Dell S4048T, Руководство по настройке

Страница: 251 / 1277

route-map map-name [permit | deny] [ sequence-number ]
2 Change LOCAL_PREF value for routes meeting the criteria of this route map.
CONFIG-ROUTE-MAP mode
set local-preference value
3 Return to CONFIGURATION mode.
CONFIG-ROUTE-MAP mode
exit
4 Enter ROUTER BGP mode.
CONFIGURATION mode
router bgp as-number
5 Apply the route map to the neighbor or peer group’s incoming or outgoing routes.
CONFIG-ROUTER-BGP mode
neighbor { ip-address | peer-group-name } route-map map-name {in | out}
To view the BGP configuration, use the
show config
command in CONFIGURATION ROUTER BGP mode.
To view a route map configuration, use the
show route-map
command in EXEC Privilege mode.
Configuring the local System or a Different
System to be the Next Hop for BGP-Learned
Routes
You can configure the local router or a different router as the next hop for BGP-learned routes.
To change how the NEXT_HOP attribute is used, enter the first command. To view the BGP configuration,
use the
show config
command in CONFIGURATION ROUTER BGP mode or the
show running-config
bgp
command in EXEC Privilege mode.
You can also use route maps to change this and other BGP attributes. For example, you can include the
second command in a route map to specify the next hop address.
• Disable next hop processing and configure the router (route reflector) as the next hop for a BGP neighbor.
CONFIG-ROUTER-BGP mode
neighbor { ip-address | peer-group-name } next-hop-self [all]
If you do not use the
all
keyword, the next hop of only eBGP-learned routes is updated by the route
reflector. If you use the
all
keyword, the next hop of both eBGP- and iBGP-learned routes are updated
by the route reflector.
• Sets the next hop address.
CONFIG-ROUTE-MAP mode
set next-hop ip-address
If the
set next-hop
command is applied on the out-bound interface using a route map, it takes
precedence over the
neighbor next-hop-self
command.
Border Gateway Protocol IPv4 (BGPv4) 251