Avaya Troubleshooting Routers Instrukcja Naprawy Pobierz pdf (Strona 230)

Troubleshooting Routers

B-36

308656-14.00 Rev 00

Converting a Packet Capture File to Network General Sniffer

Format

You can use the Packet Convert utility to convert a Packet Capture file that you

retrieved from the router to Network General Sniffer format. This format allows

the Sniffer to use the high level of decoding available to decode the captured

packets.

The Site Manager installation software installs the Packet Convert utility on the

following platforms:

• On MS-DOS PCs, in the \wf directory. The file name is pktconv.dos.

• On Sun workstations, in the /usr/wf/bin directory. The file name is

pktconv.spc. This version runs only on SunOS.

These utilities are also available in the /perm/pkt_convert directory on the Nortel

Networks FTP file server. See Chapter 8 for file-transfer instructions.

The Network General Sniffer reads MCT1 Packet Capture files as synchronous

files.

You can convert HSSI packets only if the protocol is standard synchronous, such

as PPP. You cannot convert packets if the protocol is HPTP.

Packet Convert does not support the bisynchronous protocol.

Convert a Packet Capture file as follows:

Retrieve a copy of the file from the router.

See the following sections for instructions:

-- “Getting the Name of the Packet Capture File

” (B-32)

-- “Using FTP to Transfer the File

” (B-32), “Using TFTP to Transfer the

File” (B-33), or “Using XMODEM to Transfer the File” (B-35)

Make sure the file name does not have an extension and does not exceed 8

characters.

Note:

Before you can capture packets, you must set the size of the packets to a

value that the Sniffer supports. See “Specifying the Number of Bytes in Each

Packet to Copy” on page B-12 for instructions.

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Avaya Troubleshooting Routers Instrukcja Naprawy Strona 230