Cisco 6400 Manual de usuario descargar pdf (Pagina 2)

In order to meet the demands of these diverse roles, the Cisco

6400 uses its fully-featured Layer 2 and Layer 3 Cisco IOS base.

The Cisco 6400 can operate as a pure ATM switch, forwarding

cells transparently or terminating local ATM virtual circuits, as a

pure router, performing IP services or Point-to-Point Protocol

(PPP) termination/PPP tunneling via Layer 2 Tunneling Protocol

(L2TP), or a combination of both.

Product Overview

The Cisco 6400 consists of a fault-tolerant ATM switching core

and multiple fault tolerant routing engines. The ATM switch,

based on Catalyst

8500 + Per-Flow Queuing (PFQ) technology,

provides the necessary ATM switching and trafﬁc management

capabilities, while the router modules enable the service provider

to offer scalable Layer 3 services, described below. ATM

interfaces connect the Cisco 6400 to dial access servers,

DSLAMs, and Cisco IP DSL Switches, and ATM and packet

interfaces connect to the network core. The Cisco 6400 is

designed for use in high-availability environments such as

operating companies’ central ofﬁces (directly or via co-location),

ISP ofﬁces, and corporate premises. As such, it includes switch,

router, and line card redundancy, as well as 12-inch packaging

(key for central ofﬁce deployment).

The Cisco 6400 provides the following beneﬁts:

• Session scalability—The Cisco 6400 represents a quantum leap

in session scalability, capable of supporting up to 96,000

subscriber sessions through one fully conﬁgured system. This

scalable and ﬂexible approach enables service providers to

deliver secure PPP-based services to a much broader customer

base by leveraging any end user's hardware and system

conﬁguration.

• Modular design—The Cisco 6400 is a modular platform, with

capacity starting at 2000 subscribers in its entry level

conﬁguration. The Cisco 6400 is capable of expanding to

96,000 subscribers quickly and cost-effectively as business

grows, all the while delivering industry leading performance

with the lowest cost per subscriber session in the industry.

• Routing and VPN scalability—Using the Cisco 6400, service

providers can simultaneously route end-user trafﬁc over secure,

independent pathways exceeding 1000 different domains or end

destinations, with an aggregate throughput of over 2.4 gigabit

per second forwarding capacity for handling even the most

bandwidth-intensive broadband trafﬁc. Each domain represents

a VPN that may be assigned its own secure private path and own

QoS level, enabling service providers to generate revenue by

assigning QoS levels for each domain connection or service and

charging fees accordingly.

• Flexible service architecture—The Cisco 6400 forms the basis

of a foundation architecture which supports the widest variety

of services in the industry. The Cisco 6400 supports a variety

of client architectures, including bridging, routing, PPP over

ATM (PPPoA), PPP over Ethernet (PPPoE), and L2TP.

Supported network architectures include IP, IP over ATM,

Multi-protocol label switching (MPLS) VPNs andIPSec. All of

these services are supported by the full suite of Cisco IOS

routing protocols.

• Reduction of provisioning costs—By terminating PPP sessions

and mapping them to as many as 1000 routing domains without

concern for overlapping private IP address spaces, the Cisco

6400 does away with the high provisioning costs and

complexities of a point-to-point network architecture.

• Dynamic service selection—The Service Selection Gateway

(SSG) allows subscribers to dynamically select on-demand

services. As the gateway to New World services, the SSG

enables services such as videoconferencing, streaming video,

personalized Internet, business-grade Internet, shopping, and

gaming to create new revenue streams and help attract and

retain subscribers. The SSG allows each family member to

access multiple services simultaneously for the ultimate in

service utility, ﬂexibility, and advertisement.

• Captive Web-based service selection portals—The Service

Selection Dashboard (SSD) software works in conjunction with

SSG, allowing service providers to create customized network

portals for individual subscribers. Because the software is

Web-based, end users need no additional software other than

their own Web browser, and service providers incur no costs for

software royalties or support. Through the Web-based portals,

users can access their own personalized proﬁle, on any

computer and operating system, and select any number of

simultaneous services by simply pointing and clicking. Access

to different networks, such as the Internet, corporate intranets,

gaming or other entertainment-based services is provided via an

authenticated log-on that is available to allusersconnectedfrom

homes or small business LANs.

• Flexible accounting—The SSG lets service providers track and

bill individual user session on a per-service basis, or even on a

per-service, per- family-member basis, further enabling the

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