3Com Router 3000 Ethernet Family
Configuration Guide
1.1 Introduction
Versatile Routing Platform (v2.4x) is the versatile operating system platform of 3Com
Technologies for data communications products. Focusing on IP services, it constructs
a componential architecture, and provides abundant functionality as well as the
application-based tailorability and scalability.
Taking the TCP/IP stack as the core, v2.4x integrates the data communications
technologies in routing, QoS, VPN, security, and VoIP into the operating system, and
offers remarkable data forwarding capability.
v2.4x is a network operating system of which 3Com Technologies owns the exclusive
intellectual property rights (IPR). It provides a uniform set of interfaces (network, user
and management) for various hardware platforms and therefore offers a variety of
flexible application solutions with hundreds of features. Moreover, as a platform of
sustainable development, it can protect network investments.
1.2 Architecture of v2.4x
Using the TCP/IP model as a reference, the architecture of v2.4x implements protocols
at layers encompassing data link, network, and application, as shown in the following
figure:
RIP OSPF
RIP OSPF
RIP OSPF
RIP OSPF
System
System
System
System
service
service
service
service
PPP/ P PPoE
PPP/ P PPoE
PPP/ P PPoE
PPP/ P PPoE
Figure 1-1 v2.4x architecture
Chapter 1 v2.4x Overview
HTTP
HTTP
HTTP
HTTP
FTP
FTP
FTP
FTP
IS-IS
IS-IS
IS-IS
IS-IS
BGP
BGP
BGP
BGP
Routing policy
Routing policy
Route -policy
Route -policy
management
management
management
management
IP forwarding engine
IP forwarding engine
IP forwarding engine
IP forwarding engine
(Unicastforwarding, multicast forwarding)
(Unicastforwarding, multicast forwarding)
(Unicast, multicast)
(Unicast, multicast)
Fast forwarding IPSec , firewall
Fast forwarding IPSec , firewall
Fast forwarding IPSec , firewall
Fast forwarding IPSec , firewall
Frame Relay
Frame Relay
Frame Relay
Frame Relay
3Com Corporation
......
......
......
......
TELNET
TELNET
TELNET
TELNET
PIM DVMRP MBGP
PIM DVMRP BGMP
PIM DVMRP BGMP
PIM DVMRP MBGP
TCP/UDP
TCP/UDP
TCP/UDP
TCP/UDP
QoS
QoS
QoS
QoS
X25
X25
X25
X25
HDLC
HDLC
HDLC
HDLC
1-1
Chapter 1 v2.4x Overview
VPN
VPN
VPN
VPN
Command line
Command line
ÃüÁî Ð Ð
ÃüÁî Ð Ð
SNMP
SNMP
SNMP
SNMP
Web-based
Web-based
Web
Web
Configuration
Configuration
¹ÜÀí
¹ÜÀí
ATM
ATM
ATM
ATM
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