Spiceworks – Resolve Unknown Windows Machines In A Domain Environment?

Tweet Spiceworks; How Do I Resolve Unknown Windows Machines In A Domain Environment? Best practice and workaround see below article; http://community.spiceworks.com/help/Resolving_Unknown_Devices#Domain

Continue Reading...

What cause “err-disable”?

What cause "err-disable"? see below conditions 1. Port-channel misconfiguration 2. DHCP snooping rate-limiting 3. Duplex mismatch 4. Bridge Protocol Data Unit(BPDU) Guard violation 5. UniDirectional…

Continue Reading...

Password recovery Cisco Catalyst 5000 tips

Tweet Password recovery in Cisco Catalyst 5000 switch is performed in the following steps. Power cycle the Cisco Catalyst 5000 switch. Hit the Enter key…

Continue Reading...

STP(Spanning-Tree Protocol) flash tutorial

Tweet Found the below link while googling some tutorial about STP(Spanning-tree Protocol).  It is easy to understand STP behavior. Enjoy http://www.cisco.com/image/gif/paws/10556/spanning_tree1.swf

Continue Reading...

STP(Spanning-Tree Protocol) Timers

Tweet STP(Spanning-Tree Protocol) Timers Hello timer Hello timer is the time between each Bridge Protocol Data Unit(BPDU) that is sent on a port. This is…

Continue Reading...

Light level information for Cisco 12000 SONET modules

  Check this URL to see all light level of Cisco module http://www.cisco.com/en/US/products/hw/modules/ps5455/prod_module_series_home.html   =========== CISCO 12008 =========== 4-port OC-3/STM-1 ATM/SDH MM LC w/SC (…

Continue Reading...

How enable scramble on Cisco SONET interface

Scrambling for POS interfaces is set on the interface itself. It is not a controller option..   Cisco Router# sho int pos5/1 POS5/1 is up,…

Continue Reading...

SONET Graphical Overview

This is very useful documentation for SONET basic 101. Must see if you are learning SONET or refresh your SONET knowledge. http://www.cisco.com/en/US/tech/tk482/tk607/technologies_tech_note09186a0080124afa.shtml

Continue Reading...
restore firefox default setting picture 1

How to restore Firefox default setting

Tweet Here is quick guide of "How to restore Firefox default setting" 1. From bottom status bar, click Start > Run and put " firefox.exe…

Continue Reading...
How to reduce Firefox high memory usage picture 1

How to reduce Firefox high memory usage

Tweet Here is useful tips to reduce Firefox high memory usage. Before changing options, you are better to save previous option in case any issues….

Continue Reading...

Click here to download plugin error on Firefox

Tweet Kept getting "Additional plugins are required to display all the media on this page" error. Of course, we have installed Apple Quicktime, Adobe Reader,…

Continue Reading...

How to configure BGP peer-session template

Here is "How to configure BGP peer-session template" [ Assignement ] All 4 routers are in AS 100 and linked in same Ethernet segment. Establish…

Continue Reading...