User guide

Configuring OSPF Configuring OSPF
OmniSwitch AOS Release 7 Advanced Routing Configuration Guide March 2015 page 1-23
• Set. A set statement is used to modify route information before the route is redistributed into the
receiving protocol. This statement is only applied if all the criteria of the route map is met and the
action permits redistribution.
The ip route-map command is used to configure route map statements and provides the following action,
match, and set parameters:
Refer to the “IP Commands” chapter in the OmniSwitch AOS Release 7 CLI Reference Guide for more
information about the ip route-map command parameters and usage guidelines.
Once a route map is created, it is then applied using the ip redist command. See “Configuring Route Map
Redistribution” on page 1-26 for more information.
Creating a Route Map
When a route map is created, it is given a name (up to 20 characters), a sequence number, and an action
(permit or deny). Specifying a sequence number is optional.
To create a route map, use the ip route-map command with the action parameter. For example,
-> ip route-map ospf-to-bgp sequence-number 10 action permit
The above command creates the ospf-to-bgp route map, assigns a sequence number of 10 to the route
map, and specifies a permit action.
To optionally filter routes before redistribution, use the ip route-map command with a match parameter
to configure match criteria for incoming routes. For example,
-> ip route-map ospf-to-bgp sequence-number 10 match tag 8
The above command configures a match statement for the ospf-to-bgp route map to filter routes based on
their tag value. When this route map is applied, only OSPF routes with a tag value of eight are
redistributed into the BGP network. All other routes with a different tag value are dropped.
To modify route information before it is redistributed, use the ip route-map command with a set
parameter. For example,
-> ip route-map ospf-to-bgp sequence-number 10 set tag 5
The above command configures a set statement for the ospf-to-bgp route map that changes the route tag
value to five. Because this statement is part of the ospf-to-bgp route map, it is only applied to routes that
have an existing tag value equal to eight.
The following is a summary of the commands used in the above examples:
-> ip route-map ospf-to-bgp sequence-number 10 action permit
-> ip route-map ospf-to-bgp sequence-number 10 match tag 8
-> ip route-map ospf-to-bgp sequence-number 10 set tag 5
ip route-map action ... ip route-map match ... ip route-map set ...
permit
deny
ip-address
ip-nexthop
ipv6-address
ipv6-nexthop
tag
ipv4-interface
ipv6-interface
metric
route-type
metric
metric-type
tag
community
local-preference
level
ip-nexthop
ipv6-nexthop