show ip bgp attribute-entries

Displays BGP4 route-attribute entries that are stored in device memory.
Syntax
show ip 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 ip bgp attribute-entries command displays the following information:

Output field

Description

Total number of BGP4 Attribute Entries

The number of routes contained in this BGP4 route table.

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 these attributes came to BGP4 through EGP.
  • IGP - The routes with these 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 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 these attributes relative to other routes in the local AS.

Communities

The communities to which routes with these attributes belong.

AS Path

The autonomous systems through which routes with these attributes have passed. The local AS is shown in parentheses.

Examples

The following example show sample output for the show ip bgp attribute-entries command. 

device> show ip bgp attribute-entries

        Total number of BGP Attribute Entries: 18 (0)
1       Next Hop  :192.168.1.6        MED :1             Origin:INCOMP
        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   :90000 80000 (length 11
)
        Address: 0x10e4e0c4  Hash:489 (0x03028536), PeerIdx 0
        Links: 0x00000000, 0x00000000, nlri: 0x10f4804a
        Reference Counts: 1:0:1, Magic: 51
2       Next Hop  :192.168.1.5        Metric   :1            Origin:INCOMP
        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   :90000 75000 (length 11)
        Address: 0x10e4e062  Hash:545 (0x0301e8f6), PeerIdx 0
        Links: 0x00000000, 0x00000000, nlri: 0x10f47ff0
        Reference Counts: 1:0:1, Magic: 49
Parent topic: Show Commands