The problem was really a MTU issue, we changed the DHCP agent configuration to change the MTU as described in the section *To configure the DHCP agent* ( http://docs.openstack.org/kilo/install-guide/install/apt/content/neutron-network-node.html ) and now it's working!
Thanks a lot Rahul! 2015-10-26 21:12 GMT-03:00 Rahul Sharma <[email protected]>: > Since ping and telnet works to machine B, then it seems to be an MTU > issue. Try sending ping packets of large size, they might fail in your > case. You can see what is happening in ssh by doing "ssh -vvv machineB" and > will see that its unable to get the key ( > 1500 in length). There are > different MTU fixes available, you can find them on the internet. When we > faced such issue, we disabled Large Receive Offload(LRO) on the nic of > compute node. In your case, it might be issue with nic, or maybe with > upstream switch, you can debug it out and see if it works. > > Thanks. > > *Rahul Sharma* > *MS in Computer Science, 2016* > College of Computer and Information Science, Northeastern University > Mobile: 801-706-7860 > Email: [email protected] > Linkedin: www.linkedin.com/in/rahulsharmaait > > On Mon, Oct 26, 2015 at 5:45 PM, Marcos Nóbrega <[email protected] > > wrote: > >> Hello all, >> >> We are using OpenStack Kilo in the following deployment: >> >> Computer A: >> >> - Controller node >> - Network node >> - Compute node >> - Only one network interface >> >> Computer B: >> >> - Compute node >> - Only one network interface >> >> Instances created in the computer A works fine, and we are able to >> connect via SSH, but instances from computer B we can't connect, only ping >> and telnet works. >> >> If anyone could help us with tips to investigate this problem. >> >> Thanks. >> >> >> >> -- >> *Marcos Nóbrega* >> Desenvolvedor no Laboratório de Sistemas Distribuídos (LSD-UFCG) >> Bacharel em Sistemas de Informação (FIP) >> >> >> _______________________________________________ >> Mailing list: >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> Post to : [email protected] >> Unsubscribe : >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> >> > -- *Marcos Nóbrega* Desenvolvedor no Laboratório de Sistemas Distribuídos (LSD-UFCG) Bacharel em Sistemas de Informação (FIP)
_______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : [email protected] Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
