group.of.nepali.translators team mailing list archive

[Kamal Mostafa <kamal@xxxxxxxxxxxxx>]

** Tags added: bot-stop-nagging

** Changed in: linux (Ubuntu)
       Status: Incomplete => New

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Summary changed:

- [XENAIL] net: updates to ethtool and virtio_net for speed/duplex support
+ [Xenial] net: updates to ethtool and virtio_net for speed/duplex support

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https://bugs.launchpad.net/bugs/1581132

Title:
  [Xenial] net: updates to ethtool and virtio_net for speed/duplex
  support

Status in linux package in Ubuntu:
  New
Status in linux source package in Xenial:
  New

Bug description:
  Post 4.4, several changes landed upsteam to allow users to set interface
  speed for virtio_net backed devices.  This feature is extremely useful
  for those doing large-scale networking simulations where Ubuntu-based
  VMs are used to simulate hosts.  Not only does it allow hosts to report
  the same speed in simulations for monitoring tools, but it is required
  to simulate 802.3ad bonding where link-speed is reported to the peer
  device.  Without proper speed setting there are cases where establishing
  LACP adjacency is not possible.  

  After this patch setting the link speed and duplex now works just as one would
  expect.  I'm running the kernel that contains this patch for these commands:

  $ sudo ethtool -s enp0s8 speed 100000 duplex full 
  $ sudo ethtool enp0s8
  Settings for enp0s8:
  	Supported ports: [ ]
  	Supported link modes:   Not reported
  	Supported pause frame use: No
  	Supports auto-negotiation: No
  	Advertised link modes:  Not reported
  	Advertised pause frame use: No
  	Advertised auto-negotiation: No
  	Speed: 100000Mb/s
  	Duplex: Full
  	Port: Other
  	PHYAD: 0
  	Transceiver: internal
  	Auto-negotiation: off
  	Link detected: yes

  I've already submitted patches to the kernel-team mailing list.  Those
  patches can be found in this thread: https://lists.ubuntu.com/archives
  /kernel-team/2016-May/077286.html

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