[ns] What's the mean of "h"?

[Mohamed Ismail]

I don't know what "h" means
but "A" is one of the flags and here is the meaning of the flags
(I got it from the net and I don't understand many of them)

Four of the flags are used for ECN: “C” for Ecn and “N” for Ecn-Capable in
the IP header,
and “A” for Congestion Action, and “E” for Congestion Experienced in
the TCP header. For the other flags, “P” is for priority, and “F” is
for TCP Fast Start.

Mohamed Ismail


----- Original Message -----
From: "Pepe Lupen" <loperini at hotmail.com>
To: <ns-users at ISI.EDU>
Sent: Thursday, September 08, 2005 8:03 PM
Subject: [ns] What's the mean of "h"?



Hi, can anyone tell me the meaning of "h" and "A" at the first column of
trace file?

Thanks!

d 0.584552 2 10 ack 40 ------- 1 8.0 0.7 15 1735
d 0.584552 1 10 ack 40 ------- 1 8.0 0.7 15 1735
r 0.584659 1 0 ack 40 ------- 1 1.0 0.0 458 1736
+ 0.584659 0 1 tcp 552 ------- 1 0.0 1.0 553 1789
r 0.584696 10 0 ack 40 ------- 1 8.0 0.7 15 1685
h 0.584696 0 10 tcp 552 ---A--- 1 0.7 8.0 16 1790
r 0.584784 0 1 tcp 552 ------- 1 0.0 1.0 483 1627
+ 0.584784 1 0 ack 40 ------- 1 1.0 0.0 471 1791
- 0.584784 1 0 ack 40 ------- 1 1.0 0.0 471 1791
- 0.584941 0 1 tcp 552 ------- 1 0.0 1.0 507 1683
r 0.585101 1 0 ack 40 ------- 1 1.0 0.0 459 1738
+ 0.585101 0 1 tcp 552 ------- 1 0.0 1.0 554 1792
r 0.585226 0 1 tcp 552 ------- 1 0.0 1.0 484 1629
+ 0.585226 1 0 ack 40 ------- 1 1.0 0.0 471 1793