Document Outline

• Contents
• In this chapter
• Audience
• Supported hardware and software
  • Supported software
• Document conventions
  • Text formatting
  • Notes, cautions, and danger notices
• Notice to the reader
• Related publications
• Getting technical help or reporting errors
• Configuring MPLS Traffic Engineering
  • Overview
  • IETF RFC and Internet draft support
    • MPLS
    • OSPF
    • IS-IS
  • How MPLS works
    • How packets are forwarded through an MPLS domain
  • Using MPLS in traffic engineering
    • CSPF calculates a traffic-engineered path
  • OSPF-TE Link State Advertisements for MPLS interfaces
  • IS-IS Link State Protocol data units with TE extensions for MPLS interfaces
  • Traffic engineering database
    • LSP attributes and requirements used for traffic engineering
    • How CSPF calculates a traffic-engineered path
    • How RSVP establishes a signaled LSP
  • MPLS Point-to-Multipoint Traffic Engineering
  • RSVP soft preemption
    • Configuring RSVP soft preemption
    • Detailed command information
    • Display output
    • Scalability
    • Syslog messages
  • Auto-bandwidth for RSVP LSPs
    • Configuring auto-bandwidth feature at the global level
    • Configuring per-LSP adjustment interval
    • Configurable table-based absolute adjustment-threshold
    • Configuring per-LSP range of bandwidth values
    • Underflow-limit
    • Configuring overflow limit to enable premature adjustment
    • Configuring the monitoring mode
    • Manually triggered bandwidth allocation adjustments
    • Clearing auto-bandwidth counters
    • Sample-history
    • Displaying auto-bandwidth configurations
  • Commands
  • MPLS fast reroute using one-to-one backup
  • MPLS Fast Reroute using facility backup over a bypass LSP
    • Facility backup over an adaptive bypass LSP
  • Adaptive Fast Reroute (FRR) and Global Revertiveness
    • Configuring FRR on an LSP to be adaptive
    • Global Revertiveness
    • Displaying global revertiveness information
  • MPLS CSPF fate-sharing group
    • Configuration considerations when using CSPF fate-sharing group information
    • Configuring a MPLS CSPF fate-sharing group
    • Deleting CSPF groups
  • MPLS traffic engineering flooding reduction
    • Global configuration
    • Interface specific configuration
    • Configuring the periodic flooding timer
  • MPLS over virtual Ethernet interfaces
    • Configuration considerations before enabling MPLS on a VE interface
  • Configuring MPLS
    • Enabling MPLS
  • LSP accounting statistics for single-hop LSP routes
    • Global RSVP parameters
  • RSVP message authentication
  • RSVP reliable messaging
  • RSVP refresh reduction
  • RSVP IGP synchronization
  • RSVP IGP synchronization for Remote Links
    • Configuring MPLS on a VE interface
  • RSVP message authentication on an MPLS VE interface
  • Setting up signaled LSPs
    • Configuring signaled LSP parameters
  • FRR bypass LSPs
  • Link protection for FRR
  • Command Section
  • Configuring an adaptive LSP
  • Static transit LSP
    • Show Commands
  • Configuring MPLS Fast Reroute using one-to-one backup
    • Protecting MPLS LSPs through a bypass LSP
  • Configuring a bypass LSP to be adaptive
  • Dynamic Bypass LSPs
    • Configuration considerations
    • Creating a dynamic bypass LSP
    • Configuration steps
    • Configuring the dynamic bypass LSP
    • Network diagram
    • Globally enabling dynamic bypass
    • Enabling dynamic bypass per interface
    • Sample configurations
    • Supported scenarios
  • RSVP LSP with FRR
    • Specifications
  • Liberal bypass selection and liberal dynamic bypass
    • Backward compatibility
    • Limitations
    • Upgrade and downgrade considerations
  • Commands
  • IP Traceroute over MPLS
    • Configuration examples
    • Understanding traceroute label information
  • MPLS LDP-IGP synchronization
    • Configuring MPLS LDP-IGP synchronization
    • Configuring MPLS LDP-IGP synchronization globally
    • Enabling LDP sync on an interface
  • Displaying MPLS and RSVP information
    • Displaying information about MPLS-enabled interfaces
    • Displaying MPLS statistics
    • Displaying MPLS summary information
  • Displaying the Traffic Engineering database
    • Displaying a traffic engineering path to a destination
