show conn stateの末尾の接続フラグの意味

cisco
A awaiting inside ACK to SYN
a awaiting outside ACK to SYN
B initial SYN from outside
C CTIQBE media
D DNS
d dump
E outside back connection
f inside FIN
F outside FIN
G group
g MGCP
h H.225.0
H H.323
I inbound data
i incomplete
k Skinny media
m SIP media
M SMTP data
O outbound data
P inside back connection
q SQL*Net data
r inside acknowledged FIN
R outside acknowledged FIN
R UDP RPC
S awaiting inside SYN
s awaiting outside SYN
T SIP
t SIP transient
U up