Avaya Troubleshooting Routers Guía para resolver problemas descargar pdf (Pagina 249)

Using the Technician Interface to Configure and Run Packet Capture

308656-14.00 Rev 00

B-55

SDLC

The Synchronous Data Link Control (SDLC) protocol does not have a special data

link filter offset. If you configure a data link filter, set the offset to 0. The data link

filter works the same way that the MAC filter works.

An example of a hexadecimal display of an SDLC packet follows:

Pkt# 1 07/20/95 14:45:27.910 SDLC 2 Tx

00000000: d1 bf

SMDS

The switched multimegabit data service (SMDS) protocol does not have a special

data link filter offset. If you configure a data link filter, set the offset to 0. The data

link filter works the same way that the MAC filter works.

An example of a hexadecimal display of an SMDS packet follows:

Pkt# 10 04/22/98 08:09:20.211 SMDS 88 Rx

00000000: 05 03 00 00 00 87 00 4c e1 58 07 97 12 12 ff ff

00000010: c1 58 07 97 54 36 ff ff 05 03 00 00 03 00 01 00

00000020: 00 00 00 00 00 00 00 00 aa aa 03 00 80 c2 00 0e

00000030: 00 00 00 00 00 80 00 00 00 a3 00 00 0c 00 00 00

X.25

The X.25 protocol does not have a special data link filter offset. If you configure a

data link filter, set the offset to 0. The data link filter works the same way that the

MAC filter works. The X.25 protocol uses the hardware’s link layer capabilities,

which means that Packet Capture receives only the frame’s layer 3 (packet layer)

data.

An example of a hexadecimal display of an X.25 packet follows:

Pkt# 8 04/26/98 09:00:42.103 X25 47 Rx

00000000: 10 01 e2 00 00 00 00 00 01 00 00 00 00 00 02 00

00000010: 1e aa aa 03 00 00 a2 80 ff 00 00 a2 02 c9 b6 00

00000020: 00 a2 02 c9 b6 81 02 01 01 00 00 00 00 00 38 10

1 2 ... 244 245 246 247 248 249 250 251 252 253 254 ... 267 268

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Avaya Troubleshooting Routers Guía para resolver problemas Pagina 249