minimum speed on FC interface.

[ssawant]

What minimum speed can be set on FC interface of MDS9216 switch?

[j.sargent]

1Gb/s I believe... It will auto-negotiage by default.

[ssawant]

thanks,

can I force the speed to be less than 100Mbps? This FC interface is connected to storage and is dedicated for migration. It will be zoned with a FCIP interface on same switch.

[j.sargent · Accepted solution]

You can, but if the reason for doing it is to limit the traffic rate to fit the FCIP pipe, then I would do all of that on the FCIP interface. You can configure min/max bandwidth and a whole lot more on the FCIP interface. Cisco has a couple of design guides that are really good on this subject.

[j.sargent]

Some docs of interest for FCIP configuration include document numbers 47100 and 47120. Also, the FCIP Configuration chapter in the Configuration Guide is very good.

Hope this helps.

[ssawant]

thanks.

[addylamlappun]

Port rate limit can be set from 1-100% of port speed. The documentation mentions that port rate limiting can only be configured on Cisco MDS 9100 Series switches, Cisco MDS 9216i switches, and MPS-14/2 modules. The command is "switchport ingress-rate <1-100>" under the interface configuration.