Leo Bicknell <[email protected]> wrote: > > 1460 byte payloads down, maybe 64 byte acks on the return, and with SACK > which is widely deployed an ACK every 2-4 packets. You would see about > 2,140 packets/sec downstream (25Mbps/1460), and perhaps send 1070 ACKs > back upstream, at 64 bytes each, or about 68Kbps. Well under the 1Mbps > upstream bandwidth.
Note that with delayed ACKs (RFC 1122) there is an ACK for every other packet; SACK should do better than that. Tony. -- f.anthony.n.finch <[email protected]> http://dotat.at/ - I xn--zr8h punycode Humber, Thames: Northwest, veering north or northeast, 4 or 5. Slight or moderate. Fair. Good.
