Difference between revisions of "Network Switch Testing"

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== Introduction ==
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#REDIRECT [[Network Testing]]
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The network device testing station currently consists of two computers: A server and a client PC. These machines are not connected to the Free Geek network, and boot from their internal hard drives. They both run Linux.
 
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The '''server''' runs httpd as a web server and has an IP address at 10.10.10.10. It has a dumb index.html homepage. The important part of this web server is it hosts a file called TESTFILE.ZIP. This is just an arbitrary file about 32MB in size. This machine boots to init 2 (command line) and doesn't need to be logged into to use (although if you are nice you will log into it to shut it down.) This machine is currently a Compaq mini-tower.
 
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The '''client''' computer is a small-form-factor Dell desktop, which also boots to a command-line login. It's IP address is 10.10.10.11. It has a script called /bin/ht (hub test...). The script does these things:
 
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<ul>
 
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<li>Pings the server to make sure it can be contacted over the network,</li>
 
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<li>Downloads (wget) the TESTFILE.ZIP from the server through it's network card (to /ramdisk), </li>
 
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<li>Checks the TESTFILE.ZIP against it's known MD5 checksum,</li>
 
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<li>Spits out a message whether the test completed successfully or failed.</li>
 
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</ul>
 
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The network device testing station also has a 10baseT hub (3com). This is also used for testing - we want any 100baseT hubs tested and sold in the store to downgrade gracefully if a 10baseT device is connected. Many first-generation 100baseT hubs do not work with 10baseT devices at all, and this will cause problems and confusion in a mixed network. 10baseT devices such as network printers and DSL modems are still commonly used and should work on any devices offered to the public.
 
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== Recycle Criteria ==
 
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Recycle any of these network devices:
 
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<ul>
 
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<li> DSL and Cable modems (and DSL filters, phone cables, etc, if the store already has a few)</li>
 
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<li>DSL and Cable modems with built in hub, 'internet router', or wireless</li>
 
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<li>10baseT hubs</li>
 
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<li>100baseT hubs that do not work with 10baseT (testing required)</li>
 
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<li>cheap-looking little no-name-brand hubs if they are piling up at the testing station</li>
 
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<li>cheap-looking little no-name-brand hubs if a matching power adapter can't be quickly found</li>
 
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<li>devices with noisy or bad fans, or that appear physically damaged</li>
 
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</ul>
 
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Leave for (very) advanced testing:
 
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<ul>
 
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<li>Consumer-grade internet routers (with WAN ethernet port, not with DSL or Cable ports)</li>
 
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<li>Consumer-grade wireless access points and wireless routers</li>
 
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<li>Managed 10/100 switches with a console port that do not seem to pass testing</li>
 
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<li>Professional-looking rack mount routers, firewalls, and other network devices</li>
 
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</ul>
 

Latest revision as of 18:11, 16 September 2008

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