[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] about network live connection during migration
Thank youand you say ,"The unsolicited ARP is generated by the network frontend whenever it is brought up, as would be the case upon resume." that is , the guestos should be aware of its suspend-and-resume ,but xen maybe support the transparent migration for the guestos, that is ,the guestos does not know itself has been suspended ,is it? but may be some action did the same thing in the net backend, is it ?and fake_arp() has not been found, it is helpful ,even though ,i have not found the code could you or someone help mei am still interested in the code for sending The unsolicited ARP after migration Thanks Daniel Stodden åé: On Sun, 2008-03-09 at 10:50 +0800, tgh wrote:hiI try to understand to the mechanism of live migration, and I read the code ,and have some confusion about the network live connection during the migration,could you help me, i read the paper about the live migration,it explaine that in a single switched LAN,host sends unsolicited ARP,and in router case, broadcastARP will not be accecpted ,and migratedOS need to sends to the interfaces in the ARPcache,while in a switched net,migrated OS holds the same MAC address,and network switch could detect the change of location, i am confused about where the code for all of these , could you give me some more detailed explanation or tell me where the code for theseThe unsolicited ARP is generated by the network frontend whenever it is brought up, as would be the case upon resume. look out for something i believe is called fake_arp (?) in netfront. This is a very simple operation, btw. Unicasting to peers listed in the ARP cache is, to my knowledge, not performed. I believe the paper just outlines what the alternatives would look like. regards, daniel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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