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Beginner

Determine the serial number on GBIC

Im trying to determine the serial number of Gbics already installed and running on a Catalyst 2950 switch. Is there a specific command to do so? There is a command on Catalyst 4506 that gives all info regarding the Gbic ("show idprom interface gi 1/1")

Is there something equivalent for 2950?

Thank you in advance!

Nikolas

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Beginner

As far as I am aware I don't think there is. Having installed an 80 device network and customer required all GBIC serial numbers audited, we had to take the serial down as we inserted the GBICs.

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Beginner

You may try to snmp poll the entity mib table.

This will give you the name of the physical components:

1.3.6.1.2.1.47.1.1.1.1.7

This will give you the serial number for the components:

1.3.6.1.2.1.47.1.1.1.1.11

Here is an example that shows the component:
.1.3.6.1.2.1.47.1.1.1.1.7.1235 entityMIB.entityMIBObjects.entityPhysical.entPhysicalTable.entPhysicalEntry.entPhysicalName.1235 OCTET STRING Transceiver Gi1/8 "Transceiver Gi1/8"

Here is a poll that references the index number of 1235 (Transceiver Gi1/8) and therefore the GBIC in port Gi1/8:

.1.3.6.1.2.1.47.1.1.1.1.11.1235 entityMIB.entityMIBObjects.entityPhysical.entPhysicalTable.entPhysicalEntry.entPhysicalSerialNum.1235 OCTET STRING FGS16450R4R      "FGS16450R4R     "
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Beginner

"show inventory" works on newer versions of IOS but I am not sure if it is supported on a 2950.  It may be worth a try at least.  It's been a while since I have been on a 2950.

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Show inventory works on my 4506.