Krisna Ismayanto

an enormous bLog..??

GNS3 : Saving VLAN Information

Written by kRiZ-Na on 7:33:00 PM

ok, when you restart your Router or you turn off the GNS3, the VLAN configuration is missing, why? Because all the VLAN information is save to file vlan.dat. Yes, you know that already.

So, this is the step to save the configuration :

K-ROUTER#erase flash
Erasing the flash filesystem will remove all files! Continue? [confirm]
Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erased
Erase of flash: complete


K-ROUTER#squeeze flash:
Squeeze operation may take a while. Continue? [confirm]
squeeze in progress...
Squeeze of flash complete

K-ROUTER#conf t
Enter configuration commands, one per line. End with CNTL/Z.
K-ROUTER(config)#vtp file nvram:vlan.dat
Setting device to store VLAN database at filename nvram:vlan.dat.

K-ROUTER(config)#do dir nvram:
Directory of nvram:/

124 -rw- 0 startup-config
125 ---- 0 private-config
1 -rw- 600 vlan.dat

129016 bytes total (127940 bytes free)
K-ROUTER(config)#

K-ROUTER(config)#do wr mem
Building configuration...
[OK]

ok, after that you can configure your vlan, vtp without worrying will lost the information.

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  1. 1 comments: Responses to “ GNS3 : Saving VLAN Information ”

  2. By Iraj on April 17, 2009 9:22 AM

    There is a simple way. Just uncheck "Automatically clean the work directory" in "Edit\Preferences\Dynamips". By default it is enabled and once you close GNS3, your bootflash file is deleted. It is working for me and hope it works for you.

    Iraj

About Me

Nothing serious, I'm just a man who likes changing through the burst environment and finding the right route cost..

A professional IT worker (even I'm just a Technical Support at my company right now ;p), towards a goal to be a real specialist in the field of system or networking.

rgds,
Krisna Ismayanto, S.Kom
CCNA®, MCDST, MCTS, MCITP