Datasheet

Cisco Systems, Inc.

Page 4 of 10

Table 1 Features and Beneﬁts of Cisco 1700 with G.shdsl WIC

These features are supported on a per-virtualcircuit basis (mixing of voice and data trafﬁc) and supported on a virtual-circuit

bundleinprocess/fast/Cisco Express Forwarding(CEF)switching modes fordifferentiatedservices (DiffServ) andCAR.MLP

using LFI over ATM is supported on a single virtual circuit on the ATM interface, and in process and fast switching modes.

Managed Services/Applications

1. Managed Internet access

2. Managed VPN service

3. Managed VoIP service

4. Back-to-back deployment in a campus environment

Scenario 1—Managed Internet Access

Figure 2

Managed Internet Access with WAN Backup

The modularity and ﬂexibility of the Cisco 1700 Series with G.shdsl WIC is highlighted in Figure 2. Service providers can

provide the end customer with a managed service using the G.shdsl as the primary WAN access using ISDN as a secondary

line for backup. The customer also has the ﬂexibility to select a second G.shdsl line using a different Internet service

provider (ISP).

Feature Benefit

Low-Latency Queuing (LLQ), also called

Priority Queuing/Class-Based Weighted

Fair Queuing (PQ/CBWFQ)

Achieves low latency by classifying and prioritizing voice trafﬁc over data

Differentiated Services Classiﬁes and marks high-priority trafﬁc so that it receives the assigned QoS

across the network

Multilink PPP (MLP) with Link

Fragmentation and Interleaving (LFI)

Fragments larger data packets into smaller segments and interleaves voice packets

to overcome serialization delays over a multilink interface

Committed Access Rate (CAR) Provides bandwidth commitments and speciﬁes policies for handling trafﬁc that

exceeds this bandwidth commitment

Weighted Random Early Detection (WRED) Speciﬁes policies for congestion management

Branch

Office

Dual Links for Back Up

or Load Balancing

Cisco 1700

with G.shdsl

ISP B

ISP A

Internet