HP ProCurve 2920-48G with SFP Issue

[pete18]

Issue: With copper connected between the two racks on Port 20 (VLAN2), I could ping the other rack. But when we restart the switches with the fibre Port 45 (VLAN2) instead of the cooper between the two racks, I cannot ping the other rack. Both HP switches report their Port 45 “Port Status” as UP. Also tried combinations of Trunk (with Trk1) and Flow Control on both switches, but no change

Rack A & Rack B;
- 48 Port HP ProCurve J7928A fitted with SFP J4858C in port 45
     - VLAN1 untagged 1-15
     - VLAN2 untagged 16-30 & 45
     - VLAN3 untagged 31-44

     - Ports 1-44;
          - Type: 100/1000T
          - Mode: Auto
          - Flow Control: Disabled
          - Broadcast Limit: 0
          - LACP Status: Disabled
          - Trunk Type: None
          - Trunk Group: None     

     - Port45;
          - Type: 1000SX
          - Mode: Auto
          - Flow Control: Enabled
          - Broadcast Limit: 0
          - LACP Status: Disabled
          - Trunk Type: None
          - Trunk Group: None

Cable;
- 2 x Orange Multimode Fibre

[Michael Patmon]

Hello.  Assuming port 45 is still in the correct VLAN when you reboot it should not matter.  Can you attach the configs for both?

[pete18 · Accepted solution]

Hi, I did some VLAN housekeeping and put ports 45-48 in the same VLAN, and it pings the other rack fine now. Wierd why the SFP ports needed to be together.