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Hi all,im using 2960 24 port switch. it has rapid-pvst, i given uplink to SG-300 from G0/2.the out put of Sh int trunk is given below.Port Mode Encapsulation Status Native vlanFa0/22 on 802.1q tru...
Hi paul and alainmy both switches are in RSTP MODE. but here SG-300 using RSTP and 2960 using rapid-pvst. its taking the spanning tree root on Gi0/1 for some vlans in 2960. Gi0/2 is up link to SG-300 , all vlans on the trunk.. but spanning-tree not f...
Hi alain,below is the spanning tree vlan 10,.. for security reseaons i removed mac--VLAN0010 Spanning tree enabled protocol rstp Root ID Priority 32778 Address Cost 4 Port 25 (GigabitEth...
Hi devils,yes your right,im using non cisco tx:1310nm rx:1550nm module.i changed the gig port in other side switch(Gi3 to Gi4), now its working..and i used that no errdisable detect cause gbic-invalid command..Thank you
1 has bad crc%PM-4-ERR_DISABLE: gbic-invalid error detected on Gi0/1, putting Gi0/1 in err-disable state%LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to down%PM-4-ERR_RECOVER: Attempting to recover from gbic-invalid err-disable state on...
