Monthly Archives: May 2010

Reviewing information from multiple sources, taking training classes, on the job experience(the best) and passing those exams are helpful in establishing oneself as a serious engineer.  Here is an uptodate review of the old, “are exams worth the trouble” because … Continue reading →

Open source network analyzer.  Another post Ethernet II vs 802.3 has some wireshark links to packets like CDP and ARP?  Here are some more links about Wirshark and I will use this post to keep track of the links  Laura … Continue reading →

40 minutes of video on STP switching loops http://www.thebryantadvantage.com/CCNAWebinars.htm Review STP in prep for EtherChannel.  Root Bridge, BPDU, Bridge ID, STP database, Port cost, Nondesignated ports, forwarding ports, blocked ports. DEC protocol is STP.  IEEE version is 802.1D

This is actually password recovery but bypass startup-config gives more meaning.  Sometimes you can save your configuration and when you reboot it goes into setup mode. http://www-tss.cisco.com/eservice/compass/common/activities/password_1700.htm Cisco password recovery  google keywords Cool video from bryant advantage  http://www.thebryantadvantage.com/CCNA640802CCENTConfigurationRegister.htm Latest Cisco … Continue reading →

http://www.informit.com/store/product.aspx?isbn=1587202174 Network lab simulator

Interconnecting Cisco Networking Devices 1 (ICND1)  http://www.cisco.com/web/learning/le3/current_exams/640-822.html and the CCNA http://www.cisco.com/web/learning/le3/le2/le0/le9/learning_certification_type_home.html

In May 2010 Windows 7 is being sold in the stores and most people have Vista on their laptops.  Windows XP is rare except in lab environments especially among new users who want to learn networking. Cisco seems slow to update their … Continue reading →

Specifically CDP/DTP Here is the CDP packet screen capture https://sat450.files.wordpress.com/2010/05/cdp.png  http://wiki.wireshark.org/CDP is where I got the packet capture file. Framing types are listed here http://osr507doc.sco.com/en/NetConfigG/configparamsC.framing_type.html and it says, “Ethernet SNAP framing allows network protocol stacks to use Ethernet II frames … Continue reading →

Lamlee’s post on Cisco https://learningnetwork.cisco.com/message/66124#66124 and another recommendation http://www.subnettingquestions.com/  see also Cisco on Subnet Zero Subnet Practice with Class A addresses http://faculty.valleycollege.net/rpowell/jscript/subnet2.htm Area 51 game was sub-netting a class b address and this practice link subnets class a addresses.  Seems … Continue reading →