Configuring OSPFv3
Configuring OSPFv3
OmniSwitch AOS Release 7 Advanced Routing Configuration Guide
March 2011
page 2-19
Using Route Maps
A route map specifies the criteria that are used to control redistribution of routes between protocols. Such
criteria is defined by configuring route map statements. There are three different types of statements:
•
Action
. An action statement configures the route map name, sequence number, and whether or not
redistribution is permitted or denied based on route map criteria.
•
Match.
A match statement specifies criteria that a route must match. When a match occurs, then the
action statement is applied to the route.
•
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
ipv6 redist
command. See
“Configuring Route
Map Redistribution” on page 2-22
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. If a value is not configured, then the number
50 is used by default.
To create a route map, use the
ip route-map
command with the
action
parameter. For example,
-> ip route-map ospf-to-rip sequence-number 10 action permit
The above command creates the ospf-to-rip 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-rip sequence-number 10 match tag 8
The above command configures a match statement for the ospf-to-rip route map to filter routes based on
their tag value. When this route map is applied, only OSPFv3 routes with a tag value of eight are redistrib-
uted into the RIPng network. All other routes with a different tag value are dropped.
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
