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Cisco Learning


September 24, 2008  8:27 AM

How to configure intervlan routing between Cisco Catalyst Switches and HP Procurve Switches Series 2



Posted by: Yasir Irfan
Cisco, Cisco 3560, Cisco 3560-E, Cisco Learning, Cisco Tips, HP Procurve, HP switches, Intervlan routing, IOS commands, IP Address, Networking, Switches

In my previous post

September 1, 2008  9:42 AM

Most Commonly used Network Layer Utilities



Posted by: Yasir Irfan
ARP, CCNA, Certifications, Cisco, Cisco Learning, Cisco Tips, DHCP, DNS, Network Layer Utilities, Networking, OSI Layer 3, Ping

I was just thinking about the most commonly used Network Layer utilities in day to day business. Here are they which are useful to guys who are aspiring for their CCNA. 1) Address Resolution Protocol (ARP) 2) Domain Name Systems (DNS) 3) Dynamic Host Configuration Protocol (DHCP) 4)...


August 30, 2008  5:16 AM

A cool tool to solve layer 1 UTP cable issues in Cisco Catalyst Switches.



Posted by: Yasir Irfan
Cisco, Cisco 3560, Cisco 3560-E, Cisco 3750-E, Cisco Learning, Cisco Tips, IOS commands, Layer 1 issues, Network Troubleshooting, Switches

Here is a simple and cool tool for solving layer 1 UTP cable issues in a Cisco Catalyst Switches, the command used for this function is "test cable-diagnostics tdr interface" Here is the example MBGF-DAC-3560-AS01#test cable-diagnostics tdr interface gigabitEthernet 0/1 TDR test started on...


August 24, 2008  6:20 AM

How to reset the Cisco Catalyst Switch to Factory Defaults



Posted by: Yasir Irfan
Cisco 2950, Cisco 6500, Cisco Learning, Cisco Tips, Network Troubleshooting, Networking, Switches

To reset the Cisco Catalyst switches to factory defaults, you need access to the Cisco Catalyst Switch console through either a physical console or a Telnet connection. You also need the console/enable passwords. If you forget the console and...


August 9, 2008  6:35 AM

Cisco’s Come Back Program



Posted by: Yasir Irfan
CCDA, CCIE, CCNA, CCNA Security, CCNA Voice, CCNA Wireless, CCNP, Certifications, Cisco, Cisco Learning, Cisco Tips, Pearson

Now there is a good news for networking professionals who are aspiring for Cisco Certifications.  You can retake the exams for free under Cisco “Come Back” program. Cisco and Pearson VUE have partnered to give networking professionals the opportunity to re-invest in...


July 17, 2008  9:45 PM

How to display the configuration of a single interface in Cisco Router or a Switch



Posted by: Yasir Irfan
Cisco, Cisco 2950, Cisco 3560, Cisco 3560-E, Cisco 3745, Cisco 3750-E, Cisco 6500, Cisco Learning, Cisco Tips, Networking, Routers, Switches

Displaying configuration of a single interface can be a time-consuming task if your router or a switch  has extremely long configuration. In this case, the interface keyword of the show running-config command becomes extremely useful. For example, the show running-config interface serial 0/1 ...


July 15, 2008  6:36 AM

How to Secure SNMP in Cisco Switches and Routers



Posted by: Yasir Irfan
Access List, Cisco, Cisco 2950, Cisco 3560, Cisco 3560-E, Cisco 3745, Cisco 3750-E, Cisco 6500, Cisco Learning, Cisco Tips, Networking, Routers, SNMP, Switches

This article focus on the ways how we can secure SNMP access in Cisco Switches and Routers Simple Network Management Protocol (SNMP)   uses the default UDP port 161 for general SNMP messages and UDP port 162 for SNMP trap...


July 1, 2008  7:25 AM

New CCNA Certifications– CCNA Voice, CCNA Security & CCNA Wireless



Posted by: Yasir Irfan
CCNA, CCNA Security, CCNA Voice, CCNA Wireless, Cisco Learning

As the network trends are changing so does Cisco, they came up with three new certifications. The hot new areas for CCNA Certifications are Voice, Security and Wireless. Intorduction of these three certifications can assure and help you to verify the specialized skills that are great demand among...


June 30, 2008  6:28 AM

Good Bye CCNA Prep Center. CCNP Prep Center



Posted by: Yasir Irfan
CCDA, CCIE, CCNA, CCNP, Certifications, Cisco, Cisco Learning, Cisco Tips, Routers, Switches

Do you know Cisco is closing the CNNA Prep Center,CCNP Prep Center, Certifications Community Site and the Cisco Learning Connection sites and will not be accessible after July 25, 2008. They came up with a new portal known as Cisco Learning Network which has lot of resources, which are helpful to...


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