L3 and Multicasting PPT by NETWORKERS HOME
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The document discusses layer 3 routing and multicasting in a typical enterprise network. It covers layer 3 considerations at the access and aggregation levels, including advantages like smaller layer 2 domains and drawbacks like more configuration points. It also discusses licensing requirements for routing protocols on Nexus platforms, as well as support for protocols like OSPF, EIGRP, and BGP.
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This session provides an overview of the Next Generation Network Architecture with Segment Routing technology that helps Service Providers to simplify the network. You will get an understanding of the basic concepts behind the technology and its wide applicability ranging from simple transport for MPLS services, disjoint routing, traffic engineering and its benefits in the context of software defined networking. Previous knowledge of IP routing and MPLS is beneficial to understand Segment Routing.
Final Presentation on the Network layer
This document provides an overview of the network layer and some of its key protocols. It begins with an introduction to the network layer and its main responsibilities, including routing packets between subnets that may have different addressing schemes or protocols. It then discusses some of the network layer's main functionalities and features. The remainder of the document defines and describes several important network layer protocols, including EIGRP, ICMP, IGMP, IPv4, and others. It provides high-level explanations of how these protocols function and their roles within the network layer.
1Routing Basics.pdf
1. Today, an internet can be so large that one routing protocol cannot handle the task of updating the routing tables of all routers. For this reason, an internet is divided into autonomous systems.
2. An autonomous system (AS) is a group of networks and routers under the authority of a single administration. Routing inside an autonomous system is called intra-domain routing. Routing between autonomous systems is called inter-domain routing.
3. Popular intra-domain routing protocols include RIP, IGRP, EIGRP, and OSPF. The Border Gateway Protocol (BGP) is an example of an exterior gateway protocol used for inter-domain routing between autonomous systems.
MPLS
This document provides an introduction to MPLS (Multi-Protocol Label Switching). It discusses the drawbacks of traditional IP routing, including destination-based routing lookups needed on every hop. It then describes basic MPLS concepts, including forwarding packets based on labels rather than IP addresses. The MPLS architecture uses a control plane to exchange routing information and labels, and a data plane for simple label-based forwarding. MPLS can operate in frame mode, inserting labels between layers 2 and 3. Label switch routers perform label swapping in the data plane.
MPLS (Multi-Protocol Label Switching)
- Multi-Protocol Label Switching (MPLS) improves forwarding speed and enables new capabilities like traffic engineering and virtual private networks. It uses short fixed-length labels to represent IP packets and make forwarding decisions.
- MPLS was originally conceived as being independent of Layer 2 but has found success deploying IP networks across ATM backbones. Standards are being developed and it is seen as an important network development.
- MPLS encapsulates IP packets with labels which are then used instead of the IP header for forwarding decisions, allowing separation of the forwarding and control planes.
Network protocol
The document discusses several network protocols used at different layers of the OSI model. It introduces NetBIOS/NetBEUI which provides name registration and connection-oriented/connectionless communication over LANs. TCP/IP is described as a layered protocol suite used widely on the internet, with IP, TCP, UDP operating at the network and transport layers. ARP and RARP are discussed as protocols that resolve logical to physical addresses. ICMP and IGMP are control protocols that provide error reporting and multicast group management. IPX/SPX is presented as an alternative to TCP/IP used in Novell networks. HDLC and SDLC are synchronous data link protocols used for communication over WAN links.
Multiprotocol label switching (mpls) - Networkshop44
MPLS enables packets to be forwarded based on labels rather than IP addresses. PE routers add labels to incoming packets and remove labels from outgoing packets. P routers swap or pop labels to forward packets. MPLS with L3 VPN allows private networks in different locations to communicate securely over a shared infrastructure by associating routes with virtual routing instances (VRFs) and advertising them using BGP. An example configuration shows VRF and BGP configuration, along with commands to view MPLS label bindings and packet forwarding information.
Mpls 1
MPLS is a forwarding mechanism that uses labels instead of IP addresses to forward packets. It allows routers to forward based on simple label lookups rather than complex routing lookups. MPLS has benefits like supporting multiple applications and decreasing forwarding overhead on core routers. It has a control plane that exchanges routing information and labels, and a data plane that forwards packets based on labels. Label Switch Routers implement MPLS forwarding by exchanging labels and forwarding packets based on those labels.
SD-WAN Catalyst a brief Presentation of solution
The document discusses Cisco's SD-WAN solution which provides flexibility, transport independence, and a unified management plane. It describes the SD-WAN architecture including the management plane with vManage, control plane with vSmart controllers, and data plane with physical/virtual WAN edge routers. The SD-WAN solution uses an overlay protocol and transport locators to establish encrypted tunnels between sites and distribute routing policies and services across the WAN.
