OVS version 1.2.2 following commands run on machine-
first mahine- ovs-vsctl set Interface br0 cfm_mpid=1 cfm_remote_mpid=2 second machine-- ovs-vsctl set Interface br0 cfm_mpid=2 cfm_remote_mpid=1 -Ed On Fri, Mar 16, 2012 at 8:53 AM, edward wilson <edward.wilson2...@gmail.com>wrote: > > > First machine- > > ovs-appctl cfm/show br0 > > MPID 1: fault recv_fault > > Interval: 1000ms > > Next CCM tx: 403ms > > Next fault check: 2744ms > > > > Remote MPID 2: fault > > Recv since check: false > > > > Second machime- > > ovs-appctl cfm/show br0 > > MPID 2: fault recv_fault > > Interval: 1000ms > > Next CCM tx: 403ms > > Next fault check: 2744ms > > > > Remote MPID 1: fault > > Recv since check: false > > -Ed > > On Thu, Mar 15, 2012 at 10:12 PM, Ben Pfaff <b...@nicira.com> wrote: > >> Maybe you should show us your configuration. It seems likely that >> there is just some misunderstanding. >> >> On Thu, Mar 15, 2012 at 05:30:19PM +0530, edward wilson wrote: >> > when I am creating cfm between two ovs ( one physical and other VM on >> same >> > machine) , CCM packet are with RDI bit set. >> > connection is not making between MPs. >> > both are on same bradcast domain. >> > >> > tried with two physical machines with OVS by giving same vlan id, but >> > result is same. >> > >> > -ed >> > >> > On Sat, Feb 18, 2012 at 2:27 AM, Ethan Jackson <et...@nicira.com> >> wrote: >> > >> > > > Ed- same broadcast domain , you mean- I have to assign all MPs in >> one >> > > vlan >> > > > or same network should be provided. >> > > >> > > The CFM module sends multicast CCMs on the interface upon which it's >> > > configured. Presumably, multicast/broadcasts packets egressing this >> > > interface can reach some set of other hosts on the network. This set >> > > can be restricted by using VLANs or other strategies. How this is >> > > done precisely, is out of the scope of the CFM module. The important >> > > thing is, when the CFM module broadcasts CCMs, all other MPs that >> > > these CCMs reach need to have the same transmission interval. >> > > >> > > >> > 2) along with that I want to know how can I see the current timer >> > > value >> > > >> > by >> > > >> > any show command for particular MPids, I didn' tfind any command >> for >> > > >> > this. >> > > >> >> > > >> ovs-appctl cfm/show will give you information about currently >> configured >> > > >> CFM. >> > > >> > > The CFM module doesn't maintain a separate timer for each remote MP. >> > > Instead it maintains one timer that triggers at an interval of 3.5 >> > > times the transmission interval. When the CFM module receives a CCM >> > > from a remote MP, it sets a flag for this remote MP indicating the >> > > reception. When the timer triggers, any MPs which are not flagged >> > > are considered unreachable and removed. All of this information (the >> > > timers, the set of reachable MPs, the reception flag) is available >> > > from the ovs-appctl cfm/show command. >> > > >> > > It's also worth noting that we don't implement the full 802.1ag >> > > specification. We implement a much simplified version which maintains >> > > the packet format, but is quite a bit less sophisticated than the >> > > standard. >> > > >> > > Ethan >> > > >> > > >> > > >> > > > >> > > > >> > > > Ed- this command shows the configured CFM,my doubt was when CCM >> received >> > > > then timer gets restarted then how can I check /verfiy this that >> timer >> > > has >> > > > been restarted for a MP or MPs >> > > >> >> > > >> >> > > >> Ethan >> > > >> >> > > >> >> > > >> >> > > >> > >> > > >> > Regards, >> > > >> > Ed >> > > >> > >> > > >> > _______________________________________________ >> > > >> > discuss mailing list >> > > >> > discuss@openvswitch.org >> > > >> > http://openvswitch.org/mailman/listinfo/discuss >> > > >> > >> > > > >> > > > >> > > >> >> > _______________________________________________ >> > discuss mailing list >> > discuss@openvswitch.org >> > http://openvswitch.org/mailman/listinfo/discuss >> >> >
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