About Me

MTIN is a full service consulting firm with over 15 years of experience. We specialize in ISP networks.  Other clients include enterprise, education, government, and SOHO.  We have Mikrotik, Cisco, and other certified engineers on staff. Our corporate page can be found at http://www.mtin.net

 

September 2010
M T W T F S S
« Aug    
 12345
6789101112
13141516171819
20212223242526
27282930  

Tips for network troubleshooting

Some things that are often overlooked when it comes to troubleshooting a network.

Things to do beforehand:
1.Make sure documentation is up to date.  At the very least you should have some sort of change management software which is easy to use.  When you make a change, fix a problem, or whatever take the extra minute to update [...]

  • Digg
  • LinkedIn
  • StumbleUpon
  • Twitter
  • WordPress
  • Facebook
  • Share/Bookmark

IT Dualism Home Lab – crashed router troubleshooting « IT Dualism

Good article on router troubleshooting.

Home Lab – crashed router troubleshooting « [...]

  • Digg
  • LinkedIn
  • StumbleUpon
  • Twitter
  • WordPress
  • Facebook
  • Share/Bookmark

Difference between signal strength and quality

One of the things I have to explain to clients on a regular basis is the difference between signal strength and quality of that signal.  It is possible to have a good signal strength but poor quality.  Think of receiving a wireless signal as a person with a megaphone at the opposite end of a football [...]

  • Digg
  • LinkedIn
  • StumbleUpon
  • Twitter
  • WordPress
  • Facebook
  • Share/Bookmark

Cisco Wireless Troubleshooting

After doing some troubleshooting for a client I figured I would post some links for others here.  Most of you can find this with a simple google search but I felt the need to [...]

  • Digg
  • LinkedIn
  • StumbleUpon
  • Twitter
  • WordPress
  • Facebook
  • Share/Bookmark

Cisco Common troubleshooting commands

show version:gives uptime, info about your software and hardware and a few other details.

show ip interface brief

show interface:

show ip interface:

show ip route:

show arp:

show running-config:

show port:

show [...]

  • Digg
  • LinkedIn
  • StumbleUpon
  • Twitter
  • WordPress
  • Facebook
  • Share/Bookmark

Cisco Quick tip

Router# show interface serial0

Serial is up line protocol is up, it is the first message that shows us that your serial port is configure properly. It is just possible when you have already given IP address, run no shutdown and configures some other command.

There are some possible errors messages may occur [...]

  • Digg
  • LinkedIn
  • StumbleUpon
  • Twitter
  • WordPress
  • Facebook
  • Share/Bookmark