User’s Manual of IGS-20040MT
Guard timeout value to be used to prevent ring nodes from receiving outdated
R-APS messages.
Guard Time
The period of the guard timer can be configured in 10 ms steps between 10 ms
and 2 seconds, with a default value of 500 ms
WTR Time
The Wait To Restore timing value to be used in revertive switching.
The period of the WTR time can be configured by the operator in 1 minute steps
between 5 and 12 minutes with a default value of 5 minutes.
Hold Off Time
The timing value to be used to make persistent check on Signal Fail before
switching.
The range of the hold off timer is 0 to 10 seconds in steps of 100 ms
Version
ERPS Protocol Version - v1 or v2
Revertive
In Revertive mode, after the conditions causing a protection switch has cleared,
the traffic channel is restored to the working transport entity, i.e., blocked on the
RPL.
In Non-Revertive mode, the traffic channel continues to use the RPL, if it is not
failed, after a protection switch condition has cleared.
VLAN configuration of the Protection Group. Click on the "VLAN Config" link to
confure VLANs for this protection group.
VLAN Config
PRL Configuration:
Object
Description
It can be either RPL owner or RPL Neighbour.
PRL Role
This allows to select the east port or west port as the RPL block.
PRL Port
If the owner has to be changed, then the clear check box allows to clear the RPL
owner for that ERPS ring.
Clear
Instance Command:
Object
Description
Administrative command. A port can be administratively configured to be in either
manual switch or forced switch state.
Command
Port selection - Port0 or Port1 of the protection Group on which the command is
applied.
Port
352
