The value of tmnxMobProfSysPagingBufferLimit specifies the down-link
buffer limit for the idle-user in the Serving Gateway (SGW). The SGW
buffers down-link packets from the Packet Data Network Gateway(PGW) and
indicates the Mobility Management Entity (MME) to page or wakeup
the User Equipment (UE). The buffer is common for all the UE flows.