On the Dashboard remove the heart beat IP addresses from the IP statistics section.
On the Dashboard remove the fail over heart beat IP addresses from the 'Per IP Address Statistics'.They don't really belong with the rest of the network devices as they only communicate between themselves, and won't be sending data externally. Also the data volumes are well above what other nodes generate.
They could be relocated to the 'Interface and Host Bandwidth' section, including a separate section for 'Fail Over' similar to how 'SSL VPN' appears here.
Failing that, group them together in their own section.