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Table of Contents
- About the Documentation
- Border Gateway Protocol
- Configuring BGP Routing
- Overview
- Platform Considerations
- References
- Features
- Before You Configure BGP
- Configuration Tasks
- Basic Configuration
- Configuring BGP Peer Groups
- Setting the Peer Type
- Assigning a Description
- Logging Neighbor State Changes
- Specifying a Source Address for a BGP Session
- Specifying Peers That Are Not Directly Connected
- Specifying a Single-Hop Connection for IBGP Peers
- Controlling the Number of Prefixes
- Removing Private AS Numbers from Updates
- Checking AS Path Length
- Enabling MD5 Authentication on a TCP Connection
- Setting the Maximum Size of Update Messages
- Setting Automatic Fallover
- Setting Timers
- Automatic Summarization of Routes
- Administrative Shutdown
- Configuring BGP for Overload Conditions
- Enabling Route Storage in Adj-RIBs-Out Tables
- Configuring the Address Family
- Enabling Lenient Behavior
- Configuring Promiscuous Peers and Dynamic Peering
- Configuring Passive Peers
- Advertising Routes
- Prefixes Originating in an AS
- Advertising Best Routes
- Redistributing Routes into BGP
- Redistributing Routes from BGP
- Configuring a Default Route
- Setting the Minimum Interval Between Routing Updates
- Aggregating Routes
- Advertising Inactive Routes
- Verifying an AS Path
- Advertising IPv4 Routes Between IPv6 BGP Peers
- Advertising Routes Conditionally
- Configuring BGP Routing Policy
- Selecting the Best Path
- Interactions Between BGP and IGPs
- Detecting Peer Reachability with BFD
- Managing a Large-Scale AS
- Configuring BGP Multicasting
- Using BGP Routes for Other Protocols
- Configuring BGP/MPLS VPNs
- Testing BGP Policies
- Monitoring BGP
- Setting a Baseline on All BGP Statistics
- Enabling Display of BGP Logs
- Setting the Default Output Fields While Displaying Summarized Status of BGP Neighbors
- Setting the Default BGP Routing Table Output Fields
- Monitoring AS-Path Access Lists
- Monitoring the BGP Routing Table
- Monitoring Advertised BGP Routes
- Monitoring BGP Aggregate Addresses
- Monitoring BGP Routes with Nonnatural Network Masks
- Monitoring BGP Routes in a Community
- Monitoring BGP Community Routes in the Community List
- Monitoring Dampened BGP Routes
- Monitoring BGP Routes with Matching AS Paths and AS-Path Access Lists
- Monitoring BGP Flap Statistics
- Monitoring BGP Routes with Inconsistent AS Paths
- Monitoring BGP Neighbors
- Monitoring Dampened BGP Routes of Specified Neighbors
- Monitoring BGP Paths of Neighbors
- Monitoring Prefix List Outbound Route Filters Received from the BGP Neighbor
- Monitoring Routes Originating from a BGP Neighbor Before Application of Inbound Policy
- Monitoring Routes Originating from a BGP Neighbor After Application of Inbound Policy
- Monitoring Networks in an Autonomous System
- Monitoring BGP Next Hops
- Monitoring BGP Paths
- Monitoring BGP Peer Groups
- Monitoring BGP Routes with Matching AS-Paths and Regular Expressions for Single Regular Expressions
- Monitoring BGP Routes with Matching AS-Paths and Regular Expressions for Multiple Regular Expressions
- Monitoring the Status of All BGP Neighbors
- Monitoring All Routes in a BGP Community List
- Disabling Display of BGP Logs
- Multiprotocol Layer Switching
- MPLS Overview
- MPLS Overview
- Terminology for MPLS Topics
- MPLS Terms and Acronyms
- MPLS Features
- MPLS Platform Considerations
- MPLS References
- MPLS Label Switching and Packet Forwarding Overview
- TTL Processing in the Platform Label Space Overview
- MPLS Label Distribution Methodology
- IP Data Packet Mapping onto MPLS LSPs Overview
- Statistics for IP Packets Moving On or Off MPLS LSPs
