Dell Force10 C150 Configuration Manual page 227

Use these commands in the following sequence, starting in the CONFIGURATION mode to establish BGP
sessions on the router.
Step Command Syntax
router bgp
1
as-number
bgp four-octet-as-support
1a
address-family [ipv4 | ipv6}
1b
neighbor {
2 ip-address
} remote-as as-
name
neighbor {
3 ip-address
peer-group-name
Note: When you change the configuration of a BGP neighbor, always reset it by entering the clear
ip bgp command in EXEC Privilege mode.
Command Mode
CONFIGURATION
Only one AS is supported per system
If you enter a 4-Byte AS Number, 4-Byte AS Support is enabled
automatically.
CONFIG-ROUTER-B
GP
Use it only if you support
Number
command must be enabled first.
Disable 4-Byte support and return to the default 2-Byte format by using
the no bgp four-octet-as-support command. You cannot disable
4-Byte support if you currently have a 4-Byte ASN configured.
Disabling 4-Byte AS Numbers also disables ASDOT and ASDOT+
number representation. All AS Numbers will be displayed in
ASPLAIN format.
CONFIG-ROUTER-B
GP
| peer-group CONFIG-ROUTER-B
GP
number
You must
| CONFIG-ROUTER-B
} no shutdown
GP
Purpose
Assign an AS number and enter the
ROUTER BGP mode.
AS Number: 0-65535 (2-Byte) or
1-4294967295 (4-Byte) or 0.1-65535.65535
(Dotted format)
Enable 4-Byte support for the BGP process.
Note: This is an OPTIONAL command.
Enable if you want to use 4-Byte AS
numbers or if you support
Representation.
4-Byte AS Numbers
Representation. If you are supporting 4-Byte ASNs, this
Enable IPv4 multicast or IPv6 mode.
Use this command to enter BGP for IPv6
mode (CONF-ROUTER_BGPv6_AF).
Add a neighbor as a remote AS.
Formats:
IP Address A.B.C.D
Peer-Group Name: 16 characters
AS-number: 0-65535 (2-Byte) or
1-4294967295 (4-Byte) or 0.1-65535.65535
(Dotted format)
Configure Peer Groups before assigning it a remote AS.
Enable the BGP neighbor.
Border Gateway Protocol IPv4 (BGPv4) | 227
AS4 Number
or if you support AS4