On Fri, Sep 29, 2000 at 09:36:46AM -0400, Bradley J. Wilson wrote:
> Spanning Tree Protocol, which I'm assuming is what you're referring to,
> doesn't have anything to do with routing.  If you were connecting bridges
> together in a loop, STP would break the loop and you'd be fine.  In your
> case, the mechanism which will prevent routing loops is split horizon
> (assuming you're running RIP), which is on by default.

Sorry, I meant to say switch, wrote this too early in the morning
evidently.  So you are saying that STP does not only negotiate at switch
startup, it will constantly detect new loops that are added?  If so,
another question would be whether I could guarentee that it would be this
switch's port that would block to prevent the loop.  Or would it just be
the first switch that detects the problem?

The network looks like this:

       ------------             ------------
       | Switch A |-------------| Switch B |
       ------------             ------------
            |                        |
            |                         <------ This is link I plugin.
       ------------             ------------
       | Switch C |-------------| Switch D |
       ------------             ------------

So if switch D is then plugged in, will it start STP negotiation on the
port even though the switch has already booted?  Or will one of the
switches randomly discover the loop after the link is already forwarding
traffic and disable it's interfaces?


--
Jon Mitchell
Systems Engineer, Subject Wills & Company
[EMAIL PROTECTED]

**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.groupstudy.com/list/Associates.html
_________________________________
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http://www.groupstudy.com
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

Reply via email to