FTOS Configuration Guide for the C-Series - Force10 Networks

To configure a set condition, use any or all of the following commands in the ROUTE-MAP mode:
Command Syntax Command Mode Purpose
set as-path prepend as-number [...
as-number]
Use these commands to create route map instances. There is no limit to the number of set and match
commands per route map, but the convention is to keep the number of match and set filters in a route map
low. Set commands do not require a corresponding match command.
Configure a route map for route redistribution
CONFIG-ROUTE-MAP Add an AS-PATH number to the beginning
of the AS-PATH
set automatic-tag CONFIG-ROUTE-MAP Generate a tag to be added to redistributed
routes.
set level {backbone | level-1 |
level-1-2 | level-2 | stub-area }
CONFIG-ROUTE-MAP Specify an OSPF area or ISIS level for
redistributed routes.
set local-preference value CONFIG-ROUTE-MAP Specify a value for the BGP route’s
LOCAL_PREF attribute.
set metric {+ | - | metric-value} CONFIG-ROUTE-MAP Specify a value for redistributed routes.
set metric-type {external | internal
| type-1 | type-2}
CONFIG-ROUTE-MAP Specify an OSPF or ISIS type for
redistributed routes.
set next-hop ip-address CONFIG-ROUTE-MAP Assign an IP address as the route’s next
hop.
set ipv6 next-hop ip-address CONFIG-ROUTE-MAP Assign an IPv6 address as the route’s next
hop.
set origin {egp | igp | incomplete} CONFIG-ROUTE-MAP Assign an ORIGIN attribute.
set tag tag-value CONFIG-ROUTE-MAP Specify a tag for the redistributed routes.
set weight value CONFIG-ROUTE-MAP Specify a value as the route’s weight.
Route maps on their own cannot affect traffic and must be included in different commands to affect routing
traffic. To apply a route map to traffic on the E-Series, you must call or include that route map in a
command such as the redistribute or default-information originate commands in OSPF, ISIS, and
BGP.
Route redistribution occurs when FTOS learns the advertising routes from static or directly connected
routes or another routing protocol. Different protocols assign different values to redistributed routes to
identify either the routes and their origins. The metric value is the most common attribute that is changed
to properly redistribute other routes into a routing protocol. Other attributes that can be changed include
the metric type (for example, external and internal route types in OSPF) and route tag. Use the
redistribute command in OSPF, RIP, ISIS, and BGP to set some of these attributes for routes that are
redistributed into those protocols.
Route maps add to that redistribution capability by allowing you to match specific routes and set or change
more attributes when redistributing those routes.
FTOS Configuration Guide, version 7.7.1.0 363