3Com Switch 7750 Configuration Guide Guide

Displaying and maintaining BGP 353
Configuring BGP
Confederation
c
CAUTION:
■ A confederation can include up to 32 sub-ASs. The AS number used by a
sub-AS which is configured to belong to a confederation is only valid inside the
confederation.
■ If the confederation implementation mechanism of other routers is different
from the RFC standardization, you can configure related command to make the
confederation compatible with the non-standard routers.
Displaying and
maintaining BGP
Displaying BGP After the above configuration, you can use the display command in any view to
display the BGP configuration and thus verify the configuration effect.
Table 287 Configure BGP confederation
Operation Command Description
Enter system view system-view -
Enable BGP, and enter BGP view bgp as-number
Required
By default, the
system does not
operate BGP.
Basic BGP
confederation
configuration
Configure
confederation ID
confederation id
as-number
Required
By default, no
confederation ID is
configured and no
sub-AS is configured
for a confederation.
Specify the sub-ASs
included in a
confederation
confederation
peer-as
as-number-list
Configure the compatibility of a
confederation
confederation
nonstandard
Optional
By default, the
confederation
configured is
consistent with the
RFC1965.
Table 288 Display BGP
Operation Command
Display information about peer group
display bgp [ multicast ] group [
group-name ]
Display routing information exported by BGP display bgp [ multicast ] network
Display information about AS path display bgp paths [ as-regular-expression ]
Display information about a BGP peer
display bgp [ multicast ] peer [ ip-address [
verbose ] ]
display bgp [ multicast ] peer [ verbose ]
Display information in the BGP routing table
display bgp [ multicast ] routing-table
[ip-address [ mask ] ]
Display the route matching with the specific
AS path ACL.
display bgp [ multicast ] routing-table
as-path-acl acl-number
Display routing information about CIDR display bgp [ multicast ] routing-table cidr