Chapter 29
| 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
â—† 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.
â—† 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.
show ip bgp prefix-list Shows routes matching the specified prefix-list PE
show ip bgp regexp Shows routes matching the AS path regular expression PE
show ip bgp route-map Shows routes matching the specified route map PE
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
show ip protocols bgp Displays BGP process parameters PE
Table 185: Border Gateway Protocol Commands – Version 4 (Continued)
Command Function Mode
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