[Asterisk-Users] IAX2 Softphone Quality & Network Cards

[Julio Arruda]

You may want to check if the autonegotiation "agreed" in both sides.
Older nic/drivers/switches would have problems with autonegotiation.

Also, statistics can tell you something about this..
Example, if you have shorts/runts in one port, and late-collisions in 
the L1 'peer' port (the other side of the cable), you may have one side 
in full and the other in half.
(the late-collisions would be counted in the half duplex side, and 
shorts/runts in the full-duplex side)

Adam Robins wrote:

>Everything is set to autoneg, NICs, switches and router 
>
>-----Original Message-----
>From: asterisk-users-bounces at lists.digium.com
>[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Julio
>Arruda
>Sent: Monday, August 29, 2005 8:43 AM
>To: Asterisk Users Mailing List - Non-Commercial Discussion
>Subject: Re: [Asterisk-Users] IAX2 Softphone Quality & Network Cards
>
>Matt Riddell wrote:
>
>  
>
>>Adam Robins wrote:
>> 
>>
>>    
>>
>>>Should it be in half duplex or full duplex? 
>>>   
>>>
>>>      
>>>
>>Full.
>>
>>    
>>
>AFAIK, depends...
>If you have your switches doing autonegotiation, you can't disable
>autoneg in the NIC and hardcode it to do 100/Full-duplex, or you WILL
>have a duplex mismatch.
>This is as per the standard.
>A duplex mismatch is really bad, is in fact worse than having segments
>doing halfduplex (properly).
>_______________________________________________
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