[Enterasys] Port Mirroring Sample Configuration

Tweet source port 1/13 destinaion port 1/10 Console(Config)#interface Ethernet 1/1 Console(Config-if)#port monitor Ethernet 1/4 Console(Config-if)#

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Cisco loop testing must be done by Encapsulation HDLC

Tweet Loop testing is common method for isolating and troubleshooting circuit related issue or rule out hardware issue for serial or SONET links. I guess…

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FCS errors on Overture Networks ISG by misconfig

Tweet Overture Networks is one of performed vendor on Carrier Ethernet services market. Few big ISPs are using their product. Recently, I met packet lost…

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How to upgrade firmware for Enterasys switches

Tweet As you know Enterasys was named Cabletron company long long time ago. I guess more than decade. Cabletron was one of strong vendor on…

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Basic JUNOS CLI commands for Juniper router and switches

Here is a list of basic JUNOS commands. Enjoy ! Basic Interfaces M Series and T series : fe-2/1/0fe: Type of Interface2 : FPC1: PIC0…

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[Cisco] Options and functions that are available from the CLI

Tweet The following table describes the different shortcut options and functions that are available from the Cisco Command Line Interface. Keystroke Function Ctrl-A Jumps to…

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[Cisco tips] Configuring CDP(Cisco Discovery Protocol)

Tweet CDP is propritary protocol by Cisco. It is enable as default on most of interface, but few exception such as ATM interface. This protocol…

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Basic CLI commands for Cisco router

Tweet Here is a list of basic Cisco’s commands. Enjoy !   access-class Applies a standard IP access list to a VTY line access-list Creates…

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[Cisco] Error message ‘disabled analyzed idbs-rem’ on Cisco 7000

Tweet If you got error message below from your system/Cisco 7000 series router. "Board is disabled analyzed idbs-rem" Try the following command to bring it…

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[Cisco] How to Check CEF (Cisco Express Forwarding)

Tweet Cisco Express Forwarding (CEF) is advanced Layer 3 IP switching technology. CEF optimizes network performance and scalability for networks with large and dynamic traffic…

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[Cisco] High Process CPU time on Cisco router

Tweet When you see a latency or slow response to your destination, check your router CPU time. If it’s high, it means something abnormal or…

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[Cisco] Password recovery – Router

Tweet Attention If the below procedure doesn’t work for you, contact vendor/website or IT company for help.   Cisco Router Password recovery   Step 0….

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