Timer (Bgp/Bgp-Vpn Instance View) - 3Com S7906E Command Reference Manual

Default Level
2: System level
Parameters
None
Description
Use the synchronization command to enable the synchronization between the BGP and IGP routes.
Use the undo synchronization command to disable the synchronization.
The feature is disabled by default.
With this feature enabled and when a non-BGP router is responsible for forwarding packets in an AS,
BGP speakers in the AS cannot advertise routing information to other ASs unless all routers in the AS
know the latest routing information.
When a BGP router receives an IBGP route, it checks only whether the next hop is reachable by default.
If the synchronization is enabled, the IBGP route is synchronized and advertised to EBGP peers only
when the route is also advertised by IGP. Otherwise, the IBGP route cannot be advertised to EBGP
peers.
Examples
# Enable the synchronization between BGP and IGP routes.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] synchronization

timer (BGP/BGP-VPN instance view)

Syntax
timer keepalive keepalive hold holdtime
undo timer
View
BGP view/BGP-VPN instance view
Default Level
2: System level
Parameters
keepalive: Keepalive interval in seconds, ranging from 1 to 21845.
holdtime: Holdtime interval in seconds, ranging from 3 to 65535.
Description
Use the timer command to configure BGP keepalive interval and holdtime interval.
Use the undo timer command to restore the default.
By default, BGP keepalive and holdtime intervals are 60s and 180s.
Note that:
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