I have an stack with this:
NAME: "2", DESCR: "WS-C2960S-48TS-L"
PID: WS-C2960S-48TS-L , VID: V04 , SN: FOC1709X2V4
NAME: "GigabitEthernet2/0/49", DESCR: "1000BaseSX SFP"
PID: GLC-SX-MMD , VID: V01 , SN: FNS1647150C
NAME: "GigabitEthernet2/0/50", DESCR: "1000BaseSX SFP"
PID: GLC-SX-MMD , VID: V01 , SN: FNS17110T28
NAME: "GigabitEthernet2/0/51", DESCR: "1000BaseSX SFP"
PID: GLC-SX-MMD , VID: V01 , SN: FNS1548016F
NAME: "1", DESCR: "WS-C2960S-48LPS-L"
PID: WS-C2960S-48LPS-L , VID: V04 , SN: FOC1723X3EQ
NAME: "GigabitEthernet1/0/49", DESCR: "1000BaseSX SFP"
PID: GLC-SX-MMD , VID: V01 , SN: FNS1545097Q
NAME: "GigabitEthernet1/0/51", DESCR: "1000BaseSX SFP"
PID: GLC-SX-MMD , VID: V01 , SN: FNS164600H2
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
1 52 WS-C2960S-48LPS-L 12.2(55)SE7 C2960S-UNIVERSALK9-M
* 2 52 WS-C2960S-48TS-L 12.2(55)SE7 C2960S-UNIVERSALK9-M
the gbics only link with other remote Cisco Switch , but not with other extreme summit switch or avaya c363t switch . The gbic interfaces only have this config params:
switchport trunk allowed vlan ................................
switchport mode trunk
the only one interface up is the one that link with other cisco switch. To test all the components then config another switch 2960X , put the gbics on it and oooppss!! all interfaces gone UP without problem.
differences? 2960S are in stack, 2960X standalone , 2960S has OS 12.2 , 2960X has OS 15.0.
please help me!! (sorry for my bad english )
Regards
