% OK - but there is no other engineering mechanism than portable % address space which enables them to switch to another ISP % without unreasonable costs and disruption.
Several approaches that provide those capabilities have been discussed here in the past. So I disagree with "there is no other ... mechanism". % Sure, but there are no other alternatives. I disagree that "there are no other alternatives". % What mechanisms other than portable address space % are there which would enable any decent sized network % to change ISPs without a great deal of error-prone % manual work? One can imagine several methods. Decoupling the TCP session state from the IP address(es) in use, which was one possibility envisioned at the IAB Workshop, enables a range of different approaches, for example. % Can you cite an example of techniques in use today which % make any end-user network easy to change from one % PA prefix to another? Again, your premise is wrong. The Routing RG can consider any architectural approach -- whether or not that proposed approach is "in use today". Yours, Ran -- to unsubscribe send a message to [EMAIL PROTECTED] with the word 'unsubscribe' in a single line as the message text body. archive: <http://psg.com/lists/rrg/> & ftp://psg.com/pub/lists/rrg
