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Configuring BGP
Command
Step 11
bgp default local-preference value
Step 12
maximum-paths number
Step 13
end
Step 14
show ip bgp
show ip bgp neighbors
Step 15
copy running-config startup-config
Use the no form of each command to return to the default state.
Configuring BGP Filtering with Route Maps
Within BGP, route maps can be used to control and to modify routing information and to define the
conditions by which routes are redistributed between routing domains. See the
Redistribute Routing Information" section on page 32-73
route map has a name that identifies the route map (map tag) and an optional sequence number.
Beginning in privileged EXEC mode, follow these steps to use a route map to disable next-hop
processing:
Command
Step 1
configure terminal
Step 2
route-map map-tag [[permit | deny] |
sequence-number]]
Step 3
set ip next-hop ip-address [...ip-address]
[peer-address]
Step 4
end
Step 5
show route-map [map-name]
Step 6
copy running-config startup-config
Use the no route-map map-tag command to delete the route map. Use the no set ip next-hop ip-address
command to re-enable next-hop processing.
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
32-48
Purpose
(Optional) Change the default local preference value. The
range is 0 to 4294967295; the default value is 100. The
highest local preference value is preferred.
(Optional) Configure the number of paths to be added to
the IP routing table. The default is to only enter the best
path in the routing table. The range is from 1 to 8. Having
multiple paths allows load balancing among the paths.
Return to privileged EXEC mode.
Verify the reset by checking information about the routing
table and about BGP neighbors.
(Optional) Save your entries in the configuration file.
for more information about route maps. Each
Purpose
Enter global configuration mode.
Create a route map, and enter route-map configuration mode.
(Optional) Set a route map to disable next-hop processing
In an inbound route map, set the next hop of matching routes to
•
be the neighbor peering address, overriding third-party next hops.
In an outbound route map of a BGP peer, set the next hop to the
•
peering address of the local router, disabling the next-hop
calculation.
Return to privileged EXEC mode.
Display all route maps configured or only the one specified to verify
configuration.
(Optional) Save your entries in the configuration file.
Chapter 32
Configuring IP Unicast Routing
"Using Route Maps to
78-17058-01
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Troubleshooting
