This bears clarification...
The port immediately goes into a forwarding state, bypassing the listening
and learning states. However, it will learn the stations MAC address
immediately
on the first packet that the station sends. You say "at a later time" and I
think
that is a little misleading. Also, it should be noted that this should only
be used when the switch port is connected to ONE host. If portfast is
enabled on
a port connecting to more than one host (i.e.- a hub with multiple servers)
then switch
loops will likely be the result.
Roman
-----Original Message-----
From: Roan, Wayne [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 11, 2000 12:41 PM
To: '[EMAIL PROTECTED]'
Subject: RE: cisco 3524 XL EN problem
You may need to enable portfast access. This will allow the computer to
transmit data immediately and the switch will learn the MAC address at a
later time. It will however broadcast data coming to your port on all ports
it does not know the MAC address for until it learns your computer's MAC
address.
-----Original Message-----
From: atif [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 11, 2000 9:14 AM
To: cisco group study
Subject: cisco 3524 XL EN problem
Importance: High
i have installed a cisco 3524 xl en switch, i am facing a weird kind of =
problem i hope u guys will help me solve this problem.
the problem is that when a pc is connecte to switch for the 1st time it =
takes about 4 to 5 minutes for the switch to communicate with the =
machine.The led on both sides shows green light even when its not =
communicationg and the ping request is timed out.
then after that it takes about 1 minute for computer to see the switch =
if we take the connecter out of the switch and inserts again.
now todays it happened that after the weekend when computers were =
started some were communicating and many were not and all leds were =
showing green lights and after one hour or so every thing was =
normalized.
i havent seen this sort of problem before, this switch at the moment is =
running at default configuration and connected to a router to a vsat =
link.
i havent assigned ip add info so far , can this be a problem( i dont =
think so).=20
can any body figure it out what is the problem,
is something wrong with cabling,switch or NIC.
atif
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