[c-nsp] Rate limiting questions

[Phil Mayers]

> I'm specifically talking about upstream traffic from the client, not 
> downstream from the HSRP routers.  Downstream will always flow out the 
> active as expected.

Not always. The HSRP standby has an active connected route for the
subnet and will (may) export it via a routing protocol, so the return
path *may* in some topologies be via the standby.