Michael and I have developed a fix here at
the IETF.
at least with pf=0 dac=1 and off=1
We will next test with pf..
I will commit the code to Head...
I can also send you a 7.x version tarball.. not sure if it will
compile (it will work for 7.1 I know for sure)
Let me know if you want such a tar..
R
On Mar 23, 2009, at 6:20 AM, Andrew Chen wrote:
Hi,
We have some problems when we tried to send data using CMT-SCTP.
Actually, we are not sure if we do enable CMT functionalities. We
set up two PCs with FreeBSD-7.0. Each PC has two NICs and two IPs.
One is public and the other is private. We wrote simple FTP server
and client programs. On both sides, local addresses are bound as
INADDR_ANY. According to http://tools.ietf.org/html/draft-ietf-tsvwg-sctpsocket-14#section-4.1.5
, if we bind INADDR_ANY and then call connect(), the multi-homing
capability of SCTP is automatically enabled. Further, we also turn
on sysctl states by setting
sysctl net.inet.sctp.cmt_pf=1
sysctl net.inet.sctp.cmt_use_dac=1
sysctl net.inet.sctp.cmt_on_off=1
Then we start transmission and capture the traffics. Unfortunately,
the captured packet shows data were transmitted on primary path and
there were only heartbeat/HB ACKs on the other path.
To our knowledge, to use CMT, the only things we have to do is to
establish a multihomed association, and turn on the sysctl options.
Can anyone point out something we did wrong or steps we missed?
Thanks in advance.
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Randall Stewart
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