This read-only INTEGER, though its source description is empty, follows the same percentage-of-PPE-memory design as the documented ppeBridgingMemory object, indicating it reports the share of PPE memory currently allocated to IP/IPX routing rather than bridging. An administrator reads it to see the routing-side memory allocation directly rather than computing it as the complement of ppeBridgingMemory. For example, the admin checks ppeRoutePercent alongside ppeBridgingMemory after a configuration change to confirm the two figures still sum to the expected total memory split.