D-Link DGS-3630-52TC User Manual - Page 187

DGS-3630 Layer 3 Stackable Managed Switch CLI Reference Guide Command Mode Router Configuration Mode. Command Default Level Level: 12. Usage Guideline The local preference number is used to control the preferred exit point from the local AS to the same destination network. The local preference will be sent with the route advertised to the iBGP peers. If an external route is both reachable via the local router and an iBGP peer router, the local preference value determines the preferred exit point to reach the external route. Use the bgp default local-preference command to specify the default local preference to be associated with the routes received by the router from external BGP peers. Example This example shows how to configure the default local preference of the router to be 200. Switch# configure terminal Switch(config)# router bgp 65534 Switch(config-router)# bgp default local-preference 200 13-20 bgp deterministic-med (MI and EI Mode Only) This command is used to include the Multi Exit Discriminator (MED) value between all paths received from within the same autonomous system in the selection of the best route selection. Use the no form of this command to prevent BGP from considering the MED attribute in comparing paths. bgp deterministic-med no bgp deterministic-med Parameters None. Default By default, this option is disabled. Command Mode Router Configuration Mode. Command Default Level Level: 12. Usage Guideline All routers in a local AS must have the same setting of this command. When the bgp always-compare-med command is enabled, the Multi Exit Discriminator (MED) will be compared for paths from neighbors in different autonomous systems. When the bgp deterministic-med command is enabled, all paths destined for the same network that are received from neighbors in the same autonomous system , will be grouped together and sorted based on the ascending MED value. The sorting is performed right after the command is entered. The best path selection algorithm will then pick the best paths using the existing rules; the comparison is made on a per-neighbor autonomous system basis and then global basis. 182