Hi
I have 2 main sites connected using a layer 2 National Ethernet link. The core switches at each site connected into a smaller 8 port switch which then connects to the circuit as follows:
Core site 1 ---------------8Port SW--------------NE Circuit--------------------------------------------NE Circuit------------8portSW---------------Core site 2
One site is using MST and the other is using Rapid PVST. I have just installed the 2 8port switches at each end and the link between the sites is active as i can see the other site via cdp. But I cannot ping the other site because spanning tree is blocking the link.
I am only running 3 of the many vlans over this link, is there a vlan I can get spanning tree at each end to not block the 3 vlans.
Spanning tree output at site one is below, so its G0/10 that needs to allow the 3 vlans
Thanks
MST0
Spanning tree enabled protocol mstp
Root ID Priority 8193
Address 0008.e3ff.fc28
Cost 20003
Port 10 (GigabitEthernet0/10)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32768 (priority 32768 sys-id-ext 0)
Address f078.16f6.fb80
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi0/1 Desg FWD 20000 128.1 P2p
Gi0/2 Desg FWD 20000 128.2 P2p
Gi0/10 Root BKN*20000 128.10 P2p Bound(PVST) *PVST_Inc
MST1
Spanning tree enabled protocol mstp
Root ID Priority 24577
Address e840.40fe.5200
Cost 20000
Port 1 (GigabitEthernet0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 24577 (priority 24576 sys-id-ext 1)
Address f078.16f6.fb80
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi0/1 Root FWD 20000 128.1 P2p
Gi0/2 Altn BLK 20000 128.2 P2p
Gi0/10 Mstr BKN*20000 128.10 P2p Bound(PVST) *PVST_Inc
MST2
Spanning tree enabled protocol mstp
Root ID Priority 24578
Address 08d0.9f57.e080
Cost 20000
Port 2 (GigabitEthernet0/2)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 28674 (priority 28672 sys-id-ext 2)
Address f078.16f6.fb80
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi0/1 Altn BLK 20000 128.1 P2p
Gi0/2 Root FWD 20000 128.2 P2p
Gi0/10 Mstr BKN*20000 128.10 P2p Bound(PVST) *PVST_Inc
