Table of Contents
Overview of the Cisco 673
This chapter provides an overview of the Cisco 673 symmetrical digital subscriber line (SDSL) router and describes the general applications available with the Cisco 673.
Note This chapter documents general product features available in the Cisco 673 product line. Please refer to the Cisco 673 release notes document for a current list of product features available in the Cisco 673 you purchased.
The Cisco 673 is an SDSL router for home connectivity to an SDSL service provider network over an SDSL/Asynchronous Transfer Mode (ATM) physical layer. The Cisco 673 can transmit and receive data at rates up to 1.168 Mbps. A 10/100BaseT interface is provided for connection to an Ethernet LAN or Ethernet-equipped PC.
Note The Cisco 673 can achieve rates of 1.168 Mbps up and downstream. However, the maximum operative rate is determined by the CO SDSL equipment.
Figure 1-1 illustrates the Cisco 673 SDSL Router.
Figure 1-1: Front View of the Cisco 673 SDSL Router

The following features are common to all Cisco 673 products:
- Symmetrical DSL interface, with 2B1Q line code and data transmit/receive rates up to 1.168 Mbps
- Auto-negotiating 10BaseT or 100BaseTX Ethernet interface, compliant with IEEE 802.3 and 802.3u Fast Ethernet
- ATM cell delineation adherent to ITU-T I.432
- Supports ATM Forum-compliant permanent virtual circuits (PVCs)
- Status LEDs indicating Ethernet and WAN activity
- Fully compatible with the Cisco 6100 Digital Subscriber Line Access Multiplexer (DSLAM) multiplexer
Standards Compliance
- IETF RFC 1661 Point-to-Point Protocol (PPP)
- IETF RFC 1483 Mulitprotocol encapsulation over ATM Adaptation Layer 5
- ATM Forum UNI Version 3.1 PVC
- IEEE 802.3 and 802.3u 10BaseT and 100BaseTX physical layer specification
- IEEE 802.1d transparent learning bridging
- RFC 1638 - PPP Bridging Control Protocol (BCP)
Routing Support
- IP (RFC 791)
- User Datagram Protocol (UDP) (RFC 792)
- Internet Control Message Protocol (ICMP) (RFC 791)
- Address Resolution Protocol (ARP) (RFC 826)
- Routing Information Protocol (RIP) version 1 and RIP version 2 updating of routing tables
- Static routing
- RADIUS security and accounting (RFC 2058, RFC 2059)
- Dynamic Host Configuration Protocol (DHCP) client and server
- Network Address Translation (NAT)
Bridging Support
- Transparent learning bridge
- RFC 1638 - PPP Bridging Control Protocol (BCP)
- RFC 1483 Mulitprotocol encapsulation over ATM Adaptation Layer 5
- Management channel support for remote configuration/management
Management
- HTML browser interface
- Command-line interface
- Telnet support
- TFTP
- Simple Network Management Protocol (SNMP) MIB support
- Multilevel password protection
Table 1-1describes the function of the connectors and switches on the Cisco 673 back panel. See Figure 1-2 for the location of the connectors.
Table 1-1: Function of Connectors
| Connector Label
| Connector Description
|
PWR
| Power connector
|
ENET
| RJ-45 Ethernet connector --- Connects to the Ethernet port on your PC, laptop or LAN hub.
|
MGMT
| RJ-45 management connector --- Connects to the serial port on your PC or laptop.
|
WALL
| RJ-11 SDSL connector --- Connects to the wall jack.
|
Figure 1-2: Rear View of Cisco 673

The Cisco 673 comes with 4 MB of Extended Data Out (EDO) DRAM with 60 ns access time.
You can operate the Cisco 673 SDSL router in an ambient temperature of 32º to 104ºF (0º to 40ºC) and you can store it in an ambient temperature of -40º to 185ºF (-40ºto 85ºC).
The general applications supported by the Cisco 673 are:
- DHCP client and server
- NAT
- Ping
- RADIUS
- RIP
- SYSLOG client
- Telnet server
- TFTP server
- Traceroute
- Web
For more information on each of these applications, see "Configuration Procedures" section.







Posted: Fri Dec 17 14:29:15 PST 1999
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