K 10 svn:author V 7 wollman K 8 svn:date V 27 1995-10-10T17:45:43.000000Z K 7 svn:log V 305 More MTU discovery: avoid over-retransmission if route changes in the middle of a fully-open window. Also, keep track of how many retransmits we do as a result of MTU discovery. This may actually do more work than necessary, but it's an unusual condition... Suggested by: Janey Hoe END