[9ZJL5L] Network config tweaking

Making small network config changes at 22:30 Sep 30 to increase resilience. We do not foresee any issues, but there may be moments of latency or packetloss as topologies adapt. All work will be concluded by 23:00.

Updates

[XPEBGA] Network tweaking concluded with no incident

Network tweaking concluded in the agreed window, with no effects on any service.