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Re: [MEXT] [WGLC] draft-ietf-mext-flow-binding-03



Title: Ericsson Signature
Hi,
after re-reading the draft come up with the comment on "Discard" action in "Flow Identification Mobility Option"
I suggest either to extend the paragraph in the section 4.2 or add a separate subsection clarifying behavior of MN and HA before and after the "Discard" action was issued by MN.
 
Below are the issues which are proposed to be addressed in the text.
 
1.The case when installed FID represent ranges of port numbers and IP addresses. If MN decides to discard a particular flow within the range then before that a correspondent FID should be installed in the HA. Otherwise  "136 FID not found" will be returned from HA.
 
2. Specify the time interval for how long time the "Discard" state will be active in HA. This is necessary because there is no "un-discard" message sent from MN.
 
3. Add a disclaimer that for some protocols, like TCP, "Discard" action may lead to hanging up the connection at CN and should be used responsibly.
 
 
Regards
Yuri