3Com Switch 8800 Configuration Guide Chapter 21 BGP Configuration21-5z Configuring application features of a BGP peer (group)z Configuring Route Filtering of a Peer (group)3) BGP route configurationz Configuring Network Routes for BGP Distributionz Configuring the Interaction Between BGP and IGPz Configuring BGP Route Summarizationz Configuring BGP Route Filteringz Configuring BGP Route Dampening4) BGP protocol configurationz Configuring BGP Preferencez Configuring BGP Timerz Configuring the Local Preferencez Configuring MED for AS5) BGP application configurationz Comparing the MED Routing Metrics from the Peers in Different ASs6) BGP networking configurationz Configuring BGP Route Reflectorz Configuring BGP AS Confederation Attribute7) Othersz Clearing BGP Connectionz Refreshing BGP Routes21.2.1 Enabling BGPTo enable BGP, local AS number should be specified. After the enabling of BGP, localrouter listens to BGP connection requests sent by adjacent routers. To make the localrouter send BGP connection requests to adjacent routers, refer to the configuration ofthe peer command. When BGP is disabled, all established BGP connections will bedisconnected.Perform the following configuration in system view.Table 21-1 Enable/Disable BGPOperation CommandEnable BGP and enter the BGP view bgp as-numberDisable BGP undo bgp [ as-number ]By default, BGP is not enabled.21.2.2 Configuring Basic Features for BGP PeerWhen configuring a MBGP peer (group), you should first configure AS ID for it and thenenter the corresponding address family view to activate the association.
