UBC IT has posted to their UBC IT Bulletins blog:
Sporadic routing instability with BCNET Vancouver upstream Internet Transit providers November 2, 2011 12:00
“Due Sporadic routing instability with one of the BCNET Vancouver upstream Internet Transit providers, some Vancouver sites are experiences difficulties in reaching some Internet sites. The cause of this issue is being investigated.” –UBC IT
Be prepared for turbulence as you travel the internet.