Update limits on overlay networks

[hoerup]

A while ago there were issues with loadbalancer 1) on large overlay networks, so a limit in overlay size was added to documentation in 2)
This issue has since been resolved, and according to 3) the limitations are no longer necessary.

The documentation should be updated accordingly

1. Swarm Mode at Scale moby/moby#30820
2. Add info about network size limits for swarm mode #5208
3. Improve scalability of the Linux load balancing moby/moby#37372 (comment)

[clintmod]

@thaJeztah Is this true that a /24 is no longer required for an overlay network?

If so let me know and I can work on a PR for the docs.

The part of the docs in question:

You should create overlay networks with /24 blocks (the default), which limits you to 256 IP addresses, when you create networks using the default VIP-based endpoint-mode. This recommendation addresses limitations with swarm mode.

https://docs.docker.com/engine/reference/commandline/network_create/#overlay-network-limitations

[chey]

It would be good if the documentation included what version of docker this changed.

[docker-robott]

There hasn't been any activity on this issue for a long time.
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/lifecycle stale

[hoerup]

Still relevant

[fannyfan414]

Any updates?

[fannyfan414]

/remove-lifecycle stale

[fannyfan414]

Any news?

[docker-robott]

There hasn't been any activity on this issue for a long time.
If the problem is still relevant, mark the issue as fresh with a /remove-lifecycle stale comment.
If not, this issue will be closed in 14 days. This helps our maintainers focus on the active issues.

Prevent issues from auto-closing with a /lifecycle frozen comment.

/lifecycle stale

[hoerup]

/remove-lifecycle stale