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1). Cisco CCNA Certification: How And Why Switches Trunk
Your CCNA studies are going to include quite a bit of information about switches, and for good reason. if you don't understand basic switching theory, you can't configure and troubleshoot Cisco switches, either on the CCNA exam or in the real world. That goes double for trunking!
Trunking is simply enabling two or more switches to communicate and send frames to each other for transmission to remote hosts.
Article tags: ccna, ccnp, free, tutorial, pass, switch, isl, dot1q, trunk, port, exam, router, switch, cisco, bsci, cit, bcran, configure, ebook, chris, bryant, ccie, 12933, advantage
2). Cisco CCNP Certification / BCMSN Exam Tutorial: Uplinkfast
You remember from your CCNA studies that when a port goes through the transition from blocking to forwarding, you're looking at a 50-second delay before that port can actually begin forwarding frames. Configuring a port with PortFast is one way to get around that, but again, you can only use it when a single host device is found off the port. What if.
Article tags: cisco, ccnp, certification, exam, pass, bcmsn, uplinkfast, switch, root, bridge, port, failure, ccie
3). Cisco CCNP / BCMSN Exam Tutorial: Dynamic VLANs and VMPS
Knowledge of Dynamic VLANs and VMPS is important in your efforts to pass the BCMSN exam and earn your CCNP, and it's also a great skill to have for your networking career.
As a CCNA and CCNP candidate, you know how and why to configure static VLANs. Static VLANs can be a powerful tool for reducing unnecessary broadcast and multicast traffic, but if hosts are moved from one switch port to another, you've got to make those changes manually on the switch.
Article tags: ccnp, bcmsn, pass, exam, training, vmps, dynamic, vlan, network, port, assignment, free, host, mac, address, switch
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5). Cisco CCNP / BCMSN Exam Tutorial: Configuring PortFast And BPDU Guard
In your CCNA studies, you learned about PortFast and the trouble it can cause if configured on the wrong port! Suitable only for switch ports connected directly to a single host, PortFast allows a port running STP to go directly from blocking to forwarding mode.
A Cisco router will give you a warning when you configure PortFast:
SW1(config)#int fast 0/5
SW1(config-if)#spanning-tree portfast
%Warning: portfast should only be enabled on ports connected to a
single host.
Article tags: cisco, ccnp, certification, bpdu, guard, portfast, port, fast, switch, err-disabled, exam, pass
6). Cisco CCNA Certification Exam Tutorial: Port-Based Authentication
To pass your CCNA exam and earn this coveted certification, you must understand the details of port-based authentication. This knowledge has a great deal of value in production networks as well, since this authentication scheme is regularly implemented. Let's take a look at this particular CCNA skill.
Consider a situation where you have a server that will be connected to your switch, and you want the port to shut down if a device with a different MAC address that that of the switch attempts to connect to that port.
Article tags: ccna, cisco, certification, switch, port, based, authentication, free, pass, exam, secure, mac, ccie
7). Cisco CCNP / BCMSN Exam Tutorial: Dynamic Trunking Protocol (DTP)
When you're studying to pass the BCMSN exam on the way to earning your CCNP certification, you're going to add to your CCNA knowledgebase every step of the way. Nowhere is that more than configuring a trunk between two switches.
You know that IEEE 802.1Q ("dot1q") and ISL are your two choices of trunking protocols, and you know the main differences between the two.
Article tags: dtp, trunk, ccnp, bcmsn, exam, free, tutorial, dynamic, trunking, protocol, switch, port, nonegotiate