The Sorrow Posted October 20, 2011 Share Posted October 20, 2011 I have a Catalyst 3560 24-Port PoE switch with 2 SFP connections. I plan on using an LC GBIC to connect to my pfSense box via an SC expansion card to make a fiber connection from my firewall to my LAN switch. Can i use a GBIC as an uplink port instead of for purposes of stacking? Quote Link to comment Share on other sites More sharing options...
Infiltrator Posted October 22, 2011 Share Posted October 22, 2011 I don't see, why that wouldn't work. Plus, I am also buying two switches with SFP ports to do the same thing as you are going to do. Quote Link to comment Share on other sites More sharing options...
slugman Posted November 3, 2011 Share Posted November 3, 2011 Ov course you can.... Quote Link to comment Share on other sites More sharing options...
The Sorrow Posted November 7, 2011 Author Share Posted November 7, 2011 Ive come across an issue actually... i plug in SFPs to either of the two sfp slots (with the switch off) and i get sw1-cobra.unit.net#sho int status err Port Name Status Reason Gi0/1 err-disabled gbic-invalid also sw1-cobra.unit.net#sh int gi 0/1 status Port Name Status Vlan Duplex Speed Type Gi0/1 err-disabled 1 auto auto unknown here is my config for the interface interface GigabitEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk speed nonegotiate channel-group 3 mode desirable non-silent ! may need a different GBIC? If so whats compatible with a WS-C3560-24PS... Quote Link to comment Share on other sites More sharing options...
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