- MPLS Forwarding and Next-Hop Tables Overview
- MPLS Packet Spoof Checking Overview
- IP and IPv6 Tunnel Routing Tables and MPLS Tunnels Overview
- Explicit Routing for MPLS Overview
- MPLS Interfaces and Interface Stacking Overview
- MPLS Label Distribution Protocols Overview
- ECMP Labels for MPLS Overview
- MPLS Connectivity Verification and Troubleshooting Methods
- Point-to-Multipoint LSPs Connectivity Verification at Egress Nodes Overview
- Ping Extensions for Point-to-Multipoint LSPs Connectivity Verification at Egress Nodes
- TLVs and Sub-TLVs Supported for Point-to-Multipoint LSPs Connectivity Verification at Egress Nodes
- LDP Discovery Mechanisms
- MPLS Traffic Engineering Overview
- Tracking Resources for MPLS Traffic Engineering Overview
- Topology-Driven LSPs Overview
- LDP Graceful Restart Overview
- LDP-IGP Synchronization Overview
- Use of RSVP-TE Hello Messages to Determine Peer Reachability
- RSVP-TE Graceful Restart Overview
- RSVP-TE Hellos Based on Node IDs Overview
- BFD Protocol and RSVP-TE Overview
- Tunneling Model for Differentiated Services Overview
- EXP Bits for Differentiated Services Overview
- Point-to-Multipoint LSPs Overview
- Configuring MPLS
- Basic MPLS Configuration Tasks
- MPLS Global Configuration Tasks
- LDP and RSVP-TE Interface Profile Configuration Tasks
- MPLS Interface Configuration Tasks
- MPLS Tunnel Configuration Tasks
- MPLS Tunnel Profile Configuration Tasks
- Configuring Explicit Routing for MPLS
- Additional LDP Configuration Tasks
- Configuring LDP FEC Deaggregation
- Configuring LDP Graceful Restart
- Configuring LDP Autoconfiguration
- Configuring LDP-IGP Synchronization
- Configuring LDP MD5 Authentication
- Controlling LDP Label Distribution
- Additional RSVP-TE Configuration Tasks
- Configuring RSVP MD5 Authentication
- Configuring RSVP-TE Fast Rerouting with RSVP-TE Bypass Tunnels
- Configuring RSVP-TE Hello Messages to Determine Peer Reachability
- Configuring RSVP-TE Graceful Restart
- Configuring RSVP-TE Hellos Based on Node IDs
- Configuring the BFD Protocol for RSVP-TE
- Configuring IGPs and MPLS
- Configuring MPLS and Differentiated Services
- Configuring the Tunneling Model for Differentiated Services
- Configuring EXP Bits for Differentiated Services
- Example Differentiated Services Application and Configuration
- Classifying Traffic for Differentiated Services
- Example Traffic Class Configuration for Differentiated Services
- Configuring Point-to-Multipoint LSPs
- Monitoring MPLS
- Setting the Baseline for MPLS Statistics
- Setting a Baseline for MPLS Major Interface Statistics
- Enabling and Setting a Baseline for MPLS Forwarding Table Statistics
- Enabling and Setting a Baseline for MPLS Next-Hop Table Statistics
- Setting a Baseline for MPLS Tunnel Statistics
- Enabling Statistics Collection for Policies Attached to MPLS Tunnels
- Clearing and Re-Creating Dynamic Interfaces from MPLS Major Interfaces
- Clearing and Refreshing IPv4 Dynamic Routes in the Tunnel Routing Table
- Clearing and Refreshing IPv6 Dynamic Routes in the Tunnel Routing Table
- Tracing Paths Through the MPLS User Plane
- Monitoring ATM VCs and VPI/VCI Ranges Used for MPLS
- Monitoring Global Call Admission Control Configuration
- Monitoring Interfaces Configured with Traffic Engineering Bandwidth Accounting
- Monitoring Virtual Router Configuration
- Monitoring IP and IPv6 Tunnel Routing Tables
- Monitoring LDP
- Monitoring MPLS Label Bindings
- Monitoring LDP Graceful Restart
- Monitoring Interfaces That are Synchronizing with LDP
- Monitoring LDP Interfaces
- Monitoring LDP Neighbors
- Monitoring LDP Profiles
- Monitoring LDP Statistics
- Monitoring LDP Targeted Hello Receive and Send Lists
