failover for apt sources ?

["Paul J. Lucas" <pauljlucas@mac.com>]

	So I got:

Failed to fetch
http://sluglug.ucsc.edu/debian/dists/testing/main/source/Release  Could not connect to sluglug.ucsc.edu:80 (128.114.59.17), connection timed out

	so I added an additional host to /etc/apt/sources.list:

deb http://sluglug.ucsc.edu/debian/ testing main
deb-src http://sluglug.ucsc.edu/debian/ testing main

deb http://linux.csua.berkeley.edu/debian/ testing main
deb-src http://linux.csua.berkeley.edu/debian/ testing main

	and tried again, but apt never tried the second host when the
	first failed.  Why not?

	- Paul