Tools
421
Managed Switches
Full Memory Dump
The full memory dump feature provides the ability to retrieve the state of a crashed system
and load it into a debugger to recreate the crashed state. This capability is useful when the
switch encounters a crash.
The following example shows how to enable this feature and dump the information from a
switch.
1. Select the way to transfer the exception dump.
You can select NFS, TFTP, or USB. If you select NFS, you need an NFS share mount
point on the network. Similarly, for TFTP mode, you need a TFTP server on the network.
For USB mode, you need a USB sticker plugged into the USB slot on the front panel.
2. Configure the IP address for the NFS or TFTP server.
3. Change the name of the dump file.
The file name is formed as follows:
• If hostname is selected: file-name-prefix_hostname_Time_Stamp.bin
• If hostname is not selected:
file-name-prefix_MAC_Address_Time_Stamp.bin
By default, the file name is core, but you can change it with the following command:
4. (Optional) Enable the switch-chip-register.
This dumps the register value in the chipset.
(Netgear Switch) (Config) #exception protocol tftp
(Netgear Switch) (Config) #exception dump tftp-server 172.26.2.100
(Netgear Switch) (Config) #exception core-file mydump
(Netgear Switch) (Config) #exception switch-chip-register enable
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