Learning by Doing: CISCO Certified Network ... - SCN Research

Fully-Meshed Frame Relay with 3 Routers and Sub-interfaces
Objective:
To be able to configure a “fully-meshed” frame relay network using 3 routers and subinterfaces.
Background:
After learning how to configure “hub and spoke” networks it is now time to configure a
fully-meshed frame relay network. Unlike the hub and spoke network which had all
serial interfaces on one subnet we will have to use a different subnet for every connection
in our meshed network. This will require two or more ip addresses on every serial
interface used. Since we cannot use more than one ip address on an interface we will be
using sub-interfaces with different ip addresses. To geek it up the sub-interfaces are
“logical” sub-interfaces on our “physical” main interface. You will also begin to see why
we identified our DLCI’s in the manner we have been using.
Materials Needed:
(3) routers
(3) DTE cables
(1) Adtran atlas 550
(1) PC/workstation
(1) console cable
Lab Diagram:
Shadow
1/2
dlci 18
1/1 2/1
dlci 16 dlci 17
Diekman
Knight
Router Diekman Shadow Knight
Serial int. in text in text in text
Loop 0 1.1.1.1/8 2.2.2.2/8 3.3.3.3/8
Adtran 1/1 1/2 2/1
Dlci 16 18 17
399