Network technologies and trends:

Cisco IOS


October 6, 2008  7:34 AM

Things to be considered before upgrading an IOS in a Cisco 6500 Series Switch with SUP720- Series 3



Posted by: Yasir Irfan
Cico 6500 IOS Upgarde, Cisco 6500, Cisco 6500 Power Supply, Cisco IOS, Cisco Tips, IOS commands, IOS Upgrade, Network Troubleshooting, Networking, Redundency, Redundent Power Supply, Switches

In the second series I  was...

October 4, 2008  12:21 PM

Things to be considered before upgrading an IOS in a Cisco 6500 Series Switch with SUP720- Series 2



Posted by: Yasir Irfan
Cico 6500 IOS Upgarde, Cisco, Cisco 6500, Cisco IOS, Cisco Tips, IOS commands, IOS Upgrade, Networking, Switches

In the first series I was talking about the TFTP severs, now let’s proceed further, one more key...


September 29, 2008  12:26 AM

Things to be considered before upgrading an IOS in a Cisco 6500 Series Switch with SUP720- Series 1



Posted by: Yasir Irfan
3Com TFTP, Cisco, Cisco 6500, Cisco IOS, Cisco Learning, Cisco Tips, DataCenter, IOS Upgrade, Network Troubleshooting, Networking, PacketTrap pt360, PacketTrap TFTP, SolarWinds, Switches, TFTP Server

Today I successfully upgraded the IOS for a Cisco Catalyst 6513 Switch with Supervisor Engine SUP720. Couple of years I faced some problems while I was upgrading the IOS for


September 24, 2008  6:27 PM

How to turn a Cisco Router into ASA..



Posted by: Yasir Irfan
ASA/PIX, Basic Firewall, Cisco, Cisco ASA, Cisco IOS, Cisco IOS Firewall, Routers, ZFW

Guess what your Routers  support zone-based policies, which really helps with multi-interface restrictions (rather than just one outside & one inside interface with individual access list applications). Likewise, it now supports application inspection to catch those scandalous...


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