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тАО10-30-2005 11:22 PM
тАО10-30-2005 11:22 PM
Re: ports on 5308 and 2650 going off-line/on-line 3 sec intervals,
I completely understand why cabling/drivers/nic/firmware/BIOS etc. should be checked first.
And disabling as many protocols as possible is next.
But at some point you've got to move on.
I've tested a couple of connections with a Fluke which says that everything is just fine :)
This occurs randomly on all ports and the machines are HP evo510/530, dc7100's, nx5000, nx7010's, Intel boards with onboards Intel nics, Ecs boards with onboard Realtek 8139 etc.
Some have old drivers, som new.
We tried latest firmware for the switches and tried downgrading.
I've sent several 'show tech all' and topology maps etc.
Unfortunately I'm no longer responsible for the network, and we'll be switching to 5308's shortly.
It appears that the 10.04 firmware contains a partial fix for the problem (http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=856664&admit=-682735245+1130761060626+28353475)
Regards,
Soren
Who also figured out not to use ├Г┬╕ in the forum :)
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тАО10-31-2005 12:57 AM
тАО10-31-2005 12:57 AM
Re: ports on 5308 and 2650 going off-line/on-line 3 sec intervals,
You infer wrong from my post. I said the FFIs that accompany the link up/down have been greatly reduced, not the link up/down.
I should point out that I have been able to fix all my link up/down issues by replacing jumpers, newer drivers, or disabling power management on the NICs.
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тАО10-31-2005 11:46 AM
тАО10-31-2005 11:46 AM
Re: ports on 5308 and 2650 going off-line/on-line 3 sec intervals,
Jeanniard, Preston, and your postings seem to imply that this random port up/down is only an issue with the 2600 series switches and that the 5300 and 2800 series do not seem to have this problem.
Am I reading this correctly?
Regards,
Manfred
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тАО10-31-2005 06:33 PM
тАО10-31-2005 06:33 PM
Re: ports on 5308 and 2650 going off-line/on-line 3 sec intervals,
I know you didn't say that the port toggling was fixed. Should've more clear, sorry.
Manfred,
I've only seen it with 2650's, but we haven't got any 5308s yet and our 2824 is a serverswitch.
About power managemet:
I've heard and read about this many times, and I still don't see why power management should cause port toggling. And if Procurves don't work with power management it should have a "NOT designed for Windows" logo on the box...
I'll stop ranting now :)
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тАО11-01-2005 02:49 AM
тАО11-01-2005 02:49 AM
Re: ports on 5308 and 2650 going off-line/on-line 3 sec intervals,
The switch simply reports what it sees. If power management turns off the NIC, the switch does not know why it was turned off, simply that it did.
If the syslog entries in PCM are an assault to your eyes, type '-line' in the filter, select all, and delete. You may want to give it a quick perusal though before deleting or you may miss indicators of problems.
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тАО11-01-2005 07:05 AM
тАО11-01-2005 07:05 AM
Re: ports on 5308 and 2650 going off-line/on-line 3 sec intervals,
Windows has a power management capability that can disable the NIC. When the NIC is disabled for power management, due to no network activity, it drops the link to the switch. In this case, the link up/down events are expected behavior with any vendor switch.
If you are concerned about the link up/down events, you can disable the Windows power management as a workaround or to troubleshoot this further. Some NICs also support their own power management capability, so please also refer to the vendor NIC documentation.
If NIC power management has been properly disabled, then I would not expect the port to be going on/off-line and should be investigated further.
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тАО11-03-2005 10:16 PM
тАО11-03-2005 10:16 PM
Re: ports on 5308 and 2650 going off-line/on-line 3 sec intervals,
Are you saying that a link down, up, down, up sequence is expected behaviour for a nic going to power save?
It's also worth noting that jtilenius' issue doesn't end up with a changed state ie. the link goes off/on.
If this is due to power management, then it seems to be a nic being turned off by power management and woken up again almost right away by the PC or the switch?
Regards,
Soren
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тАО11-13-2005 12:46 PM
тАО11-13-2005 12:46 PM
Re: ports on 5308 and 2650 going off-line/on-line 3 sec intervals,
Our site has some Procurve 2650
switches in addition to
Cisco 2900/3500/2950/3550
and Extreme Summit 200 and 48si.
I looked at ports going up and
down on some groups of switches,
and saw the following in a 24
hour period:
make number number link
of of ups &
switches ports downs
Cisco 24 343 742
Extreme 16 109 1120
HP 46 257 1176
number of switches = number of switches with
at least one port link
state change
number of ports = number of ports which had
at least one port link
state change
link ups and downs = number of link state
changes
Client computers are a mixture of
XP, linux, self managed, AD managed,
etc.
Cabling is CAT5, 5e and 6.
In conclusion, there are alot of ports
going up and down throughout the day,
but nothing in what I saw would indicate HP Procurve is significantly different than other makers. The link state changes
I am seeing are almost certainly caused
by the client computers.
Director, Network Services
Information Systems and Technology
MC 1018
(519)888-4567 x38323
University of Waterloo, Waterloo, ON
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тАО11-23-2006 09:41 PM
тАО11-23-2006 09:41 PM
Re: ports on 5308 and 2650 going off-line/on-line 3 sec intervals,
first i get a
duplex mismatch kl:11:20
Excessive CRC/Alignment Errors kl 11:20
Late collisions (collisions detected after transmitting ~64 bytes) were detected on port 11:20
the por i talk about is connected to out FW.
Cables and duplex is ceckt.
lacp is of
flow controll is on
any one have a suggestion what to do.
when this happends we lost conecction to the FW (internet)
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тАО11-26-2006 02:10 AM
тАО11-26-2006 02:10 AM
Re: ports on 5308 and 2650 going off-line/on-line 3 sec intervals,
First off, for a dedicated link to a FW, you really should not be relying on auto-detect. Hard code the proper settings on both sides. That said, my guess is you have either a bad jumper or ground loop problem.
You really should start your own thread. That way you can assign points to good answers and are more likely to get better answers when points are at stake.
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