FEX module uplinks

[wwwillster07]

This is the inventory

NAME: "FEX 100 CHASSIS", DESCR: "N2K-C2248TP-E-1GE CHASSIS"
PID: N2K-C2248TP-E-1GE , VID: V02 , SN: XXX

NAME: "FEX 100 Module 1", DESCR: "Fabric Extender Module: 48x1GE, 4x10GE Supervisor"
PID: N2K-C2248TP-E-1GE , VID: V02 , SN: XXX

NAME: "FEX 100 Fan 1", DESCR: "Fabric Extender Fan module"
PID: N2K-C2248-FAN , VID: N/A , SN: N/A

NAME: "FEX 100 Power Supply 1", DESCR: "Fabric Extender AC power supply"
PID: N2200-PAC-400W , VID: V05 , SN: LIT18430PEV

NAME: "FEX 100 Power Supply 2", DESCR: "Fabric Extender AC power supply"
PID: N2200-PAC-400W , VID: V05 , SN: LIT18430PRP

Here's the relevant config:

fex 100
pinning max-links 1
description "FEX0100"

interface port-channel100
description Uplink to NEXUS2K48A
switchport mode fex-fabric
no lacp suspend-individual
fex associate 100
vpc 100

interface Ethernet1/3
description NEXUS2K48A
switchport mode fex-fabric
fex associate 100
channel-group 100

I know on my Nexus5k port eth 1/3 connects to this FEX module.

My question is how do i figure out which port on the 2k48 is eth 1/3 connected to?

If I do a show run or a show int bri I can see 48 ports on the 2k48, eth 100/1/1-48 but not the 10G sfp ports...?

Thank you...

[balaji.bandi · Accepted solution]

My question is how do i figure out which port on the 2k48 is eth 1/3 connected to?

show fex 100 transceiver detail  (issue this command on 5K)

you below sample output :

Fex Uplink: 1
Fabric Port: --
sfp is present
name is CISCO-AVAGO

Fex Uplink: 2
Fabric Port: Ethernet1/3
sfp is present

[wwwillster07]

Thanks!  This is what was throwing me:

Fabric Port: --
Fex Uplink: 2
sfp is present
name is CISCO-FINISAR
type is Fabric Extender Transceiver

But when i look on the secondary uplink 1 is showing as -- and 2 is showing normal...show the opposite

Logically now it makes sense.