D-Link DGS-3630-52TC Quick installation Guide - Page 367

BGP Aggregate Address Settings, Aggregate Next Hop Check

Page 367 highlights

DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide Parameter Fast External Failover Aggregate Next Hop Check Default IPv4 Unicast Graceful Restart State Restart Time Stalepath Time Description preferred. Select to enable or disable the fast external failover feature here. This is used to globally enable or disable the fast external failover of BGP sessions for the directly connected external peers. When enabled, the session is immediately reset if the link goes down. When disabled, the session will not be reset until the default hold timer expires. Select to enable or disable the aggregate next hop check feature here. This is used to enable the checking of next hop of the BGP aggregated routes. Only the routes with the same next hop attribute can be aggregated if the BGP aggregate next hop check is enabled. Select to enable or disable the default IPv4 unicast feature here. This is used to enable the exchange of IPv4 unicast routing information. Select to enable or disable the BGP graceful restart capabilities for all BGP neighbors here. When graceful restart is enabled, enter the restart time here. This specifies the maximum time needed for neighbors to restart. The range is from 1 to 3600 seconds. When graceful restart is enabled, enter the stale-path time here. This specifies the maximum time to retain stale paths from restarting neighbors. The range is from 1 to 3600 seconds. Click the Apply button to accept the changes made. The fields that can be configured in BGP Trap Settings are described below: Parameter Description Peer Established Trap State Select to enable or disable the BGP peer established trap state here. Peer Backward-Trans Trap Select to enable or disable the sending of the peer idle trap here. State Click the Apply button to accept the changes made. BGP Aggregate Address Settings This window is used to display and configure the BGP aggregate address settings. Route aggregation is a mechanism used to reduce the number of routing entries. The aggregated route will be created in the routing table if there is any more specific route entry than the aggregated route, and the characteristic of the aggregated route is the combined characteristic of those more specific routes. The aggregated route is sent as coming from the local AS. The atomic aggregation flag is set to indicate that the AS path information of those more specific route information might be lost from the aggregated entry. 355

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DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide
355
Parameter
Description
preferred.
Fast External Failover
Select to enable or disable the fast external failover feature here. This is used to
globally enable or disable the fast external failover of BGP sessions for the
directly connected external peers. When enabled, the session is immediately
reset if the link goes down. When disabled, the session will not be reset until the
default hold timer expires.
Aggregate Next Hop Check
Select to enable or disable the aggregate next hop check feature here. This is
used to enable the checking of next hop of the BGP aggregated routes. Only the
routes with the same next hop attribute can be aggregated if the BGP aggregate
next hop check is enabled.
Default IPv4 Unicast
Select to enable or disable the default IPv4 unicast feature here. This is used to
enable the exchange of IPv4 unicast routing information.
Graceful Restart State
Select to enable or disable the BGP graceful restart capabilities for all BGP
neighbors here.
Restart Time
When graceful restart is enabled, enter the restart time here. This specifies the
maximum time needed for neighbors to restart. The range is from 1 to 3600
seconds.
Stalepath Time
When graceful restart is enabled, enter the stale-path time here. This specifies the
maximum time to retain stale paths from restarting neighbors. The range is from 1
to 3600 seconds.
Click the
Apply
button to accept the changes made.
The fields that can be configured in
BGP Trap Settings
are described below:
Parameter
Description
Peer Established Trap State
Select to enable or disable the BGP peer established trap state here.
Peer Backward-Trans Trap
State
Select to enable or disable the sending of the peer idle trap here.
Click the
Apply
button to accept the changes made.
BGP Aggregate Address Settings
This window is used to display and configure the BGP aggregate address settings. Route aggregation is a mechanism
used to reduce the number of routing entries. The aggregated route will be created in the routing table if there is any
more specific route entry than the aggregated route, and the characteristic of the aggregated route is the combined
characteristic of those more specific routes. The aggregated route is sent as coming from the local AS. The atomic
aggregation flag is set to indicate that the AS path information of those more specific route information might be lost
from the aggregated entry.