yes, but only if he then connects another link to another hub / switch and
causes a bridging loop.
-----Original Message-----
From: John Chang [mailto:[EMAIL PROTECTED]]
Sent: 01 March 2001 15:08
To: [EMAIL PROTECTED]
Subject: Portfast
In the below website it says not to have portfast on if you connect
switches, hubs, or routers. I understand that point but what if a user
connected a mini-hub (Ex. Linksys EtherFast 8-Port 10/100 Desktop Hub)
or unmanaged mini-switch (Ex. Farallon NetLINE 10/100 switch) so that he
could connect multiple computers. Would this cause any problems? Thank
you!
http://www-1.cisco.com/warp/public/473/12.html
Note: The portfast feature should never be used on switch ports that
connect to other switches, hubs, or routers. These connections may cause
physical loops
and it is very important that spanning tree go through the full
initialization procedure in these situations. A spanning tree loop can
bring your network down. If portfast
is turned on for a port that is part of a physical loop, it can cause a
window of time where packets could possibly be continuously forwarded (and
even multiply) in
such a way that the network cannot recover.
_________________________________
FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
