Netscout OneTouch AT 10G, User Manual

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OneTouch AT 10G
User Manual
202
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You can create a wired packet capture filter to capture only
packets that are going to and from a particular server or
client.
Filters Perform a Logical AND Operation
When you set more than one filter, a logical AND operation is
performed using the filters that you select.
For example, if you enter an IP address filter of 10.250.0.70 and a
port filter of 80, only packets that are going to and from port 80
and to or from 10.250.0.70 will be captured. See Figure 74.
Figure 74. Capture Filters - Logical AND Operation
Packet Capture Speed and Dropped Frames
Note
The terms “packet” and “frame” are used
interchangeably herein, though a frame is actually an
encapsulated packet.
Capture performance is a function of frame size and the burst
characteristics of the signal, coupled with SD card write speed.
- Set of all frames going across the link, unfiltered -
10.250.0.70
IP Filter =
Only
frames going
to and from
10.250.0.70
on Port 80
are captured
Port Filter =
80