Cisco CTX2500 User Manual

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Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
78-18663-01
Chapter 2 Alarm Troubleshooting
Alarm Procedures
The TIM Path alarm occurs when the expected path trace string does not match the received path trace
string. Path Trace Mode must be set to Manual or Auto for the HP-TIM alarm to occur.
In manual mode at the Path Trace window, the user types the expected string into the Current Expected
String field for the receiving port. The string must match the string typed into the Transmit String field
for the sending port. If these fields do not match, the login node raises the HP-TIM alarm. In Auto mode
on the receiving port, the card sets the expected string to the value of the received string. If the alarm
occurs on a port that has been operating with no alarms, the circuit path has changed or someone entered
a new incorrect value into the Current Transmit String field. Complete the following procedure to clear
either instance.
Clear the HP-TIM Alarm
Step 1 Complete the “Clear the TIM Alarm” procedure on page 2-137. (The option will say “Edit J1 Path Trace”
rather than “Edit J0 Path Trace.”)
Step 2 If the alarm does not clear, log into the Technical Support Website at
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC
(1-800-553-2447). If the alarm applies to the VCTRM-HP object, it is Service-Affecting (SA).
2.7.224 RS-TIM
Default Severity: Critical (CR), Service-Affecting (SA)
SDH Logical Objects: E3, STM
The TIM for Section Overhead alarm occurs when there is a mismatch between the expected and
received J0 section overhead strings in either Manual or Auto mode.
In manual mode at a 15310-MA SDH CTX, E1-21/DS3-E3-3, or E1-63/DS3-E3-3 Section Trace
window, the user enters the expected string into the Current Expected String field for the receiving port.
The string must match the string typed into the Transmit String field for the sending port. If these fields
do not match, the login node raises the RS-TIM alarm.
In Auto mode on the receiving port, the card sets the expected string to the value of the received string.
If the alarm occurs on a port that has been operating with no alarms, the circuit path has changed or
someone entered a new incorrect value into the Current Transmit String field. Complete the following
procedure to clear either problem.
RS-TIM also occurs on a port that has previously been operating without alarms if someone switches the
cables or optical fibers that connect the ports. If enabled on the port, the “MS-AIS” condition on
page 2-20 can be raised downstream and the “MS-RFI” condition on page 2-118 can be raised upstream.
Clear the RS-TIM Alarm
Step 1 Double-click the ONS 15310-MA SDH to display the card view.
Step 2 For the 15310-MA SDH CTX, click the Maintenance > E3 > Path Trace tabs; for the ONS 15310-MA
SDH, click the Maintenance > Optical > Path Trace tabs.
Step 3 In the Expected String column, enter the correct string information.
Step 4 Click Apply.

Cisco CTX2500 Specifications

General

Brand	Cisco
Model	CTX2500
Category	Network Card
Language	English