Configuring OSPF
Configuring OSPF
OmniSwitch AOS Release 7 Advanced Routing Configuration Guide
March 2011
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 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 redistrib-
uted 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
parame-
ter. 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 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
