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Will vlan.dat auto save ?

Hi all, IF my current vlans deleted because of the new switch with higher configuration revision number , can I get the old vlans by restarting switch before save the configuration ? or is the vlan.dat file auto save while receiving the new vlan information from the vtp server ?
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Hall of Fame Super Silver

A switch doesn't keep

A switch doesn't keep archived (older) versions of vlan.dat - either in volatile (RAM) or non-volatile (flash) memory on its own accord.

If you had a backed up copy offline, that could be used. Otherwise you are stuck with recreating the VLANs manually.

Hall of Fame Super Gold

If it was overwritten then it

If it was overwritten then it's gone. 

 

If you want a particular switch to operate with an exclusive set of VLAN tables, then configure this as transparent.  

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