[UDATE] All work completed to plan.
We plan on making some further changes to a couple of our core network routers to isolate and correct a service setting that is causing a few BGP issues.
This may mean a few blips in routing tables as the changes are disseminated and an occasional up-tick in latency as routes converge and stabilise but we expect no downtime or any significant service issues.
If this planning changes, we will update this ticket