[j-nsp] Antwort: Re: Bad TCP Session Performance

[Hannes Gredler]

ok 7.0R2.7 is not affected by the TCP problem
that was mentioned by luiz;

did you do perform your throughput test from the RE to some host on the net ?

/hannes

jens.hoffmann at ddkom.de wrote:
> Hi Hannes,
> 
> I'm using the same JUNOS 7.0R2.7 on each device (M7i, M10i, M5 and M10).
> 
> The end to end RTT is not conspicuous.
> 
> Model: m7i
> JUNOS Base OS boot [7.0R2.7]
> JUNOS Base OS Software Suite [7.0R2.7]
> JUNOS Kernel Software Suite [7.0R2.7]
> JUNOS Packet Forwarding Engine Support (M7i/M10i) [7.0R2.7]
> JUNOS Routing Software Suite [7.0R2.7]
> JUNOS Online Documentation [7.0R2.7]
> JUNOS Crypto Software Suite [7.0R2.7]
> 
> Kind Regards
> Jens
> 
> 
> Hannes Gredler <hannes at juniper.net> schrieb am 03.04.2006 09:20:27:
> 
> 
>>jens,
>>
>>what JUNOS S/W do you run ?
>>
>>/hannes
>>
>>jens.hoffmann at ddkom.de wrote:
>>
>>>
>>>
>>>Hi,
>>>
>>>I have a litlle bit tricky problem.
>>>
>>>Without packet loss, large latency and lack of WAN bandwidth  I'm
> 
> recognize
> 
>>>a limited TCP session bandwidth at about 16-20 Mbps for every single
> 
> TCP
> 
>>>session.
>>>
>>>At first I had the suspect that the problem is caused by enabled flow
>>>control on some ethernet interfaces. But the problem appears also with
>>>disabled flow control.
>>>Policers are also not configured on the path of the session.
>>>
>>>I'ld be very pleased for some helpful advice.
>>>
>>>Kind Regards,
>>>Jens