Solved

3925 Etherswitch Service Module Configuration

Posted on 2010-11-08
1
1,643 Views
Last Modified: 2012-05-10
We have a Cisco 3925 router which had a 4 port DS1 HWIC to run frame relay service through. So we have been running the 3 Gigabit ports to run the rest of the connectivity to the network. However, now the folks are wanting to introduce some web services into the mix which means additional Ethernet ports will have to be put in place, to accomodate a DMZ but we are already using all 3 Ethernet port that come with the 3925.

So we have added a brand new Cisco SM-ES3G-24P Service Module into the router. Although you can figure it through the regular 3925 IOS CLI.

Am correct in assuming that this module acting 100% independantly of the rest of the router as it looks?

There is only one document I have found in configuring service modules (Cisco KDoc ID 82288), and that is the way it looks to me.

Seems kind of a waste to not have some method of transferring the data around internally, and having to string cables between the main router and the Etherswitch module. Just wanted to be sure I am not missing something here.
0
Comment
Question by:fluce
1 Comment
 
LVL 14

Accepted Solution

by:
Otto_N earned 250 total points
ID: 34092387
Yes.  I quote from the Cisco Enhanced EtherSwitch Service Modules Configuration Guide: "The Cisco enhanced EtherSwitch service modules provide Cisco 2900 series routers and Cisco 3900 series routers the ability to use Cisco enhanced EtherSwitch service modules as independent Layer 2 and Layer 3 switches when running Cisco IOS."

I have not downloaded the document, and dont have the Doc ID, so it is probably the same document you're refering to.

The only difference between a stand-alone switch and the Service Module is that the Gigabit Ethernet connection between the router and the services module via the back-plane connectors run, and that they share some system resources.
0

Featured Post

Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Data center, now-a-days, is referred as the home of all the advanced technologies. In-fact, most of the businesses are now establishing their entire organizational structure around the IT capabilities.
Shadow IT is coming out of the shadows as more businesses are choosing cloud-based applications. It is now a multi-cloud world for most organizations. Simultaneously, most businesses have yet to consolidate with one cloud provider or define an offic…
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

805 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question