Possible to downgrade 10GB twinax CU SFP cable to 1GB
I'm somewhat of a newby specifying Cisco devices and I've made an error.
I have 2 Catalyst 2960S switches (C2960S-24PS-L).
Based on this snippet of web copy from the Cisco website:
What's new for the Cisco Catalyst 2960-S Series Switches with LAN Base Software:
• 10 and 1 Gigabit Ethernet uplink flexibility with Small Form-Factor Pluggable Plus (SFP+), providing business continuity and fast transition to 10 Gigabit Ethernet
I bought a cable assembly "SFP-H10GB-CU3M" (3 meter copper twinax cable with 10GB SFPs on each end). Unfortunately, it appears after more careful reasearch that my specific model 2960S's are not directly compatible.
So, my question is, can I force these 10GB SFPs down to 1GB and get them to work with my switches or do I need to return and repurchase?
You are more than likely gonna need to send them back. The switch is probably not going to recognize them when you plug them in. I had a similar issue with a copper sfp not being recognized on a 2960S switch myself. I had to get the fiber sfp for the uplinks.
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