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Given the number of issues with na-arc-3 it was decided to just recreated it from a clone of na-arc-2. Also, we changed the model of na-arc-3's vnet5 interface on naasc-vs-3 from rtl8139 to virtio to match all the other na-arc-* nodes. Finally we changed the MTU of na-arc-3 eth0 to from 9000 to 1500. This is different than all the other na-arc-* nodes but it was either that or change the p5p1.120 and br97 on naasc-vs-3 from 9000 to 1500 which my have impacted other VM guests on that host. This all happened on 2022-08-11 and since then iperf3 tests between all the na-arc-* nodes have shown expected performance.
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