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Cisco IOS


March 14, 2009  5:22 AM

Cisco Systems released Cisco® IOS® Software updates for Cisco Catalyst® 3750-E, 3750, 3560-E, 3560, and 2960 Series Catalyst Switches



Posted by: Yasir Irfan
3560E, Advanced IP Services, Auto Smartports, Cisco 12.2(50)SE, Cisco Catalyst 2960, Cisco Catalyst 3650, Cisco Catalyst 3750 Series, Cisco EnergyWise, Cisco IOS, Cisco IOS Release, Identity-based networking, IP Base, IP Services

Cisco Systems announces the release of Cisco IOS ® Software Release

December 27, 2008  6:19 AM

Cisco Etherchannel Overview and how it can be configured in Cisco Catalyst Switches – Series 3



Posted by: Yasir Irfan
802.3ad, Cisco, Cisco 2950, Cisco 2960, Cisco 3560, Cisco 3750-E, Cisco 6500, Cisco 6500 Series Catalyst Switch, Cisco IOS, Cisco Learning, Cisco Systems, Cisco Tips, Etherchannel, Etherchannel configuration, Etherchannel restrictions, IEEE, LACP, Link Aggregation Control Protocol, Networking, PAGP, Port Aggregation Protocol, Protocol, Switches, Switching

Dear Friends, hope everyone is having great holidays, have fun. In my

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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 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 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 12, 2008  12:56 PM

Solution for %IP-4-DUPADDR: Duplicate address error log in your Cisco 6500 Switches running HSRP



Posted by: Yasir Irfan
Cisco, Cisco 6500, Cisco 6500 Series Catalyst Switch, Cisco Catalyst 6513 Switch, Cisco IOS, Cisco Learning, Cisco Support, Cisco Systems, Cisco Tips, Hot Standby Router Protocol, HSRP, Network Troubleshooting, Routing and Switching, Switches, Switching, TAC, WebEx

Dear Friends In


October 26, 2008  5:55 AM

In which slot shall we install the Supervisor Engine in Cisco 6500 Series Catalyst Switches -Series1



Posted by: Yasir Irfan
Cisco, Cisco 6500, Cisco 6500 Series Catalyst Switch, 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 Design, Cisco IOS, Cisco Systems, Cisco Tips, DataCenter, Module, Networking, Slot, Switches

Dear Friends the Cisco 6500 Series Catalyst Switch comes in different models like


October 20, 2008  5:06 AM

How to configure SNMPv3 in a Cisco Catalyst Switch – Series 2



Posted by: Yasir Irfan
Cisco, Cisco 2950, Cisco 2960, Cisco 3560, Cisco 6500, Cisco IOS, Cisco Learning, Cisco Systems, Cisco Tips, SNMP, SNMPv3, Switches

In the first series we just started to know about


October 12, 2008  5:17 AM

How to configure SNMPv3 in a Cisco Catalyst Switch – Series 1



Posted by: Yasir Irfan
Cisco, Cisco 2950, Cisco 3560, Cisco 3560-E, Cisco 3745, Cisco 6500, Cisco IOS, Cisco Learning, Cisco Tips, IOS commands, RFC3410, Security, SNMP, SNMP Version 3, SNMPv3, Switches

Configuring SNMP Version 3 in a