perfSONAR User Q&A and Other Discussion

[Brian Tierney <>]

On Thu, Nov 13, 2014 at 1:25 PM, Francica, Chris <> wrote:

Hello, I am working on building some new perfsonar servers and was wondering if you had any confirmation, advice against or otherwise for the following NIC and setup:

NIC:    Myricomm 10G-PCIE2-8B2-2S

https://www.myricom.com/products/network-adapters/10g-pcie2-8b2-2s.html

This is basically the dual 10G port version of one of the NICs you list at tested ok (10G-PCIE-8B-S).

We've used that card on some of the ESnet hosts, and it works great.

 

Also, given an appropriately sized system, do you have a significant concern if I wanted to use a single node with a dual NIC card to test against multiple segments (for example, placing each NIC port on different segments of my LAN), as may typically be done with multiple servers on each LAN segment? In some cases, I will setup a dedicated server, but wanted to know if you ran into specific issues with why a single server should not be used on multiple segments, where appropriate.

To do that you'd want to use the Myricom '8C2' NIC, which can do a full 20Gbps. The 8B card

can only do around 15G, as the 2nd NIC is designed for failover, not dual use.

At least all this was true 2 years ago when we last tested......

 

Thanks for any information you might be able to provide!


Chris Francica
Network Engineer - Office of the CIO
National Renewable Energy Laboratory
Desk:   303-275-4170
Cell:           303-579-9360

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Brian Tierney, http://www.es.net/tierney
Energy Sciences Network (ESnet), Berkeley National Lab
http://fasterdata.es.net