How to Determine the Cisco SFP Interface

How to Determine the Cisco SFP Interface

Can someone please tell me how to determine if an interface on a module (such as WS-X4612-SFP-E )has an SFP installed.

I tried show diag summary, and show interface, but the commands don't show if a port has an SFP installed.

The port is a Gig E port on a 12000 GSR.

The solution:

So if you do a sh int G0/0/1 (or similar), you don't see something like:

Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseZX SFP?

And if you do:

sh int g0/25 capabilities

GigabitEthernet0/25

  Model:                 WS-C3560G-24TS

  Type:                  1000BaseZX SFP

  Speed:                 1000

  Duplex:                full

  Trunk encap. type:     802.1Q,ISL

  Trunk mode:            on,off,desirable,nonegotiate

  Channel:               yes

  Broadcast suppression: percentage(0-100)

  Flowcontrol:           rx-(off,on,desired),tx-(none)

  Fast Start:            yes

  QoS scheduling:        rx-(not configurable on per port basis),

                         tx-(4q3t) (3t: Two configurable values and one fixed.)

  CoS rewrite:           yes

  ToS rewrite:           yes

  UDLD:                  yes

  Inline power:          no

  SPAN:                  source/destination

  PortSecure:            yes

  Dot1x:                 yes

GigabitEthernet1/0/4 is down, line protocol is down

Full Duplex, 1000Mbps, link type is autonegotiation, media type is missing

That would imply there is no SFP (WS-X4648-RJ45V+E) inserted.