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08-18-2012 07:10 AM - edited 08-18-2012 07:45 AM
08-18-2012 07:10 AM - edited 08-18-2012 07:45 AM
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08-18-2012 09:28 AM
08-18-2012 09:28 AM
Re: HP A7500 IRF with DAC 10G cable.
Not on the A7500, but on A5500. DAC is still just SFPs with a fiber between but not detacheable.
CCIE Service Provider
MASE Network Infrastructure [2011]
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08-18-2012 09:35 AM
08-18-2012 09:35 AM
Re: HP A7500 IRF with DAC 10G cable.
Thanks Fredrik, however I forget to mention that the DAC that I have, is a copper one. And I'm worried about the performance as I read on some docs.
Greetings.
Javier.
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08-18-2012 12:21 PM
08-18-2012 12:21 PM
Re: HP A7500 IRF with DAC 10G cable.
What docs are that? Cant really see why there would be a performance hit using copper DAC. 10G is supported over copper without problem.
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08-20-2012 05:19 AM
08-20-2012 05:19 AM
SolutionHey guys
See the Release Notes of 7500 R6701 Page 6:
"SFP+ Direct Attach Cables are not recommended for use as IRF connections because failover and recovery times are extended when this form of copper connection is use. Optical IRF connections are recommended to optimize IRF failure, recovery and convergence times."
For the the 5800 it's okay, for 7500 I use only fiber.
br
Manuel
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08-20-2012 07:07 AM
08-20-2012 07:07 AM
Re: HP A7500 IRF with DAC 10G cable.
Alright, I can dig that. But I'm assuming we're still talking subsecond carrier delay, so I wouldnt be that against using DACs.
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08-22-2012 11:36 PM
08-22-2012 11:36 PM
Re: HP A7500 IRF with DAC 10G cable.
Yes I agree. But will you really take that risk in a core network?
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08-23-2012 05:55 PM
08-23-2012 05:55 PM
Re: HP A7500 IRF with DAC 10G cable.
Thanks guys for your kindly answers, finally we decided to configure the IRF with 2 10G fibers.
Greetings.
Javier.