Multiple AppleTalk seed routers shouldn't be a problem, unless one of them
is misconfigured. If they both agree on the cable range and zone name(s),
then it doesn't matter if there's more than one seed router. A cisco router
would make sure they both agreed. If the routers are UNIX or Mac software
routers, as you mentioned, Chris, then they could both come up and cause a
problem if one were misconfigured.
I think the problem that this fellow is having is that the Macs don't hear
from the router when they first start up, so they decide that they are on
an isolated network and use a network number from the special range. Then
they hear evidence of a router and have to change their network number to
the correct number as advertised by the router. They hear evidence of a
router because they finally get a response to ZIPGetNetInfo or they finally
hear an RTMP.
This shouldn't cause a real problem, according to an "expert" that I asked.
He said the message the users see if FYI. They don't have to do anything.
(I would check the actual wording of the message.)
Good luck. Let us know what you find out! Thanks.
Priscilla
At 01:33 PM 10/16/00, Chris Lemagie wrote:
>I have seen this once in the past. It was caused by multiple seed routers
>(one Unix box and one Mac) on the same segment. IP connectivity was fine,
>but AppleTalk would come and go.
>
>Chris Lemagie
>Systems Engineer
>Cisco Systems
>Seattle Commercial Region
>(425) 468-0959
>[EMAIL PROTECTED]
>http://www.cisco.com/
>
> -----Original Message-----
>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
>Priscilla Oppenheimer
>Sent: Monday, October 16, 2000 12:35 PM
>To: Dave Redwood; [EMAIL PROTECTED]
>Subject: Re: appletalk on catalyst 5500 problem
>
>Well, turning on portfast would have been my method of troubleshooting
>also. The other thought that comes to mind is that maybe the EtherTalk
>devices can't hear from their router quickly enough because the switch
>ports don't enter forwarding mode soon enough.
>
>An EtherTalk device sends a ZIPGetNetInfo packet to find its router when it
>boots. It sends this packet a few times. Perhaps the response takes a long
>time, causing the device to think it's not on an AppleTalk internetwork to
>start with. Then when it finally gets a response, it displays the message
>about the AppleTalk connection becoming available.
>
>I think we would need more info on your topology to troubleshoot this.
>Where is the router? Is it far away, across many switches?
>
>There used to be an article on this topic at Apple's site, but I can't find
>it anymore. But maybe you can search for help there. Good luck!
>
>Priscilla
>
>
>At 11:02 PM 10/15/00, Dave Redwood wrote:
> >Good evening everyone. Well, I'm here on my Sunday night trying to figure
> >out a problem I'm having with some of the newer PowerMacintoshG4's and
>their
> >interactions with a Catalyst 5500. For some reason the Macs always come up
> >without their AppleTalk(EtherTalk) connection up as it was before a
>restart.
> >A message that basically reads, "your appletalk connection has become
> >available, you must open your appletalk control panel and close it again in
> >order to activate the connection". So, I thought that maybe, possibly, it
> >could be a STP issue on the Catalyst so I set it to port fast... the
> >problem still occurrs. So while I think the problem is with the MacOS I
>was
> >curious if anyone has run into the same problem and if they knew of a
> >solution... I took a look around CCO and the closest thing I could find
>was
> >that I should, perhaps, upgrade the software on my supervisor engine...
>But
> >I'd rather not just jump into that one. :-)
> >
> >Hope everyone had a good weekend,
> >
> >Dave
> >
> >CCNA
> >
> >
> >_________________________________
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>
>
>________________________
>
>Priscilla Oppenheimer
>http://www.priscilla.com
>
>_________________________________
>FAQ, list archives, and subscription info:
>http://www.groupstudy.com/list/cisco.html
>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
________________________
Priscilla Oppenheimer
http://www.priscilla.com
_________________________________
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