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IOS Upgrade

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November 29, 2011  5:10 AM

What is “socket SO_UDPCHECKSUM option setting failed error” in Cisco Catalyst 6500 Series Switch?



Posted by: Yasir Irfan
12.2(33)SXI1, Cisco, Cisco Catalyst 6500 Series Switch, Cisco Logs, Cisco Switches, configuration of IP SLA, IOS bug, IOS Upgrade, IP SLA, IP SLA errors, socket SO_UDPCHECKSUM option setting failed error, Switches Configurations, torubleshooting, What is “socket SO_UDPCHECKSUM option setting failed error” in Cisco Catalyst 6500 Series Switch

While checking the daily logs in one our Cisco Catalyst 6500 Series Switch I figured out following error "socket SO_UDPCHECKSUM option setting failed error". For the past five years this Cisco Catalyst Switch worked well without any problems, the sudden emergence of this error "socket...

December 27, 2009  11:15 AM

How to repair a corrupted IOS in Cisco 1250 access point Series 3?



Posted by: Yasir Irfan
boot, Cisco 1250 Series Access Point, Cisco Access Point, Cisco Configuration, Cisco errors, Cisco Tips, corrupted IOS, How to repair corrupted IOS in Cisco 1250 access point, IOS file, IOS Upgrade, set BOOT flash, set DEFAULT_ROUTER, set IP_ADDR, set NETMASK, solar winds TFTF server, tar -xtract, tar –xtract tftp, tftp_init, The system is unable to boot automatically because there are no bootable files, Wireless


December 26, 2009  9:16 AM

How to repair a corrupted IOS in Cisco 1250 access point Series 2?



Posted by: Yasir Irfan
boot, Cisco 1250 Series Access Point, Cisco Access Point, Cisco Configuration, Cisco errors, Cisco Tips, corrupted IOS, How to repair corrupted IOS in Cisco 1250 access point, IOS file, IOS Upgrade, set BOOT flash, set DEFAULT_ROUTER, set IP_ADDR, set NETMASK, solar winds TFTF server, tar -xtract, tar –xtract tftp, tftp_init, The system is unable to boot automatically because there are no bootable files, Wireless


December 22, 2009  5:15 AM

How to repair a corrupted IOS in Cisco 1250 access point Series 1?



Posted by: Yasir Irfan
Cisco 1250 Series Access Point, Cisco Access Point, Cisco Configuration, Cisco errors, Cisco Tips, corrupted IOS, How to repair corrupted IOS in Cisco 1250 access point, IOS Upgrade, The system is unable to boot automatically because there are no bootable files, Wireless

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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


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