Problem with edge switch SFP ports

[dgalaz]

Hello everyone, I need a little help, I have an edge switch DCS-7050QX-32S-R, which physically has 4 SFP ports (1-4), but at the administration level I don't see them, I only see the QSFP ports, someone do you know what it can be?

 

[bitbckt]

This may help: https://www.arista.com/assets/data/pdf/40G_FAQ.pdf

Particularly under the heading "Q. How do you change the QSFP+ ports to support 10G or 40G mode?" and "Q. How are the 7050Q shared QSFP+ ports changed to the SFP+ ports?"

 

[LodeRunner]

The 7050qx-32s supports breakout on the first 24 QSFPs.

core-40g(config)#hardware port-group 1 select ?
  Et1-4    Activate ports Et1-4
  Et5/1-4  Activate ports Et5/1-4

Setting Et1-4 disables the first QSFP port and enables the 4 10G ports.

 

[dgalaz]

thanks for your help, it's what I was looking for, I'll do a lab before and I'll check this, since it gives me a warning that indicates that I will have a flap in all the cards and if you tell me to deactivate the first QSFP (Et5/1), this is my trunk would leave without service, so I have to coordinate this change well

 

[LodeRunner]

Yeah, the 4x10 is physically sharing lanes with Et5. So you either get the 4x10G, or you get Et5. So if you want those SFP+ ports then you'd need to move your trunk, or whatever happens to be connected, from Et5 to elsewhere.

I use MTP to 4x 10G breakout fiber cables with QSFP optics, fed to LC bulkhead patch connectors for my 10G devices on my switch (I needed more than 4 10G interfaces anyway, so that was an easier overall solution for me).

If using breakout is an option, yes it has a slightly higher cost, but you can use an unused port rather than having to do downtime to move your trunk.

 

[dgalaz]

Thanks for the help, I will coordinate well so as not to have problems.