    • Displaying signaled LSP status information
    • Displaying path information
    • Displaying the MPLS routing table
    • Displaying the MPLS forwarding information
    • Displaying the P2MP hardware forwarding information
    • Displaying RSVP information
    • Displaying information about OSPF-TE LSAs
    • Displaying information about IS-IS LSPs with TE extensions
    • Displaying MPLS Fast Reroute information
    • Displaying MPLS configuration information
  • Transit LSP statistics
    • Displaying MPLS statistics
    • Clearing MPLS statistics
    • MPLS sample configurations
    • LSP with redundant paths
    • Example of MPLS Fast Reroute configuration
  • Commands
• Configuring Label Distribution Protocol (LDP)
  • LDP overview
  • Configuring LDP on an interface
  • Configuring an option of FEC type for auto-discovered VPLS peers
  • LDP Inbound-FEC filtering
    • Configuring LDP inbound FEC filtering
  • LDP outbound FEC filtering
    • Limitations and pre-requisites
    • Upgrade and downgrade considerations
    • Backward compatibility
    • Configuration steps
    • Configuration example
  • Commands
  • Label withdrawal delay
  • LDP ECMP for transit LSR
    • Changing the maximum number of LDP ECMP paths
    • MPLS OAM support for LDP ECMP
    • Display changes to commands for LDP ECMP
  • LDP ECMP LER
    • Overview
    • Configuration considerations
  • Commands
  • Setting the LDP Hello Interval and Hold Timeout values
    • Setting the LDP Hello interval values
    • Setting the LDP hold time sent to adjacent LSRs
    • Determining the LDP Hold Time on an MPLS interface
    • LDP message authentication
  • Resetting LDP neighbors
  • MPLS LDP-IGP synchronization
    • Configuring MPLS LDP-IGP Synchronization
    • Configuring MPLS LDP-IGP synchronization globally
    • Enabling LDP sync on an interface
    • LDP Graceful Restart (GR)
    • MPLS failover support for VPLS
    • LDP failover support for transit
    • Graceful restart procedure
    • Session down detection on GR helper
    • Graceful restart scenarios
    • Ingress LSR specific processing
    • Transit LSR specific processing
    • Graceful Restart helper-only mode
    • Configuring LDP graceful restart (GR)
    • LDP Session keepalive timeout configurations
  • Configurable LDP router ID overview
    • Background
    • Release NetIron R05.5.00 LDP LSR-ID requirements
    • Limitations
    • Upgrade and downgrade considerations
  • LDP over RSVP (for transit LSR only)
    • Enabling LDP over RSVP
    • Configuring a targeted peer address
    • Displaying targeted peer addresses
    • TTL propagation for LDP over RSVP packets
    • Enabling TTL propagation
    • Class of Service (CoS) treatment for LDP over RSVP
    • Setting the backup retry interval
  • RSVP-TE Hello
    • Vital Fractions for RSVP-TE Hello
    • Risk assessment
    • Configuration steps
    • Backward compatibility
  • Commands
  • Displaying LDP information
    • Displaying the LDP version
    • Displaying information about LDP-created LSPs
    • Displaying LDP tunnel LSP information
    • Displaying the contents of the LDP database
    • Displaying LDP session information
    • Displaying LDP neighbor connection information
    • Displaying information about LDP-enabled interfaces
    • Displaying information about specified LDP-enabled interface
    • Displaying the LDP peer information
    • Display considerations for LDP FEC information
    • Displaying LDP FEC information
    • Displaying information for a specified LDP FEC type
    • Displaying LDP FEC summary information
    • Displaying the LDP FEC VC information
    • Displaying information for a specified LDP FEC VC
    • Displaying the LDP packet statistics
    • Clearing the LDP packet statistics
  • Sample LDP configurations
    • Router R1
    • Router R2
    • Router R3
  • Sample LDP configuration with VLL
    • Router R1
    • Router R2
    • Router R3
  • MPLS over GRE tunnel
    • LDP LSP over GRE tunnel
    • LDP VPLS over a GRE tunnel
    • LDP over a GRE tunnel within an encrypted network
    • Configuration example
    • Deleting a GRE tunnel configuration
    • Viewing MPLS over GRE information and statistics
  • Commands
• Configuring MPLS Virtual Private LAN Services
  • Overview
  • How VPLS works
