Cisco ISR 4321 and GLC-T
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02-05-2020 11:33 PM
We have Cisco ISR 4321 router and this one came with spare SFP port and planning to install GLC-T RJ45 sfp module in to this.I have installed this and this recognized the media.
Auto Duplex, Auto Speed, link type is auto, media type is RJ45
My question is does this mean it will support the routing on this interface and work like normal interface.
Thanks for your help.
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ISR 4000 Series
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02-05-2020 11:52 PM
- It should , you can also verify optics compatibility here :
https://tmgmatrix.cisco.com/home
M.
-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

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02-06-2020 01:02 AM
Hello,
what does the interface show up like in the running config ?
If it looks like this:
interface GigabitEthernet 0/1/0
no ip address
it is a routable interface...
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02-06-2020 01:15 AM
Seeing in running config for the interface
interface GigabitEthernet0
ip address 172.30.235.10 255.255.255.224
negotiation auto
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02-06-2020 01:37 AM
Hello,
GigabitEthernet0 is the management interface I think...
Can you post the output of:
show ip interface brief
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02-06-2020 01:49 AM
From the above table it does support so routing should work as noraml.
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02-06-2020 04:50 AM
The compatibility matrix only shows you if the module is compatible, it does not say anything about layer 2 or layer 3 capability. With module inserted, post the output of 'sh run'...
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11-02-2020 07:55 AM
Hi Guys, I'm facing the same "issue". I just plugged the GLC-T, but I can't see the interface.
Did you guys solve it?
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11-02-2020 09:45 AM
Yes it will as the feature depends upon the Device and you can check the device features on the below tool
This tool helps to find all the feature supported on the device. explore and you will get to know more
Regards
Inderdeep Singh
"Rate the reply if you think it helps"