Presentation on MPLS (Multi Protocol Label Switching)
MPLS is a routing technique that establishes an end-to-end path between a source and destination using labels. It builds a connection-oriented service on IP networks by using labels to set up the path in a hop-by-hop manner. MPLS makes IP routing faster by reducing the number of routing lookups and eliminates the need to run routing protocols on all devices. It is protocol independent and maps IP addresses to fixed length labels to forward traffic.
Segment Routing Technology Deep Dive and Advanced Use Cases
The document provides an overview of Segment Routing technologies including SRv6. It begins with a recap of Segment Routing concepts and how it simplifies network operations. It then covers SRv6 which extends Segment Routing to IPv6 networks to take advantage of growing IPv6 adoption. The document discusses how SRv6 can further simplify networks and support new services and traffic patterns from 5G, IoT, and container-based microservices.
MPLS_cisco.ppt
This document provides an overview of MPLS (Multi-Protocol Label Switching) including:
- MPLS uses labels assigned at the edge of the network to forward packets through the core instead of IP addresses.
- Label Distribution Protocol (LDP) establishes label mappings between adjacent routers to distribute labels.
- Labels are assigned to Forwarding Equivalence Classes (FECs) which define how packets are mapped to Label Switched Paths (LSPs).
CCNP Route
The document provides an overview of basic network and routing concepts. It describes enterprise network infrastructure with campus and edge components. It discusses the roles of dynamic routing protocols in exchanging network reachability information. Interior gateway protocols are used within an organization while exterior protocols exchange routes between autonomous systems. Common routing protocols include distance vector, link-state, and protocols can be divided into interior and exterior groups. The document also covers concepts like convergence, route summarization, scalability, network technologies, and routing protocol configurations over different networks.
MPLS Lecture1(H)-102020.pdf
MPLS provides benefits such as supporting multiple applications, decreasing forwarding overhead on core routers, and supporting forwarding of non-IP protocols. MPLS establishes label switched paths using label distribution protocols like LDP to propagate labels between routers so that packets can be forwarded based on a label lookup rather than a routing table lookup at every hop. During convergence after a link failure, routing protocols first reconverge while MPLS convergence involves repopulating forwarding information based on stored label mappings.
Evolution Network
The document discusses Colt's network evolution towards next generation technologies. It describes moving from separate IP and Ethernet networks running different MPLS protocols to a single converged network using Segment Routing as the unified MPLS control plane. This provides simplified design and operations as well as improved scalability, resiliency and service flexibility. Ethernet services are also evolving from per-pseudowire implementations to EVPN using BGP for unified control and faster convergence. Virtualization of network functions like route reflectors is another focus. Key takeaways include a simplified architecture delivering faster service and lower costs.
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L3 and Multicasting PPT by NETWORKERS HOME
- 1. L3 Routing & Multicasting
- 2. Typical Enterprise Network Design
- 3. Layer 3 Feature by place in Network
- 4. Layer 3 Access Consideration • Advantages Lower L2 table utilization Smaller L2 domain eliminate STP • Drawbacks More L3 configuration points VM mobility constrained to a smaller L2 domain • Use OSPF stub area, EIGRP stub or static default routes • Fabric Extender technology enables larger L2 domains without adding STP hops
- 5. Layer 3 Aggregation Considerations
- 6. Nexus 7000 Layer 3 and MPLS Support
- 7. Comparison of I/O Module
- 8. Licence • Enterprise Services License - all routing protocols except RIP • MPLS License – MPLS features • XL License – higher FIB table sizes (optional) • Base - all other Layer 3 features (SVIs, Layer 3 ports, FHRP, IGMP etc)
- 9. Nexus 5500 L3 Support
- 10. 5500 L3 Licence
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- 13. NX-OS and Nexus 7000 Unicast Routing Architecture
- 14. NX-OS Unicast Routing Protocols Platform Support
- 15. NX-OS Unicast Routing Protocols Configuration Highlights
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- 21. EIGRP
- 22. BGP • Full MP-BGP support • BGP version 4 (RFC 4271) • Multi-Protocol Extensions (RFC 2858) • Integrated implementation for IPv4 and IPv6 • Route Reflector support for all Afs • BGP Dynamic Capability (draft-ietf-idr- dynamic-cap-14) • 4 byte ASN support and interoperability (RFC 4893)
- 23. BGP