Cisco sfp

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ASKER

sh inv and sh int gig capa do not show the part or model #.

Post your show commands.

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ASKER

The client bought it from a Cisco shop.

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skraaz

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ASKER

the 2960 does not support sh hardware. I did sho diag but it does not show the sfp model number.

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Here's my "sho inv"

MX-3560-SW2#show inv
NAME: "1", DESCR: "WS-C3560-24PS"
PID: WS-C3560-24PS-S   , VID: V06, SN: CAT-------

NAME: "GigabitEthernet0/1", DESCR: "1000BaseSX SFP"
PID:                     , VID:     , SN: FNS1009Q1PA     

NAME: "GigabitEthernet0/2", DESCR: "1000BaseSX SFP"
PID:                     , VID:     , SN: FNS1009Q1PG

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since the description is "1000BaseSX SFP" .... I go over to that link I gave you with the tranceiver tables and I'm given part number "GLC-SX-MM" which are the tranceivers I'm using.

I don't think you'll be given the output of the actual part number from the IOS. I ran a show tech and searched GLC on mine and nothing came up.

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(On a side-note, do not buy any GLC-T= transceivers for any more-current equippement, like ASR or newer switches - they won't work! Get SFP-GE-T instead ...)

ASKER

I was looking for a command that allows me to see the model like GLC-SX-MM. So that I know what I have.
What is with or without Digital Optical Monitoring (DOM) for the transceivers.

usually the show tech command has all the diagnostic data for that switch, but as I mentioned earlier it didnt show my SFP model numbers, so I doubt there's any other command that will show you it.

Digital diagnostics monitoring

Modern optical SFP transceivers support digital diagnostics monitoring (DDM) functions according to the industry-standard SFF-8472. This feature is also known as digital optical monitoring (DOM). This feature gives the end user the ability to monitor real-time parameters of the SFP, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage.

ASKER

Is DOM a must have?

I dont't usually get them with DOM. I'm sure there's a price difference.

They would be helpful for ISPs or if you have lots of fiber links, but I've yet to run into a situation where I needed to get those readings. I just keep a couple SFPs as spares should something happen to one.

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