Basic Bgp Configuration - 3Com 7757 Configuration Manual

Basic BGP
Configuration
Configuration
Prerequisites
Configuring BGP
Multicast Address Family
Configuring Basic BGP
Functions
Before performing basic BGP configuration, you need to ensure:
Network layer connectivity between adjacent nodes.
■
Before performing basic BGP configuration, make sure the following are available.
Local AS number and router ID
■
IPv4 address and AS number of the peers
■
Source interface of update packets.
■
Table 289 Configure BGP multicast address family
Operation
Enter system view
Start BGP and enter BGP view
Enter multicast address family
view
n
Commands are configured in a similar way in multicast address family view and in
BGP view. Unless otherwise specified, follow the configuration in BGP view. For
details, see the corresponding command manual. All the following uses the
configuration in BGP view for example.
Table 290 Configure basic BGP functions
Operation
Enter system view
Specify the router ID
Enable BGP and enter BGP
view
Create a peer group
Add a peer to the peer group
Set an AS number for the peer
group
Assign a description string for
a BGP peer/a BGP peer group
Activate a specified BGP peer
Command
system-view
bgp as-number
ipv4-family multicast
Command
system-view
router id ip-address
bgp as-number
group group-name
[ internal | external ]
peer peer-address group
group-name [ as-number
as-number ]
peer group-name
as-number as-number
peer { group-name |
ip-address } description
description-text
peer { group-name |
ip-address } enable

Basic BGP Configuration

Description
-
Required
By default, the system does
not run BGP.
Required
Description
-
Optional
Required
By default, BGP is disabled.
Required
Required
If it is an IBGP peer, you need
not specify an AS number.
Required
By default, a peer group has
no AS number.
Optional
By default, a peer/a peer group
is not assigned a description
string.
Required
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