I could have built this damn thing in the time it took me to draw this out. Anyway...
Just want to see if my logic is right with this very basic diagram. I made it as simple as possible, but I figured if I had this right, then not only am I on the right track with learning the BCMSN course, then I can easily scale this model to bigger and better topologies in the future.
A couple of things to note:
1. I didn't include a core network since I haven't taken the routing course and I am not sure how to connect a router to two distrubution layer switches and have everything work at once...
2. Assume that PVST+ is enabled for load balancing...
3. The access layer switches are connected to the distribution layer switches in NON trunking mode (i.e. regular access ports). Not that it matters much anyway since there is only one Vlan per access layer switch.
I *think* everything is right here, but I do have one question. With the SVI's being identical on both distribution layer switches, how am I to connect to a particular distribution switch via layer 3 for management. In other words, what if a station on Vlan 10 wanted to connect to Dist. switch 2 for management purposes. What IP is supposed to be used here to connect to that switch?
The short answer is yes, traffic will go from as1 to ds1, ds1 -> ds2 and off to the upstream router.
However i'm not sure waht you achieve by tracking the interface. Remember that ds1 and ds2 will receive routes from your router as they both have connections.
If ds1 connection to the router goes down it will still get the routes from the upstream router, just via ds2 instead of direct from the upstream router.