CISCO 2960G Questions

[mestrickland325]

As a novice, I have come upon some questions regarding the 2960G that readily available:

What type of memory is available on the 2960G, 24port?

Besides the configuration file, what other permanent data is stored on the 2960G?

If the power supply fails, what data is retained on the 2960G?

If the power supply fails, are any routing tables or IP addresses retained on the 2960G?

Assuming the 2960G was connected to a sensitive network would there be any sensitive material retained upon loss of power?

Thank you for your patience,

Mike

[Jose Solano]

Hi

Normally this switches will have 32MB of Flash memory and 64MB of DRAM. Below you can see a summary of what is store on each and what happens if the switch is power off.

RAM, also called dynamic RAM (DRAM), has the following characteristics and functions:

• Stores routing tables
• Holds ARP cache
• Holds fast-switching cache
• Performs packet buffering (shared RAM)
• Maintains packet-hold queues
• Provides temporary memory for the configuration file of the switch while is powered on
• Loses content when switch is powered down or restarted

NVRAM has the following characteristics and functions:

• Provides storage for the startup configuration file
• Retains content when switch is powered down or restarted

Flash memory has the following characteristics and functions:

• Holds the operating system image (IOS)
• Retains content when switch is powered down or restarted

Hope this helps.

[mestrickland325]

Thank you for your time!

v/r

Mike

[mestrickland325]

Leo...what single command will give a complete status and configuration of the 2960G/24?

Respects,

Mike

[Jose Solano]

Hi,

With the show run command you should be able to see all the configuration that has been saved into the switch. Configuration changes that have not been saved will not appear there until you save them.

Regards,

[paul driver]

Hello

What type of memory is available on the 2960G, 24port? - probably 32 flash/128mb Dram this can be verified by typing  SHOW VER on the switch.

Besides the configuration file, what other permanent data is stored on the 2960G?

ios software - this is the oprating system of the switch

vlan.dat - vlan database file

confg.text file - saved configuration of the switch which boots into nvram at start-up

If the power supply fails, what data is retained on the 2960G? - all saved configuration at time of failure

If the power supply fails, are any routing tables or IP addresses retained on the 2960G? - this is a L2 device it has limited routing - I think only static routes are allowed. and these wil be saved as per above

Assuming the 2960G was connected to a sensitive network would there be any sensitive material retained upon loss of power? -all saved configuration at time of failure

res

Paul

Please don't forget to rate any posts that have been helpful.

Thanks.

[mestrickland325]

Thank you for your time!

v/r

Mike