Well, I'm rather embarrassed to say, it was a bad
cable.  Now, what are the odds of having two bad cables from a mfg.?
When we put in the 4510, we bought about 100 Cat5e and I was using one
of them.  So, when this problem first occurred, I replaced the current
cable with one from the mfg. When it still happened I figured the cable was 
good.

After trying Linux, it still didn't work.  So I swapped out that cable and lo 
and behold, link came up.
Sometimes I really should look at the simple solution (course that isn't as 
much fun).

Date: Thu, 25 Feb 2010 17:44:26 -0500
Subject: Re: Cisco 4510 & Intel NIC's
From: [email protected]
To: [email protected]

Here's a some things to try.
Double check that both sides of the link have speed and duplex set to 
autonegotiate.   Per the IEEE 802.3ab autonegotitation is mandatory for 
gigabit.  Hard-coding both sides *may* work but is not to standard and is not 
recommended.  Hard-coding just one side will not work.


Check the cabling.  Gigabit can be touchy about cabling.  Is the cable run 
between the PC and switch especially short? (Less than 1 meter)  If so, swap it 
out for a longer cable.  Is it really long?  Shorten it up.  Are you using 
CAT5E, 6, or 6E?  Try plain old CAT5.


Swap out the NIC in the PC.

HTH

Phil




On Thu, Feb 25, 2010 at 2:19 PM, paul d <[email protected]> wrote:






Thanks for the reply, Phil.  However, I had pretty much done all that.  I did 
note, however, then when I tried to change to 10/half or 100/full, etc., the 
nic kept reporting 1 gig.  It would be up for 5 seconds and then drop the 
connection.


Date: Thu, 25 Feb 2010 12:45:04 -0500
Subject: Re: Cisco 4510 & Intel NIC's
From: [email protected]
To: [email protected]


Take a look at this.

http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a00800a7af0.shtml






On Thu, Feb 25, 2010 at 11:37 AM, paul d <[email protected]> wrote:






We recently swapped out our 4006 for a 4510. I am having some problems with a 
couple of newer pc's with INtel Gigabit NIC's. The connection comes up for 
about 3 seconds and then I get a cable unplugged.
Cisco logs doesn't show anything.  I've upgraded the NIC to the newest driver 
along with the BIOS.


I've set switch to 1000/F, 100/F and Auto Neg and then setting the NIC to match.
This happens on more than one blade on the 4510. BTW, all ports are gig.
Is there something with those Intel gig NIC's that I'm missing? Some setting 
perhaps?


My pc is running at 100 with an Intel 100 NIC.
Thanks.
                                          
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