Dell N3200-ON Networking N-Series Switches CLI Reference Guide version 6.8.0 - Page 1343

- 32-bit AS number: a 32-bit value (Ex: 65527:60110) Default Configuration No subnets are associated with a BGP listen subnet range, and the BGP dynamic neighbor feature is not activated. Command Mode Global Config mode User Guidelines This command is used to configure numbered extended community lists. Extended community attributes are used to filter routes for VRFs. All the standard rules of access lists apply to the configuration of extended community lists. The route target (RT) and site of origin (SOO) extended community attributes are supported by the standard range of extended community lists. Once the first permit/deny clause has been entered for a community list, subsequent permit/deny clauses with the same list identifier are appended to the end of the list. Expanded community list and regular expressions are not supported. Route Target Extended Community Attribute The route target (RT) extended communities attribute is configured with the rt keyword. This attribute is used to identify a set of sites and VRFs that may receive routes that are tagged with the configured route target. Configuring the route target extended attribute with a route allows that route to be placed in the per-site forwarding tables that are used for routing traffic that is received from corresponding sites. Site of Origin Extended Community Attribute The site of origin (SOO) extended communities attribute is configured with the soo keyword. This attribute uniquely identifies the site from which the provider edge (PE) router learned the route. All routes learned from a particular site must be assigned the same site of origin extended community attribute, regardless if a site is connected to a single PE router or multiple PE routers. Configuring this attribute prevents routing loops from occurring Layer 3 Routing Commands 1343