Cisco SM-ES3-16-P 15 10/100 Ethernet ports, 1 10/100/1000 Ethernet port, single-wide Layer 2 and Layer 3 enhanced EtherSwitch service module, with PoE support
The Cisco Enhanced EtherSwitch Service Module helps ensure maximum availability, high performance, ease of upgrade, and expandability. The modules have their own processors, switching engines, and flash memory that run independently of host router resources, helping ensure maximum concurrent switching and routing performance as well as providing security, and increased ease of management.
16 x 10/100/1000
for Cisco 2911
3945; Catalyst 2960-24