Specifications
Table Of Contents
- Notices
- Contents
- Preface
- Features Overview
- Hardware Installation
- Software Installation and Setup
- Powering On and Booting the Software
- Starting the Command Line Interface
- Setting Basic System Information
- Setting Up SNMP Community Strings
- Setting Up Passwords
- Setting the DNS Domain Name and Address
- Setting SYSLOG Parameters
- Loading System Image Software
- Loading Boot PROM Software
- Upgrading the VFS
- Activating Configuration Changes and Saving the Configuration File
- Installing and Starting Cabletron CoreWatch
- Troubleshooting
- Technical Support
- Index
SmartSwitch Router 2100 Getting Started Guide 5
Chapter 1: Features Overview
This guide and other SSR 2100 documentation refers to the SSR 2100’s Layer-2, Layer-3,
and Layer-4 switching and routing. These layers are based on the International Standards
Organization (ISO) 7-layer reference model. Here is an example of that model. The
SSR 2100 operates within the layers that are not shaded. Notice that Layer-2 is divided
into an LLC layer and a MAC layer. The SSR 2100 operates at the MAC layer but not the
LLC layer.
TCP/UDP Services
The following table lists some well known TCP/UDP services provided by the SSR 2100.
Features
This section describes the following SSR 2100 features:
• Address-based and flow-based bridging
• Port-based VLANs and protocol-based VLANs
• IP and IPX routing
Layer 7 Application
Layer 6 Presentation
Layer 5 Session
Layer 4 TCP/UDP - application
Layer 3 IP/IPX - routing
Layer 2 LLC
Layer 2 MAC -bridging
Layer 1 Physical Interfaces
Table 2. TCP/UDP services
TCP Port UDP Port Description
23 Telnet
161 SNMP
67 BOOTP/DHCP Relay Agent
520 Routed