- Monitoring MPLS Status and Configuration
- Monitoring MPLS Explicit Paths
- Monitoring RSVP-TE Status and Configuration
- Monitoring the RSVP-TE Bypass Tunnels
- Monitoring MPLS Labels Used for Forwarding
- Monitoring MPLS Interfaces
- Monitoring MPLS Minor Interfaces
- Monitoring MPLS Next Hops
- Monitoring the Configured Mapping between PHB IDs and Traffic Class/Color Combinations
- Monitoring RSVP-TE Profiles and MPLS Tunnel Profiles
- Monitoring RSVP Path State Control Blocks, Reservation State Control Blocks, or Sessions
- Monitoring RSVP MD5 Authentication
- Monitoring RSVP-TE Interfaces Where BFD is Enabled
- Monitoring RSVP-TE Interface Counters
- Monitoring RSVP-TE Graceful Restart
- Monitoring RSVP-TE Hello Adjacency Instances
- Monitoring Status and Configuration for MPLS Tunnels
- Verifying and Troubleshooting MPLS Connectivity
- Sending an MPLS Echo Request Packet to an IP or IPv6 Address
- Tracing the Path of an MPLS Echo Request Packet to an IP or IPv6 Address
- Sending an MPLS Echo Request Packet to a Martini Circuit
- Tracing the Path of an MPLS Echo Request Packet to a Martini Circuit
- Sending an MPLS Echo Request Packet to an L3VPN IP or IPv6 Prefix
- Tracing the Path of an MPLS Echo Request Packet to an L3VPN IP or IPv6 Prefix
- Sending an MPLS Echo Request Packet to an RSVP-TE Tunnel
- Tracing the Path of an MPLS Echo Request Packet to an RSVP-TE Tunnel
- Sending an MPLS Echo Request Packet to a VPLS Instance
- Tracing the Path of an MPLS Echo Request Packet to a VPLS Instance
- Packet Flow Examples for Verifying MPLS Connectivity
- Troubleshooting MTU Problems in Point-to-Point LSPs
- Troubleshooting MTU Problems in a Point-to-Point MPLS LSP Associated with an IP or IPv6 Address
- Troubleshooting MTU Problems in a Point-to-Point MPLS LSP Associated with an L3VPN IP or IPv6 Prefix
- Troubleshooting MTU Problems in a Point-to-Point MPLS LSP Associated with a Martini Circuit
- Troubleshooting MTU Problems in a Point-to-Point MPLS LSP Associated with an RSVP-TE Tunnel
- Troubleshooting MTU Problems in a Point-to-Point MPLS LSP Associated with a VPLS Instance
- Configuring BGP-MPLS Applications
- MBGP Overview
- Understanding MBGP Address Families
- Equal-Cost Multipath Support Overview
- Example: Simple ECMP Scenario for BGP/MPLS VPN
- BGP/MPLS VPN Components Overview
- Understanding VPN-IPv4 Addresses
- Understanding Route Targets
- Example: Distribution of Routes and Labels with BGP
- BGP/MPLS VPN Platform Considerations
- MBGP References
- Packet Transport Across an IP Backbone with MPLS Overview
- Example: Transporting Packets Across an IP Backbone with MPLS
- Example: Data Transport Process
- IPv6 VPN Overview
- Intra-AS IPv6 VPNs
- IPv4 VPN Services Across Multiple Autonomous Systems
- Understanding IPv6 VPN Services Across Multiple Autonomous Systems
- VPN Topologies
- Route-Target Filtering for MBGP VPNs
- Understanding Route-Target Filtering for MBGP VPNs Overview
- Understanding Route-Target Membership Information Exchange
- Understanding RT-MEM-NLRI Routing Updates Exchange
- Understanding the Conditions for Advertising RT-MEM-NLRI Routes
- Default Route Advertisement Overview
- Understanding Route Selection When Route-Target Filtering Is Enabled
- Configuring Route-Target Filtering
- Configuring BGP VPN Services
- Creating a VRF and Assigning a Route Distinguisher
- Definition of Route Targets for VRFs Overview
- Defining Route Targets for VRFs
- Example: Full-Mesh VPNs
- Example: Hub-and-Spoke VPNs
- Understanding Route Distribution for a VRF using Maps
- Characteristics of Import and Global Import Maps
- Characteristics of Export and Global Export Maps
- Assigning a Route Map to the VRF
- Types of Maps Overview
