show ipv6 bgp attribute-entries

Displays BGP4+ route-attribute entries that are stored in device memory.
Syntax
show ipv6 bgp attribute-entries
Modes

User EXEC mode

Usage Guidelines

The route-attribute entries table lists the sets of BGP4+ attributes that are stored in device memory. Each set of attributes is unique and can be associated with one or more routes. In fact, the device typically has fewer attribute entries than routes. Use this command to view BGP4+ route-attribute entries that are stored in device memory.

The show ipv6 bgp attribute-entries command displays the following information:

Output field Description

Total number of BGP Attribute Entries

The number of entries contained in the device’s BGP4+ route-attribute entries table.

Next Hop

The IPv6 address of the next hop router for routes that have this set of attributes.

MED

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 BGP4+ through EGP.
  • IGP - The routes with this set of attributes came to BGP4+ through IGP.
  • INCOMPLETE - The routes came from an origin other than EGP or IGP. For example, they may have been redistributed from OSPFv3 or RIPng.

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 router 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
  • None - Indicates this attribute is not present.
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.

AS Path

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

Address

For debugging purposes only.

Hash

For debugging purposes only.

Links

For debugging purposes only.

Reference Counts

For debugging purposes only.

Examples
The following example show sample output for the show ip bgp attribute-entries command.
device> show ipv6 bgp attribute-entries

Total number of BGP Attribute Entries: 4
1       Next Hop  : ::                                           MED :1
        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
        AS Path   : (length 0)
        AsPathLen: 0  AsNum: 0,      SegmentNum: 0, Neighboring As: 1, Source As 0
        Address: 0x2a8bd092  Hash:364 (0x1000000)
        Links: 0x0, 0x0
        Reference Counts: 2:0:4, Magic: 3
…