CBT Nuggets, CCIE Routing and Switching, Practice Lab 1
Pre-Lab Instructions
• Read the entire lab before you start
• You may not use any static/default routes unless otherwise specified
• You may only use the Frame Relay DLCIs provided in the appropriate figures
• Build the lab topology per Figure 1.1 and Figure 1.2
• All routers have been pre-configured with loopback interfaces that follow the numbering
scheme 10.x.x.x, where ‘x’ is the router number. For example, R1 has the loopback
interface 10.1.1.1/24. R2 has the loopback 10.2.2.2/24.
Section 1: Bridging and Switching (11 Points)
Section 1.1: Frame Relay Configuration (4 Points)
• Configure the Frame Relay portion of the network as shown in Figure 1.2. You may only
use the PVCs shown in the diagram.
• R2 and R3 should be connected on their own network.
• R2, R4, and R5 should be connected on their own network.
• You can use subinterfaces only on R2 and R5. Do not configure subinterfaces on any
other router.
• You must be able to ping across the Frame Relay network.
Section 1.2: 3550 Switch Configuration (5 Points)
• The two 3550 switches are connected using a crossover cable on port fa0/23 and fa0/24.
Configure these ports as a single, high-bandwidth connection.
• Configure the connections between the 3550 switches as an 802.1Q trunk. This
connection should be redundant. If the fa0/23 link fails, fa0/24 should take over. If fa0/24
fails, fa0/23 should take over.
• All ports are pre-cabled as shown in table 1-1. All ports shown may not be used in the
lab.
Interface SwitchA SwitchB
R1 e0 (2514) fa0/1 -
R1 e1 (2514) fa0/1
R2 e0/0 (2610) fa0/2 -
R3 e0/0 (2610) fa0/3 -
R4 e0 (2520) fa0/4 -
R5 e0 (2620) - fa0/5
R6 e0 (2503) - fa0/6
R7 e1/0 (3640) fa0/7 -
R7 fa2/0 (3640) - fa0/7
BB1 e0 (2503) - fa0/20