  • Configuring VPLS instances
    • Limitations
    • Creating a VPLS instance
    • Specifying VPLS peers
    • Setting the VPLS VC mode
    • QoS for VPLS traffic
    • Specifying an LSP to reach a peer within a VPLS
  • LSP load balancing for VPLS traffic
  • VPLS LSP load balancing
    • Limitations and prerequisites
    • Existing feature affected by this feature
    • Assumptions and dependencies
  • Commands
    • Specifying the endpoint of a VPLS instance
    • Flooding Layer 2 BPDUs in VPLS
    • Specifying the VPLS VC type
    • Configuring VPLS tagged mode
    • VPLS CPU protection
    • VPLS Broadcast, multicast, and unknown unicast packet limiting
  • Layer 2 control traffic behavior on VPLS endpoints
    • 802.1x Protocol packets on a VPLS endpoint
    • Cisco Discovery Protocol packets
    • Foundry Discovery Protocol packets
    • Configuring VPLS endpoint over FDP/CDP enabled interface
    • Uni-directional Link Detection packets
  • Flooding Layer 2 BPDUs with a VPLS instance
    • Specifying a VPLS MTU
    • Configuring VPLS MTU enforcement
    • Configuring VPLS local switching
  • Enabling MPLS VPLS traps
  • Disabling Syslog messages for MPLS VPLS
  • VPLS extended counters
  • Displaying VPLS extended counters
  • Clearing VPLS extended counters
  • Local VPLS
    • Example Local VPLS configuration
    • CoS behavior for Local VPLS
  • Displaying VPLS information
    • Display considerations for VPLS information
    • Displaying VPLS summary information
    • Displaying information about VPLS instances
    • Displaying detailed information about VPLS instances
    • Displaying information about a specified VPLS ID or VPLS name
    • Displaying VPLS CPU protection configuration status
    • Displaying information about VPLS instances that are not operational
    • Displaying the contents of the VPLS MAC database
    • Displaying VPLS traffic statistics
  • Clearing VPLS traffic statistics
  • VPLS LDP
    • Displaying the VPLS peer FSM state with LDP support
    • VC type mismatched
    • MTU mismatched
    • No remote VC label
    • LDP session down
    • No local label resource
  • MPLS LDP show commands
    • Using the show mpls ldp vc x command
  • VPLS MAC age timer configuration overview
    • Issues with timers
    • Solution
    • The MAC age timer aging operation
    • Backward compatibility
    • Upgrade and downgrade considerations
    • Scaling support
  • Commands
• Configuring MPLS Virtual Leased Line
  • Overview
  • How MPLS VLL works
    • MPLS VLL packet encoding
    • Trunk load balancing of VLL traffic
    • QoS for VLL traffic
    • CoS behavior for VLL tagged mode and VLL raw mode
  • Configuring MPLS VLLs
    • Creating a VLL
    • Specifying tagged or raw mode for a VLL
    • Specifying a VLL peer
    • Specifying a VLL endpoint
    • Configuring VLL endpoint over FDP/CDP enabled interface
    • Enabling VLL MTU enforcement (optional)
    • Specifying a VLL MTU
    • Generating traps for VLLs
  • Transparent forwarding of L2 and L3 protocols on a VLL for CES and CER
  • VLL extended counters
  • Displaying VLL extended counters
  • Clearing VLL extended counters
  • MPLS VLL behavior with other features
    • sFlow
    • IFL CAM
    • Layer 2 ACLs
  • Displaying MPLS VLL information
    • Displaying information about MPLS VLLs
    • Displaying detailed information about MPLS VLLs
    • Displaying LDP information
    • Displaying VLL endpoint statistics
  • Clearing Local VLL traffic statistics
  • Sample MPLS VLL configuration
    • Router R1
    • Router R2
    • Router R3
  • Local VLL
    • Local VLL configuration examples
    • Local VLL QoS
    • CoS behavior for Local VLL
    • Configuring Local VLL
  • Local VLL extended counters
  • Displaying Local VLL extended counters
  • Clearing Local VLL extended counters
  • Displaying Local VLL information
    • Displaying information about Local VLLs
    • Displaying Local VLL endpoint statistics
  • Enabling MPLS Local VLL traps
  • Disabling Syslog messages for MPLS VLL-local and VLL
  • VLL raw-pass-through overview
    • Packet handling behavior
    • Backward compatibility
    • Upgrade and downgrade considerations
    • Scaling support
  • Customer requirements
  • Commands
• IP over MPLS
  • BGP shortcuts
    • Key algorithms
    • Examples of next-hop MPLS
