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тАО02-26-2004 10:52 AM
тАО02-26-2004 10:52 AM
Network Latency
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тАО02-26-2004 04:09 PM
тАО02-26-2004 04:09 PM
Re: Network Latency
A "show interfaces brief" from the CLI should tell you if auto-negotiation was done correctly. You shouldn't have to nail the ports at 1000fdx if everything's behaving normal.
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тАО02-26-2004 07:39 PM
тАО02-26-2004 07:39 PM
Re: Network Latency
The latest revision for 4108GLs available on HP site is G.07.50. Do you have it installed?
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тАО02-27-2004 01:37 AM
тАО02-27-2004 01:37 AM
Re: Network Latency
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тАО03-01-2004 01:35 AM
тАО03-01-2004 01:35 AM
Re: Network Latency
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тАО03-01-2004 03:00 AM
тАО03-01-2004 03:00 AM
Re: Network Latency
Not to challenge your problem statement, but how did you determine that it is a latency problem, as opposed to, say, dropped packets? I think your answer will help us give you better advice.
Regards,
Ralph
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тАО03-01-2004 03:22 AM
тАО03-01-2004 03:22 AM
Re: Network Latency
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тАО03-02-2004 07:57 AM
тАО03-02-2004 07:57 AM
Re: Network Latency
Not to tell you how to configure your network (everybody has different ideas and experiences) but here is some food for thought:
If you have two ends of a connection that are both going to be the same no matter what, why leave it up to Auto-negotiation? What is the overall benefit to everything involved?
Certain operating systems and network gear, while claiming to be highly capable of auto-negotiation, seem to have issues successfully determining the appropriate mutual speed. While that may cause limited issues on the outer fringes of the network, it can wreak sheer havoc on the core and the issues can be a real monster to track down since the issues are usually seen on the outer rim and we always start looking where we see the errors, not at the core.
I don't know the scope of your network and I have NO idea how large of a task this would be, but it seems as if you have spent a great deal of time in the troubleshooting process already. Perhaps it would be more prudent to start hard-coding the ends of the network links that are known to most likely remain static as you are chasing down errors (is that the port with the problem? -- No? -- Static it now and move on...). I would even include servers in this if it were up to me since they are likely to be in place for a long time to come.
What you should ultimately end up with is nothing but fringe devices (PC's, laptops, etc) left on Auto-negotiate with a solid core that doesn't have to worry about it any longer.
Just a thought,
John
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тАО03-02-2004 08:27 AM
тАО03-02-2004 08:27 AM
Re: Network Latency
I'm with you 100%. That's the thought process that started this whole thread. I tried setting the fiber switch link to 1000FDX and lost communication with the remote switch. Any suggestions?
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тАО03-03-2004 08:48 AM
тАО03-03-2004 08:48 AM
Re: Network Latency
If you set one end of the link and lost connection to the other end, then what happens when you set the other end first and work your way back? Do you still loose connectivity? What do the logs on each end of the link have to say before you change the speed? What about after (connectivity or not)? When you look at the capabilities of both devices, they will say that they are both capable but what do they auto-negotiate to if left alone? If they aren't physically out of your reach, then set the most remote one first (so you don't loose connection to the nearest one) and then set the one closest to you even if it says you lost connection. What happens then?
Sorry for not responding sooner, but I've had some family challenges and I really should be dealing with them now, but I needed a break.
Now the question might come up as to what my mental state is if I consider something like this a break, but I'll deal with that issue later ;-P~~