Cisco SM-X-ES3-16-P EtherSwitch Service Module

The Cisco SM-X-ES3-16-P EtherSwitch Service Module provides 16 Gigabit Ethernet ports with PoE+ (IEEE 802.3at) and integrated Layer 2/3 switching, adding desktop and edge connectivity directly inside Cisco ISR routers. Installed in an internal router service-module slot and managed via Cisco IOS, it supports auto-negotiating 10/100/1000 Mbps and enables PoE power for IP phones, cameras, and wireless access points at the edge. Designed for enterprise branch and campus networks, it is commonly used for network expansion or replacement of faulty service modules in Cisco Integrated Services Routers with SM-X slots; part numbers include MPN SM-X-ES3-16-P and alternate SMXES316P, with common replacements SM-ES3G-16-P and SM-X-ES3-24-P.