  • LDP route injection
    • Considerations when using LDP route injection
    • LDP route injection example
    • Displaying routes through LSP tunnels
  • Using traffic-engineered LSPs within an AS
    • IS-IS shortcuts over an LSP tunnel
    • Creating OSPF shortcuts over an LSP tunnel
  • BGP MPLS metric follow IGP
    • Feature information
    • Limitation
    • Configuring BGP next-hop IGP cost
    • Displaying show command
  • IS-IS shortcuts
    • Overview
    • Determining the cost of an IS-IS shortcut
    • Configuration notes
    • Configuration tasks
    • Example configurations
    • Clearing IS-IS shortcuts
    • Ignore LSP metric
    • Show command support
    • ECMP forwarding for IP over MPLS
  • QoS mapping between IP packets and MPLS
  • IP over MPLS statistics
    • Displaying packet counts per Forward Equivalence Class (FEC)
• Configuring BGP or MPLS VPNs
  • Overview
  • What is a BGP or MPLS VPN
    • IETF RFC and Internet Draft support
  • BGP or MPLS VPN components and what they do
  • BGP or MPLS VPN operation
    • Creating routes in a BGP or MPLS VPN
    • Routing a packet through a BGP or MPLS VPN
  • Configuring BGP VPNs on a PE
    • Defining a VRF routing instance
    • Assigning a Route Distinguisher to a VRF
    • Defining IPv4 or IPv6 address families of a VRF
    • Defining automatic route filtering
    • Assigning a VRF routing instance to an interface
    • Assigning a VRF routing instance to a LAG interface
    • Setting up cooperative route filtering
    • Importing and exporting route maps
    • Defining an extended community for use with a route map
    • Creating a VPNv4 route reflector
    • Configuring BGP VRF load sharing
    • ECMP forwarding for IP VPN
    • Configuring autonomous system number override
    • Configuring a PE to allow routes with its AS number
    • Setting up LSPs per VRF
    • Configuring OSPF sham links
    • Adding a static ARP entry for a VRF
    • Configuring IP TTL to MPLS TTL propagation in an IPVPN
    • Configuring a static route within the VRF context
    • Configuring an IP Static interface route across VRFs
    • Configuring a backup Virtual Router for VRF using VRRPE
    • Ping and Traceroute for layer-3 VPNs
    • Generating traps for VRFs
  • Displaying BGP or MPLS VPNv4 information
    • Displaying VPNv4 route information
    • Displaying VPNv4 route information for a specified IP address
    • Displaying VPNv4 attribute entries information
    • Displaying VPNv4 dampened paths information
    • Displaying VPNv4 filtered routes information
    • Displaying VPNv4 Flap statistics information
    • Displaying VPNv4 route distinguisher information
    • Displaying VPNv4 neighbor information
    • Displaying advertised routes for a specified VPNv4 neighbor
    • Displaying attribute entries for a specified VPNv4 neighbor
    • Displaying Flap statistics for a specified VPNv4 neighbor by IP address
    • Displaying received ORFs information for a specified VPNv4 neighbor
    • Displaying a specified neighbor VPNv4 routes
    • Displaying routes summary for a specified VPNv4 neighbor
    • Displaying summary route information
    • Displaying the VPNv4 route table
    • Displaying the best VPNv4 routes
    • Displaying best VPNv4 routes that are not in the IP route table
    • Displaying VPNv4 routes with unreachable destinations
    • Displaying information for a specific VPNv4 route
    • Displaying VPNv4 route details
    • Displaying BGP VPNv4 MPLS tag information
  • Displaying BGP or MPLS VRF information
    • Displaying VRF route information
    • Displaying VRF route information for a specified IP address
    • Displaying attribute entries information for a specified VRF
    • Displaying dampened paths information for a specified VRF
    • Displaying filtered routes information for a specified VRF
    • Displaying Flap statistics information for a specified VRF
    • Displaying BGP neighbor information for a specified VRF
    • Displaying advertised routes for a specified VRF neighbor
    • Displaying neighbor attribute entries for a specified VRF
    • Displaying flap statistics for a specified VRF neighbor by IP address
    • Displaying received ORF information for a specified VRF neighbor
    • Displaying received routes for a specified VRF neighbor
