it's a Dell S4048T-ON Switch using 10G Ethernet. On Sat, May 23, 2020 at 11:05 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
 |