Monitoring Layer2 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 128 lists the show ip bgp l2vpn command output fields.
Table 128: 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:
|
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 Documentation
- show ip bgp l2vpn
- show ip bgp l2vpn vpls