Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 428)

Commands for device A
deviceA(config)# router bgp
deviceA(config-bgp-router)# local-as 64512
deviceA(config-bgp-router)# confederation identifier 10
deviceA(config-bgp-router)# confederation peers 64512 64513
deviceA(config-bgp-router)# write memory
Syntax: [no] local-as num
The num parameter with the local-as command indicates the AS number for the BGP4 devices within
the sub-AS. You can specify a number in the range 1 - 4294967295. I Brocade recommends that you
use a number within the range of well-known private autonomous systems, 64512 through 65535.
Syntax: [no] confederation identifier num
The num parameter with the confederation identifier command indicates the confederation number.
The confederation ID is the AS number by which BGP4 devices outside the confederation recognize
the confederation. A BGP4 device outside the confederation is not aware of, and does not care that
your BGP4 devices are in multiple sub-autonomous systems. BGP4 devices use the confederation ID
when communicating with devices outside the confederation. The confederation ID must be different
from the sub-AS numbers. For the num parameter, you can specify a number in the range 1 -
4294967295.
Syntax: [no] confederation peers num [num ...]
The num parameter with the confederation peers command indicates the sub-AS numbers for the
sub-autonomous systems in the confederation. You can list all sub-autonomous systems in the
confederation. You must specify all the sub-autonomous systems with which this device has peer
sessions in the confederation. All the devices within the same sub-AS use IBGP to exchange device
information. Devices in different sub-autonomous systems within the confederation use EBGP to
exchange device information. The num is a number in the range 1 - 4294967295.
Commands for device B
deviceB(config)# router bgp
deviceB(config-bgp-router)# local-as 64512
deviceB(config-bgp-router)# confederation identifier 10
deviceB(config-bgp-router)# confederation peers 64512 64513
deviceB(config-bgp-router)# write memory
Commands for device C
deviceC(config)# router bgp
deviceC(config-bgp-router)# local-as 64513
deviceC(config-bgp-router)# confederation identifier 10
deviceC(config-bgp-router)# confederation peers 64512 64513
deviceC(config-bgp-router)# write memory
Commands for device D
deviceD(config)# router bgp
deviceD(config-bgp-router)# local-as 64513
deviceD(config-bgp-router)# confederation identifier 10
deviceD(config-bgp-router)# confederation peers 64512 64513
deviceD(config-bgp-router)# write memory
Configuring BGP4 (IPv4)
428 FastIron Ethernet Switch Layer 3 Routing Configuration Guide
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