by Ted Haubein | Jul 22, 2014 | Routing, Switching
Cisco Express Forwarding or CEF is advanced, Layer 3 IP switching technology. CEF optimizes network performance and scalability for networks with large and dynamic traffic patterns, such as the Internet, on networks characterized by intensive Web-based applications,...
by Ted Haubein | Jul 12, 2014 | Routing
An interior gateway protocol or IGP such as RIP, or OSPF is basically any routing protocol running within an Autonomous System. The routing information or prefixes exchanged within the various Autonomous Systems can be used to populate the Layer 3 routing tables....
by Ted Haubein | Jun 27, 2014 | Wireless
A lightweight access point or AP discovers a Wireless LAN Controller or a WLC at Layer 2 by using the LWAPP discovery protocol. The controller or WLC sends the access point an LWAPP join response after the LWAP AP has issued a join request. When the AP has joined to...
by Ted Haubein | Jun 21, 2014 | Firewall
I believe that Cisco introduced the ability to capture packets in or around version 7.x of the PIX/ASA platforms as well as the FWSM. Along with the Packet Tracer this may simply be one of the most powerful troubleshooting tools in the Firewall arsenal. The ability to...
by Ted Haubein | Jun 19, 2014 | Wireless
If your planning on running voice or you already have voice running on your network, and you have a Wireless infrastructure in place there are some important consideration to keep in mind. The following list of considerations are ones I try to implement when I’m...
by Ted Haubein | Jun 7, 2014 | CCIE
CCIE Routing and Switching Written Exam v5.0 (400-101) Network Principles – 10 % 1.1 Network theory 1.1.a Describe basic architecture differences between IOS and IOS XE 1.1.a (i) Control plane and Forwarding plane 1.1.a (ii) Impact to troubleshooting and...
by Ted Haubein | May 31, 2014 | Routing
Mandatory Well Known BGP Attributes There are three mandatory well known attributes that must be present on every update. These three well known attributes are propagated to other Neighbors. The discretionary well known attributes may be present, but are not...
by Ted Haubein | May 20, 2014 | Switching
If implemented correctly the Spanning Tree Protocol or STP is like your best Friend. Simply put it prevents loops forming at Layer 2 when switches are bridged interconnecting via multiple paths. The key in the last sentence was the term multiple paths. The Spanning...
by Ted Haubein | May 15, 2014 | Voice
The North American Numbering Plan or NANP is the Governing Body for North American countries that share its numbering resources. These countries include the United States, Canada, Bermuda, Anguilla, Antigua & Barbuda, the Bahamas, Barbados, the British Virgin...
by Ted Haubein | Apr 30, 2014 | Humor
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