Cisco Cisco SM-X Layer 2 3 EtherSwitch Service Module

Cisco Systems, Inc.
www.cisco.com

The Cisco SM-X Layer 2/3 EtherSwitch Service Module (Cisco SM-X Layer 2/3 ESM) integrates the 
Layer 2 and Layer 3 switching features and provides the Cisco 4451-X ISR the ability to use the Cisco 
SM-X Layer 2/3 ESM as an independent Layer 3 switch when running the Cisco IOS software.

The Cisco SM-X Layer 2/3 ESMs also provide a 1-Gbps connection to the multigigabit fabric (MGF) 
for intermodule communication without burdening your router’s CPU.

The Cisco SM-X Layer 2/3 ESMs are capable of providing up to 30 watts of power per port with the 
robust Power over Ethernet Plus (PoE+) feature, along with IEEE 802.3AE Media Access Control 
Security (MACSec) port-based, hop-to-hop, encryption, and Cisco TrustSec (CTS) which work on 
multiple router families.

The following is the feature history for the Cisco SM-X Layer 2/3 ESM:

Cisco IOS XE Release 3.11S (router software)

Cisco IOS XE Release 3.10.3S (router software)

Cisco IOS Release 15.0(2)EJ1 (switch software)

Support for SM-X-ES3D-48-P was added.

Cisco IOS XE Release 3.10.3S (router software)

Cisco IOS XE Release 3.11.2S (router software)

Cisco IOS XE Release 3.12.1S (router software)

Cisco IOS XE Release 3.13S (router software)

Cisco IOS Release 15.2(2)E (switch software)

Cisco IOS Release 15.2(3)E (switch software)

Support for 15.2(2)E switch image was released.

Support for 15.2(3)E switch image was released.

Cisco IOS XE Release 3.15S (router software)

SVI interface supported on router side was added.