4df8d9a701
This changes the 'plug' and 'plug_new' interfaces of the LinuxInterfaceDriver to accept an MTU argument. It then updates the dhcp agent and l3 agent to pass the MTU that is set on the network that the port belongs to. This allows it to take into account the overhead calculations that are done for encapsulation types. It's necessary for the L3 agent to have the MTU because it must recognize when fragmentation is needed so it can fragment or generate an ICMP error. It's necessary for the DHCP agent to have the MTU so it doesn't interfere when it plugs into a bridge with a larger than 1500 MTU (the bridge would reduce its MTU to match the agent). If an operator sets 'network_device_mtu', the value of that will be used instead to preserve previous behavior. Closes-Bug: #1549470 Closes-Bug: #1542108 Closes-Bug: #1542475 DocImpact: Neutron agents now support arbitrary MTU configurations on each network (including jumbo frames). This is accomplished by checking the MTU value defined for each network on which it is wiring VIFs. Co-Authored-By: Matt Kassawara <mkassawara@gmail.com> Change-Id: Ic091fa78dfd133179c71cbc847bf955a06cb248a
Welcome!
You have come across a cloud computing network fabric controller. It has identified itself as "Neutron." It aims to tame your (cloud) networking!
External Resources:
The homepage for Neutron is: http://launchpad.net/neutron. Use this site for asking for help, and filing bugs. Code is available on git.openstack.org at <http://git.openstack.org/cgit/openstack/neutron>.
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- Neutron API Reference:
-
http://docs.openstack.org/api/openstack-network/2.0/content/
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