Is SSH the only protocol failing? Have you checked MTU size in your infrastructure?
Regards Diego -- Diego Parrilla <http://www.stackops.com/>*CEO* *www.stackops.com <http://www.stackops.com/> | * [email protected] | +34 91 005-2164 | skype:diegoparrilla On Tue, May 20, 2014 at 6:02 PM, Martinx - ジェームズ <[email protected]>wrote: > Apparently we're all facing the same issue. The fact is, Neutron is too > much complex... > > Back with Havana, we faced this: > https://bugs.launchpad.net/neutron/+bug/1252900 > > But now, with Ubuntu 14.04 + IceHouse, seems to be a different problem. > > "Neutron + GRE or VXLAN", is very hard to stabilize and doesn't scale very > well... > > I'm seeing that it works better with "VLAN / Flat Networks" (i.e. without > using the Neutron Network Node as Instance's default gateway). I'll try it > instead... > > Maybe James Denton, from Rackspace, might help us again! :-P > > Best! > Thiago > > > On 20 May 2014 11:21, Jason Bishop <[email protected]> wrote: > >> >> that happened to me too. maybe same root cause? >> >> see http://ubuntuforums.org/showthread.php?t=2223789 >> >> cheers >> jason >> >> >> >> On Mon, May 19, 2014 at 10:59 PM, Martinx - ジェームズ < >> [email protected]> wrote: >> >>> I managed to login into a Ubuntu Instance via `SPICE Console` and there >>> is more network outages from within it, take a look ("apt-get update" froze >>> too): >>> >>> -- >>> http://i.imgur.com/IeEXIjR.png >>> -- >>> >>> Am I missing something?! >>> >>> >>> On 20 May 2014 02:47, Martinx - ジェームズ <[email protected]> wrote: >>> >>>> Hey Stackers! >>>> >>>> I'm facing a weird network issue here, with *IceHouse* and *Neutron L3*... >>>> Using "Per-Project Router with Private Networks"... >>>> >>>> I am unable to connect via SSH into an Instance, from its own "Project >>>> Namespace Router", look: >>>> >>>> -- >>>> root@net-controller-1:~# ip netns exec >>>> qrouter-c252886a-1fd0-45dd-9e3b-4233786e7960 ssh -i ~/pem >>>> [email protected] -v >>>> OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014 >>>> debug1: Reading configuration data /etc/ssh/ssh_config >>>> debug1: /etc/ssh/ssh_config line 19: Applying options for * >>>> debug1: Connecting to 192.168.1.17 [192.168.1.17] port 22. >>>> debug1: Connection established. >>>> debug1: permanently_set_uid: 0/0 >>>> debug1: identity file /root/pem type -1 >>>> debug1: identity file /root/pem-cert type -1 >>>> debug1: Enabling compatibility mode for protocol 2.0 >>>> debug1: Local version string SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2 >>>> debug1: Remote protocol version 2.0, remote software version >>>> OpenSSH_6.6p1 Ubuntu-2ubuntu1 >>>> debug1: match: OpenSSH_6.6p1 Ubuntu-2ubuntu1 pat >>>> OpenSSH_6.5*,OpenSSH_6.6* compat 0x14000000 >>>> debug1: SSH2_MSG_KEXINIT sent >>>> ... >>>> ... >>>> ...ssh stucked!!! >>>> ... >>>> -- >>>> >>>> The SSH connection froze at "debug1: SSH2_MSG_KEXINIT sent" and it >>>> never establishes... >>>> >>>> From its attached `Floating IP`, the symptom is the same, I can't >>>> connect via SSH into a Instance, I tried it with 12.04 and 14.04, same >>>> result for both... >>>> >>>> The Instance looks good from SPICE Consoles (but I need to login with >>>> "ubuntu user" via network first, using ssh key). >>>> >>>> - >>>> >>>> I'm running tcpdump on both "qr-$INT" and at the Compute Node DATA >>>> NETWORK, to see the GREv0 traffic too, here it is: >>>> >>>> -- >>>> root@net-controller-1:~# ip netns exec >>>> qrouter-c252886a-1fd0-45dd-9e3b-4233786e7960 tcpdump -v -ni qr-eeb0d2f3-42 >>>> >>>> http://paste.openstack.org/show/80969/ >>>> >>>> NOTE: From the line ~16 to 32, SSH was already frozen... >>>> -- >>>> >>>> root@compute-node-1:~# tcpdump -ni eth1 | grep -v IP6 >>>> >>>> http://paste.openstack.org/show/80970/ >>>> -- >>>> >>>> What can I do to deep investigate this?! >>>> >>>> I double checked everything, including OVS bridges, sysctl.conf, `ethtool >>>> --offload ethX gro off` and etc... Don't know what's is wrong... >>>> >>>> I think that this is the last problem I'm facing with IceHouse, I would >>>> like to put it into prod but, I am unable to do it right now... :-/ >>>> >>>> Tks in advance! >>>> >>>> Best, >>>> Thiago >>>> >>> >>> >>> _______________________________________________ >>> 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 >>> >>> >> > > _______________________________________________ > 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 > >
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