Configuring A Bgp Confederation - HP FlexFabric 12900E Series Configuration Manual

Step
3. Ignore the ORIGINATOR_ID
attribute.
To ignore the ORIGINATOR_ID attribute (IPv6 unicast address family):
Step
1. Enter system view.
2. Enter BGP instance view or
BGP-VPN instance view.
3. Ignore the ORIGINATOR_ID
attribute.

Configuring a BGP confederation

BGP confederation provides another way to reduce IBGP connections in an AS.
A confederation contains sub-ASs. In each sub-AS, IBGP peers are fully meshed. Sub-ASs establish
EBGP connections in between.
Configuring a BGP confederation
After you split an AS into multiple sub-ASs, configure a router in a sub-AS as follows:
1. Enable BGP and specify the AS number of the router. For more information, see
BGP."
2. Specify the confederation ID. From an outsider's perspective, the sub-ASs of the confederation
is a single AS, which is identified by the confederation ID.
3. If the router needs to establish EBGP connections to other sub-ASs, you must specify the
peering sub-ASs in the confederation.
A confederation can contain a maximum of 32 sub-ASs. The AS number of a sub-AS is effective only
in the confederation.
To configure a BGP confederation:
Command
peer { group-name | ipv4-address
[ mask-length
ignore-originatorid
Command
system-view
•
Enter BGP instance view:
bgp as-number [ instance
instance-name
[ multi-session-thread ]
•
Enter BGP-VPN
view:
a. bgp as-number
[
instance-name
[ multi-session-thread ]
b. ip vpn-instance
vpn-instance-name
peer { group-name | ipv6-address
[ prefix-length
ignore-originatorid
282
Remarks
By default, BGP does not ignore
the ORIGINATOR_ID attribute.
Make sure this command does not
] } result in a routing loop.
After you execute this command,
BGP also
CLUSTER_LIST attribute.
Remarks
N/A
]
instance
N/A
instance
]
By default, BGP does not ignore
the ORIGINATOR_ID attribute.
Make sure this command does not
] } result in a routing loop.
After you execute this command,
BGP also
CLUSTER_LIST attribute.
ignores the
ignores the
"Enabling