Dell Brocade DCX, Configuration Manual

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566 BigIron RX Series Configuration Guide
53-1001810-01
Configuring a PBR policy
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Configure the route map
After you configure the ACLs, you can configure a PBR route map that matches based on the ACLs
and sets routing information in the IP traffic.
NOTE
The match and set statements described in this section are the only route-map statements
supported for PBR. Other route-map statements described in the documentation apply only to the
protocols with which they are described.
To configure a PBR route map, enter commands such as the following.
BigIron RX(config)# route-map test-route permit 99
BigIron RX(config-routemap test-route)# match ip address 99
BigIron RX(config-routemap test-route)# set ip next-hop 192.168.2.1
BigIron RX(config-routemap test-route)# exit
The commands in this example configure an entry in a route map named “test-route”. The match
statement matches on IP information in ACL 99. The set statement changes the next-hop IP
address for packets that match to 192.168.2.1.
Syntax: [no] rouite-map <map-name> permit l deny <num>
The <map-name> is a string of characters that names the map. Map names can be up to 32
characters in length. You can define an unlimited number of route maps on the device, as long as
system memory is available.
The permit | deny parameter specifies the action the device will take if a route matches a match
statement:
•
If you specify deny, the device does not apply a PBR policy to packets that match the ACLs in a
match clause. Those packets are routed normally,
•
If you specify permit, the device applies the match and set statements associated with this
route map instance.
The <num> parameter specifies the instance of the route map you are defining. Routes are
compared to the instances in ascending numerical order. For example, a route is compared to
instance 1, then instance 2, and so on.
PBR uses up to 6 route map instances for comparison and ignore the rest.
Syntax: [no] match ip address <ACL-num-or-name>
The <ACL-num> parameter specifies a standard or extended ACL number or name.
Syntax: [no] set ip next hop <ip-addr>
This command sets the next-hop IP address for traffic that matches a match statement in the route
map.
Syntax: [no] set interface null0
This command sends the traffic to the null0 interface, which is the same as dropping the traffic.
Enabling PBR
After you configure the ACLs and route map entries, you can enable PBR globally, on individual
interfaces, or both as described in this section. To enable PBR, you apply a route map you have
configured for PBR globally or locally.