Avaya Troubleshooting Routers Guide de dépannage télécharger pdf (Page 207)

Using the Technician Interface to Configure and Run Packet Capture

B-19

Example

Enter the following command if you conﬁgured the Packet Capture instance

associated with Logical Line No. 102101 to copy only incoming packets and you

want it to terminate itself when it matches packet data to the Filter 2 Match

parameter:

set wfPktCaptureEntry.12.102101 3;commit

Assigning Filters

Use 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 ﬁlter names are:

• 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 within 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.

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Avaya Troubleshooting Routers Guide de dépannage Page 207