The Cisco MGX 8850 AXSM Enhanced (AXSM-E) ATM Switching Module is a high-density, double height service module for use in the Cisco MGX 8850 Multiservice Switch in combination with the high-capacity PXM-45 processor switching module. Up to 12 AXSM modules can be accommodated in the MGX 8850 to provide the aggregation required by service providers. The AXSM Enhanced ATM Switching Module, in conjunction with the PXM-45, AXSM (Broadband ATM Switch Service Module), and Route Processor Module (RPM), offers the industry's most advanced and reliable ATM networking features, such as Private Network-Network Interface (PNNI), switched virtual circuit/path (SVC/SVP), soft permanent virtual circuit/path (SPVC/SPVP), and Multiprotocol Label Switching (MPLS).