H3C Technologies H3C S7500E Series Switches - Manual (Page 265)

15-3
z Route entries half reduction on an LPU means that the LPU can accommodate only half the
number of original routes after you enable URPF.
z If the number of route entries on an LPU exceeds half the number of route entries that the LPU
can accommodate, the URPF function cannot be enabled, which avoids loss of route entries and
packets.
z For details about the route extension mode, refer to Device Management Configuration in the
Fundamentals Configuration Guide.