H3C Technologies H3C SecBlade LB Cards - Manual (Page 160)

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Step Command Remarks
3. Configure the available bandwidth
used for setting the thresholds.
standby bandwidth size
Optional.
0 kbps by default.
4. Configure load balancing
thresholds. standby threshold enable-threshold
disable-threshold
No load balancing
thresholds are
configured by default.
5. Configure the interval for detecting
traffic size on the active interface.
standby timer flow-check interval
Optional.
30 seconds by
default.
Configuring the delay timer for the backup function
to take effect on system startup
Generally, H3C recommends using the default settings. If you set a too short timer, the standby interfaces
will be activated and deactivated in a short time on system startup; if you set a too long timer, when the
active interface fails, the standby interfaces take too long time to take effect on system startup.
This feature takes effect on all the standby interfaces working in active/standby mode, but does not take
effect on the standby interfaces working in load balancing mode.
The device restores its configuration when starting up. If the device is configured with the backup function,
during the configuration restoration process, the system enables the delay timer for the backup function
to take effect on system startup, because the status of all the interfaces is down. If the delay timer times
out, but the active interface is not up (because the cables are not well connected, or parameter
negotiation is being performed), the system will activate a standby interface to start interface backup.
When the active interface is up, the system will disable the standby interface, and set its status to down.
To avoid activation and deactivation (up and down) of the standby interfaces in a short time on system
startup, you can modify the delay timer for the backup function to take effect on system startup, so that the
standby interfaces will be activated only when the delay timer times out and the active interface is not up.
To set the delay timer for the backup function to take effect on system startup:
Step Command Remarks
1. Enter system view. system-view N/A
2. Set the delay timer for the
backup function to take
effect on system startup.
standby timer startup seconds
Optional.
30 seconds by default.
Displaying and maintaining interface backup
Task Command Remarks
Display statistics about the traffic
on the active interfaces enabled
with load balancing.
display standby flow [ | { begin | exclude
| include } regular-expression ]
Available in any view.