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.

Hope this helps -

Bradley Wilson
CCNA, CCDA, MCSE, NNCSS, CNX-A, MCT, CTT


----- Original Message -----
From: Jon Mitchell
To: [EMAIL PROTECTED]
Sent: Friday, September 29, 2000 9:02 AM
Subject: STP question



Does STP only stop loops when the router boots?  If I am building a loop
network, and then I boot up the final router with only one interface
plugged in (so it is not yet a loop), and then plug in the other interface
after the fact, what will happen?  Will the other interface start in
blocking or forwarding mode?  The book I am using does not seem clear on
this.

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



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