D-Link DGS-3627G Product Manual - Page 290
BGP Aggregate Address Settings, BGP Aggregate Address Settings window
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xStack® DGS-3600 Series Layer 3 Managed Gigabit Ethernet Switch Bestpath Option State Used to enable or disable AS Path Ignore, Compare Router ID, Med Confed, MED Missing As Worst, and Compare Confed Aspath. The default is Disabled. Default Local Preference (04294967295) Enter a default local preference between 0 and 4294967295. The default value is 100. Route Identifier This field is used to set BGP router ID. An ID to identify a BGP router. If it is set to zero the router ID will be automatically determined. User must specify a unique router ID within the network. Hold Time (0-65535) The valid values are from 0 to 65535. The system will declare a peer as dead if a keepalive message is received that is more than the hold time. The default value is 180 seconds. If the holdtime is set to zero, then the holdtime will never expire. If the two routers that build a BGP connection have a different hold time, then the smaller hold time will be used. If the timer is specified for specific neighbors, then the neighbor specific timer will take effect. The hold time needs to be at least three times that of the keepalive timer. Keep Alive Time (065535) The valid values are from 0 to 65535. This specifies the interval at which keepalive messages are sent to its peer. If the keepalive value is set to zero, then the keepalive message will not be sent out. The default value is 60 seconds. If the two routers that build a BGP connection have a different keepalive timer, then the smaller keepalive timer will be used. If the timer is specified for specific neighbors, then the neighbor specific timer will take effect. Scan Timer (5-60) Enter the BGP scan timer value from 5 to 60 seconds or tick the Default check box. The default value is 60 seconds. Fast External Fallover Enable or disable fast external fallover. This configures a Border Gateway Protocol (BGP) routing process to immediately reset its external BGP peer sessions if the link used to reach these peers goes down. The default state is Enabled. Aggregate Next Hop Check Enable or disable aggregate next hop check. This is used to configure the BGP aggregated routes' next hop check. Only the routes with the same next hop attribute can be aggregated if the BGP aggregate next hop check is Enabled. The default state is Disabled. Click Apply to implement changes made. BGP Aggregate Address Settings This window is used to create an aggregate entry in the Border Gateway Protocol (BGP) database. To view this window, click L3 Features > BGP > BGP Aggregate Address Settings, as shown below: Figure 4- 134. BGP Aggregate Address Settings window To configure BGP aggregate address settings on the Switch, complete the following fields: 274