Also, to assure yourself you have strict queuing in place, you can follow the QoS baseline as outlined in the QoS SRND which is linked below.Your OSPF and BGP would be marked as dscp CS6/CoS 6; spanning tree CS7/CoS 7.For more info from the QoS SRND,...
In short, no.If you have your secondary link as an STP Blocked link and there are problems with it, it should not interfere with your primary link.Also, since you have two different link speeds, ie: 1gb (fiber) and 100mb (microwave), the priority com...