MPLS Traffic Engineering Notes

Command Reference




Router(config)#mpls traffic-eng tunnels

Configures TE support on router in the global configuration mode.



Router(config-if)#mpls traffic-eng tunnels

Configures MPLS TE support per interface.



Router(config-if)# ip rsvp bandwidth {reservable bandwidth 1-10000000 kbps} {maximum reservable bandwidth per flow 1-1000000 kbps}

Configures RSVP bandwidth on the interface-reserved bandwidth with the largest reservable bandwidth/flow.



Router(config)#interface tunnel {number}

Configures tunnel interface.



Router(config-if)#ip unnumbered loopback {number}

Configures the loopback interface IP address to be associated with the tunnel interface under tunnel interface configuration.



Router(config-if)#tunnel mode mpls traffic-eng

Configures the tunnel mode to be an MPLS traffic-engineered tunnel.



Router(config-if)#tunnel destination {IP address of remote loopback}

Configures the MPLS traffic-engineered tunnel's destination or end-point.



Router(config-if)#tunnel mpls traffic-eng path-option {priority} dynamic [bandwidth {override bandwidth config value} attributes {lsp attribute list name} lockdown]

Configures the LSP path setup to be done by IGP and CSPF (dynamic LSP tunnel creation). The tunnels can be configured with the associated priority and attributes.



Router(config)# ip explicit-path name {name} enable



or



Router(config)# ip explicit-path identifier {number} enable

Configures an explicit path to be associated with a TE tunnel.



Router(cfg-ip-expl-path)#next-address {ip-address}



Router(cfg-ip-expl-path)#exit

Configures the IP next-hop addresses for the explicit MPLS traffic engineered tunnel.



Router(config-if)#tunnel mpls traffic-eng priority {setup priority-value} {hold-priority value}

Defines the priority of the tunnel (used in load balancing).



Router(config-if)#tunnel mpls traffic-eng autoroute announce

Configures tunnel interface to be announced into IGP routing table (configured under tunnel interface configuration).



Router(config-router)#mpls traffic-eng area number

Enables OSPF for TE (under router OSPF configuration).



Router(config-router)#mpls traffic-eng router-id interface number

Configures the router ID for the TE process under OSPF or IS-IS.



Router(config-router)#mpls traffic-eng level [1 2]

Configures IS-IS Level1/Level2 domains for TE.



Router(config-router)#metric-style wide

Configures IS-IS to accept and use enhanced TLVs (wide metrics).



Router(config-if)# tunnel mpls traffic-eng fast-reroute

Enables the MPLS tunnel for FRR protection.



Router(config-if)# mpls traffic-eng backup-path tunnel {interface-number}

Configures the backup tunnel to be used during interface failure.