December 20, 2008  6:33 AM

Cisco Etherchannel Overview and how it can be configured in Cisco Catalyst Switches – Series 2



Posted by: Yasir Irfan
Cisco, Cisco 2950, Cisco 2960, Cisco 3560, Cisco 3750-E, Cisco 6500, Cisco Systems, Cisco Tips, Etherchannel, Etherchannel configuration, Etherchannel restrictions, Layer 2 Etherchannel, Layer 3 Etherchannel, Networking, Routing and Switching, Switches, Switching

Dear Friends, in my previous post I just introduced


December 15, 2008  6:55 AM

Cisco Etherchannel Overview and how it can be configured in Cisco Catalyst Switches – Series 1



Posted by: Yasir Irfan
10 GigaEtherchannel, 802.3ad, Cisco, Cisco 6500, Cisco IOS, Cisco Tips, Etherchannel, Etherchannel configuration, IEEE, Kalpana, Layer 2 Etherchannel, Layer 3 Etherchannel, Networking, Routing and Switching, Switches, Switching, Switching Secrets

Dear Friends in this upcoming series of posts I would like to concentrate on Etherchannel


December 13, 2008  6:27 AM

How to configure an interface to default settings in a Cisco Switch or a Cisco Router?



Posted by: Yasir Irfan
Cisco, Cisco 2950, Cisco 2960, Cisco 3560, Cisco 3745, Cisco 3750-E, Cisco 6500, Cisco 6500 Series Catalyst Switch, Cisco 6503, Cisco 877W Router, Cisco Catalyst 6503-E Switch, Cisco Catalyst 6506-E Switch, Cisco Catalyst 6509-E Switch, Cisco Catalyst 6509-V-E Switch, Cisco Catalyst 6513 Switch, Cisco IOS, Cisco Tips, Router Troubleshooting, Routers, Routing, Routing and Switching, Switches, Switching

This is a cool command to erase just the configuration for a particular interface in a Cisco Switch or a Cisco Router.

In the following example we will configure the interface fast Ethernet 0/9...


December 3, 2008  5:58 AM

Switching Secrets for Multimedia by TechWise TV



Posted by: Yasir Irfan
Cisco Events, Cisco Learning, Cisco News, Cisco Systems, Cisco Virtual Switching System, Netflow, PISA, Routing and Switching, Switches, Switching, Switching Secrets, TechWise TV, VSS

Dear Friends here is one more opportunity from Cisco Systems TechWise TV which reveals how to use the techniques, tools and innovations you might already have to effectively support rich communication and full service video without adding...


December 2, 2008  7:30 AM

How to configure SPAN(Switched Port Analyzer ) feature in a Cisco Catalyst Switch



Posted by: Yasir Irfan
Cisco, Cisco 2950, Cisco 2960, Cisco 3560, Cisco 3560-E, Cisco 3745, Cisco 3750-E, Cisco 6500, Cisco 6500 Series Catalyst Switch, Cisco 6503, Cisco Catalyst 6503-E Switch, Cisco Catalyst 6506-E Switch, Cisco Catalyst 6509-E Switch, Cisco Catalyst 6509-V-E Switch, Cisco Catalyst 6513 Switch, Cisco IOS, Cisco Learning, Cisco Tips, Network Troubleshooting, Show commands, Sniifer, SPAN, Switches, Switching, Wireshark

It’s quite important for Network Engineers and an essential network troubleshooting technique to utilize the ability of Cisco Catalyst Switches


November 26, 2008  5:59 AM

What is Dynamic ARP Inspection (DAI) ?



Posted by: Yasir Irfan
ARP, Cisco, Cisco Learning, Cisco Tips, DAI, DHCP, DHCP Snooping, Dynamic ARP Inspection, IP to MAC, Network Security, Security Features, Switches, Switching

Dynamic ARP inspection is a security feature which validates ARP packet in a network. Dynamic ARP inspections validates the packet by performing IP to MAC address binding inspection stored in a trusted database (the DHCP snooping database) before forwarding the packet....


November 22, 2008  12:56 PM

How to configure DHCP Snooping in a Cisco Catalyst Switches.



Posted by: Yasir Irfan
802.1 Q, CCNP, Cisco, Cisco 2950, Cisco 2960, Cisco 3560, Cisco 3560-E, Cisco 3750-E, Cisco 6500, Cisco 6500 Series Catalyst Switch, Cisco 6503, Cisco Catalyst 6503-E Switch, Cisco Catalyst 6506-E Switch, Cisco Catalyst 6509-E Switch, Cisco Catalyst 6509-V-E Switch, Cisco Catalyst 6513 Switch, Cisco IOS, Cisco Learning, Cisco Systems, Cisco Tips, Configuring DHCP Snooping, DHCP, DHCP Snooping, HSRP, IOS commands, Networking, Routing and Switching, Server Security, Switches, Switching, Trunk Ports

 So here we go, with the configuration of DHCP snooping on a Cisco Switch. This feature protects the network by allowing the Cisco Switches to accept DHCP response message only from the authorized servers connected to the trusted interfaces in a Cisco...


November 22, 2008  7:22 AM

Why should we consider implementing DHCP Snooping?



Posted by: Yasir Irfan
Cisco, Cisco 2950, Cisco 2960, Cisco 3560, Cisco 3560-E, Cisco 3750-E, Cisco 6500, Cisco 6500 Series Catalyst Switch, Cisco 6503, Cisco Systems, Cisco Tips, DHCP, DHCP Snooping, Err-disable, Networking, Security, Switches, Switching

Dear FriendsIn my previous post I was discussing about the


November 20, 2008  7:54 AM

What is Dynamic Host Configuration Protocol (DHCP) Snooping?



Posted by: Yasir Irfan
Cisco, Cisco 2960, Cisco 3560, Cisco 3745, Cisco 6500, Cisco 6500 Series Catalyst Switch, Cisco 6503, Cisco Catalyst 6503-E Switch, Cisco Catalyst 6506-E Switch, Cisco Catalyst 6509-E Switch, Cisco Catalyst 6509-V-E Switch, Cisco Catalyst 6513 Switch, Cisco Systems, Cisco Tips, DHCP, DHCP Snooping, Network Security, Security, Switches, Switching

Dynamic Host Configuration Protocol (DHCP) Snooping is a security feature which filters untrusted DHCP messages, this security feature can protects the devices on the network from associating with an unauthorized DHCP server. When the Dynamic Host Configuration Protocol...


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