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MPLS Traffic Engineering

MPLS Traffic Engineering. Monitoring Basic MPLS TE on Cisco IOS. Outline. Overview Monitoring MPLS TE Tunnels Monitoring MPLS TE Summary. Monitoring MPLS TE Tunnels. router#. show ip rsvp interface. Confirms which interfaces have RSVP information configured. router#.

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MPLS Traffic Engineering

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  1. MPLS Traffic Engineering Monitoring Basic MPLS TE on Cisco IOS

  2. Outline • Overview • Monitoring MPLS TE Tunnels • Monitoring MPLS TE • Summary

  3. Monitoring MPLS TE Tunnels router# show ip rsvp interface • Confirms which interfaces have RSVP information configured router# show mpls traffic-eng tunnels tunnel_interface[brief] • Showssummary information about a tunnel router# show mpls traffic-eng tunnels[parameters] • Shows detailed information about a tunnel

  4. Monitoring MPLS TE Tunnels:show ip rsvp interface P72#show ip rsvp interface interface allocated i/f max flow max sub max Se0/0 0 128K 128K 0 Se0/0.111 0 128K 128K 0 Se0/0.112 0 128K 128K 0 Se0/0.272 0 128K 128K 0

  5. Monitoring MPLS TE Tunnels:show mpls traffic-eng tunnels brief PE71#show mpls traffic-eng tunnels brief Signaling Summary: LSP Tunnels Process: running RSVP Process: running Forwarding: enabled Periodic reoptimization: every 30 seconds, next in 11 seconds Periodic auto-bw collection: disabled TUNNEL NAME DESTINATION UP IF DOWN IF STATE/PROT PE71_t0 192.168.7.33 - Se0/0.11 up/up PE72_t0 192.168.7.17 Se0/0.11 - up/up Displayed 1 (of 1) heads, 0 (of 0) midpoints, 1 (of 1) tails

  6. Monitoring MPLS TE router# show mpls traffic-eng autoroute • Shows tunnels that are announced to IGP, including interface, destination, and bandwidth router# show ip cef network [mask] • Shows network entries in the Forwarding Information Base (FIB) to verify that IP traffic is forwarded through tunnel interface router# show ip cef vrf vrf-name network [mask] • Shows VRF network entries in the FIB to verify that MPLS VPN traffic is forwarded through tunnel interface

  7. Monitoring MPLS TE:show mpls traffic-eng autoroute PE71#show mpls traffic-eng autoroute MPLS TE autorouting enabled destination 0000.0000.0172.00 has 1 tunnels Tunnel0 (load balancing metric 20000000, nexthop 192.168.7.33)

  8. Monitoring MPLS TE:show ip cef network PE71#show ip cef 192.168.7.33 192.168.7.33/32, version 25, epoch 0 0 packets, 0 bytes tag information set, shared local tag: 30 fast tag rewrite with Tu0, point2point, tags imposed: {33} via 192.168.7.33, Tunnel0, 11 dependencies next hop 192.168.7.33, Tunnel0 valid adjacency tag rewrite with Tu0, point2point, tags imposed: {33}

  9. Monitoring MPLS TE:show ip cef vrf vrf-name network PE71#show ip cef vrf CustA 10.1.72.49 10.1.72.49/32, version 20, epoch 0 0 packets, 0 bytes tag information set local tag: VPN-route-head fast tag rewrite with Tu0, point2point, tags imposed: {33 34} via 192.168.7.33, 0 dependencies, recursive next hop 192.168.7.33, Tunnel0 via 192.168.7.33/32 valid adjacency tag rewrite with Tu0, point2point, tags imposed: {33 34}

  10. Summary • Use the following commands to monitor MPLS TE tunnels: • show ip rsvp interface • show mpls traffic-eng tunnels • Use the following commands to monitor MPLS TE: • show mpls traffic-eng autoroute • show ip cef network • show ip cef vrf vrf-name network

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