topic Re: Flow control recommendations in BladeSystem - General

Flow control recommendations

ewilts — Mon, 16 May 2011 19:22:21 GMT

What are the best practice recommendations for flow control? We have several C7000 with Virtual Connect 3.18. The blades are running ESX 4.0U1, ESXi 4.1U1, and RHEL 5. The switches are Nexus 5548 and Nexux 7000. There are obviously many places to set send, receive, off, or auto flow control. The storage is NetApp filers where the vendor is recommending "flowcontrol send" with the corresponding switch ports to "flowcontrol receive".

Should we default everything on the blades, VC and corresponding switch port sides, or should we be configuring something similar to the way the NetApp edge devices are configured?

Opinions and links to white papers would be greatly appreciated!

Thanks,

.../Ed

Re: Flow control recommendations

Stevem — Tue, 17 May 2011 20:34:12 GMT

By default flow control is enabled within Virtual Connect.

Re: Flow control recommendations

ewilts — Tue, 17 May 2011 20:49:37 GMT

@Stevem wrote:
By default flow control is enabled within Virtual Connect.

I realize that but by default it's disabled on the Cisco switches so it doesn't matter what the default is within VC.