Hi Yi-Shou You could possibly use the following to approx for RTT time: timestamp(barrier_reply) - timestamp(fwd pkt_in), assuming the barrier_request is sent with the pkt_out of the reverse direction ICMP.
On Wed, May 11, 2011 at 8:16 AM, false <[email protected]> wrote: > Hi, > > I have a problem about the nox controller get rtt time from NetFPGA based > OpenFlow switch. > Assuming there are two hosts connecting to a LAN network is established by > NetFPGA > based OF switch, and hosts can not communication with nox controller which > control the NetFPGA based OF swtich because hosts do not connect to > internet. > Then, if hosts can not tell rtt time to nox controller, does the nox > controller has any methods can know rtt time between hosts? > > Any suggest will be helpful! Thank you! > > Yi-Shou >
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