Configuring Bgp Basic Functions; Prerequisites; Configuration Procedure - 3Com MSR 50 Series Configuration Manual

Configuring BGP Basic
Functions

Prerequisites

Configuration Procedure

The section describes BGP basic configuration.
n
This section does not differentiate between BGP and MP-BGP.
■
Since BGP employs TCP, you need to specify IP addresses of peers, which may
■
not be neighboring routers.
Using logical links can also establish BGP peer relationships.
■
In general, IP addresses of loopback interfaces are used to improve stability of
■
BGP connections.
The neighboring nodes are accessible to each other at the network layer.
To configure BGP basic functions, use the following commands:
To do...
Enter system view
Enable BGP and enter BGP
view
Specify a Router ID
Specify the AS number for a
peer or a peer group
Configure a description for a
peer or a peer group
Enable IPv4 unicast address
family for all peers
Enable a peer
Disable session with a peer or
peer group
Enable the Enable BGP
logging on logging
peer state globally
changes
Enable
logging for a
peer or peer
group
Specify a preferred value for
routes from a peer or peer
group

Configuring BGP Basic Functions

Use the command...
system-view
bgp as-number
Router-id ip-address
peer { group-name |
ip-address } as-number
as-number
peer { group-name |
ip-address } description
description-text
default ipv4-unicast
peer ip-address enable
peer { group-name |
ip-address } ignore
log-peer-change
peer { group-name |
ip-address } log-change
peer { group-name |
ip-address }
preferred-value value
Remarks
-
Required
Not enabled by default
Optional
If no IP addresses are
configured for loopback
interface and other interfaces,
the task becomes required
Required
Not specified by default
Optional
Not configured by default
Optional
Enabled by default
Optional
Enabled by default
Optional
Not disabled by default
Optional
Enabled by default
Optional
Enabled by default
Optional
The preferred value defaults to
0
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