Switch 7700 Configuration Guide, v2

120 CHAPTER 5: ROUTING PROTOCOL OPERATION
Perform the following configurations in BGP view.
Configuring an AS number To configure a BGP peer group as the neighbor of
local router, the AS to which the peer group belongs should be specified first.
Exchange of routing information between two ends is disabled until the peer ends
and AS to which the peer ends belong are specified.
If the AS numbers specified by the as-number and bgp commands are the same,
the configured neighbor is an internal neighbor, otherwise it is an external
neighbor.
If this command is not used to configure the AS number for a peer group, each
peer to be added to the peer group should have its AS number pre-configured. If
the AS number is configured for a peer group, all peers to be added to the group
should be configured (if configured) the same AS numbers with the peer group.
Creating a Peer Group and Adding a Member By default, IBGP peers will be
added into a default peer group that is invisible. The configuration of route update
policy for each IBGP peer is only effective for the other IBGP peers in the same
group. If the router is not a route reflector, all IBGP peers are grouped into the
same group, otherwise all route reflector clients are grouped into a group and all
non-clients are grouped into another group.
Members of EBGP peer group must be located on the same network segment, or
it is possible for some EBGP peers to discard the route update messages sent by
the local router.
IBGP peers and EBGP peers cannot be added to the same group.
Configuring a Description of a Peer Group The description of a peer group
can be configured to facilitate learning the characteristics of the peer.
Tab le 86 Configure AS Number
Operation Command
Configure the AS number of the peer group peer { peer-address | group-name } as-number
as-number
Delete the AS number of peer group. undo peer { peer-address | group-name } as-number
as-number
Tab le 87 Create a Peer Group and Add a Member
Operation Command
Create a peer group group group-name
Delete a specified peer group undo group group-name
Create a peer in the peer group peer peer-address group group-name
Delete a peer from the peer group undo peer peer-address group group-name
Reset connections of all members in the peer
group (in user view)
reset bgp group group-name
Tab le 88 Configure a Description of a Peer Group
Operation Command
Configure description of a peer group peer { peer-address | group-name } description
description-line