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The Cisco Nexus 7000 M1-Series 32-Port 10 Gigabit Ethernet Module with XL Option has a number of key features that are designed to enable flexible deployment and support for environments requiring the highest performance and a comprehensive feature set. With an optional Scalable Feature license, the module can operate in the enhanced XL mode, which enables use of the full forwarding table, essential for large-scale deployments such as Internet peering environments. This larger FIB table can support multiple copies of the full Internet route table for use in Internet-facing deployments with Virtual Routing and Forwarding (VRF) and virtual device context (VDC) support. The capability to operate in either non-XL or XL mode makes this module extremely flexible for many types of networking environments, without requiring a hardware module change or upgrade, and delivers a lower total cost of ownership (TCO).

The 32-port module supports a broad range of transceiver modules, allowing deployment in various types of situations, including Twinax CX1 cable for in-rack or rack-to-rack links in the data center, long-reach intersite deployments over single-mode fiber (SMF), and short- and medium-reach deployments over multimode fiber (MMF) for data center and campus environments. The fabric interface on the 32-port module delivers 80 Gbps of bandwidth in each direction.

All Cisco Nexus 7000 I/O modules contain integrated forwarding engines. The M1-XL forwarding engine on the Cisco Nexus 7000 M1-Series 32-Port module is part of the Cisco Nexus 7000 M1-Series forwarding engines. The M1-XL forwarding engine is based on the M1 engine, incorporating larger FIB and access control list (ACL) tables. The module is fully compatible with, and offers feature consistency with, all existing M1 modules