Service Standby - H3C MSR810 Command Reference Manual

Hardware
MSR3610-X1/3610-X1-DP/3610-X1-DC/3610-X1-DP-DC
MSR 3610/3620/3620-DP/3640/3660
MSR5620/5660/5680
This command is supported on distributed devices and IRF-capable centralized devices.
Specify traffic processing slots if a feature requires that all traffic on a dialer interface be processed
on the same slot.
For high availability, you can specify one primary and one backup traffic processing slot by using the
service command and the service standby command, respectively.
To avoid processing slot switchover, specify the primary slot before specifying the backup slot. If you
specify the backup slot before specifying the primary slot, traffic is switched over to the primary slot
immediately after you specify the primary slot.
If you specify both primary and backup slots for an interface, traffic on that interface is processed as
follows:
• The backup slot takes over when the primary slot becomes unavailable. The backup slot
continues to process traffic for the interface after the primary slot becomes available again. The
switchover will not occur until the backup slot becomes unavailable.
• When no specified traffic processing slots are available, the traffic is processed on the slot at
which it arrives. Then, the processing slot that first becomes available again takes over.
If you do not specify a primary or a backup traffic processing slot for an i nterface, traffic on that
interface is processed on the slot at which the traffic arrives.
Examples
# (Distributed devices in standalone mode.) Specify a primary traffic processing slot for Dialer 1.
<Sysname> system-view
[Sysname] interface dialer 1
[Sysname-Dialer1] service slot 2
Related commands

service standby

service standby
Use service standby to specify a backup traffic processing slot for an interface.
Use undo service standby to restore the default.
Syntax
Distributed devices in standalone mode/centralized devices in IRF mode:
service standby slot slot-number
undo service standby slot
Distributed devices in IRF mode:
service standby chassis chassis-number slot slot-number
undo service standby chassis
Default
No backup traffic processing slot is specified for an interface
Command compatibility
Yes
Yes
Yes
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