Cisco AS5400XM Uživatelský manuál stáhnout pdf (Strana 10)

The Cisco AS5400XM Universal Gateway also supports the most complete set of access protocols of any access server in the industry,

including PPP, IPX Control Protocol (IPXCP), AppleTalk Control Protocol (ATCP), AppleTalk Remote Access (ARA), NetBIOS Frame

Control Protocol (NBFCP), NetBIOS over TCP/IP, NetBEUI over PPP, and protocol translation.

V.92 and V.44 Support

V.92 and V.44 are the latest modem standards adopted by the industry. The standards specify a set of features that allow modems to mimic

many of the benefits of broadband:

●

V.44 increases throughput by more than 100 percent when surfing the Internet.

●

V.92 Modem on Hold suspends an Internet session to place or receive a phone call.

●

V.92 Quick Connect provides a faster connect time to the Internet.

Service providers can offer revenue-generating services and increase subscriber retention with V.92 and V.44 standards. Cisco RADIUS

support for Modem on Hold allows premium subscribers to suspend their Internet sessions for longer periods of time to place or receive

phone calls. Quick Connect saves the line conditions of the last number dialed, encouraging subscribers to dial into the same ISP to

reduce connection time. Combined with greater compression and connection speeds, V.92 and V.44 allow service providers to offer

their subscribers a “broadband-lite” experience, enabling Internet users to experience the qualities usually associated with broadband

for the price of dialup or modem access.

Security Management

Cisco IOS Software security features allow authorized users dialup access while preventing access to intruders. These features

include: multilevel password protection; user authentication such as Password Authentication Protocol (PAP) and Challenge Handshake

Authentication Protocol (CHAP); access control lists (ACLs); IP address spoofing prevention and logging; support of the industry-standard

AAA protocols; RADIUS; and TACACS+.

Internet Connectivity

Enterprises and service providers need to extend network access to a broad range of remote users, including employees, customers, and

partners. Successful remote access means being able to connect these users from practically any location, almost transparently. The Cisco

AS5400XM Universal Gateway, combined with Cisco IOS Software, meets these needs by extending the core infrastructure through

secure, reliable dial-in connections.

Data over Voice Bearer Service (DoVBS) is used in areas where ISDN data calls are charged at a higher rate (or tariff) than ISDN voice

calls. The ISDN customer-premises-equipment (CPE) device (terminal adapter or router) must support DoVBS operation—most popular

ISDN devices available today support DoVBS. The ISDN CPE device is programmed to signal all ISDN data calls as voice calls to ensure

that these calls are billed at the lower voice rate. Cisco Resource Pool Management (RPM) on the Cisco AS5400XM Universal Gateway

is used to configure a customer profile for DoVBS calls based on DNIS. This profile configures the Cisco AS5400XM to treat all calls

received on that number as ISDN data calls, even if they are signaled as voice calls by the PSTN network.

Wholesale Dial

Many ISPs and content providers (or “portals”) must provide dialup Internet access as part of their service packages, and enterprise

companies want to offer “private-label” Internet access to promote their brands. However, they do not have the experience, personnel,

time, or money to build out a dialup access infrastructure, or they cannot build it fast enough—particularly when expanding into new

regions. Service providers can now take advantage of this opportunity through the Cisco Wholesale Dial solution.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 21 22

Žádné komentáře

Cisco AS5400XM Uživatelský manuál Strana 10