400
Views
BGP view, BGP-VPN instance view
Predefined user roles
network-admin
Parameters
keepalive keepalive: Configures a keepalive interval in the range of 0 to 21845 seconds.
hold holdtime: Configures a holdtime in seconds, whose value is 0 or in the range of 3 to 65535.
Usage guidelines
After establishing a BGP session, two routers send keepalive messages at the specified keepalive interval
to each other to keep the session.
If a router receives no keepalive or update message from the peer within the holdtime, it tears down the
session.
Use the timer command to configure the keepalive interval and holdtime for all BGP peers. Use the peer
timer command to configure the keepalive interval and holdtime for a peer or peer group. If both
commands are configured, the intervals configured by the peer timer command have higher priority.
If the holdtime settings on the local and peer routers are different, the smaller one is used.
If the holdtime is configured as 0, no keepalive message will be sent to the peer, and the peer session will
never time out. If the keepalive interval is configured as 0 and the negotiated holdtime is not 0, one third
of the holdtime is taken as the interval for sending keepalive messages. If neither the holdtime nor the
keepalive interval is configured as 0, the actual keepalive interval is the smaller one between one third
of the holdtime and the keepalive interval.
The timer command takes effect for only new BGP sessions.
After the timer command is executed, no peer session is closed at once. The configured holdtime is used
for negotiation in session reestablishment (for example, when you reset the BGP session).
Examples
# In BGP view, configure the keepalive interval and holdtime as 60s and 180s.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] timer keepalive 60 hold 180
# In BGP-VPN instance view, configure the keepalive interval and holdtime as 60s and 180s.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ip vpn-instance vpn1
[Sysname-bgp-vpn1] timer keepalive 60 hold 180
# In BGP view, configure both the keepalive interval and holdtime as 0 seconds, indicating the sessions
will never time out.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] timer keepalive 0 hold 0
# In BGP-VPN instance view, configure both the keepalive interval and holdtime as 0 seconds for BGP
sessions in vpn1, indicating the sessions will never time out.
<Sysname> system-view
To Next Page
Loading...
Need help?
General
