3Com Switch 4800G 24-Port - Page 389

Tuning and Optimizing BGP Networks 389
Prerequisites Before configuring this task, you have configured BGP basic functions
Configuration Procedure Follow these steps to tune and optimize BGP networks:
To do… Use the command… Remarks
Enter system view system-view -
Enter BGP view bgp as-number -
Configure BGP
timers
Configure
keepalive
interval and
holdtime
timer keepalive
keepalive hold holdtime
Optional
The keepalive interval
defaults to 60 seconds,
holdtime defaults to 180
seconds. Configure
keepalive
interval and
holdtime for a
peer/peer group
peer { group-name |
ip-address } timer
keepalive keepalive hold
holdtime
Configure the interval for sending
the same update to a peer/peer
group
peer { group-name |
ip-address }
route-update-interval
seconds
Optional
The intervals for sending the
same update to an IBGP peer
and an EBGP peer default to
15 seconds and 30 seconds
respectively.
Configure BGP
soft reset
Disable BGP
route-refresh
and
multi-protocol
extensions for a
peer/peer group
peer { group-name |
ip-address }
capability-advertise
conventional
Optional
Enabled by default
Enable BGP
route refresh for
a peer/peer
group
peer { group-name |
ip-address }
capability-advertise
route-refresh
Optional
Enabled by default
Keep all original
routes from a
peer/peer group
regardless of
whether they
pass the
inbound filtering
policy
peer {
group-name |
ip-address }
keep-all-routes
Optional
Not kept by default
Return to user
view
return -
Perform manual
soft reset on
BGP connections
refresh bgp { all |
ip-address | group
group-name | external |
internal } { export |
import }
Required
Enter system
view
system-view -
Enter BGP view bgp as-number -
Enable the clearing of the direct
EBGP session on any interface that
becomes down
ebgp-interface-sensitiv
e
Optional
Enabled by default
Enable MD5 authentication when
establishing a TCP connection to
the peer/peer group
peer { group-name |
ip-address } password
{ cipher | simple }
password
Optional
Enabled by default