Unsolved
This post is more than 5 years old
1 Message
0
3609
June 29th, 2018 08:00
VxRail Cisco Nexus 9k ToR and Twinax
Hi everybody ,
I would like to know if i can use the twinax cable provide by Cisco (ex. SFP-H10GB-CU5M ) on VxRail ?
My VxRail config will be based on 4x10 GbE SFP+ : 10 hosts per site .
By reading the network guide for vxrail , only information i get is :
Cable requirements:
- VxRail nodes with RJ-45 ports require CAT5 or CAT6 cables. CAT6 cables are included with every VxRail
- VxRail nodes with SFP+ ports require optics modules (transceivers) and optical cables, or Twinax Direct-AttachCopper (DAC) cables.
These cables and optics are not included; you must supply your own. The NIC and switch connectors and cables must be on the same wavelength.
If i can derease the price for network connectivity by using twinax cable SFP-H10GB-CU5M instead of 10GBASE-SR SFP Module , it's very great ...
Does anybody as a feedback about this compatibility ?
Thx for your feedback
boyler05
2 Intern
•
143 Posts
0
July 2nd, 2018 11:00
Yes. You always want to match the Twinax/DAC cable with the ToR switch being used. In the case of Cisco ToR (Nexus 9K), the Cisco-branded Twinax cable (Cisco SFP-H10GB-CU5M) is the correct choice, assuming you are looking for a long (5 meter) cable. The Dell PowerEdge-based VxRail nodes are using standard Intel NICs, which are compatible with DAC cables from a variety of Ethernet switch manufacturers. For example, I have VxRail nodes connected to Juniper ToR switches, in which case I use Juniper-branded Twinax cables, compatible with the Juniper switch model being used. As long as you choose the Twinax cable from the compatibility matrix of your switch vendor, you'll be good.