Dell Force10 S4820T S4820T Configuration Guide - Page 141

Command Syntax match tag tag-value Command Mode CONFIG-ROUTE-MAP Purpose Match routes with a specific tag. To configure a set condition, use any or all of the following commands in the ROUTE-MAP mode: Command Syntax set as-path prepend as-number [... as-number] set automatic-tag Command Mode CONFIG-ROUTE-MAP CONFIG-ROUTE-MAP set level {backbone | level-1 | level-1-2 | CONFIG-ROUTE-MAP level-2 | stub-area} set local-preference value CONFIG-ROUTE-MAP set metric {+ | - | metric-value} set metric-type {external | internal | type-1 | type-2} set next-hop ip-address set ipv6 next-hop ip-address set origin {egp | igp | incomplete} set tag tag-value set weight value CONFIG-ROUTE-MAP CONFIG-ROUTE-MAP CONFIG-ROUTE-MAP CONFIG-ROUTE-MAP CONFIG-ROUTE-MAP CONFIG-ROUTE-MAP CONFIG-ROUTE-MAP Purpose Add an AS-PATH number to the beginning of the AS-PATH Generate a tag to be added to redistributed routes. Specify an OSPF area or ISIS level for redistributed routes. Specify a value for the BGP route's LOCAL_PREF attribute. Specify a value for redistributed routes. Specify an OSPF or ISIS type for redistributed routes. Assign an IP address as the route's next hop. Assign an IPv6 address as the route's next hop. Assign an ORIGIN attribute. Specify a tag for the redistributed routes. Specify a value as the route's weight. 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 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. Access Control Lists (ACLs) | 141