Changing tunnel servers

[cshilton]

Since I've switched ISPs from Optimum to Frontier, it's looking like my closest tunnel server has changed from New York City to Ashburn Virginia. A quick traceroute to each shows NYC at 15ms and Ashburn at about 9ms. My reason for looking into this is that last night I noticed that there was a temporary problem with my link between my VA net egress and NYC tunnel servers. My ping times to Google, Yahoo, etc, shot up to 150ms. The problem is fixed this morning. And don't take my amateur's diagnosis on the location of the problem. But, it looks like it's probably worthwhile to change.

Q: When I change tunnel servers I also have to get a new /48?

This means renumbering the network which means renumbering the handful of static assignments that I've made.

Q: Can I keep two tunnels up for a weeks or two while I shake out potential problems?

[ertyu]

When I've changed tunnel servers in the past it did involve renumbering.
I believe you can have multiple active tunnels.