June 2007
Intermediate to advanced
600 pages
18h 19m
English
Content preview from Network Warrior
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Configuring Frame Relay
Once you understand how frame relay works, the mechanics of configuration are not very difficult. There are some interesting concepts, such as subinterfaces, that may be new to you; we'll cover those in detail here.
Basic Frame Relay with Two Nodes
Figure 22-10 shows a simple two-node frame-relay network. Router A is connected to Router B using frame relay over a T1. The port speed is 1.536 Mbps, the CIR is 512 Kbps, and the burst rate is 2X (1,024 Kbps).
Figure 22-10. Two-node frame-relay network
The first step in configuring frame relay is to configure frame-relay encapsulation.
There are two types of frame-relay encapsulation: cisco and ietf. The default type is
cisco, which is configured with the encapsulation frame-relay command:
interface Serial0/0 encapsulation frame-relay
The ietf type is configured with the encapsulation frame-relay ietf command. ietf frame-relay encapsulation is usually used only when
connecting Cisco routers to non-Cisco devices.
Once you've configured frame-relay encapsulation, and the interface is up, you
should begin seeing LMI status messages. If the PVC has been provisioned, you can see it
with the show frame-relay PVC command:
Router-A#sho frame pvc
PVC Statistics for interface Serial0/0 (Frame Relay DTE)
Active Inactive Deleted Static
Local 0 0 0 0
Switched 0 0 0 0
Unused 0 1 0 0
DLCI = 102, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.