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Sounds like the printers are going into some type of powersaving
mode. This causes link establishment to be lost. Then upon wakeup
the switch which must go through the negotiation for speed and duplex
and then listen/learn/forward stage on the switch causes connectivity
issues.
Resolution:
on the switch use portfast for all HOST only ports
int fastx/x
spanning-tree portfast
on the switch and printer force speed/duplex.
int fastx/x
speed 100|10|auto
duplex full|half
==DMT>
- ----SIGNATURE------
Douglas M. Todd, Jr.
CCNP
Network Engineering
Partners Health Care
Building 149
149 13 Street
Charlestown, MA 02129-200
Tel: 617.726.1403
Email: dtodd@partners.org
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Verisign S/N: 3ff65cdf58b9dceda004baeed49e16cf
https://digitalid.verisign.com/services/client/index.html
>-----Original Message-----
>From: Mehta, Phoram [mailto:pmehta@trabonsolutions.com]
>Sent: Thursday, March 28, 2002 2:54 PM
>To: cisco-nsp@puck.nether.net
>Subject: Strange connectivity problem!
>
>
>I have this strange connectivity issue with all my printers.
>
>I have 4 printers connecting a switch(2924 with no
>configuration at all what
>so ever) and around 10 workstation connected to the same switch.
>this switch connects to a 2501 which connects to a remote
>office 2501 on a
>serial link.
>
>the ISSUE:
>if the printers are not used for 5 minutes they loose total
>connectivity
>with everything on remote office, the routers on both side. then if
>a workstation connected to the same switch as the printer pings
>the printers
>they come up and work fine. again if they stay unused for 5
>minutes, they
>are down.
>
>any ideas?
>
>for a workaround i have a constant ping to all printers from a
>machine in
>remote office but that's not a solution.
>
>Phoram Mehta
>Trabon Solutions
>Network Engineer
>Email:pmehta@trabonsolutions.com
<mailto:Email:pmehta@trabonsolutions.com>
Tel: (816) 276 2500 ext: 519
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