Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 8 of 11
Feature Description
Additional Troubleshooting
Features
Ɣ
Cisco Express setup simplifies initial configuration with a web browser, eliminating the need for more
complex terminal emulation programs and CLI knowledge.
Ɣ
AutoInstall uses DHCP-based autoconfiguration and image upgrade. This feature automatically
downloads the configuration file and Cisco IOS Software image, and allocates an IP address and
hostname for the switch. You can use AutoInstall to implement a zero-touch deployment.
Ɣ
Time Domain Reflectometry (TDR) is used to diagnose and resolve cabling problems on copper Ethernet
ports.
Ɣ
Automatic medium-dependent interface crossover (Auto-MDIX) automatically adjusts transmit and receive
pairs if an incorrect cable type (crossover or straight-through) is installed on a copper port.
Ɣ
Unidirectional Link Detection (UDLD) is a Layer 2 protocol that enables devices connected through fiber-
optic or twisted-pair Ethernet cables to monitor the physical configuration of the cables and detect when a
unidirectional link occurs.
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IPSLA is used to send IP or Ethernet-based probes to monitor and validate traffic flow levels; it is
available in the ES3 only.
Summary
As companies strive to lower the costs of running their networks and to increase the productivity of their end users
with network applications, more intelligent branch-office solutions are required. Cisco Enhanced EtherSwitch Service
Modules enable a higher level of security and offer enhanced PoE power levels, advanced features for IP
communications, easy expandability, and simplified management at the branch-office level. By minimizing OpEx
without sacrificing any advanced switching features, Cisco Enhanced EtherSwitch Service Modules can help you
maximize your return on investment for the network infrastructure and accelerate the deployment of productivity-
enhancing services to your enterprise branch offices or small to midsize business offices.
Product Specifications
Table 6 gives specifications of the Cisco Enhanced EtherSwitch Service Modules.
Table 6. Product Specifications
Model Fast Ethernet
Ports
Gigabit Ethernet
Ports
Small Form-Factor
Pluggable (SFP) Uplinks
Layer 2
Switching
Layer 2/3
Switching
PoE Service
Module Width
SM-D-ES3G-48-P 48 2 X X Double
SM-D-ES3-48-P 48 2 X X Double
SM-D-ES2-48 48 2 X Double
SM-ES3G-24-P 24 X X Single
SM-ES3-24-P 23 1 X X Single
SM-ES2-24-P 23 1 X X Single
SM-ES2-24 23 1 X Single
SM-ES3G-16-P 16 X X Single
SM-ES3-16-P 15 1 X X Single
SM-ES2-16-P 15 1 X X Single
Table 7 outlines the number of Cisco Enhanced EtherSwitch Service Modules supported per platform. Traffic
between modules is switched by the router MGF switch. Each module has a 1-Gbps-per-second link to the MGF.
You can mix and match ES2 and ES3 modules. The numbers in the following tables do not include onboard Ethernet
ports or Ethernet ports available on HWIC and EHWIC modules.
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