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6 CHAPTER 1: 3COM ROUTER INTRODUCTION
Figure 1 Schematic diagram of the 3Com Router architecture
Features of the 3Com
Router Version 1.10
The following table lists the basic features of the 3Com Router 1.x:
Table 3 List of the 3Com Router 1.x features
System
service
TCP/UDP
IP forwarding engine
Fast
forwarding
IP security
and firewall
QoS
assurance
Route policy
management
RIP OSPF BGP
FTP
HTTP
TELNET
VPN
PPP/SLIP
Configuration
management
Voice Service
......
Command
line
SNMP
Web
management
HDLC EthernetX.25Frame Relay
Attribute Description
Interconnection protocol LAN ■ Supports Ethernet_II and Ethernet_SNAP frame structure
■ Follows IEEE 802.2 and IEEE 802.3 regulations
WAN ■ Supports Frame Relay and Frame Relay switching
■ Supports FRoIP, FRoISDN
■ Supports Multi-link Frame Relay (MFR), FR compression
■ Supports FR Traffic Shaping (FRTS) to ensure even traffic over
the VCs on FR
■ Supports X.25 and X.25 switching, X.25 Over TCP (XOT)
■ Supports HDLC, SDLC and LAPB regulations
■ Supports SLIP, PPP and MP
■ Supports PPPoE Client
■ Supports ITU-T Q.921 and Q.931 regulations, ISDN (ITU-T
Q.921, Q.931) and ISDN semi-permanent connection
■ Supports bridging technology
Dial-up network ■ Manages Modem through the AT command and configures
script to dial up.
■ Supports dial demand Routing (dialer profiles and legacy
BDR)
■ Supports Callback (PPP callback and ISDN Calling Line
Identification callback)
■ Provides ISDN leased line, automatic dialing, and cyclic dial
queue backup
■ Provides Dial interface backup
VPN ■ Supports L2TP, implements VPDN (Supports DNIS user,
domain name user, and full name user)
■ Supports L3 channel protocol GRE