Dell N3200-ON EMC Networking N-Series Switches CLI Reference Guide version 6.7 - Page 1381

User Guidelines 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 SOO extended community attribute, whether a site is connected to a single PE router or multiple PE routers. Configuring this attribute prevents routing loops from occurring when a site is multi-homed. The SOO extended community attribute is configured on the interface and is propagated into BGP through redistribution. The SOO can be applied to routes that are learned from VRFs. The SOO should not be configured for stub sites or sites that are not multihomed Command History Introduced in version 6.3.0.1 firmware. Command updated in version 6.6 firmware. Example The following example shows how to set the extended community attribute for site of origin with route-maps on the sending BGP router. (R1)(Config)# ip extcommunity-list 10 permit (R1)(config)# route-map RECV_IN permit 10 (R1)(config-route-map)# set extcommunity soo 10:10 (R1)(config-route-map)# exit The receiving BGP router will apply the route map with an extended community list in the inward direction. show bgp ipv6 Use this command to display IPv6 routes in the BGP routing table. This command deprecates and replaces the show ipv6 bgp command. Syntax show bgp ipv6[ipv6-prefix/prefix-length [ longer-prefixes | shorter-prefixes [ length ] ] | filter-list as-path-list ] Layer 3 Routing Commands 1381