[Samba] Power Failures or Spikes

Nicholas Couchman snick4584 at yahoo.com
Sun Aug 18 12:51:01 GMT 2002

This is very true if you have Cisco switches.  They are great, but when the
power goes out they take a couple minutes to start up (run through diagnostics,
boot the Cisco IOS) and then some more time to rebuild the MAC address tables
(which are stored in RAM, so they go away when the switch looses power).  Some
switches, like the unmanaged NetGear ones (or any "un-managed" switch, for that
matter), only take time to rebuild the MAC address tables.


--- Thomas Reiß <thomas at mypoint.franken.de> wrote:
> On Thu, Aug 15, 2002 at 12:34:41PM +0000, Tom Ansley wrote:
> > Actually, it is much simpler....
> > 
> > The server doesn't even go down.  The power outage is so short that the
> > ups keeps the server up so theoretically the server doesn't feel a
> > thing.  But when all the clients reboot they have problems connecting. 
> > Only once I have restarted smbd and nmbd do they see the network.
> Is it possible that you have an Switch between Server and Client that
> will fail when power switcht off ?
> So that switch need a little time to know the right ARP entries or the
> right Negotiation or something ....?
> sorry for my poor English
> Greetings
> Thomas
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