Where could one found a description of item reported by netstat -n. I’m
interrested in PCB hash missed?
- Mario
“Mario Charest” postmaster@127.0.0.1 wrote in message
news:eda5h2$4si$1@inn.qnx.com…
Where could one found a description of item reported by netstat -n. I’m
interrested in PCB hash missed?
meant netstat -s
- Mario
Mario Charest postmaster@127.0.0.1 wrote:
“Mario Charest” postmaster@127.0.0.1 wrote in message
news:eda5h2$4si$> 1@inn.qnx.com> …
Where could one found a description of item reported by netstat -n. I’m
interrested in PCB hash missed?meant netstat -s
A packet came in and there was no connect()ed socket
on this end. The lists of connected sockets are
searched via a hash (all 4 of the local ip, remote ip,
local port and remote port must match for this search
to pass).
Regards,
-seanb
Mario Charest postmaster@127.0.0.1 wrote:
“Sean Boudreau” <> seanb@qnx.com> > wrote in message
news:ednthc$csk$> 1@inn.qnx.com> …
Mario Charest postmaster@127.0.0.1 wrote:“Mario Charest” postmaster@127.0.0.1 wrote in message
news:eda5h2$4si$> 1@inn.qnx.com> …
Where could one found a description of item reported by netstat -n. I’m
interrested in PCB hash missed?meant netstat -s
A packet came in and there was no connect()ed socket
on this end. The lists of connected sockets are
searched via a hash (all 4 of the local ip, remote ip,
local port and remote port must match for this search
to pass).Is this normal? A device is sending the QNX box UDP packets but they are
making it to the application.
It can be. If you don’t connect() a udp socket it will
receive all packets sent to the bound local port.
I"m trying to understand a strange behavior. The device is sending UDP at
steady rate (12K packets a seconds). io-net will for use less then 1% for 4
secondes then ramp to 40% for about 3 secondes then back to 1%. The
application receiving the packet seems fine.
Doesn’t ring a bell. Any other interfaces / protcols involved?
Regards,
-seanb
“Sean Boudreau” <seanb@qnx.com> wrote in message
news:ednthc$csk$1@inn.qnx.com…
Mario Charest postmaster@127.0.0.1 wrote:
“Mario Charest” postmaster@127.0.0.1 wrote in message
news:eda5h2$4si$> 1@inn.qnx.com> …
Where could one found a description of item reported by netstat -n. I’m
interrested in PCB hash missed?meant netstat -s
A packet came in and there was no connect()ed socket
on this end. The lists of connected sockets are
searched via a hash (all 4 of the local ip, remote ip,
local port and remote port must match for this search
to pass).
Is this normal? A device is sending the QNX box UDP packets but they are
making it to the application.
I"m trying to understand a strange behavior. The device is sending UDP at
steady rate (12K packets a seconds). io-net will for use less then 1% for 4
secondes then ramp to 40% for about 3 secondes then back to 1%. The
application receiving the packet seems fine.
Regards,
-seanb
“Sean Boudreau” <seanb@qnx.com> wrote in message
news:eem57o$oco$1@inn.qnx.com…
Mario Charest postmaster@127.0.0.1 wrote:
“Sean Boudreau” <> seanb@qnx.com> > wrote in message
news:ednthc$csk$> 1@inn.qnx.com> …
Mario Charest postmaster@127.0.0.1 wrote:“Mario Charest” postmaster@127.0.0.1 wrote in message
news:eda5h2$4si$> 1@inn.qnx.com> …
Where could one found a description of item reported by netstat -n.
I’m
interrested in PCB hash missed?meant netstat -s
A packet came in and there was no connect()ed socket
on this end. The lists of connected sockets are
searched via a hash (all 4 of the local ip, remote ip,
local port and remote port must match for this search
to pass).Is this normal? A device is sending the QNX box UDP packets but they
are
making it to the application.It can be. If you don’t connect() a udp socket it will
receive all packets sent to the bound local port.
Does that mean that not doing a connect increase CPU usage versus doing a
connect?
I"m trying to understand a strange behavior. The device is sending UDP
at
steady rate (12K packets a seconds). io-net will for use less then 1%
for 4
secondes then ramp to 40% for about 3 secondes then back to 1%. The
application receiving the packet seems fine.Doesn’t ring a bell. Any other interfaces / protcols involved?
Aside phindows no, but the strange thing is that my application (which for
the moment
simply does a recvfrom in a loop) follow the same curve. I’m trying to use
the
system profile to figure out what is going, but so far no luck.
Regards,
-seanb
It can be. If you don’t connect() a udp socket it will
receive all packets sent to the bound local port.
Hum, I can’t use connect because multiple device will be sending UDP packets
to the same port.
Thanks.
- Mario