Configuring Bgp Peer Groups - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
Local AS number : 10
Paths:
BGP routing table entry information of 192.168.0.0/16:
From: 10.2.1.2 (3.3.3.3)
Route Duration: 1d09h07m46s
Relay IP Nexthop: 10.2.1.2
Relay IP Out-interface: Ethernet3/0/1
Original nexthop: 10.2.1.2
Qos information : 0x0
AS-path 100, origin incomplete, pref-val 0, valid, external, best, select, pre
255
Aggregator: AS 100, Aggregator ID 3.3.3.3, Atomic-aggregate
Advertised to such 2 peers:

8.9 Configuring BGP Peer Groups

Configuring BGP peer groups simplifies the BGP network configuration and improves the route
advertisement efficiency.
8.9.1 Before You Start
Before configuring BGP peer groups, familiarize yourself with the usage scenario, complete the
pre-configuration tasks, and obtain the data required for the configuration.
Applicable Environment
A BGP peer group consists of BGP peers that have the same update policies and configurations.
A large-scale BGP network has a large number of peers. Configuring and maintaining these
peers is difficult. To address this problem, configure a BGP peer group for BGP peers with the
same configurations. Configuring BGP peer groups simplifies peer management and improves
the route advertisement efficiency.
Based on the ASs where peers reside, peer groups are classified as follows:
l
l
l
If a function is configured on a peer and its peer group, the function configured on the peer takes
precedence over that configured on the peer group. After a peer group is created, peers can be
added to the peer group. If these peers are not configured separately, they will inherit the
configurations of the peer group. If a peer in a peer group has a specific configuration
requirement, the peer can be configured separately. The configuration of this peer will override
the configuration inherited by the peer from the peer group.
Pre-configuration Tasks
Before configuring BGP peer groups, complete the following task:
l
Issue 02 (2014-09-30)
1 available, 1 best, 1 select
10.1.1.1
10.2.1.2
IBGP peer group: The peers of an IBGP peer group are in the same AS.
Pure EBGP peer group: The peers of a pure EBGP peer group are in the same external AS.
Mixed EBGP peer group: The peers of a mixed EBGP peer group are in different external
ASs.
Configuring Basic BGP Functions
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8 BGP Configuration
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