16-port 10/100/1000 Module (J4907A) failure

[William_169]

What cisco core switch do you use?
Are you planning using the HP 5308XL as your core?
We had the 4 J8167A (J4907A bundles) for over 6 months now, and they seemed fine.
We plan to use two of them in XRRP config.
How do you like the PCM 1.6?
Does it help you config and monitoring?
What software do you use to monitor your servers and your network equipments?

[Les Ligetfalvy]

I plan to retire my Cisco Catalyst 5000 core switch, not because of any problems with it but because the backplane does not have the bandwidth for gig and the Cat5000 is at EOL.

The cost of LH GBICs and the way my multi-mode fibre is strung over two kilometres makes it impractical to have a true core switch which is why I decided to build a mesh instead.

I do use PCM+ but to be honest, it still looks like a beta to me. I also use WhatsUp Pro and a suite of Fluke products to manage my network.

[William_169]

Hi Les,
Thanks and good luck.

[Les Ligetfalvy]

Unfortunately, I need more than good luck. I had a 5th module fail me. :`(

[William_169]

My J4907A still working.
I begin to think it maybe is meshing that causes the problems.

[Les Ligetfalvy]

I can easily discount that theory. I had gig modules failing on my test bench with no connections at all to the switch and/or with a simple connection to my network from a non-failing module.

Dispite my insistence that such a module failure should raise alarms, even with the 9.22 code it still does not. I have to scour through the syslog or the switch log to see the error, or physically visit the switch. If the module fails at any other time than at boot, or the failure does not cause the switch to reboot, then there is not even anthing in the logs to look at and a visit to the switch is required.

[Les Ligetfalvy]

I see that some of my criticisms directed at HP have been censored which I guess is their prerrogative. I am sorry that I had to resort to using this forum to get action on my issues and will leave it to HP to add any footnote they wish to this thread I am now closing.