Dell PowerConnect B-FCXs Configuration Manual page 1086

30
Filtering
As shown in this example, the command prompt changes to the Route Map level. You can enter
the match and set statements at this level. Refer to
page 1044 and
The <map-name> is a string of characters that names the map. Map names can be up to 32
characters in length.
The permit | deny parameter specifies the action the router will take if a route matches a match
statement.
•
•
The <num> parameter specifies the instance of the route map you are defining. Each route map
can have up to 50 instances.
To delete a route map, enter a command such as the following. When you delete a route map, all
the permit and deny entries in the route map are deleted.
PowerConnect(config)#no route-map Map1
This command deletes a route map named "Map1". All entries in the route map are deleted.
To delete a specific instance of a route map without deleting the rest of the route map, enter a
command such as the following.
PowerConnect(config)#no route-map Map1 permit 10
This command deletes the specified instance from the route map but leaves the other instances of
the route map intact.
Specifying the match conditions
Use the following command to define the match conditions for instance 1 of the route map
GET_ONE. This instance compares the route updates against BGP4 address filter 11.
PowerConnect(config-routemap GET_ONE)#match address-filters 11
Syntax: match [as-path <num>] | [address-filters | as-path-filters | community-filters
The as-path <num> parameter specifies an AS-path ACL. You can specify up to five AS-path ACLs.
To configure an AS-path ACL, use the ip as-path access-list command. Refer to
AS-path ACL"
The address-filters | as-path-filters | community-filters <num,num,...> parameter specifies a filter
or list of filters to be matched for each route. The router treats the first match as the best match. If
a route does not match any filter in the list, then the router considers the match condition to have
failed. To configure these types of filters, use commands at the BGP configuration level:
•
•
•
You can enter up to six community names on the same command line.
1044
"Setting parameters in the routes"
If you specify deny, the Layer 3 Switch does not advertise or learn the route.
If you specify permit, the Layer 3 Switch applies the match and set statements associated with
this route map instance.
<num,num,...>] | [community <num>] | [community <ACL> exact-match] | [ip address
<ACL> | prefix-list <string>] | [ip route-source <ACL> | prefix <name>] [metric <num>] |
[next-hop <address-filter-list>] | [nlri multicast | unicast | multicast unicast] | [route-type
internal | external-type1 | external-type2] | [tag <tag-value>]
on page 1036.
To configure an address filter, refer to
To configure an AS-path filter or AS-path ACL, refer to
To configure a community filter or community ACL, refer to
page 1038.
"Specifying the match conditions"
on page 1047.
"Filtering specific IP addresses"
"Filtering AS-paths"
"Filtering communities"
PowerConnect B-Series FCX Configuration Guide
on
"Defining an
on page 1033.
on page 1035.
on
53-1002266-01