Re: [tcpm] Congestion control in face of ICMP unreachable messages

Daniel,

AFAIK, congestion control response to in-band messages (ACKs) and
timeouts (implied loss, as TCP interprets it), as well as to some new
fields (ECN, etc.) which are carried in the same packets.

Reactions to external congestion signals - ICMP source quench (which has
been informally deprecated a while ago, but has not been documented as
such yet) or otherwise - would constitute another opportunity for a DOS
attack, and seem like a bad idea to encourage.

Joe

Daniel Schaffrath wrote:
> Dear Community,
> 
> I was wondering if there are any recommendations regarding congestion
> control in face of ICMP (host/network) unreachable messages. If I am not
> mistaken there is nothing in the various TCPM documents... nor in any RFC.
> 
> Maybe you have any pointers?
> 
> Thank you,
> Daniel Schaffrath
> 
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Re: [tcpm] Congestion control in face of ICMP unreachable messages

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