straw poll for multi-homed operators

Tue Jun 26 13:15:09 UTC 2001

[number 5 in a series of unscientific surveys]

If you currently multi-home between two or more providers using IPv4:

 + why do you do it? What are the high-level goals you are hoping to achieve?
   Are you finding that you are achieving them?

 + how often does your traffic shift between transit providers due to
   a failure of some kind triggering a re-homing?

 + how often do you manually shift traffic, and why? Just inbound traffic?
   Or outbound too?

 + what impact does a manual or automatic shift in traffic between providers
   have to your users? Do their TCP sessions break? Or do you think they
   normally stay alive, maybe after a delay? What makes you think this?

 + what is *bad* about the way that multi-homing works in IPv4?

 + what is good about it?

Context is an attempt to nail down some requirements for a multi-homing
architecture in IPv6 (one that doesn't incorporate exciting up-and-to-the-
right state explosion in the DFZ). 

I can summarise private replies if there is interest.

  http://www.ietf.org/html.charters/multi6-charter.html
  http://www.automagic.org/~jabley/draft-ietf-multi6-multihoming-requirements-01.txt
  http://www.automagic.org/~jabley/draft-ietf-multi6-v4-multihoming-00.txt

Joe