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Max length of crossover cable

Created: 24 Feb 2012 • Updated: 07 Mar 2012 | 3 comments
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We are about to deploy a new cluster on customer site, I have asked that the two servers are placed near to each other.  Customer has asked what is the maximum length permitted for the crossover cable for interconnects.

Any ideas?

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mikebounds's picture

This is governed by hardware and according to

Maximum cable segment length

According to the ANSI/TIA/EIA standard for category 5e copper cable (TIA/EIA 568-5-A[5]), the maximum length for a cable segment is 100 meters (328 feet). If longer runs are required, the use of active hardware such as a repeater, or a switch, is necessary.


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Anoop_Kumar's picture

Veritas LLT does not limited to length of cable used for connect. Cable lenght matters with standards of networking as mentioned by Mike above.


Eric.Hennessey's picture

Consider the possibility that you may want to add a node to the cluster at some point in the future. If you've configured cluster comms on X-over cables, you'll have to take the cluster down in order to configure everything on switches.

I'd advise configuring a couple of VLANs on redundant switches for cluster comms instead.

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