ipBalance

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When you are testing WAN links, applying different patterns would be good idea to isolate an issue. Here is output of each testing pattern.

0x0000 - Sending binary all 0's (zeroes) to see a failure if the line is mis-coded

0xFFFF - Sending binary all 1's (ones) to see a failure if the line is mis-coded. All 1's also tests for bad equipment. The repetative 1's signal stresses out equipment. This is a good indicator of equipment which is starting to go bad, due to the fact that it cannot keep the heavy '1' signal.

0x5555 - Sending binary alternating 1's and 0's to see a failure on bad repeater

0x8080 - Sending patterns 3-in-24 to see a failure on bad repeater, this is '1 in 8'

0x1000 - To see a failure on bad MUX/DACS