The IPv6 Travesty that is Cogent's refusal to peer Hurricane Electric - and how to solve it

Mon Jan 25 18:54:37 UTC 2016

--- nick at foobar.org wrote:
multihop bgp means that you don't have synchronised ethernet carrier
status between the provider and customer routers.  This in turn means
that if there's an intermediate connectivity problem, bgp will need to
time out before it notices and reroutes.  During this period, traffic
will be black-holed.  This is a crock.
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Unless BFD is able to be used.

https://en.wikipedia.org/wiki/Bidirectional_Forwarding_Detection

scott