What is the Link-flap error in Cisco Switches?
Link flap means that the interface continually goes up and down in a Cisco Switch. The interface is put into the errdisabled state if it flaps more than five times in 10 seconds. The common cause of...
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Discover Cisco Network Assistant (CNA)
Cisco Network Assistant (CNA) is a PC-based graphical network management application which is free tool included when a new Cisco Switch is purchased. Cisco Network Assistant (CNA) is capable of...
View ArticleA cool tool to solve layer 1 UTP cable issues in Cisco Catalyst Switches.
Here is a simple and cool tool for solving layer 1 UTP cable issues in a Cisco Catalyst Switches, the command used for this function is “test cable-diagnostics tdr interface” Here is the example...
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How to reset/delete the password & configuraton on a Cisco WS-C350-48-SMI
This article describes the procedure for resetting / delete the password & current configuration on a Cisco Catalyst WS-C3550-48-SMI.Model: WS-C3550-48-SMI Warning: This procedure will remove...
View ArticleWhy should we consider implementing DHCP Snooping?
Dear FriendsIn my previous post I was discussing about the DHCP Snooping, it may be hard to believe a DHCP sever can lead to lot troubles in your network. Consider a host sends out DHCP discovery...
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How to configure DHCP Snooping in a Cisco Catalyst Switches.
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...
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How to configure SPAN(Switched Port Analyzer ) feature in a Cisco Catalyst...
It’s quite important for Network Engineers and an essential network troubleshooting technique to utilize the ability of Cisco Catalyst Switches to mirror the traffic and send it to a sniffer for...
View ArticleHow to configure an interface to default settings in a Cisco Switch or a...
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 to...
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Cisco Etherchannel Overview and how it can be configured in Cisco Catalyst...
Dear Friends, in my previous post I just introduced Etherchannel, now let’s proceed one step ahead, there are certain limits with the Etherchannel lets figure out what are those limits, ·...
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Cisco Etherchannel Overview and how it can be configured in Cisco Catalyst...
Dear Friends, hope everyone is having great holidays, have fun. In my previous post I was focusing on some of the limitations of Etherchannel. Now let’s proceed a step ahead and figure out about the...
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