Operation Manual – IPv4 RoutingH3C S5500-EI Series Ethernet Switches Chapter 6 Routing Policy Configuration6-6Follow these steps to define an extended community list:To do… Use the command… RemarksEnter system view system-view —Define an extendedcommunity listip extcommunity-listext-comm-list-number { deny | permit }{ rt route-target }&<1-16>RequiredNot defined bydefault6.4 Configuring a Routing PolicyA routing policy is used to filter routing information according to some attributes, andmodify some attributes of the routing information that matches the routing policy. Matchcriteria can be configured using filters above mentioned.A routing policy can comprise multiple nodes, each node contains:z if-match clauses: Define the match criteria that routing information must satisfy.The matching objects are some attributes of routing information.z apply clauses: Specify the actions performed after specified match criteria aresatisfied, concerning attribute settings for passed routing information.6.4.1 PrerequisitesBefore configuring this task, you have completed:z Filtering list configurationz Routing protocol configurationYou also need to decide on:z Name of the routing policy, node sequence numbersz Match criteriaz Attributes to be modified6.4.2 Creating a Routing PolicyFollow these steps to create a routing policy:To do… Use the command… RemarksEnter system view system-view —Create a routing policyand enter its viewroute-policy route-policy-name{ permit | deny } nodenode-numberRequired
