Huawei Quidway S3500 Series Operation Manual page 223

Operation Manual - Routing Protocol
Quidway S3500 Series Ethernet Switches
certain member by designating its IP address so that the member is not affected by the
group's configuration in terms of these attributes.
Perform the following configurations in BGP view.
I. Configuring 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.
Table 5-2 Configuring AS number
Configure the AS number of the
peer (group)
delete the AS number of peer
(group).
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.
II. Create a peer group and add 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.
Table 5-3 Create a peer group and add a member
Create a peer group
Delete a specified peer group
Create a peer in the peer group
Operation
Operation
Huawei Technologies Proprietary
Command
peer { peer-address | group-name } as-number
as-number
undo peer { peer-address | group-name }
as-number as-number
group group-name
undo group group-name
peer peer-address group group-name
5-5
Chapter 5 BGP Configuration
Command