Huawei Quidway AR 18-3X Series Routers
Quidway AR 18-3X serien från Huawei är anpassad för det mindre kontoret/hemmakontoret. I serien ingår AR 18-30, AR 18-30E, AR 18-31, AR 18-31E, AR 18-32, AR 18-32E, AR 18-33, AR 18-33E, AR 18-34, AR 18-34E, AR 18-35, och AR 18-35E.
AR 18-3X serien är xDSL routers och ger ett nytt sätt att hantera stor bandbreddsåtgång för mestadels mindre och medelstora företag och vissa större verksamheter.
Uppströms finns stöd för ADSL/ADSL2+, G.SHDSL eller ISDN, som kan kopplas direkt till utrustningen på det centrala kontoret genom en eller två subscriber lines för att ge bredbandstjänster. ISDN-gränssnittet används primärt för backup.
Nedströms finns fyra 10/100BASE-T Ethernet portar. Stöd finns även för Stöd finns även för Layer 2 datautbyte och isolering av portar.
AR 18-33, AR 18-34, AR 18-33E, och AR 18-34E är baserade på SHDSL access över ATM.
AR 18-30E och AR 31E stöder ADSL2+ över POTS (Annex A standard), och AR 18-32E samt AR 35E stöder ADSL2+ över ISDN (Annex B standard). De ger en symmetrisk länk uppströms och nedströms.
AR 18-30E, AR 31E, AR 32E och AR 35E har switched Ethernet gränssnitt och stöder hantering över VLAN.
Overview
Quidway AR 18-3X Series Routers, developed by Huawei Technologies, are oriented to small office home office (SOHO) users. They include the AR 18-30, AR 18-30E, AR 18-31, AR 18-31E, AR 18-32, AR 18-32E, AR 18-33, AR 18-33E, AR 18-34, AR 18-34E, AR 18-35, and AR 18-35E models. The AR 18-3X Series Routers belong to xDSL routers and provide a new solution to high bandwidth- consuming small and mid-sized enterprises or some large branches and offices.
In the uplink direction, Quidway AR 18-3X Series Routers provide the ADSL/ADSL2+, G.SHDSL or ISDN interface, which can be directly connected to the equipment at the central office through one or two subscriber lines to provide broadband access services. The ISDN interface primarily functions as a backup interface.
In the downlink direction, Quidway AR 18-3X Series provides four 10/100BASE-T Ethernet interfaces. The interfaces provide Layer 2 data exchange and can implement port isolation.
The AR 18-33, AR 18-34, AR 18-33E, and AR 18-34E are based on SHDSL access of ATM. The AR 18-33 and AR 34 support single-pair wiring, and the AR 18-33E and AR 34E support dual-pair wiring. The AR 18-30E and AR 31E provide the ADSL2+ over POTS (Annex A standard) interface, and the AR 18-32E and AR 35E provide the ADSL2+ over ISDN (Annex B standard) interface. They provide symmetric uplink and downlink broadband leased line access over the twisted pair cables for those small and medium-sized enterprises and SOHO users, who is not capable of building their private networks or cannot afford high expenses of DDN communication. The AR 18-30E, AR 31E, AR 32E and AR 35E have the switched Ethernet interface and support VLAN management.
Network Security
Quidway AR 18-3X Series Router provides abundant network security features, such as firewall, packet filtering, network address translation (NAT), authentication, authorization and accounting (AAA), and callback. Hence, users can select different security policies to build enterprise networks.
Building a VPN
Intranet virtual private network (VPN) interconnects the geographically dispersed branches of a company via public networks, as an extension and replacement of traditional leased line networks and other enterprise networks. Access VPN provides secure tunnels for small-sized users like SOHO to access the resources of company headquarters via PSTN/ISDN. Extranet VPN extends the enterprise networks to the business partners and clients, and enables different companies to communicate securely and privately over the public networks. Quidway AR 18-3X Series Router is mainly used at the access end of VPNs.
Dial Control Center
Quidway AR 18-3X Series provides perfect dial-in solutions and support two dial-in modes, namely legacy DCC and dialer profiles. In addition, it also supports the link layer protocols like point-to-point protocol (PPP), the network layer protocols like internet protocol (IP) and internet packet exchange (IPX); they have the capability of running multiple dynamic routing protocols on the dial-in interfaces; they thereby can satisfy various network topology requirements. The dialer profiles own more functions, and can enable multiple dial-in users to share a physical interface via the dialer pool and make different calls.
Reliability
The backup center technology can greatly enhance the network reliability. The features of synchronous interface, asynchronous interface, CT1/PRI interface and ISDN BRI interface implement line backup and provide high reliability.
Command Line Interface
The command line interface (CLI) of Quidway AR 18-3X Series Routers can be configured in common ways. No special training is needed for users.
2B+D Data Transmission
The AR 18-31, AR 18-34, AR 18-34E, AR 18-35, AR 18-32E and 18-35E have the built-in terminal adapter (TA) and provide the ISDN BRI S/T interface or U interface for 2B+D data transmission.
ADSL/ADSL2+ and G.HSDSL Access
The Quidway AR 18-3X Series supports ATM PVC, point-to-point protocol over AAL5 (PPPoA), IP over AAL5 (IPoA), and point-to-point protocol over Ethernet over AAL5 (PPPoEoA). The routers can cooperate with different DSLAM devices for SOHO users broadband network access. Branch offices are strongly recommended to adopt the ADSL+NAT+IPSec/IKE solution. With the IKE aggressive mode and the NAT traversal feature, the branch offices can replace the traditional leased line access solution with the securer ADSL broadband access solution.
Chassis
Electromagnetic shielded plastic chassis, which the AR-3X Series adopts, has not only a smooth external appearance and small size, but also can effectively shield electromagnetic interference from various sources to make the system work more stably and reliably.