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 2:19:00:0To 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 127 lists the show ip bgp l2vpn command output fields.
Table 127: 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
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