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VMotion slow in transmit

Hi,

Anyone got an idea why VMotion could be really slow (~4000kbps) in transmit (source) but work fine in receive (destination)?

I tried recreating the VMotion vmkernel but it's useless.

The uplinks negotiate at 10Gbps and use native drivers.

We did some NIC changes but 2 other similar hosts (same hardware/driver/firmware) that got the same treatment are working fine.

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