Digisol DG-FS4526E, Руководство по управлению

Страница: 880 / 1162

C
HAPTER
34 | ERPS Commands
– 880 –
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)#
meg-level
This command sets the Maintenance Entity Group level for a ring. Use the
no form to restore the default setting.
S
YNTAX
meg-level level
level - The maintenance entity group (MEG) level which provides a
communication channel for ring automatic protection switching
(R-APS) information. (Range: 0-7)
D
EFAULT
S
ETTING
1
C
OMMAND
M
ODE
ERPS Configuration
C
OMMAND
U
SAGE
This parameter is used to ensure that received R-APS PDUs are directed for
this ring. A unique level should be configured for each local ring if there are
many R-APS PDUs passing through this switch.
E
XAMPLE
Console(config-erps)#meg-level 00-17-7C-61-24-2D
Console(config-erps)#