7-8
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 7 Manage Circuits
NTP- D79 Create a J1 or J2 Path Trace
NTP-D79 Create a J1 or J2 Path Trace
Note There are two types of J1 bytes, high-order (HO-J1) and low-order (LO-J1). The electrical cards support
LO-J1 (VC3). The optical cards support HO-J1 (VC4) and cannot monitor the LO-J1 byte. In addition,
the E1-42 card supports HO-J1 when the card is provisioned as an HO circuit endpoint.
Note J1 path trace is available for VC3 and VC4 circuits. In ONS 15454 SDH Software R3.4 and earlier, you
can set the VC3 J1 transmit string on E3 and DS3i-N-12 cards, but VC3 is not monitored by STM-N
cards. J2 path trace is available for VC12 circuits.
Step 1 Complete the “DLP-D60 Log into CTC” task on page 17-49 at a node on the network where you will
create the path trace. If you are already logged in, continue with Step 2.
Step 2 Complete the following tasks as needed:
• As needed, complete the “DLP-D264 Provision a J1 Path Trace on Circuit Source and Destination
Ports” task on page 19-68.
• As needed, complete the “DLP-D137 Provision a J1 Path Trace on STM-N Ports” task on
page 18-31.
• As needed, complete the “DLP-D367 Provision a J2 Path Trace on Circuit Source and Destination
Ports” task on page 20-72.
Stop. You have completed this procedure.
Purpose This procedure creates a repeated, fixed-length string of characters used to
monitor changes to circuit traffic.
Tools/Equipment ONS 15454 SDH cards capable of transmitting and/or receiving path trace
must be installed. See Table 19-5 on page 19-68 for a list of J1 path trace
cards. See Table 20-30 on page 20-73 for a list of J2 path trace cards.
Prerequisite Procedures J1 path trace can be provisioned on VC3 and VC4 circuits. J2 path trace
can be provisioned on VC12 circuits. See Chapter 6, “Create Circuits and
Low-Order Tunnels,” for circuit creation procedures.
Required/As Needed As needed
Onsite/Remote Onsite or remote
Security Level Provisioning or higher
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