LevelOne GTL-2691 - Manual (Page 1094)

C HAPTER 38 | ERPS Commands
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C OMMAND U SAGE
The guard timer duration should be greater than the maximum expected
forwarding delay for an R-APS message to pass around the ring. A side-
effect of the guard timer is that during its duration, a node will be unaware
of new or existing ring requests transmitted from other nodes.
E XAMPLE
Console(config-erps)#guard-timer 300
Console(config-erps)#
holdoff-timer This command sets the timer to filter out intermittent link faults. Use the
no form to restore the default setting.
S YNTAX
holdoff-timer milliseconds
milliseconds - The hold-off timer is used to filter out intermittent
link faults. Faults will only be reported to the ring protection
mechanism if this timer expires. (Range: 0-10000 milliseconds, in
steps of 100 milliseconds)
D EFAULT S ETTING
0 milliseconds
C OMMAND M ODE
ERPS Configuration
C OMMAND U SAGE
In order to coordinate timing of protection switches at multiple layers, a
hold-off timer may be required. Its purpose is to allow, for example, a
server layer protection switch to have a chance to fix the problem before
switching at a client layer.
When a new defect or more severe defect occurs (new Signal Failure), this
event will not be reported immediately to the protection switching
mechanism if the provisioned hold-off timer value is non-zero. Instead, the
hold-off timer will be started. When the timer expires, whether a defect still
exists or not, the timer will be checked. If one does exist, that defect will
be reported to the protection switching mechanism. The reported defect
need not be the same one that started the timer.
E XAMPLE
Console(config-erps)#holdoff-timer 300
Console(config-erps)#