- Exporting IPv6 VPN Routes Globally into the Global BGP IPv6 RIB
- Assigning an Interface to a VRF
- Configuring Secondary Routing Table Lookup
- Example: Adding Static Routes to a VRF
- Configuring the IGP in the VRF Context
- Configuring the IGP Outside the VRF Context
- Disablement of Automatic Route-Target Filtering
- Understanding Labels Creation per FEC
- Creating Labels per FEC
- Example: Enabling BGP ECMP for BGP/MPLS VPN IBGP
- Example: Enabling BGP ECMP for BGP/MPLS VPN EBGP
- VPN Address Exchange Overview
- Example: Configuring PE-to-CE BGP Sessions
- Route Advertisements to Customers Overview
- Example: Disabling the Default Address Family
- Example: Using a Single AS Number for All CE Sites
- Example: Preventing Routing Loops
- Prefix Advertisement with Duplicate AS Numbers Overview
- Route Importation Control Overview
- VRF–to–VR Peering Overview
- Enabling VRF-to-VR Peering
- Fast Reconvergence in VPN Networks
- Understanding BGP Routing Rules
- Understanding VPN Communication
- Understanding Internet Access and VPNs
- Traffic Flow from the VPN to the Internet Overview
- Example: Configuring a Default Route to a Shared Interface
- Example: Configuring a Fallback Global Option
- Example: Configuring a Global Import Map for Specific Routes
- Creation of a BGP Session Between the CE Router and the Parent VR Overview
- Example: Creating a BGP Session Between the CE Router and the Parent VR
- Traffic Flow from the Internet to the VPN Overview
- Example: Adding Static Routes to a Shared IP Interface
- Example: Exporting VPN Routes to Global BGP RIB Using Global Export Maps
- IPv4 VPNs
- IPv6 VPNs
- OSPF and BGP/MPLS VPNs
- Understanding Usage of BGP/MPLS VPNs to Connect OSPF Domains
- Preservation of OSPF Routing Information Across the MPLS/VPN Backbone Overview
- Distribution of OSPF Routes from PE Router to CE Router Overview
- Prevention of Routing Loops Overview
- Understanding Remote Neighbors Usage to Configure OSPF Links
- Understanding OSPF Sham Links
- Configuring PE Router for OSPF
- Monitoring BGP/MPLS VPNs
- Layer 2 Services Over MPLS
- Layer 2 Services over MPLS Overview
- Layer 2 Services over MPLS Overview
- Layer 2 Services over MPLS Platform Considerations
- Layer 2 Services over MPLS References
- Layer 2 Services over MPLS Implementation
- Local Cross-Connects Between Layer 2 Interfaces Using MPLS Overview
- MPLS Shim Interfaces for Layer 2 Services over MPLS Overview
- Multiple Layer 2 Services over MPLS Overview
- ATM Layer 2 Services over MPLS Overview
- HDLC Layer 2 Services over MPLS Overview
- CE-Side MPLS L2VPNs over LAG Overview
- Ethernet Raw Mode Encapsulation for Martini Layer 2 Transport Overview
- S-VLAN Subinterface with an Untagged C-VLAN ID Overview
- Multiple ATM Virtual Circuits over a Single Pseudowire Overview
- Configuring Layer 2 Services over MPLS
- Before You Configure Layer 2 Services over MPLS
- Configuring Frame Relay Layer 2 Services
- Configuring Interoperation with Legacy Frame Relay Layer 2 Services
- Configuring Ethernet/VLAN Layer 2 Services
- Configuring S-VLAN Tunnels for Layer 2 Services
- Configuring Local Cross-Connects Between Ethernet/VLAN Interfaces
- Configuring Local ATM Cross-Connects with AAL5 Encapsulation
- Configuring an MPLS Pseudowire with VCC Cell Relay Encapsulation
- Configuring HDLC Layer 2 Services
- CE-Side Load Balancing for Martini Layer 2 Transport
- Understanding CE Load Balancing for Martini Layer 2 Transport
- Configuration of Many Shim Interfaces with the Same Peer, VC Type, and VC ID
- Example: Configuring Many Shim Interfaces with the Same Peer, VC Type, and VC ID
- Load-Balancing Group Configuration
- MPLS Interfaces and Labels
- Configuring Load-Balancing Groups
