BGP delayed route calculation is disabled by default. When you enable the
calculation, the default minimum delay, maximum delay, and message idle time are
also enabled. You can change these values. For more information, see
BGP Fast Convergence with Delayed Route Calculation.
Table 1. BEST path selection delay
| Setting |
Description |
|
min-delay
|
The minimum time that a peer spends in read-only mode and by
which the BGP-BEST path selection is delayed. The default is
180 seconds.
|
|
max-delay
|
The maximum time that a peer spends in read-only mode and by
which the BGP-BEST path selection is delayed.
|
| msg-idle-time |
The number of seconds to wait for an update from a peer
before moving the peer out of the learning phase. The
default is 2 seconds.
|
-
Access global configuration
mode.
device# configure terminal
-
Access BGP router configuration
mode.
device(config)# router bgp
-
Enable BGP delayed route
calculation.
device(config-bgp-router)# init-route-calc-delay
-
(Optional) Configure the minimum
delay in seconds.
device(config-bgp-router)# init-route-calc-delay min-delay 360
This example configures a minimum delay of
360 seconds.
-
(Optional) Configure the maximum delay in seconds.
device(config-bgp-router)# init-route-calc-delay max-delay 600
This example configures a maximum delay of
600 seconds.
-
(Optional) Configure the message
idle time in seconds.
device(config-bgp-router)# init-route-calc-delay msg-idle-time 10
This example configures a message idle time
of 10 seconds.
The following example summarizes the commands in this procedure.
device# configure terminal
device(config)# router bgp
device(config-bgp-router)# init-route-calc-delay
device(config-bgp-router)# init-route-calc-delay min-delay 360
device(config-bgp-router)# init-route-calc-delay max-delay 600
device(config-bgp-router)# init-route-calc-delay msg-idle-time 10
