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Contents contributed and discussions participated by DonDevis Charlie

DonDevis Charlie

The show interface Command - 0 views

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    You can use the show interface command to check for LMI traffic. The show interface command displays information about the encapsulation, as well as layer 2 and layer 3 information.
DonDevis Charlie

The show frame map Command - 0 views

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    The show frame map command displays the Network layer-to-DLCI mappings. Here's how that looks
DonDevis Charlie

The debug frame lmi Command - 0 views

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    The debug frame lmi command will show output on the router consoles by default (as with any debug command).
DonDevis Charlie

Troubleshooting Frame Relay Networks - 0 views

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    Troubleshooting Frame Relay networks isn't any harder than troubleshooting any other type of network as long as you know what to look for, which is what I'm going to cover now.
DonDevis Charlie

Configuring PPP with Authentication Using SDM - 0 views

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    First, I'm going to configure the serial WAN link between the Corp router and the R3 router using PPP with Authentication.
DonDevis Charlie

Configuring PPPoE with SDM - 0 views

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    To configure PPPoE with SDM, we'll first need a router connecting to a DSL modem, and then we'll need to configure the interface as a client just as we did earlier. I'll make it painless by using SDM on my 871W router.
DonDevis Charlie

Configuring Frame Relay with SDM - 0 views

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    Now that our serial connection between the Corp and R3 routers is up and running with PPP and you know how to configure PPPoE, I want to show you how easy it is to set up Frame Relay using SDM.
DonDevis Charlie

Virtual Private Networks - 0 views

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    I'd be pretty willing to bet you've heard the term VPN more than once before. Maybe you even know what one is, but just in case, a virtual private network (VPN) allows the creation of private networks across the Internet, enabling privacy and tunneling of non-TCP/IP protocols.
DonDevis Charlie

Introduction to Cisco IOS IPSec - 0 views

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    Simply put, IPSec is an industry-wide standard suite of protocols and algorithms that allows for secure data transmission over an IP-based network that functions at the layer 3 network layer of the OSI model.
DonDevis Charlie

Security Protocols - 0 views

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    "The two primary security protocols used by IPSec are Authentication Header (AH) and Encapsulating Security Payload (ESP)."
DonDevis Charlie

Configuring VPNs/IPSec Using the SDM - 0 views

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    There are a lot of different ways to configure VPNs on your router. What I am going to do here is add a straight VPN connection between the Corp and R3 routers.
DonDevis Charlie

Configuring Quality of Service (QoS) across Our VPN Tunnel - 0 views

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    QoS is actually more secure, cost effective, even faster in today's networking environment! This is why I'm going to show you how to configure QoS on our VPN serial link-a great place to configure QoS in a production network, by the way.
DonDevis Charlie

Introduction to Wireless Technology - 0 views

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    Wireless LANs (WLANs) use radio frequencies (RFs) that are radiated into the air from an antenna that creates radio waves. These waves can be absorbed, refracted,or reflected by walls, water, and metal surfaces, resulting in low signal strength.
DonDevis Charlie

The 802.11 Standards - 1 views

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    "IEEE 802.11 was the first, original standardized WLAN at 1 and 2Mbps. It runs in the 2.4GHz radio frequency and was ratified in 1997 even though we didn't see many products pop up until around 1999 when 802.11b was introduced"
DonDevis Charlie

2.4GHz (802.11b) - 0 views

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    The 802.11b standard has been widely adopted by both vendors and customers who found that its 11Mbps data rate worked pretty well for most applications.
DonDevis Charlie

2.4GHz (802.11g) - 1 views

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    802.11b/g operates in the same 2.4GHz unlicensed band, migrating to 802.11g is an affordable choice for organizations with existing 802.11b wireless infrastructures.
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