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. The AXSM delivers connectivity from T1/E1 to OC-12c/STM-4. 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).