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New Contributor
Posts: 2
Registered: ‎06-20-2013
Accepted Solution

Rate Class limits in a two node active/active cluster

On a two node active/active Stingray cluster (8.0) are rate class limits applied per traffic manager or across the cluster?

Frequent Contributor
Posts: 321
Registered: ‎11-29-2012

Re: Rate Class limits in a two node active/active cluster

Hi Gavin,

The rate class limits are counted and applied per-Stingray-instance.  In an active/active cluster, one option would be to configure the rate limit to half the value you want; assuming even traffic distribution across the cluster, this would give you the effect you need.  If you need a very strictly-applied rate limit, you would be better to run active-passive with respect to the traffic that should be limited.

One additional observation - the bandwidth classes can be configured to operate across the cluster; in an active-active scenario, the traffic managers continually negotiate to get an appropriate share of the total bandwidth allocation.

Best regards

Owen

New Contributor
Posts: 2
Registered: ‎06-20-2013

Re: Rate Class limits in a two node active/active cluster

Hi Owen,

Thanks for the reply. Is this stated in the documentation anywhere?

Thanks

Gavin

Frequent Contributor
Posts: 321
Registered: ‎11-29-2012

Re: Rate Class limits in a two node active/active cluster

> Is this stated in the documentation?

Only by omission. I've updated Feature Brief: Bandwidth and Rate Shaping in Stingray Traffic Manager to make it known.

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