starlingx/docs
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docs/doc/source/planning/kubernetes/shared-vlan-or-multi-netted-ethernet-interfaces.rst
Ron Stone 3143d86b69 Openstack planning 
Updates for patchset 2 review comments
Changed link depth of main Planning index and added some narrative guidance
Added planning/openstack as sibling of planning/kubernetes
Related additions to abbrevs.txt
Added max-workers substitution to accomodate StarlingX/vendor variants

Signed-off-by: Ron Stone <ronald.stone@windriver.com>
Change-Id: Ibff9af74ab3f2c00958eff0e33c91465f1dab6b4
Signed-off-by: Stone <ronald.stone@windriver.com>
2021-01-25 08:36:47 -05:00

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Shared (VLAN or Multi-Netted) Ethernet Interfaces

The management, , cluster host, and other networks for container workload external connectivity, can share Ethernet or aggregated Ethernet interfaces using tagging or IP Multi-Netting.

The internal management cluster host, and other external networks, can use tagging or IP Multi-Netting, allowing them to share an Ethernet or aggregated Ethernet interface with other networks. If the internal management network is implemented as a -tagged network then it must be on the same physical interface used for booting.

The following arrangements are possible:

  • One interface for the internal management network and internal cluster host network using multi-netting, and another interface for (on which container workloads are exposed externally). This is the default configuration.
  • One interface for the internal management network and another interface for the external and external cluster host (on which container workloads are exposed externally) networks. Both are implemented using tagging.
  • One interface for the internal management network, another interface for the external network, and a third for an external cluster host network (on which container workloads are exposed externally).
  • One interface for the internal management network and internal cluster host network using multi-netting, another interface for and a third interface for an additional network on which container workloads are exposed externally.

For some typical interface scenarios, see : Hardware Requirements <starlingx-hardware-requirements>.

Options to share an interface using tagging or Multi-Netting are presented in the Ansible Bootstrap Playbook. To attach an interface to other networks after configuration, you can edit the interface.