Cisco ASR 5500 Installatiehandleiding - Pagina 26

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Using the System Diagnostic Utilities

The system provides protocol monitor and test utilities that are useful when troubleshooting or verifying

configurations. The information generated by these utilities can help identify the root cause of a software or

network configuration issue.

This section describes how to use these utilities.

Important

Only an administrator with Operator or higher privilege can run the diagnostic utilities described in this section.

Using the Monitor Utility

For troubleshooting purposes, the system provides a protocol monitoring utility. This tool displays protocol

information for a particular subscriber session or for every session being processed.

Caution

The monitor tool may cause session processing delays and/or data loss. Therefore, it should be used only

when troubleshooting.

Using the Protocol Monitor

The protocol monitor displays information for every session that is currently being processed. Depending on

the number of protocols monitored, and the number of sessions in progress, a significant amount of data is

generated. It is highly recommended that logging be enabled on your terminal client in order to capture all of

the information that is generated.

Refer also to

monitor subscriber commands.

Follow the instructions below to invoke and configure the protocol monitoring tool.

Step 1

Invoke the protocol monitor from the Exec mode by entering the monitor protocol command.

[local]host_name#

An output listing all the currently available protocols, each with an assigned number, is displayed.

Step 2

Choose the protocol that you wish to monitor by entering the associated number at the Select: prompt. A right arrow ( >

) appears next to the protocol you selected.

Step 3

Repeat step 2 as needed to choose multiple protocols.

Step 4

Press B to begin the protocol monitor.

WARNING!!! You have selected options that can DISRUPT USER SERVICE

Existing CALLS MAY BE DROPPED and/or new CALLS MAY FAIL!!!

(Under heavy call load, some debugging output may not be displayed)

Proceed? - Select (Y)es or (N)o

Step 5

Enter Y to proceed with the monitor or N to go back to the previous menu.

Troubleshooting

Packet Capture (PCAP) Trace

monitor protocol

to enable PCAP functionality for the monitor protocol and

Troubleshooting