api-ref: describe which protocols are enabled for stateless SG

This behavior matches what ML2/OVS implementation does and what we
intend to implement for ML2/OVN. More than that, a decision was made
during vPTG to make the behavior part of api-ref to facilitate
cross-backend consistency.

Related-Bug: #2006949
Related-Bug: #2009053
Change-Id: Ic633eedd9f0d320d9ad0c27a72f07b1b016d7ba3
This commit is contained in:
Ihar Hrachyshka 2023-03-29 16:22:36 -04:00
parent eeec3633b9
commit 8337580561
1 changed files with 8 additions and 0 deletions

View File

@ -39,6 +39,14 @@ The existing security groups will all be considered as stateful. Update of the
``stateful`` attribute is allowed when there is no port associated with the
security group.
Regardless of rules defined for a stateless security group, the following
protocols are expected to work: ARP, DHCP, IPv6 SLAAC / DHCPv6 stateless
address configuration, IPv6 Router and Neighbour Discovery.
Note: metadata service is not enabled by default. If your workload requires
metadata for configuration, make sure to create a security group rule that
would allow HTTP replies from the metadata service IP address / port pair.
Shared filtering extension
==========================