Cisco AS5400HPX Manual de usuario descargar pdf (Pagina 3)

SS7/C7 Integration

SPs around the world are deploying Cisco access servers with

SS7 or Common Channel (C7) interfaces. With SS7, carriers

realize immediate benefits of improved scaling, reduced

network costs, and faster time to market. The Cisco SS7

solution, implemented through the Cisco SC2200 signaling

controller, also guarantees investment protection in existing

Cisco access servers while providing a smooth migration toIP

packet telephony.

The Cisco SC2200 signaling controller provides

signalingconnectivity to theSS7networkandprovidesallthe

functions for signaling and SS7 network management. The

access servers provide digital interofﬁce trunk interfaces for

completion of the calls. Control trafﬁc is logically separated

from management and customer data, to provide greater

security and reliability. Resource management, call control,

and system health monitoring complement SS7 to facilitate

network scalability. The SC2200 can be at a centralized

location, or distributed.

In order to connect to the Public Switched Telephone

Network (PSTN) as a network element, the Cisco solution

supports two- and four-wire continuity check (COT), and

milliwatt test calls at the access server. Time Division

Multiplexing (TDM) hairpinning (Drop & Insert) plus

network-side ISDN functionality provide a means of

grooming incoming trafﬁc and passing selected calls to

external devices, such as private branch exchanges (PBXs),

test sets, or voice-over-IP (VoIP) gateways.

Full Cisco IOS Support

The Cisco AS5400 has two software image options. The

ﬁrst is the IP Plus feature set, which is the full Cisco IOS

enterprise feature set with all non-IP functions removed (for

example, Internetwork Packet Exchange [IPX], AppleTalk,

SystemsNetworkArchitecture[SNA],andsoon). Thisimage

provides a complete palette of software functions to enable

rapid deployment of feature-rich IP services using the Cisco

AS5400, includingkey features such as full RADIUS support

(standard Internet engineering Task Force [IETF] plus

vendor-proprietary extensionsnot provided byCisco), L2TP,

Quality ofService (QoS), extended ACLs, AOL, and Prodigy

support.

The second Cisco AS5400 image is the Enterprise Plus

feature set, which includes support for all protocols (IP, IPX,

AppleTalk, and so on) as well as the palette of software

functions found in the IP Plus image.

VoIP Support

Voice will be supported in a future release of software.

Multivendor Back-Office Integration

TheCiscoAS5400supportsRADIUSandTACACS+ protocols

for back-office integration, control, andsecurity. Inaddition to

supporting the IETF-defined RADIUS attributes, Cisco IOS

software supports many vendor-proprietary RADIUS

attributes for both preauthentication and user authentication.

This means that the Cisco AS5400 can be integrated into any

multivendor remote-access network with no changes to the

back-office systems.

Worldwide Certification

The CiscoAS5400 is homologated worldwide with all major

T1 and E1 switch types. For ISDN Primary Rate Interface

(PRI), the switch types and feature sets supported are listed

in Table 1.

Table 1 Supported Switch Types and Features

SupportedSwitch

Hardware

Supported

Software

Supported Feature

of Interest

5ESS (Lucent) PRIcustomandNI-2,

Net5, NTT

NFAS with NI-2

4ESS (Lucent) PRI custom NFAS

DMS 100 (Nortel) PRI custom NFAS

DMS 250 (Nortel) PRI custom NFAS

GTD5 (GTE) PRI custom and NI-2 NFAS with NI-2

AXE (Ericsson) PRI custom and NI-2 NFAS with NI-2

EWSD (Siemens) PRI custom and NI-2 NFAS with NI-2

1 2 3 4 5 6 7 8 9 10

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