3com 8807 Reference Guide

C

HAPTER

 27: BGP C

ONFIGURATION

 C

OMMANDS

# Display the information about the AS paths.

<SW8800> display bgp paths ^600$

 

Flags: # - valid,   ^ - best,

 

          D - damped,   H - history,

 

          I - internal,     S - aggregate suppressed

 

Id  Hash-Index  References  Aggregator  Origin     As-Path

 

--------------------------------------------------------------------

 

6    90              15       <null>      IGP        600 

display bgp peer [ peer-address ] [ verbose ]

Any view

peer-address: Specifies the peer to be displayed.

verbose: Displays the detailed information of the peer.

Table 72   Description of the fields of the display bgp paths command

Flags 

State flags:

# - valid (valid)

^ - best (selected)

D - damped (discarded)

H - history (history)

I - internal (interior gateway protocol)

S - aggregate suppressed (suppressed) 

Id 

Value of sequence number 

Hash-Index  Value of Hash-index 

References  Count of times that the route is referenced 

Aggregator  Mask length of aggregate route 

Origin 

Origin attribute of route, which indicates that the route updates its origin 
relative to the route originating it from AS. It has three optional values: 

IGP 

The route belongs to inside of AS. BGP treats 
aggregate route and the route defined by the 
command network as inside of AS, and origin type 
as IGP. 

EGP 

The route is learned from exterior gateway protocol 
(EGP). 

INC 

Short for INCOMPLETE: indicates that the original 
source of the route information is unknown 
(learned by other methods). BGP sets the origin of 
the route imported through other IGP protocols as 
INCOMPLETE 

As-path 

AS-path attribute of route, which records all AS areas that the route passes. 
With it, route loop can be avoided