- Example: Configuring Frame Relay over MPLS
- Example: Configuring MPLS L2VPN Tunnel over VLAN over LAG
- Example: Configuring MPLS L2VPN Tunnel over LAG
- Examples: Ethernet Raw Mode Encapsulation for Martini Layer 2 Transport
- Examples: Configuring S-VLAN Subinterface with an Untagged C-VLAN ID
- Example: Multiple ATM Virtual Circuits over a Single Pseudowire
- Monitoring Layer 2 Services over MPLS
- Setting Baselines for Layer 2 Services over MPLS Statistics
- Monitoring ATM Martini Cell Packing Timers for Layer 2 Services over MPLS
- Monitoring ATM Subinterfaces for Layer 2 Services over MPLS
- Monitoring ATM Cross-Connects for Layer 2 Services over MPLS
- Monitoring MPLS Forwarding for Layer 2 Services over MPLS
- Monitoring MPLS Layer 2 Interfaces for Layer 2 Services over MPLS
- Virtual Private LAN Service
- VPLS Overview
- VPLS Protocol Overview
- VPLS Components Overview
- VPLS and Transparent Bridging Overview
- Subscriber Policies for VPLS Network Interfaces Overview
- BGP Signaling for VPLS Overview
- LDP Signaling for VPLS Overview
- BGP Multihoming for VPLS Overview
- VPLS Supported Features
- VPLS Platform Considerations
- VPLS References
- Configuring VPLS
- Configuring VPLS with BGP Signaling on a PE Router
- Configuring VPLS Instances with BGP Signaling
- Configuring BGP Multihoming for VPLS
- Configuring Optional Attributes for VPLS Instances
- Configuring VPLS Network Interfaces
- Configuring the Loopback Interface and Router ID for VPLS
- Configuring MPLS LSPs for VPLS
- Configuring BGP Signaling for VPLS
- Example: Configuring VPLS with BGP Signaling
- Configuring VPLS with LDP Signaling on a PE Router
- Configuring VPLS Instances with LDP Signaling
- Configuring LDP Signaling for VPLS
- Configuring Routing in the Core Network for VPLS
- Example: Configuring VPLS LDP Signaling
- Monitoring VPLS
- Setting the Baseline for VPLS Statistics
- Clearing Dynamic MAC Addresses from the VPLS Forwarding Table
- Clearing All Dynamic MAC Addresses from the VPLS Forwarding Table
- Clearing a Specific Dynamic MAC Addresses from the VPLS Forwarding Table
- Clearing All Dynamic MAC Addresses for a Network Interface associated with a VPLS Instance
- Clearing All Dynamic MAC Addresses for the VPLS Virtual Core Interface associated with a VPLS Instance
- Clearing BGP Attributes for VPLS
- Monitoring VPLS Configuration and Statistics for a Specific VPLS Instance
- Monitoring VPLS Configuration and Statistics for All VPLS Instances
- Monitoring Configuration, Statistics, and Status for VPLS Network Interfaces
- Monitoring Configuration, Statistics, and Status for VPLS Core Interfaces
- Monitoring Configuration, Statistics, and Status for VPLS Ports
- Monitoring MAC Address Entries for a Specific VPLS Instance
- Monitoring Subscriber Policy Rules
- Monitoring Layer2 NLRI for VPLS Instances
- Monitoring BGP Next Hops for VPLS
- Monitoring LDP-Related Settings for VPLS
- Monitoring MPLS-Related Settings for VPLS
- Monitoring VPLS-Specific Settings
- Virtual Private Wire Service
- VPWS Overview
- Configuring VPWS
- Configuring VPWS on a PE Router
- Configuring a VPWS Instance
- Configuring BGP Multihoming for VPWS
- Types of Interfaces to Configure in the VPWS Instance
- Configuring Customer-Facing Interfaces in the VPWS Instance
- Local Cross-Connects for VPWS Overview
- Configuring a Local Cross-Connect for VPWS
- BGP Loopback Interface and Router ID Overview
- Configuring the Loopback Interface and Router ID for BGP for VPWS
- BGP Signaling for VPWS Overview
- Configuring BGP Signaling for VPWS
- MPLS LSPs for VPWS Overview
- Configuring MPLS LSPs for VPWS
- Example: Configuring VPWS on Local and Remote Routers
- Monitoring VPWS
- Index