    • Displaying a specified VRF neighbor routes
    • Displaying VPNv4 routes summary for a specified VRF neighbor
    • Displaying summary route information for a specified VRF
    • Displaying a VRFs BGP4 route table
  • Displaying additional BGP or MPLS VPN information
    • Displaying VRF information
    • Displaying IP network information for a VRF
    • Displaying the IP route table for a specified VRF
    • Displaying ARP VRF information
    • Displaying OSPF information for a VRF
    • Displaying OSPF area information for a VRF
    • Displaying OSPF ABR and ASBR information for a VRF
    • Displaying general OSPF configuration information for a VRF
    • Displaying OSPF external link state information for a VRF
    • Displaying OSPF link state information for a VRF
    • Displaying OSPF interface information
    • Displaying OSPF neighbor information for a VRF
    • Displaying the routes that have been redistributed into OSPF
    • Displaying OSPF route information for a VRF
    • Displaying OSPF trap status for a VRF
    • Displaying OSPF virtual links for a VRF
    • Displaying OSPF virtual neighbor information for a VRF
    • Displaying IP extcommunity list information
    • Displaying the IP static route table for a VRF
    • Displaying the static ARP table for a VRF
    • Displaying TCP connections for a VRF
    • Displaying MPLS statistics for a VRF
    • Displaying IP route information for a VRF
    • Displaying RIP information for a VRF
  • BGP or MPLS VPN sample configurations
    • Basic configuration example for IBGP on the PEs
    • EBGP for route exchange
    • Static routes for route exchange
    • RIP for route exchange
    • OSPF for route exchange
    • Cooperative route filtering
    • Using an IP extcommunity variable with route map
    • Autonomous system number override
    • Setting an LSP for each VRF on a PE
    • OSPF sham links
  • IPv4 L3 VPN CAM optimization overview
  • Commands
    • Glossary
• Routing over VPLS
  • Overview
    • Configuring VE over VPLS
  • VRRP/VRRP-E support
    • Single homing topology
    • Dual homing topology
  • ACL Support for VE over VPLS
    • Configuration steps
    • Show commands
• Configuring BGP-Based Auto-Discovery for VPLS
  • Overview
    • Terms introduced in this chapter
  • How BGP-based auto-discovery for VPLS works
  • About the L2VPN VPLS address family
  • Feature limitations and configuration notes
  • Scalability
  • Configuring BGP-based auto-discovery for VPLS
    • Configuring a loopback interface
    • Configuring BGP4 to support VPLS auto-discovery
    • Configuring VPLS to support auto-discovery
    • Enabling VPLS auto-discovery
    • Configuring the L2VPN VPLS address family and activating the BGP4 peering session
  • Clearing the BGP L2VPN route table
    • Clearing the BGP L2VPN route table and resetting BGP
    • Clearing the BGP L2VPN route table without resetting the BGP session
  • Example configuration
  • Displaying VPLS auto-discovery information
    • Displaying information about BGP L2VPN VPLS routes
    • Displaying information about VPLS auto-discovery and load balancing
    • Displaying information about LDP
  • VPLS LSP Load Balancing
    • Glossary
  • Feature overview
    • Limitations and prerequisites
    • Existing features affected by this feature
    • Assumptions and dependencies
    • VPLS LSP load balancing configuration scenarios
  • Commands
• IPv6 Provider Edge Router over MPLS
  • 6PE over MPLS
    • 6PE over MPLS architecture
    • 6PE over MPLS operation
    • 6PE limitations
  • Configuring 6PE
    • Configuration example to deploy 6PE
  • Displaying 6PE information
    • Displaying the 6PE neighbors information
    • Displaying the error information for the 6PE neighbors
    • Displaying the routes summary of the 6PE neighbors
    • Displaying the 6PE summary
    • Displaying the 6PE packet count
  • Clearing 6PE information
  • 6PE behavioral differences on the Brocade devices
    • Output statistics for the show mpls statistics 6pe command
    • TTL propagation for 6PE packets
    • CoS behavior for 6PE packets
  • 6VPE Routing
    • 6VPE overview
    • 6VPE limitations
  • Configuring 6VPE
    • Configuration example to deploy 6VPE
  • Displaying 6VPE information
    • Displaying the 6VPE packet count