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AWS CSR t2.medium MaxTu Drops

Hi,

 

Currently trying to deploy Cisco CSRs into AWS using the t2.medium instance type but experiencing poor performance. The issue appears to be with the MaxTu drops counter increasing, From a client perspective we see lots of packet loss, duplicate Acks and retransmissions.

 

Increasing the instance to a c4.large seems to stop the MaxTu drops from occurring but still see occasional packet loss, but nowhere near as bad as before.

 

This shouldn't be a license or throughput issue as we're using the license included AMIs

 

Anybody else seen this and have any idea why this occurs and what can be done to prevent it on a t2.medium instance?

 

Thanks

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