Cisco 15310-MA Průvodce řešením problémů stáhnout pdf (Strana 266)

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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, Release 9.0

78-18394-01

Chapter 2 Alarm Troubleshooting

Alarm Procedures

An SF-V condition is similar to the “SF” condition on page 2-134, but it applies to the VT layer of the

SONET overhead.

Clear the SF-V Condition

Step 1 Complete the “Clear the SD-L Condition” procedure on page 2-132.

Step 2 If the condition does not clear, log into the Technical Support Website at

http://www.cisco.com/techsupport for more information or call Cisco TAC (1-800-553-2447).

2.7.216 SHELF-COMM-FAIL

For information about this alarm or condition, refer to the “Alarm Troubleshooting” chapter in the

Cisco ONS 15454 DWDM Troubleshooting Guide. That guide discusses all DWDM alarms.

2.7.217 SNTP-HOST

Default Severity: Minor (MN), Non-Service-Affecting (NSA)

SONET Logical Object: NE

The Simple Network Timing Protocol (SNTP) Host Failure alarm indicates that an ONS 15310-CL or

ONS 15310-MA serving as an IP proxy for the other nodes in the ring is not forwarding SNTP

information to the other nodes in the network. The forwarding failure can result from two causes: either

the IP network attached to the ONS proxy node is experiencing problems, or the ONS proxy node itself

is not functioning properly.

Clear the SNTP-HOST Alarm

Step 1 Ping the SNTP host from a workstation in the same subnet to ensure that communication is possible

within the subnet by completing the procedure in the “1.9.8 Verify Microsoft Windows PC Connection

to the Node (Ping)” section on page 1-68.

Step 2 If the ping fails, contact the network administrator who manages the IP network that supplies the SNTP

information to the proxy and determine whether the network is experiencing problems which could

affect the SNTP server/router connecting to the proxy ONS system.

Step 3 If no network problems exist, ensure that the ONS 15310-CL or ONS 15310-MA proxy is provisioned

correctly by completing the following steps:

a. In node view for the node serving as the proxy, click the Provisioning > General tabs.

b. Ensure that the Use NTP/SNTP Server check box is checked.

c. If the Use NTP/SNTP Server check box is not checked, click it.

d. Ensure that the Use NTP/SNTP Server field contains a valid IP address for the server.

Step 4 If proxy is correctly provisioned, refer to the “Cisco Transport Controller Operation” chapter in the

Cisco ONS 15310-CL and Cisco ONS 15310-MA Reference Manual for more information on SNTP Host

for general information about working with SNTP. Refer to the “Turn Up Node” chapter in the

Cisco ONS 15310-CL and Cisco ONS 15310-MA Procedure Guide.

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