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2013-10-28 08:57:29 -0500 commented answer vlan translation in Quantum

Yes, but I don't understand why doing such a translation/mapping... Maybe is it necessary to allow the independence from the actual implementation of the network segregation on the Data Network (VLAN, GRE, VXLAN...) ?

2013-10-24 04:12:40 -0500 commented answer l2tpV3 on Ubuntu Precise

I filed the bug on launchpad. However, it seems that Ubuntu 13.10 is supporting it. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1235914%3C/p%3E (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1235914)

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2013-10-23 18:17:31 -0500 asked a question vlan translation in Quantum

I don't understand tha VLAN translation mechanism. In the http://docs.openstack.org/network-admin/admin/content/under_the_hood_openvswitch.html (OS official guide) it's said the net01 and net02 have VLAN ID 1,2 while VLAN 101,102 are EXPLICITY specified in the quantum CLI commands.
Why the need to change the VLAN ID internally, that is inside the compute node and inside the network node?

Can anyone please explain me the mechanism and the reason behind this?

I'm using Openstack Grizzly.

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2013-10-17 08:01:33 -0500 asked a question colored log

Is it possible to see colored log files in /var/log/... ? I'm not using Devstack.

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2013-08-08 10:08:05 -0500 asked a question l2tpV3 on Ubuntu Precise

I'm trying to implement a first prototype of cloud federation, and I'm using l2tpV3 (via the "ip l2tp" command) to create a L2 ethernet unmanaged tunnel (over L3) between two hosts with public IP addresses. If I use two hosts with Fedora 18 it works like a charm, but when I try to use the command with Ubuntu 12.04 it gives me an error like this: RTNETLINK answers: No such file or directory Error talking to the kernel

After some research it seems that some of the kernel module l2tp_* are missing, but I don't know how to install them.

sudo modprobe l2tp_eth
FATAL: Module l2tp_eth not found.

Update: it seems that the command ip l2tp is disappeared completely from Ubuntu 12.04 :(

reference: