Displaying VPNv4/VPNv6 attribute entries information

The route-attribute entries table lists the sets of BGP VPNv4/VPNv6 attributes stored in the device memory. Each set of attributes is unique and can be associated with one or more routes. In fact, the device typically has fewer route attribute entries than routes. To display the route-attribute entries table at any level of the CLI.

      device# show ip bgp vpn attribute-entries 
        Total number of BGP Attribute Entries: 55
1       Next Hop  :0.0.0.0            Metric   :0               Origin:IGP    
        Originator:0.0.0.0            Cluster List:None
        Aggregator:AS Number :0      Router-ID:0.0.0.0          Atomic:None  
        Local Pref:100               Communities:Internet 
        Extended Community: RT 600:1 
        AS Path   :310
        Address: 0x24644060  Hash:45 (0x0100036e) Reference Counts: 0:0:30
2       Next Hop  :0.0.0.0            Metric   :0               Origin:IGP    
        Originator:0.0.0.0            Cluster List:None
        Aggregator:AS Number :0      Router-ID:0.0.0.0          Atomic:None  
        Local Pref:100               Communities:Internet 
        Extended Community: RT 600:1 
        AS Path   :311
        Address: 0x24645f48  Hash:47 (0x01000370) Reference Counts: 0:0:30
3       Next Hop  :2.2.2.2            Metric   :0               Origin:IGP    
        Originator:0.0.0.0            Cluster List:None
        Aggregator:AS Number :0      Router-ID:0.0.0.0          Atomic:None  
        Local Pref:100               Communities:Internet 
        Extended Community: RT 100:1 RT 200:1 
        AS Path   :206 311
        Address: 0x24645538  Hash:276 (0x0100087a) Reference Counts: 30:0:0

This display shows the following information.

Table 1. BGP VPNv4 / VPNv6 attribute entries

This field...

Displays...

Total number of BGP Attribute Entries

The number of routes contained in the BGP4 route table for this device.

Next Hop

The IP address of the next hop device for routes that have this set of attributes.

Metric

The cost of the routes that have this set of attributes.

Origin

The source of the route information. The origin can be one of the following:

  • EGP - The routes with this set of attributes came to BGP through EGP.
  • IGP - The routes with this set of attributes came to BGP through IGP.
  • INCOMPLETE - The routes came from an origin other than one of the above. For example, they may have been redistributed from OSPF or RIP.

When BGP4 compares multiple routes to a destination to select the best route, IGP is preferred over EGP and both are preferred over INCOMPLETE.

Originator

The originator of the route in a route reflector environment.

Cluster List

The route-reflector clusters through which this set of attributes has passed.

Aggregator

Aggregator information:

  • AS Number shows the AS in which the network information in the attribute set was aggregated. This value applies only to aggregated routes and is otherwise 0.

Router-ID shows the device that originated this aggregator

Atomic

Whether the network information in this set of attributes has been aggregated and this aggregation has resulted in information loss.

  • TRUE - Indicates information loss has occurred
  • FALSE - Indicates no information loss has occurred
Note: Information loss under these circumstances is a normal part of BGP4 and does not indicate an error.

Local Pref

The degree of preference for routes that use this set of attributes relative to other routes in the local AS.

Communities

The communities that routes with this set of attributes are in.

Extended Community

The extended community attributes.

AS Path

The ASs through which routes with this set of attributes have passed. The local AS is shown in parentheses.

Address

This is an internal value used for debugging purposes only.

Hash

This is an internal value used for debugging purposes only.

Reference Counts

This is an internal value used for debugging purposes only.