ECS4660-28F_Management Guide-R03

C HAPTER 51 | IP Routing Commands
Border Gateway Protocol (BGPv4)
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General Configuration
router bgp This command enables the Border Gateway Protocol (BGPv4) routing
process and enters router configuration mode. Use the no form to disable
it.
SYNTAX
[no] router bgp as-number
as-number – Autonomous system number which identifies this
router as a member of the specified domain, and tags routing
messages passed to other BGP routers with this number.
(Range: 1-4294967295)
COMMAND MODE
Global Configuration
DEFAULT SETTING
No routing process is defined.
COMMAND USAGE
◆ To enable BGP routing, you must use this command to establish a BGP
routing process. After entering this command, the switch enters router
configuration mode.
◆ AS numbers in the range 64512-65535 are normally used for private
routing domains, and can be removed from the AS path attribute in
outbound routing messages using the neighbor remove-private-as
command. Note that AS number 23456 is reserved for the AS-Transitive
attribute which is required when setting up a new BGP speaker.
◆ Use this command to specify all of the routers within an autonomous
system used to exchange interior or exterior BGP routing messages.
Repeat this process for any other autonomous system under your
administrative control to create a distributed routing core for the
exchange of routing information between autonomous systems.
show ip bgp scan Shows BGP scan status PE
show ip bgp summary Shows summary information for all connections PE
show ip community-list Shows routes permitted by a community list PE
show ip
extcommunity-list
Shows routes permitted by an extended community
list
PE
show ip prefix-list Shows the specified prefix list PE
show ip prefix-list detail Shows detailed information for the specified prefix list PE
show ip prefix-list
summary
Shows summary information for the specified prefix
list
PE
Table 270: Border Gateway Protocol Commands – Version 4 (Continued)
Command Function Mode