11ded0cf7e
Applied M. Camp's comments on patchset 4. Also, some additional formatting changes such as tidying line ends <= 79 characters, reformatting very wide ascii table as list table to control line widths, etc. Resolved conflict in _includes/data-networks-overview.rest Change-Id: I8a2a80f21d3630849900e85dc2495da1668648af Signed-off-by: Ron Stone <ronald.stone@windriver.com> Signed-off-by: Stone <ronald.stone@windriver.com>
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45 lines
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.. hyg1467916541021
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.. _changing-the-mtu-of-a-data-interface-using-the-cli:
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================================================
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Change the MTU of a Data Interface Using the CLI
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================================================
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You can change the MTU value for a data interface from the OpenStack Horizon
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Web interface or the CLI.
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.. rubric:: |context|
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The MTU must be changed while the worker host is locked.
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You can use CLI commands to lock and unlock hosts, and to modify the MTU
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on the hosts.
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.. code-block:: none
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~(keystone_admin)]$ system host-lock <nodeName>
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~(keystone_admin)]$ system host-if-modify <nodeName> <interface name> --imtu <mtu_size>
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~(keystone_admin)]$ system host-unlock <nodeName>
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where:
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**<nodename>**
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is the name of the host
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**<interface name>**
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is the name of the interface
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**<mtu\_size>**
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is the new MTU value
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For example:
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.. code-block:: none
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~(keystone_admin)]$ system host-if-modify worker-0 enp0s8 --imtu 1496
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.. note::
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You cannot set the MTU on an openstack-compute-labeled worker node
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interface to a value smaller than the largest MTU used on its data
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networks. |