Ms-Spring Vc4/Vc3 Squelch Table; Section And Path Trace; Table 7-6 Ons 15600 Sdh Cards Supporting J1 Path Trace - Cisco ONS 15600 Reference Manual

Chapter 7 Circuits and Tunnels

7.8 MS-SPRing VC4/VC3 Squelch Table

The ONS 15600 SDH platform does not support low-order path squelching; however, when an
ONS 15454 SDH and an ONS 15600 SDH are in the same network, the ONS 15600 SDH node allows
the ONS 15454 SDH node to carry low-order path circuits in a VC_LO_PATH_TUNNEL. The
ONS 15600 SDH performs 100-ms VC4-level squelching for each low-order-access VC at the switching
node in case of a node failure.
•
•
•
•
•
•
•
•
MS-SPRing squelching is performed on VC4s that carry VC4 circuits only or on VC3s that carry VC3
Note
circuits only.

7.9 Section and Path Trace

SDH J0 section and J1 path trace are repeated, fixed-length strings used to monitor interruptions or
changes to circuit traffic. J0 section trace inlcludes 1 or 16 consecutive J0 bytes. All ONS 15600 SDH
optical cards and ports support J0 path trace. J1 path trace includes 16 consecutive J1 bytes. If the string
received at a circuit drop port does not match the string the port expects to receive, the Trace Identifier
Mismatch Path (TIM-P) alarm is raised.
Table 7-6
Table 7-6
Card
OC48/STM16 SR/SH 16 Port 1310
OC48/STM16 LR/LH 16 Port 1550
OC192/STM64 SR/SH 4 Port 1310
OC192/STM64 LR/LH 4 Port 1550
OC192LR/STM64 4 Port ITU C-Band
78-18400-01
SDH-AU4—Displays all circuits with SDH-AU4 format (VC4 or VC4-nc high-order circuits). For
example, if "Circuit1" is a high-order VC4 circuit using ring bandwidth VC4-2c, then "Circuit1"
appears in the SDH-AU4 pane in the column "vc4=2."
SDH-AU3—Displays all circuits with SDH-AU3 format (VC3 high-order circuits).
VC4/VC3 Number—The SDH-AU4 pane shows VC4 number only, and the SDH-AU3 pane shows
VC3 number only.
West Source—If traffic is received by the node on its west span, the MS-SPRing node ID of the
source appears. (To view the MS-SPRing node IDs for all nodes in the ring, click the Ring Map
button.)
West Dest—If traffic is sent on the node's west span, the MS-SPRing node ID of the destination
appears.
East Source—If traffic is received by the node on its east span, the MS-SPRing node ID of the source
appears.
East Dest—If traffic is sent on the node's east span, the MS-SPRing node ID of the destination
appears.
Retrieve—Retrieves the most current squelch table display.
lists the ONS 15600 SDH cards that support J1 path trace.
ONS 15600 SDH Cards Supporting J1 Path Trace

7.8 MS-SPRing VC4/VC3 Squelch Table

Receive Transmit
Yes No
Yes No
Yes No
Yes No
Yes No
Cisco ONS 15600 SDH Reference Manual, Release 9.0
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