Brocade Communications Systems ICX 7450 series User Manual

NOTE
If you specify a metric and metric type, the values you specify are used even if you do not use the always option.
The route-map parameter overrides other options. If set commands for metric and metric-type are specied in the route-map, the
command-line values of metric and metric-type if specied, are ignored for clarication.
The route-map rmap parameter species the route map reference.
The corresponding route-map should be created before conguring the route-map option along with the default-information-originate.
If the corresponding route-map was not been created beforehand, then the an error message will be displayed stating that the route-map
must be created.
OSPF distribute list
This feature
congures a distribution list to explicitly deny specic routes from being eligible for installation in the IP route table. By
default, all OSPF routes in the OSPF route table are eligible for installation in the IP route table. This feature does not block receipt of
LSAs for the denied routes. The device still receives the routes and installs them in the OSPF database. The feature only prevents the
software from installing the denied OSPF routes into the IP route table.
The OSPF distribution list can be managed using ACLs or Route Maps to identify routes to be denied as described in the following
sections:
• Conguring an OSPF Distribution List using ACLs
• Conguring an OSPF Distribution List using Route Maps
Conguring an OSPF distribution list using ACLs
To congure an OSPF distribution list using ACLs:
• Congure an ACL that identies the routes you want to deny. Using a standard ACL lets you deny routes based on the
destination network, but does not lter based on the network mask. To also lter based on the destination network's network
mask, use an extended ACL.
• Congure an OSPF distribution list that uses the ACL as input.
Examples
In the following example, the
rst three commands congure a standard ACL that denies routes to any 10.x.x.x destination network and
allows all other routes for eligibility to be installed in the IP route table. The last three commands change the CLI to the OSPF
conguration level and congure an OSPF distribution list that uses the ACL as input. The distribution list prevents routes to any 10.x.x.x
destination network from entering the IP route table. The distribution list does not prevent the routes from entering the OSPF database.
device(config)# ip access-list standard no_ip
device(config-std-nacl)# deny 10.0.0.0 0.255.255.255
device(config-std-nacl)# permit any
device(config)# router ospf
device(config-ospf-router) # area 0
device(config-ospf-router) # distribute-list no_ip in
In the following example, the
rst three commands congure an extended ACL that denies routes to any 10.31.39.x destination network
and allows all other routes for eligibility to be installed in the IP route table. The last three commands change the CLI to the OSPF
conguration level and congure an OSPF distribution list that uses the ACL as input. The distribution list prevents routes to any
OSPF distribute list
FastIron Ethernet Switch Layer 3 Routing
260 53-1003627-04

Brocade Communications Systems ICX 7450 series Specifications

General

Brand	Brocade Communications Systems
Model	ICX 7450 series
Category	Switch
Language	English