Avaya Troubleshooting Routers Instrukcja Naprawy Pobierz pdf (Strona 215)

Using the Technician Interface to Configure and Run Packet Capture

308656-14.00 Rev 00

B-21

Assigning Filters

Read this section if you want to specify a string of alphanumeric characters to

compare with the packet data.

When Packet Capture matches packet data to the string, it either copies the packet

to the Packet Capture file or it terminates without copying the packet. Packet

Capture supports two filters for incoming packets and two filters for outgoing

packets.

The Packet Capture filter names are as follows:

• Receive Filter 1 matches incoming packet data to a string you specify.

• Receive Filter 2 matches incoming packet data to a second string you specify.

• Transmit Filter 1 matches outgoing packet data to a string you specify.

• Transmit Filter 2 matches outgoing packet data to a second string you specify.

Each filter has its own set of parameters. They are as follows:

•Type

Determines whether Packet Capture terminates when it finds a match, copies a

packet when it matches it to the string, or copies every packet on a circuit.

• Match

The hexadecimal number or string of characters that Packet Capture uses to

compare to the data in a packet.

• Reference, Offset, and Size

The data in the packet to compare with the string. Reference identifies the

field of the packet. Offset determines the number of bytes after the Reference

with which to begin the comparison. Size determines the number of bytes to

compare to the string.

Packet Capture also supports one Group parameter for each packet direction. The

Group parameter allows you to specify whether the packet must match both

Filter 1 and Filter 2 in order for Packet Capture to copy it. Refer to the following

sections to set the parameters for each filter.

Note:

To avoid confusion, configure all of the parameter settings for one filter

before going to the next. For example, configure all of the Receive Filter 1

parameters before configuring the Receive Filter 2 parameters.

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Avaya Troubleshooting Routers Instrukcja Naprawy Strona 215