3com 8807 사용자 가이드

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 33: BGP C

ONFIGURATION

Switch 8800 Family series provide various MBGP extended applications, including 
extension of multicast, VPN, and so on. Different extended applications should be 
configured in their own address family views.

For more information about the commands executed in MBGP address family 
view, see "Multicast Protocol" and "MPLS Configuration" of this manual.

As described in Section “BGP Routing Mechanism” “BGP Routing Mechanism”, 
BGP speakers among which messages are exchanged are peers to one another. 
Multiple related peers compose a peer group, and multiple related peers compose 
a peer group.

In Switch 8800 Family series, a BGP peer must belong to a peer group. If you want 
to configure a BGP peer, you need first to create a peer group and then add a peer 
into the group.

BGP peer group feature can simplify user configuration and improve route 
advertisement efficiency. When added into a peer group, a peer inherits all the 
configuration of the group.

If the configuration of a peer group changes, the configuration of its member 
peers also alters. Some attributes can be configured to a particular member peer 
by specifying its IP address. The attributes configured in this way is with higher 
priority than those by configuring for peer group. It should be noted that all 
member peers must use the same update policy as its group, but may use different 
ingress policy.

These categories are involved in BGP configuration:

1 Basic BGP configuration

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2 BGP peer configuration

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3 BGP route configuration

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4 BGP protocol configuration

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