC disposition rules for Frame Delivery:
• Delivery Unconditionally – All frames are delivered to the egress UNI(s)
• Delivery Conditionally – Frames meeting the defined conditions are delivered to the egress UNI(s)
Time Warner Cable Business Class Ethernet Services adhere to the following rules for handling each type of frame type:
Figure 2: Performance Tier Objectives
SERVICE AVAILABILITY
MEAN TIME TO RESTORE
(“MTTR”)
LATENCY (ROUNDTRIP) PACKET LOSS
Ethernet (Metro and
Regional Services)
End-to-End: 99.99%
(On-Net Circuit)
Outages within 4 hours 10ms - 45ms <0.1%
Service Frame Type Frame Disposition Notes
Unicast Deliver Unconditionally All Unicast Service Frames will be delivered Unconditionally for all services
Unknown Unicast Deliver Conditionally
By default limits the amount of BUM traffic to 1 Mbps.
This is an option that can be removed at customer request.
Multicast Deliver Conditionally
By default limits the amount of BUM traffic to 1 Mbps.
This is an option that can be removed at customer request.
Broadcast Deliver Conditionally
By default limits the amount of BUM traffic to 1 Mbps.
This is an option that can be removed at customer request.
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Bandwidth Profiles
Bandwidth Profiles (BWP) enforce limits on bandwidth utilization according to the defined Service Level Agreements (SLA’s) agreed upon by the
customer and Time Warner Cable Business Class. The Bandwidth Profile enforces the defined Committed Information Rate (CIR) agreed upon in the SLA
and also specifies how excess data should be handled.
TWC Ethernet Services use an ingress traffic policing policy to restrict traffic flows to the subscribed CIR. If the transmitted bandwidth exceeds the
defined CIR and Committed Burst Size (CBS), the traffic will be subject for discard.
Layer 2 Control Protocol (L2CP) Processing
The Time Warner Cable Business Class Ethernet Service will discard, tunnel/transmit, or peer/process certain L2CP service frames at each UNI location.
TWC adheres to the MEF policy for the disposition of L2CP service frames which is listed below. The default disposition is to discard all customer L2CP
frames not tunneled/transmitted.
L2 Control Protocol Destination MAC Address
L2CP Frame Disposition/
Action
Ethertype/Subtype
STP, RSTP, MSTP 01-80-C2-00-00-00 Tunnel NA
GARP, MRP
01-80-C2-00-00-20 thru
01-80-C2-00-00-2F
Tunnel NA
PAUSE 01-80-C2-00-00-01 Discard 0x8808
LACP/LAMP 01-80-C2-00-00-02 Peer or Discard 0x8809 /01 /02
Link OAM 01-80-C2-00-00-02 Peer or Discard 0x8809 /03
ESMC 01-80-C2-00-00-02 Peer or Discard 0x8809 /0A
802.1X 01-80-C2-00-00-03 Discard 0x888E
Not Defined
01-80-C2-00-00-04 thru
01-80-C2-00-00-06
Discard NA
E-LMI 01-80-C2-00-00-07 Discard 0x88EE
Not Defined
01-80-C2-00-00-08 thru
01-80-C2-00-00-0A
Discard NA
LLDP 01-80-C2-00-00-0E Discard 0x88CC
CDP, VTP 01-00-0C-CC-CC-CC Tunnel
Figure 4: L2CP Frame Disposition
Please Note: Cisco Discovery Protocol (CDP) frames will be Tunneled/Transmitted
6. Internet | Voice | TelevisioN | Network Services | Cloud Services
UNI INTERFACE ATTRIBUTES UNI VALUES NOTES
UNIINTERFACE
UNI Identifier (UNI ID) Granite Device ID Unique alpha-numeric identifier for the UNI
UNI-C Interface (Ethernet PHY)
& Speed
4 100 Mbps (BaseT)
4 1000 Mbps (BaseT)
4 1000 Mbps (BaseFX)
10 Gbps (Base FX) - ICB
UNI Physical interface interconnection (handoff) at customer location.
Physical interface and speed of the UNI-C as defined by IEEE 802.3-
2005 standard.
Default Customer handoff is 1000Mb TX (Category 6 Cable)
UNI-C Mode
4 FULL Duplex
AUTO Negotation
Hard Coded (100 Mb or 1 Gb)
The UNI supports FULL duplex or AUTO-Negotiation
Default is Auto-Negotiation
MAC Layer IEEE 802.3-2005
TWC Ethernet Services support IEEE 802.3-2005 frame formats.
Service MTU
4 1544 Bytes (Standard)
9000 Bytes (Jumbo)
TWC Standard MTU is 1544 Bytes
Jumbo is 9000 Bytes
UNI SERVICE ATTRIBUTES All UNI’S NOTES
UNISERVICE
ATTRIBUTE
All-to-One Bundling YES EPL Service is “All-to-One Bundling”
Maximum # CE-VLAN ID’s
(Customer VLAN’s)
4095
EPL Service supports Untagged and Tagged traffic (4095 customer
VLANs)
Maximum # of EVCs 1 (One) Maximum of 1 EVC per service instance
EVC PER UNI SERVICE ATTRIBUTES
LOCATION BW PROFILE
(Per Location)
NOTES
INGRESSBWPROFILE
perEVC
Ingress BW Profile per EVC:
CIR (in Mbps)
Based on purchased service speed Based on service speed
CBS (in Bytes) > = 1544 Bytes (8x MTU) ≥ 1544 Bytes (Largest Service Frame size)
EIR (in Mbps) 0 Not Defined
EBS (in Bytes) 0 Not Defined
Color-Mode (CM) Color Blind Color-blind
Coupling Flag (CF) NA Not specified
EVC PER UNI SERVICE ATTRIBUTES PT1 SLA (METRO) PT2 SLA (REGIONAL) PT3 SLA (NATIONAL)
CLASSofSERVICE
Service Performance: TWC Standard SLA’s TWC Carrier SLA’s TWC Carrier SLA’s
CoS Identifier (CoS ID): High (Default) Not Yet Defined Not Yet Defined
Frame Delay (FD): < = 10 ms TBD TBD
Frame Delay Variation (FDV): < = 3 ms TBD TBD
Frame Loss Ratio (FLR): < = 0.01 (99.99% Delivery) TBD TBD
EPL SERVICE ATTRIBUTES