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Old 02-06-2011, 21:10   #30
pip08456
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Join Date: Aug 2007
Location: Barry South Wales
Age: 69
Services: With VM for BB 250Mb service.(Deal)
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Re: My Stats and PM from Virgin

Quote:
Originally Posted by Masque View Post
We find that downstream now should not be above 11dBmv and not really below -7dBmv

The hubs seem to prefer to be below 8dBmv 0n the downstream though.

Upstream anything above 55dBmv can cause an issue.

With regards to upstream the Motorola BSR's do not show higher than 58.2dBmv whereas the Cisco uBR's can show a maximum of 61dBmv
If the hub prefers to be less than 8dB downstream and we know the VMNG300 doesn't like above 7dB downstream what is the rationale for 11dB being acceptable?
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