Thanks Martin OK, I got it.
Regards Ian 在 2010年4月16日上午3:20，Martin Casado <[email protected]> 寫道： > LLDP is simply used to determine link-state. There is no information > gathered from the LLDP packet itself. Read discovery.py for more details. > >> Thanks kk yap. >> That's why I feel confusion. >> >> So, using the LLDP packet to probe the environment then what >> information will be get? >> or what format event will receive in controller. >> >> Because I really want to know it, but don't have any manner or spec. >> can explain it. >> >> >> Regards >> Ian >> >> >> 2010/4/15 kk yap <[email protected]>: >> >>> Hi ian, >>> >>> If you follow the thread, this proposal was bumped. So, no... the >>> controller sends the LLDP. >>> >>> Regards >>> KK >>> >>> On 14 April 2010 21:41, 曾毓元 <[email protected]> wrote: >>> >>>> Thanks Martin, >>>> >>>> So it just to do this work ? and other question, >>>> (Q1) What information will be get? Such as, this switch IP, the >>>> neighbor node IP, or something. >>>> (Q2) This LLDP packet sends by who? Is controller or switch. >>>> (Q3) If it is switch to do this work, then it is every switch to do >>>> it? or just one ... >>>> >>>> Because I have ever see this in the openflow switch website. >>>> http://www.openflowswitch.org/wk/index.php/OpenFlow_v1.0#Neighbor_Discovery >>>> >>>> Sorry, I really want to know. >>>> >>>> Thank you so much. >>>> >>>> >>>> >>>> Regards >>>> Ian >>>> >>>> >>>> >>>> 2010/4/15 Martin Casado <[email protected]>: >>>> >>>>> That pretty much describes it. Nox uses a very simplistic discovery >>>>> method >>>>> of sending out a unique LLDP packet per connected switch port. On receipt >>>>> of an LLDP packet it can then determine the link-state based on the >>>>> incoming >>>>> port and switch that the packet was received on. >>>>> >>>>> .martin >>>>> >>>>> >>>>>> Dear all: >>>>>> Sorry to bother to everyone. >>>>>> But I am very interested about the NOX Controller can use discovery to >>>>>> find the complete topology. >>>>>> But the related sites are not very detailed description of its >>>>>> process. Anyone can tell me in detail how it is done? >>>>>> >>>>>> research >>>>>> http://noxrepo.org/manual/app-index.html#discovery >>>>>> >>>>>> it only say: >>>>>> Discovery sends LLDP packets out of every switch interface. It uses >>>>>> received LLDP packets to detect switch links, at which time it >>>>>> generates Link_events. >>>>>> >>>>>> >>>>>> Regards >>>>>> Ian >>>>>> >>>>>> _______________________________________________ >>>>>> nox-dev mailing list >>>>>> [email protected] >>>>>> http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org >>>>>> >>>>>> >>>>> >>>> _______________________________________________ >>>> nox-dev mailing list >>>> [email protected] >>>> http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org >>>> >>>> > > _______________________________________________ nox-dev mailing list [email protected] http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
