[cisco-voip] Expressway cluster algorithm

[Lelio Fulgenzi]

I’m going to read the responses, but when I opened a TAC case, the engineer explained that there were at least two selection processes in play, which C (or E) to pick, then which neighbour to pick for the traversal.

She said, if you want to be 100% sure during troubleshooting, that you are testing a particular path, you want to put the nodes you don’t want to use into maintenance mode.

Made sense to me at the time.

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Lelio Fulgenzi, B.A. | Senior Analyst
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On Jan 23, 2019, at 3:19 PM, Ryan Huff <ryanhuff at outlook.com<mailto:ryanhuff at outlook.com>> wrote:

Can anyone explain or cite the documents that define the algorithm used to determine which Expressway node in a given cluster is selected to process a call.

You can influence the selection with DNS SRV priority and weight, but does not appear to guarantee which cluster node is selected each time.

Thanks,

Ryan
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