SNCP Selectors
Use the SNCP Selectors tab to change the SNCP selectors (SF-BER, SD-BER), circuit protection switches, and other SNCP circuit parameters.
 
Item
Description
Node
Name of the SNCP circuit source node.
Working Path
Slot, port, and specific VC (if applicable) of the working path.
Protect Path
Slot, port, and VC (if applicable) of the protect path.
Revert Time
If Revertive is checked, sets the amount of time that will elapse before traffic reverts to the working path. The range is 0.5 to 12 minutes in 0.5 minute increments.
Switch State
Allows you to apply a traffic switch to the circuit. Valid entries are:
LOCKOUT OF PROTECT—Applies a LOCKOUT to prevent traffic from switching to the protect path.
FORCE TO WORKING—Applies a FORCE switch to move traffic to the working path.
FORCE TO PROTECT—Applies a FORCE switch to move traffic to the protect path.
MANUAL TO WORKING—Applies a MANUAL switch to move traffic to the working path.
MANUAL TO PROTECT—Applies a MANUAL switch to move traffic to the protect path.
Hold-Off Timer
Sets the amount of time a path selector switch is delayed for circuits routed on an SNCP DRI topology. In DRIs, switching contention might occur depending upon the relative switching speed of the path selector and the transmission delay on the alternative routes. The hold-off time (HOT) allows you to change switch times to prevent the switching contention.
SF Ber Level
(VC4 circuits only) Sets the SNCP signal failure BER threshold.
SD Ber Level
(VC4 circuits only) Sets the SNCP signal degrade BER threshold.
Show Detailed Map
If checked, changes the circuit view in the graphic area to show circuit routing information, including source slot, port, and VC. The detailed view also shows working and protect circuit paths.
Show VC LO Topology
(ONS 15454 SDH only) If checked, displays any low-order path tunnels that carry the low-order path circuit. If the circuit is not carried by a low-order path tunnel, no changes appear when the box is checked.
Show WDM Topology
(ONS 15454 SDH only) If checked, hides the TXP and MXP connections where high-order and low-order circuits are routed, showing only the logical STM-N links. This check box is available only when circuits are routed on TXP or MXP cards provisioned in section or line mode.
Apply
Applies any edits made to the SNCP selectors tab.
Reset
Removes any edits made to the SNCP selectors tab.
Help
Displays CTC context-sensitive help.

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