Hi, It should be ping -M do -s 8972 IP ADDRESS. You can't ping with 9000 size. If you can't ping with 8972 size, then somewhere in the path MTU config is wrong. Regards, Suresh On Sat, May 23, 2020, 1:35 PM apely agamakou <moodymob@xxxxxxxxx> wrote: > Hi, > > Please check you MTU limit at the switch level, cand check other ressources > with icmp ping. > Try to add 14Byte for ethernet header at your switch level mean an MTU of > 9014 ? are you using juniper ??? > > Exemple : ping -D -s 90000 other_ip > > > > Le sam. 23 mai 2020 à 15:18, Khodayar Doustar <doustar@xxxxxxxxxxxx> a > écrit : > > > Problem should be with network. When you change MTU it should be changed > > all over the network, any single hup on your network should speak and > > accept 9000 MTU packets. you can check it on your hosts with "ifconfig" > > command and there is also equivalent commands for other network/security > > devices. > > > > If you have just one node which it not correctly configured for MTU 9000 > it > > wouldn't work. > > > > On Sat, May 23, 2020 at 2:30 PM sinan@xxxxxxxx <sinan@xxxxxxxx> wrote: > > > > > Can the servers/nodes ping eachother using large packet sizes? I guess > > not. > > > > > > Sinan Polat > > > > > > > Op 23 mei 2020 om 14:21 heeft Amudhan P <amudhan83@xxxxxxxxx> het > > > volgende geschreven: > > > > > > > > In OSD logs "heartbeat_check: no reply from OSD" > > > > > > > >> On Sat, May 23, 2020 at 5:44 PM Amudhan P <amudhan83@xxxxxxxxx> > > wrote: > > > >> > > > >> Hi, > > > >> > > > >> I have set Network switch with MTU size 9000 and also in my netplan > > > >> configuration. > > > >> > > > >> What else needs to be checked? > > > >> > > > >> > > > >>> On Sat, May 23, 2020 at 3:39 PM Wido den Hollander <wido@xxxxxxxx> > > > wrote: > > > >>> > > > >>> > > > >>> > > > >>>> On 5/23/20 12:02 PM, Amudhan P wrote: > > > >>>> Hi, > > > >>>> > > > >>>> I am using ceph Nautilus in Ubuntu 18.04 working fine wit MTU size > > > 1500 > > > >>>> (default) recently i tried to update MTU size to 9000. > > > >>>> After setting Jumbo frame running ceph -s is timing out. > > > >>> > > > >>> Ceph can run just fine with an MTU of 9000. But there is probably > > > >>> something else wrong on the network which is causing this. > > > >>> > > > >>> Check the Jumbo Frames settings on all the switches as well to make > > > sure > > > >>> they forward all the packets. > > > >>> > > > >>> This is definitely not a Ceph issue. > > > >>> > > > >>> Wido > > > >>> > > > >>>> > > > >>>> regards > > > >>>> Amudhan P > > > >>>> _______________________________________________ > > > >>>> ceph-users mailing list -- ceph-users@xxxxxxx > > > >>>> To unsubscribe send an email to ceph-users-leave@xxxxxxx > > > >>>> > > > >>> _______________________________________________ > > > >>> ceph-users mailing list -- ceph-users@xxxxxxx > > > >>> To unsubscribe send an email to ceph-users-leave@xxxxxxx > > > >>> > > > >> > > > > _______________________________________________ > > > > ceph-users mailing list -- ceph-users@xxxxxxx > > > > To unsubscribe send an email to ceph-users-leave@xxxxxxx > > > > > > _______________________________________________ > > > ceph-users mailing list -- ceph-users@xxxxxxx > > > To unsubscribe send an email to ceph-users-leave@xxxxxxx > > > > > _______________________________________________ > > ceph-users mailing list -- ceph-users@xxxxxxx > > To unsubscribe send an email to ceph-users-leave@xxxxxxx > > > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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