Hello, ok , but i have taken now two hosts , both have same configurations, I mean
- Host-A , is bonded to bond0 with eth0 and eth1, trunked with subnet (15,16,17) - Host-B also has same configuration as above. When I am trying to live migrate guest servers from Host-A to Host-B and vice-e-versa after live migration , after 5 munites the guest server is pingable. I think it is due to arp cache. That is why , For the time being as per the suggestion by someone here, before live migration , I am staring pinging the guest server from Host-A and Host-B , then starting live migration, In that case , live migration is ok, 1 sec stop in between. But this process is ok, for temporary basis can not be acceptable for the long run. Any advice is really appreciated. Thanks again --- On Thu, 7/8/10, Langley, Morgan (GE Capital) <[email protected]> wrote: From: Langley, Morgan (GE Capital) <[email protected]> Subject: Re: [rhelv5-list] Ping of the guest delay after live migration To: "Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list" <[email protected]> Date: Thursday, July 8, 2010, 4:32 AM Hello, Your problem is probably caused by using different interfaces on the two hosts. You should create bond0 on both of them (even though on Host-A it would contain only one interface - eth1). That should help. Regards, Morgan From: [email protected] [mailto:[email protected]] On Behalf Of Srija Sent: Friday, July 02, 2010 10:48 PM To: Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list Subject: [rhelv5-list] Ping of the guest delay after live migration Hi , I am getting the delay in pinging (from different network) , the guest after live migration . Here is the scenario: 0. OS : RHEL5.4 86_64 1. Host-A. Port eth1 , it is trunked with three subnets xxx.xx.15.xxx xxx.xx.16.xxx xxx.xx.17.xxx Guest created on 15, 16 ,17 subnets. Gust15-A created on subnet 15 Gust16-A created on subnet 16 Gust17-A created on subnet 17 2. Host-B. Port eth0 and eth1 are bonded to bond0 Bond0 is trunked, with three subnets. xxx.xx.15.xxx xxx.xx.16.xxx xxx.xx.17.xxx Guest created on 15, 16 ,17 subnets. Gust15-B created on subnet 15 Gust16-B created on subnet 16 Gust17-B created on subnet 17 I have used the mode option in /etc/modprobe.conf as options bond0 mode=1 miimon=100 , As because mode=4 did not work, It seems the link aggregation is not properly set or something else. As the switch configuration is the part of different team, I can't explain it clearly here. But with mode=1 , it is working at this stage. 3. I am trying to live migrate Guest15-A and other guests to Host-b. Migration is ok. But,there is 5 munites delay. The guests are pingable only after 4/5 munites from different network after migration. Can anyone please advice , where to check? Do you think it is the switch configuration issues? If server side configuration issue then I can do it. If it is switch side issues , please give me the pointers or advice , so that I can discuss with the network team. If more explanation is needed , please let me know. Thanks in advance. -----Inline Attachment Follows----- _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
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