topic Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link in ExtremeSwitching (EXOS/Switch Engine)

5520 switch 1000BT GBIC in 5520-VIM-4X wont link

Keith9 — Fri, 12 Feb 2021 23:07:07 GMT

I put a 1000BASE-T SFP (FS.com Extreme encoded) that usually works without hesitation in X450G2 switches in a new 5520 switch. This would be port 1:57.

I connected a cable to an ethernet handoff and get no link. sh port 1:57 does not show any link at all.

The reason I’m using this is to keep the face ports (1 to 48) free for endpoints and I was going to use the VIM-4X for uplinks.

Any reason why this module works fine on a 450G2 but not a 5520 on EXOS 31.1.3?

It sees it according to the log

Slot-1: Media 1000T is inserted into Port 1:57

I even tried a cisco one, it sees that one too according to the log, but I can’t establish a link.

Port Display VLAN Name Port Link Speed Duplex # String (or # VLANs) State State Actual Actual =========================================================================== 1:57 Default E R

Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link

Stefan_K_ — Fri, 12 Feb 2021 23:11:47 GMT

Might be a chipset limitation that the 5520 does not support auto-nego on gigabit fiber-links - other EXOS Switches do support it and have it enabled on gigabit fiber-ports by default. Can you try to disable auto nego on both sides (or at least at the remote side):

configure ports <port number> auto off speed 1000 duplex full

Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link

EXTR_Paul — Fri, 12 Feb 2021 23:14:28 GMT

Check out the optics site for 5520 and the 1000BT p/n 10070H

https://optics.extremenetworks.com/EXOS/

It mentions that the extreme p/n 10070H is not supported on the VIM ports.

TTBOMK Its only supported on access ports for the 5520-48SE and 5520-24X.

Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link

Keith9 — Fri, 12 Feb 2021 23:16:07 GMT

On this 5520 switch I get this:
Error: Auto negotiation off is not supported on port 1:57.

The other end is an MRV OS606 fiber to ethernet handoff from a WAN provider. I don’t have access to that config, the ISP handles that.

I tried plugging in my gigabit nic from my windows laptop to port 1:57 and it does not link up either.

Whats weird is the ISP supplied MRV OS606 device shows a link light when plugged into the EXOS 1:57 port. Its just the EXOS operating system is not signaling a link.

Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link

Stefan_K_ — Fri, 12 Feb 2021 23:18:47 GMT

I had the exact same problems with an X695! Link on the remote side, no link on X695 (Solution: 1 GbE link fails to come up on X695 switch when autonegotiation is enabled on the peer switch | Extreme Portal (force.com))

As Paul mentioned it seems not to be official supported on the VIMs - but in my experience this doesn’t mean that it isn’t working at all. I got many SFPs running, that aren’t supportet according to the optics tool. Maybe I’m wrong this time… 🙂

Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link

Keith9 — Fri, 12 Feb 2021 23:19:07 GMT

Will this be able to be resolved in software? I have enough ports (96 face ports plus 8 VIM). I just really liked to standardize our ISP uplinks on SFP modules on the extra ports. That frees up all face ports for end-user equipment. Our other sites running Cisco 3750X or EXOS 460G2’s work great in this manner.

Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link

Stefan_K_ — Fri, 12 Feb 2021 23:21:01 GMT

What you could try:
Plug two Gbit SFPs in the 5520 and plug a cable directly between the SFPs. This causes a loop, so remove all VLANs from the ports. Then you will see if it works. 🙂

Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link

Keith9 — Fri, 12 Feb 2021 23:21:38 GMT

Yeah but the problem is this:
* (CIT_31.1.1.3) Slot-1 # configure ports 1:57 auto off speed 1000 duplex full
Error: Auto negotiation off is not supported on port 1:57.

Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link

Keith9 — Fri, 12 Feb 2021 23:25:14 GMT

Ok I have them in 1:57 and 2:57. No vlans on them, good proactive practice there….

connected a crossover cable between the two, with a live sh ports 1:57,2:57 on screen, its showing no link.

Just for the heck of it, I connected a regular straight through cat6a cable. Still no link.

I guess the VIM-4X only supports 10gbe SFP+ ports, even though EXOS sees the insertion and removal of regular gig SFP’s?

Think this would be able to be fixed in software?

Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link

Stefan_K_ — Fri, 12 Feb 2021 23:27:51 GMT

Well, then I’m sorry for the misinformation - it isn’t supportet as Paul mentioned and actually not working. 😞

Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link

EXTR_Paul — Fri, 12 Feb 2021 23:31:19 GMT

@Keith Correct, What “works” and what is “validated” are two different things. I have seen folks do some “creative” things with our switches over the years. I wish I could give you an answer but at this time I need to abide with the same tools the public uses.

You are best to follow up with your local Extreme SE. Have them reach into PLM. If you don’t know your SE you can DM me and I can help you out.

Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link

Keith9 — Sat, 13 Feb 2021 02:01:04 GMT

I think i will open a gtac case to have a ticket number to get some eyes on it and then reference that case number with our Extreme SE. The more visibility the better.

We expected this to work, especially since it works on the older switches. I just logged into one of our other sites switch stack and its a 2 x X450G2-48p-10G4 stack. Our WAN handoff goes fine into port 1:49 and cellular backup router into port 2:49, and OSPF on the stack with ipforwarding enabled works like a charm.

We are removing Cisco 3750’s because they are end of life this October. With 14 switches left, sure we could have just gone with more X450G2’s but we asked hey with this investment lets get the latest comparable model that will be supported for YEARS to come, and our rep came back with the 5520 with the VIM.

While we can work around this for now, the site has 86 access ports required and 2 x 48 nets us 96 front facing ports… we have enough free slots for the WAN handoff and Cellular backup handoff. The VM server has no issues linking up on 10gbps fiber across 1:59 and 2:59.

You know, I bet this is why I could not get a Cisco 3750 1gbps fiber optic SFP to link up with a 5520-24port with VIM and 1gbps fiber sfp’s in the side. I posted about that a few months ago. We just put it off until the parent 3750 switch in that one building gets upgraded to a 5520 stack with 10gig modules.

Re: 5520 switch 1000BT GBIC in 5520-VIM-4X wont link

Keith9 — Sat, 13 Feb 2021 02:35:26 GMT

I have to think this would be able to be fixed in software. I changed to the VOSS tab and it just states that its supported min software revision 8.2.5. The only difference is the software. We are not runing VOSS. We don’t know enough about it or SPBM fabric networking to run that in production yet. Someday maybe, but not by our target goal to get rid of Cisco switches that are approaching end of life.