Huawei Quidway S5600 Series Operation Manual page 377

Operation Manual – Routing Protocol
Quidway S5600 Series Ethernet Switches-Release 1510
Community can also be used to ease the routing policy management. And its
management range is much wider than that of the peer group. It controls the routing
policy of multiple BGP routers.
In an AS, to ensure the connectivity among IBGP peers, you need to set up full
connection among them. When there are too many IBGP peers, it will cost a lot in
establishing a full connection network. Using RR or confederation can solve the
problem. In a large AS, RR and confederation can be used simultaneously.
5.7.1 Configuration Prerequisites
Before configuring a large-scale BGP network, you need to ensure:
Network layer connectivity between adjacent nodes.
Before configuring a large-scale BGP network, you need to prepare the following data:
Peer group type, name, and the peers included.
If you want to use community, the name of the applied routing policy is needed.
If you want to use RR, you need to determine the roles (client, non-client) of
routers.
If you want to use confederation, you need to determine the confederation ID and
the sub-AS number.
5.7.2 Configuring BGP Peer Group
Table 5-15 Configure BGP peer group
Enter system view
Enable BGP, and enter BGP
view
Create
an
IBGP
peer
group
Operation
Create an IBGP
peer group
Add a peer to a
peer group
Huawei Technologies Proprietary
Command
system-view
bgp as-number
group group-name
[ internal ]
peer ip-address
group group-name
[ as-number
as-number ]
5-32
Chapter 5 BGP Configuration
Description
—
Required
By default, the system
does not operate BGP.
Optional
If the command is executed
without the internal or
external keyword, an IBGP
peer group will be created.
You can add multiple peers
to the group, and the
system will automatically
create a peer in BGP view,
and configure its
number as the local AS
number.
AS