19 scenarios for deploying clear channel t3 and e3, Section 30.19, "scenarios for deploying, Clear channel t3 and e3 – Riverstone Networks WICT1-12 User Manual

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Riverstone Networks RS Switch Router User Guide Release 8.0 30-83

WAN Configuration

Scenarios for Deploying Clear Channel T3 and E3

30.19 SCENARIOS FOR DEPLOYING CLEAR CHANNEL

T3 AND E3

This section describes some scenarios for deploying Clear Channel T3.There are two scenarios, which cover the
deployment for:

•

Routed inter-office connections through an Internet Service Provider (ISP) (see

Section 30.19.1

)

•

Routed Metropolitan Backbone (see

Section 30.19.2

)

30.19.1

Scenario 1: Routed Inter-Office Connections through and ISP

In this scenario, a company’s sites share data that is held at the Internet Service Provider (ISP). The company’s head
office contains an RS 8000, and the remote sites each have an RS 3000. All remote sites have four Channelized T1
lines grouped into a Multilink PPP bundle to connect to the RS 8000 at head office. Where there is significant traffic
between two remote sites, perhaps because they are in the same geographical region, they are also connected by a
Channelized T1 line. All remote sites are a maximum of two hops away from any other remote site, and RIP is used
as the routing protocol.

The ISP provides a Channelized T3 connection on their RS 8000, a LAN that connects to the servers containing the
shared data required by the company, and a Clear Channel T3 connection to the Internet.

Figure 30-13

shows the network layout for this scenario. The tables following the figure show the commands used to

configure the interfaces for the routers at the ISP, head office (hqsite), and the remote sites, rsite2 and rsite3. The
interfaces on the routers at the remaining sites are configured in a similar way to the corresponding interfaces for rsite2,
using the appropriate IP address for each interface.

Hardware Requirements

Router

Hardware Requirements

RS 8000

1 Channelized T3 module.
1 Multi-Rate WAN module with 1 Clear Channel T3 WIC

RS 8000 (hqsite)

1 Channelized T3 module.
6 Multi-Rate WAN modules with 12 Channelized T1 WICs.

RS 3000 (rsite2)