Nexus 9500 100Mb Port Support

[Guy Greenshtein]

Hi guys,

I was wondering if there's any support for 100Mb interfaces in the 9500 family? From reading the datasheets it seems the lowest speed is 1G. Maybe there's some way to use a module of SFP to reduce the speed?

Thanks in advance.

[ADP_89 · Accepted solution]

Hello,

100Mbps is no longer possible due to chip limits. The only way to attach a 100Mbps device to that switch is to go via a FEX device like the 2248TP. If you have a lot of devices that cannot go above the 100Mbps you would probably look into this direction but if you have just one/a few you might need to consider the economical implications of this additional extender.

A few links:

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/hw/interoperability/fexmatrix/fextables.html

https://www.cisco.com/c/en/us/products/collateral/switches/nexus-2232pp-10ge-fabric-extender/product_bulletin_c25-597306.html

HTH,

ADP

[Guy Greenshtein]

Thank you ADP, it seems like an alternative. But as you've already mentioned - we need to consider the economical implications of this solution. It's really odd tho that the chip is getting better but it can't support legacy port speeds.

[ADP_89]

Unfortunately it's common to all the switches, not only Cisco, that are implementing the same chip.

Until now I played around with devices from 4 different vendors using this chip and not a single one was able to run a port at 100mbps.

Rememebr to mark this post as solved if your questions have been answered ;-)

Cheers,

ADP