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Using the Technician Interface to Configure and Run Packet Capture

308656-14.00 Rev 00

B-51

Parameter: Group

Packet Capture supports two Group parameters: one for incoming packets

and one for outgoing packets.

Default: 1 (OR)

Options: 1 (OR)

2 (AND)

Function: Determines whether Packet Capture copies a packet if it matches either

filter or both filters. Packet Capture uses this parameter only if you

configure both capture filters associated with a single direction.

Instructions: Use one of the following settings for each packet direction:

• 1 if you want Packet Capture to copy a packet if it matches either

filter 1 or filter 2

• 2 if you want Packet Capture to copy a packet only if it matches both

filter 1 and filter 2

Media-Specific Instructions and Examples

The following sections provide instructions and show examples of packets with

different media types. They assume that you set the number of bytes to copy from

each packet to 64 by setting the wfPktCapturePktSize (wfPktCaptureEntry.9) to 2.

Each example uses the

pktdump

command to show a hexadecimal decoding of a

frame or packet.

CSMA/CD

The CSMA/CD (Ethernet) physical medium has a data link filter offset of 14 bytes

from the beginning of the MAC header. This places the data link filter point at the

first byte after the TYPE/LENGTH field. Outgoing packets may contain less than

60 bytes each because they go to Packet Capture without padding.

Packet

Direction MIB Attribute Name MIB Object ID

Attribute

No.

Incoming wfPktCaptureRxFltr2Group 1.3.6.1.4.1.18.3.4.21.1.1.29 29

Outgoing wfPktCaptureTxFltr2Group 1.3.6.1.4.1.18.3.4.21.1.1.35 35

1 2 ... 240 241 242 243 244 245 246 247 248 249 250 ... 267 268

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Avaya Troubleshooting Routers Guía para resolver problemas Pagina 245