| 2018-09-06 13:51:06 |
Chris MacNaughton |
bug |
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added bug |
| 2018-09-06 13:51:20 |
Chris MacNaughton |
bug task added |
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charm-neutron-gateway |
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| 2018-09-06 13:53:27 |
Dmitrii Shcherbakov |
bug task added |
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charm-neutron-openvswitch |
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| 2018-09-06 13:53:44 |
Dmitrii Shcherbakov |
tags |
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cpe-onsite |
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| 2018-09-06 13:55:50 |
Dmitrii Shcherbakov |
description |
The file created to connect the veth to the bridge in https://github.com/juju/charm-helpers/blob/master/charmhelpers/contrib/network/ovs/__init__.py#L35-L40 needs additional lines to deal with networks using differing MTUs. On a jumbo-frame network, the guests connected through the gateway will be unable to receive large packets without adding in:
pre-up ip link set veth-br0 mtu 9000
pre-up ip link set veth-br-ex mtu 9000
pre-up ip link set br0 mtu 9000 |
The file created to connect the veth to the bridge in https://github.com/juju/charm-helpers/blob/master/charmhelpers/contrib/network/ovs/__init__.py#L35-L40 needs additional lines to deal with networks using differing MTUs. On a jumbo-frame network, the guests connected through the gateway will be unable to receive large packets without adding in:
pre-up ip link set veth-br0 mtu 9000
pre-up ip link set veth-br-ex mtu 9000
pre-up ip link set br0 mtu 9000
Note: A linux bridge interface MTU is set to the lowest MTU setting of any interface that is a member of that bridge. veth interfaces get 1500 setting from the linux kernel if not set explicitly which causes the linux bridge with MTU setting of 9000 to drop MTU to 1500. |
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| 2018-09-06 14:10:23 |
Dmitrii Shcherbakov |
summary |
When attaching neutron-gateway to abridge onto a jumbo-framed network, the veth is 1500 |
[18.08] data-port + veth + linux bridge handling does not set up MTU properly |
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| 2018-09-06 14:13:06 |
Dmitrii Shcherbakov |
bug |
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added subscriber Dmitrii Shcherbakov |
| 2018-09-12 04:13:37 |
Dominique Poulain |
bug |
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added subscriber Dominique Poulain |
| 2018-10-18 11:04:51 |
James Page |
charm-helpers: status |
New |
Triaged |
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| 2018-10-18 11:04:53 |
James Page |
charm-neutron-gateway: status |
New |
Triaged |
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| 2018-10-18 11:04:55 |
James Page |
charm-neutron-openvswitch: status |
New |
Triaged |
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| 2018-10-18 11:04:56 |
James Page |
charm-helpers: importance |
Undecided |
Medium |
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| 2018-10-18 11:04:58 |
James Page |
charm-neutron-gateway: importance |
Undecided |
Medium |
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| 2018-10-18 11:04:59 |
James Page |
charm-neutron-openvswitch: importance |
Undecided |
Medium |
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| 2019-04-09 16:36:19 |
Nobuto Murata |
bug |
|
|
added subscriber Nobuto Murata |
