Re: [Lksctp-developers] SACK frequency

[Christian S. <e03...@st...>]

SACK frequency can be set over setsockopt and SCTP_DELAYED_SACK. It 
uses the structure sctp_sack_info as parameter. For more, you can take 
a look at the SCTP socket API:

http://tools.ietf.org/html/draft-ietf-tsvwg-sctpsocket-24#section-7.1.19

Christian


> Thanks Christian,
>
> How can we change this SACK frequency in lksctp kernel. I dont found any
> sysctl option for SACK frequency.
>
> -Smriti
>
>
>> Hi Smriti,
>>
>> SACK frequency is for the numbers of DATA packets, the receiver is
>> waiting before a SACK is sent back. The SACK is sent too when the SACK
>> timeout expires.
>>
>> For example:
>> SACK frequency = 5
>> SACK timeout = 200ms
>>
>> Then, SACK is sent after the 5th DATA packet or 200ms after the first
>> DATA packet - which comes first.
>>
>> Regards,
>> Christian
>>
>>
>>
>> > Hi ,
>> >
>> > Anyone have idea on SACK frequency in SCTP. What is SACK frequency .
>> >
>> > -Smriti
>> >
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>
>
>
> --
> Victory depends upon the capacity to wait
>