Hello
We are having a big problem enabling Datacenter Bridging for SMB traffic for Storage Spaces Direct.
This is the commands we run
conf t
classofservice traffic-class-group 0 1
classofservice traffic-class-group 1 1
classofservice traffic-class-group 2 1
classofservice traffic-class-group 3 0
classofservice traffic-class-group 4 1
classofservice traffic-class-group 5 1
classofservice traffic-class-group 6 1
traffic-class-group max-bandwidth 50 50 0
traffic-class-group min-bandwidth 50 25 25
traffic-class-group weight 50 50 0
interface range ten 1/0/41,ten1/0/42,ten1/0/43,ten1/0/44,ten2/0/41,ten2/0/42,ten2/0/43,ten2/0/44
lldp dcbx version auto
lldp tlv-select dcbxp pfc
datacenter-bridging
priority-flow-control mode on
priority-flow-control priority 3 no-drop
As soon as we enable priority-flow-control priority 3 no-drop i loose connectivity to alot of servers and blade chassies connected on port channels.
If i shutdown the ports, do the config all is fine. If i enable the ports same result, loosing connectivity to alt of servers. I can see spanningtree doing all sorts of things. If i disable spanningtree same issue. But then i loose connectivity with our managment switch wich is a cisco 2960 switch.
Firmware is 6.3.1.11 i see there is a new version out, but the release note only has 2 fixes and not for this.
Now another thing that happnes now is that i lost SNMP connectivity to the switch. As it won't return any snmp statistics. We monitor bandwith on the switches for our wan traffic.
Please help, as we need to get RDMA working for Storage Spaces Direct.