[nflug] Cisco Switch question on cloned NIC card

[David J. Andruczyk]

--- anthonyriga <torrodimerda at yahoo.com> wrote:

> They are setup as failover if I pull one cat5 out the
> other still works. 
> 

Turn up logging on the switch and the port change messages will tell
you the ports that the lines are plugged into.


> --- "David J. Andruczyk" <djandruczyk at yahoo.com>
> wrote:
> 
> > 
> > It sounds like they aren't configured for load
> > balance,  but as
> > failover (hence the single mac for both ports)
> > 
> > How doe you have then comfigured for sure on the
> > server side?
> > 
> > One way you can tell is to enable full
> > logging/debugging on the switch
> > and pull the connections out one at a time and note
> > the log entries
> > generated. (it'll also give you clues if you have
> > failover configured
> > correctly), beware this isn't recommended practice
> > on production
> > servers unless you have a downtime window that can
> > be made use of.
> > 
> > 
> > --- anthonyriga <torrodimerda at yahoo.com> wrote:
> > 
> > > Company I am working for has about 20 or so
> > servers
> > > setup with the Intel GIG NIC cards cloned for
> > > redundancy and network load balance. The nic cards
> > > have 2 ports on them  but 1 mac address. I am
> > trying
> > > to figure out what ports the actual CAT5 cable is
> > > connecting too from the server to the the GIG
> > switch
> > > without tracing everything manually becasuse the
> > > cables are a mess.
> > >  I have been sucessful getting the ports on the
> > non
> > > Intel cards that only have 1 port on them. I have
> > been
> > > doing a show arp then using the show
> > mac-address-table
> > > | in nnnn
> > >  where nnnn has any character of the mac address
> > in
> > > it...
> > >  
> > > It will then show you the port the mac address is
> > > assigned to..
> > > The NIC cards with 2 cat5 cables going to the
> > switch
> > > only show 1 port becasue there is only 1 mac
> > address
> > > it reconizes. Any suggestions on how to show the
> > other
> > > port? 
> > > 
> > > __________________________________________________
> > > Do You Yahoo!?
> > > Tired of spam?  Yahoo! Mail has the best spam
> > protection around 
> > > http://mail.yahoo.com 
> > > _______________________________________________
> > > nflug mailing list
> > > nflug at nflug.org
> > > http://www.nflug.org/mailman/listinfo/nflug
> > > 
> > 
> > 
> > Dave J. Andruczyk
> > 
> > __________________________________________________
> > Do You Yahoo!?
> > Tired of spam?  Yahoo! Mail has the best spam
> > protection around 
> > http://mail.yahoo.com 
> > _______________________________________________
> > nflug mailing list
> > nflug at nflug.org
> > http://www.nflug.org/mailman/listinfo/nflug
> > 
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around 
> http://mail.yahoo.com 
> _______________________________________________
> nflug mailing list
> nflug at nflug.org
> http://www.nflug.org/mailman/listinfo/nflug
> 


Dave J. Andruczyk

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 
_______________________________________________
nflug mailing list
nflug at nflug.org
http://www.nflug.org/mailman/listinfo/nflug