• cyclic. Circular buffer that overwrites the oldest records when it is filled up. Use
a cyclic buffer to store the most recent history of packet activity.
• non-cyclic. Linear buffer that is used until it is filled up
For example:
Gxxx-001(super)# capture buffer-mode cyclic
Done!
Gxxx-001(super)#
2. Use the
capture buffer-size
command to specify the maximum size of the
capture buffer.
Available values are 56 to 10000 kb. The default value is 1000. To activate the
change in buffer size, enter
copy running-config startup-config
, and
reboot the Branch Gateway.
For example:
Gxxx-001(super)# capture buffer-size 2000
To change capture buffer size, copy the running
configuration to the start-up configuration file, and reset the device.
Gxxx-001(super)# copy running-config startup-config
Beginning copy operation .................... Done!
Gxxx-001(super)#
3. Use the
capture max-frame-size
command to specify the maximum number
of bytes captured for each packet.
This is useful, since in most cases, the packet headers contain the relevant
information. Available values are 14 to 4096. The default value is 128.
For example:
Gxxx-001(super)# capture max-frame-size 4000
This command will clear the capture buffer
- do you want to continue (Y/N)? y
Done!
Gxxx-001(super)#
Note:
When you change the maximum frame size, the Branch Gateway clears the
capture buffer.
4. Enter
clear capture-buffer
to clear the capture buffer.
Tip:
To reduce the size of the capture file, use any combination of the following
methods:
• Use the
capture interface
command to capture only from a specific
interface.
• Use the
capture max-frame-size
to capture only the first N octets of each
frame. This is valuable since it is usually the packets headers that contain the
interesting information.
Monitoring applications
394 Administering Avaya G430 Branch Gateway
October 2013
Summary of Contents for G430
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