3com Network Router 6000 Owner's Manual download pdf (Page 12)

12 Chapter 1: Introducing the Router 6000 Family

6000 can be installed with an ATM cards to connect its network to an

ATM network.

MPLS Multiprotocol label switching (MPLS), a combination of IP and

ATM technologies, can provides faster forwarding speed and get support

from IP protocols to accommodate to emerging applications.

Data security and reliability The following are the data security and

reliability features that the Route 6000 supports:

■ NAT. Besides some basic functions, NAT can limit concurrent

connections to a single user, and thus alleviate negative impacts

caused by malicious resource occupation without affecting the normal

network applications. In addition, NAT of the Router 6000 also

provides the application layer gateway (ALG) function specific to FTP

and ICMP.

■ Authentication protocols such as PAP, CHAP, data RADIUS, and VoIP

RADIUS.

■ Packet filter and firewall, which fend off external attacks.

■ VPN (including GRE, L2TP, and MPLS) and the technologies of IPSec

and IKE. They can ensure security of private networks in an Internet

environment.

■ Backup center and virtual router redundancy protocol (VRRP). By

providing a backup scheme in case of communication line or device

failures, they enhance robustness and reliability of networks. Backup

center also supports backup load sharing.

■ Hot swappable fans, interface cards, and PSUs to ensure high

reliability.

Online software upgrading The onboard Flash memory allows you to

upgrade the software online, add new features, and extend new

functions.

Abundant fault isolation methods The Router 6000 monitor the

states of system configurations, system service channels, and system

resources is available, and provides fault indication via console and

network management host. In addition, logging is provided for recording

and outputting any abnormal information.

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3com Network Router 6000 Owner's Manual Page 12