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November 9, 2008  6:51 AM

Don’t panic whenever you see %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 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, Hot Standby Router Protocol, HSRP, Network Troubleshooting, Networking, Routing and Switching, Switches, Switching, Trojan

If you are running HSRP and one of your VLAN is down and the following errors are generated in your Switch don’t panic. All this happens due the Trojans in the network.

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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

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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

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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

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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...

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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...

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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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September 22, 2008  6:53 AM

How to configure intervlan routing between Cisco Catalyst Switches and HP Procurve Switches Series 1.



Posted by: Yasir Irfan
Cisco, Cisco 6500, Cisco Tips, HP Procurve, HP switches, Intervlan routing, IOS commands, Networking, Switches, Trunking

In this series of article you are going to experience how to configure VLAN trunking between HP Procurve Switches  and

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September 6, 2008  10:40 AM

The best way to record the serial number for Cisco Devices for Remote support.



Posted by: Yasir Irfan
Cisco, Cisco 2950, Cisco 3745, Cisco 6500, Cisco Tips, IOS commands, Switches, Telnet

Imagine if you are accesing the remote router and need to figure out the serial number for a router or the Circuit IDs of the serial interface, then you may start looking your docmented data or call the remote technician to help you out in figuring these details. The best and easy way to get...

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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...

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