The recommendations for the LNS support on ESA are:
The entire ESA should be dedicated to the LNS application.
Dedicating all cores and memory for a single VM can allow higher throughput per L2TP session while dividing the cores and memory among VMs can allow a higher number of L2TP sessions. Nokia recommends dividing the ESA into a maximum of 2 VMs with an equal number of cores and memory to allow a higher number of L2TP sessions. Contact your local Nokia representatives for more information.
The limitations of the LNS support on ESA are:
This feature is supported on both FP3 and FP4-based line cards.
ISA and ESA cannot be used in the same LNS group.