We tried some of that. Although in fairness, I'm remote while I have a wiring guy and non-network tech moving things around.

no dice.

Also tried a copper module. There I saw the link bounce. But then again, with the laptop not being mine and not verified -- I don't know.

Yay. I love working remotely. (not)

Will see about trying other things and get back to this thread.

Ok, running on 3.6.6 - No change in link status. 

Any other thoughts?

Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500es8-UNIVERSAL-M), Version 03.06.06.E RELEASE SOFTWARE (fc1)
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Compiled Sat 17-Dec-16 04:35 by prod_rel_team

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ROM: 15.1(1r)SG5
C4506 uptime is 13 minutes
System returned to ROM by reload
System restarted at 01:18:19 UTC Tue Aug 1 2017
Running default software
Jawa Revision 3, RadTrooper Revision 0x0.0x41, Conan Revision 0x1449

Last reload reason: Reload command

License Information for 'WS-X45-SUP8-E'
License Level: lanbase Type: Default. No valid license found.
Next reboot license Level: lanbase

cisco WS-C4506-E (P5040) processor (revision 2) with 4194304K bytes of physical memory.
Processor board ID FXS1926Q2N3
P5040 CPU at 2.2GHz, Supervisor 8-E
Last reset from Reload
4 Virtual Ethernet interfaces
144 Gigabit Ethernet interfaces
8 Ten Gigabit Ethernet interfaces
511K bytes of non-volatile configuration memory.

Configuration register is 0x2101

The system shows the line card -- and I go configure it -- but the ports don't stay up.

Is the port going down/up or does it just stay down? 

What happens if the SFP modules are plugged into the SFP ports of the supervisor card?

I meant to ask here -- why stop at 3.6.x when there's higher versions?

Just wondering since I'm looking at that DOM compat matrix...

If I run a LC-LC loop from one SFP port to another on the SAME 4500. (tried both the supervisor and the line card) -- that doesn't work, but I think spanning tree is on and am not sure how that would effect it. I would think the port would still come up but not forward traffic?

Can you do this again and also do the following: 

1.  In the configuration of the interface, can you add the command "logging event link";

2.  Plug the SFP in and connect the laptop; and

3.  Post the output to the command "sh interface <BLAH>".

Will do when I'm onsite next week.

ok, 

my config shows:

interface GigabitEthernet6/48
switchport access vlan 3
logging event link-status

and my sh int gi 6/48 shows: 

GigabitEthernet6/48 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet Port, address is a03d.6f41.bb4b (bia a03d.6f41.bb4b)
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, Auto-speed, link type is auto, media type is 1000BaseSX
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out

That's using the MM-SX-850nm module connected to the Crestron NVX encoder which is an LC-LC fiber connection to another MM-SX-850nm SFP module.

what should I be looking for in sh interfaces??

going to scrounge a copper next and mess with laptop.

 -Ben

I had a quick look at the Crestron NVX website.  Are you using Creston SFP-1G-SX?

We are not. We used a combination of some third party and Cisco GLC-SX-MM modules. Nothing seems to work when it's Cisco 4500 to NVX.

However, with any SFP module (all are SX-MM variety), 4500 to other Cisco (like SG200) works (of course).....

And with the NVX, any brand SX-MM to Cisco SG200 works.

It's just the 4500 to the NVX that's a problem. (the link on the NVX is on, but the Cisco is dark and the 'sh int <port>' shows down/down status.

We're gonna get a genuine Crestron SFP module tomorrow and see how that works out (and the head of development -- cause this is just dumb.)

 -Ben

Ben, 

Is the result the same when using the ports on the Supervisor card?

Copper in Supervisor SFP == works.

All link/module plug messages as expected on supervisor...

Fiber in Supervisor doesn't work at all (unless hooking to another Cisco Switch like the SG-200 we're playing with.)

Module plug messsges - yes... no link/proto up/down messages.

lasers are on.

Single fiber loop back cables link.

Third party or Cisco genuine have same results as well.