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# Monitoring Layer 2 NLRI for VPLS Instances

Purpose

Display layer 2 NLRI for all VPLS instances in the L2VPN address family, for a particular VPLS instance in the L2VPN address family, or for a particular VPLS instance in the VPLS address family.

The l2vpn vpls keywords display layer 2 NLRI for a particular VPLS instance in the VPLS address family.

The l2vpn all keywords display layer 2 NLRI for all VPLS instances in the L2VPN address family. The output for this version of the command also includes information about any VPWS instances configured in the L2VPN address family.

To display layer 2 NLRI for the route that matches a specified prefix (site ID and block offset) in the L2VPN address family or in the VPLS address family, use the site-id and block-offset keywords.

Action

To display information for all VPLS instances (and all VPWS instances) in the L2VPN address family:

    host1#show ip bgp l2vpn all
    Local BGP identifier 1.1.1.1, local AS 100
      4 routes (264 bytes)
      4 destinations (288 bytes) of which 4 have a route
      0 routes selected for route tables installation
      0 unicast/multicast routes selected for route table installation
      0 unicast/multicast tunnel-usable routes selected for route table installation
      0 tunnel-only routes selected for tunnel-route table installation
      4 path attribute entries (608 bytes)
      Local-RIB version 11. FIB version 11.
    Status codes: > best, * invalid, s suppressed, d dampened, r rejected,
                  a auto-summarized
    Prefix                       Peer            Next-hop       MED LocPrf Weight Origin
    > 1:1                        0.0.0.0         self                           0 IGP
    > 1:1                        0.0.0.0         self                           0 IGP
    > 2:1                        2.2.2.2         2.2.2.2               100      0 IGP
    > 2:1                        2.2.2.2         2.2.2.2               100      0 IGP

To display summary information for the L2VPN address family:

    host1#show ip bgp l2vpn all summary
    Display summary information for the l2vpn address-family
    Local router ID 1.1.1.1, local AS 100
      Administrative state is Start
      BGP Operational state is Up
      Shutdown in overload state is disabled
      Default local preference is 100
      IGP synchronization is enabled
      Default originate is disabled
      Always compare MED is disabled
      Compare MED within confederation is disabled
      Advertise inactive routes is disabled
      Advertise best external route to internal peers is disabled
      Enforce first AS is disabled
      Missing MED as worst is disabled
      Route flap dampening is disabled
      Log neighbor changes is disabled
      Fast External Fallover is disabled
      No maximum received AS-path length
      BGP administrative distances are 20 (ext), 200 (int), and 200 (local)
      Client-to-client reflection is enabled
      Cluster ID is 1.1.1.1
      Route-target filter is enabled
      Default IPv4-unicast is enabled
      Check next-hops of vpn routes is disabled
      Redistribution of iBGP routes is disabled
      Graceful restart is globally disabled
      Global graceful-restart restart time is 120 seconds
      Global graceful-restart stale paths time is 360 seconds
      Graceful-restart path selection defer time is 360 seconds
      Graceful-restart is not ready to switch to the standby SRP
      The last restart was not graceful
      Local-RIB version 11. FIB version 11.
                                                    Messages  Messages  Prefixes
    Neighbor           AS State       Up/down time      Sent  Received  Received
    2.2.2.2           100 Established     00:30:35        65        65         2

To display information for the route that matches the specified prefix (2:1) for a VPLS instance named customer1 in the VPLS address family:

    host1#show ip bgp l2vpn vpls customer1 site-id 2 block-offset 1

    BGP route information for prefix 2:1
      Received route learned from internal peer 2.2.2.2 (best route)
        Leaked route
        Route placed in IP forwarding table
        Best to advertise to external peers
        Address Family Identifier (AFI) is layer2
        Subsequent Address Family Identifier (SAFI) is unicast
        Route Distinguisher (RD) is 100:11
        Original Route Distinguisher (RD) is 100:21
        MPLS in-label is none
        MPLS in-label block size is 0
        MPLS out-label is 46
        MPLS out-label block size is 20
        Next hop IP address is 2.2.2.2 (metric 3)
        Multi-exit discriminator is not present
        Local preference is 100
        Weight is 0
        Origin is IGP
        AS path is empty
        Extended communities RT:100:1 Layer 2:19:00:0

To display only certain information for all VPLS instances (and all VPWS instances) in the L2VPN address family, including the status of the route:

    host1:pe1#show ip bgp l2vpn all fields best rd peer next-hop loc-pref extended-communities next-hop-cost

      Prefix      Rd        Peer       Next-hop     Next-hop-cost LocPrf Extended-communities
    > 1:1         100:11    0.0.0.0    self         0                200 RT:100:1 Layer2:vpls:mtu=0
    >m1:1         100:22    10.2.2.2   10.2.2.2     3                100 RT:100:1 Layer2:vpls:mtu=0
    > 2:1         100:33    10.3.3.3   10.3.3.3     3                200 RT:100:1 Layer2:vpls:mtu=0
    >m2:1         100:44    10.4.4.4   10.4.4.4     3                  0 RT:100:1 Layer2:vpls:down,:mtu=0
    > 3:1         100:55    10.5.5.5   10.5.5.5     3                100 RT:100:1 Layer2:vpls:mtu=0

Meaning

Table 94 lists the show ip bgp l2vpn command output fields.

Table 94: show ip bgp l2vpn Output Fields

Field Name | Field Description
--- | ---
Local BGP identifier | IP address of the local VE router
local AS | Autonomous system number
Local-RIB version | Version number of the local routing information base
FIB version | Version number of the forwarding information base
Status codes | Status codes for the route, listed before the Prefix: >—best route *—invalid route s—suppressed route d—dampened route r—rejected route a—auto-summarized route m—multihomed backup route; not used to trigger pseudowire
Prefix | Route prefix in the format siteID:blockOffset
Peer | IP address of the peer from which the route was learned
Next-hop (or Next hop IP address) | IP address of the next router that is used when a packet is forwarded to the destination network
MED | Multiexit discriminator for the route
LocPrf | Local preference for the route
Weight | Weight of the route
Origin | Origin of the route
AS path | AS path through which this route has been advertised
Extended communities | Description of the extended communities associated with this route. Includes route target, community type, encapsulation, control word and sequencing use, L2VPN link MTU, layer 2 D-bit (Site-is-Down) setting.

#### Related Topics

- show ip bgp l2vpn
- show ip bgp l2vpn vpls

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