Dell PowerSwitch S5212F-ON OS10 Enterprise Edition User Guide Release 10.4.3.0 - Page 473

Supported Releases 10.3.0E or later ebgp-multihop Allows EBGP neighbors on indirectly connected networks. Syntax Parameters Default Command Mode Usage Information Example ebgp-multihop hop count hop count - Enter a value for the number of hops, from 1 to 255. 1 ROUTER-NEIGHBOR This command avoids installation of default multihop peer routes to prevent loops and creates neighbor relationships between peers. Networks indirectly connected are not valid for best path selection. The no version of this command removes multihop session. OS10(conf-router-neighbor)# ebgp-multihop 2 Supported Releases 10.3.0E or later enforce-first-as Enforces the first AS in the AS path of the route received from an EBGP peer to be the same as the configured remote AS. Syntax Parameters Default Command Mode Usage Information enforce-first-as None Enabled ROUTER-BGP To verify statistics of routes rejected, use the show ip bgp neighbors command. If routes are rejected, the session is reset. In the event of a failure, the existing BGP sessions flap. For updates received from EBGP peers, BGP ensures that the first AS of the first AS segment is always the AS of the peer, otherwise the update drops and the counter increments. The no version of this command turns off the default. NOTE: To configure these settings for a non default VRF instance, you must first enter the ROUTERCONFIG-VRF sub mode using the following commands: 1 Enter the ROUTER BGP mode using the router bgp as-number command. 2 From the ROUTER BGP mode, enter the ROUTER BGP VRF mode using the vrf vrf-name command. Example OS10(conf-router-bgp-1)# enforce-first-as Supported Releases 10.3.0E or later fall-over Enables or disables BGP session fast fall-over for BGP neighbors. Syntax fall-over Parameters None Layer 3 473