netdev - Re: [PATCH net v2] sctp: ASCONF-ACK with Unresolvable Address should be sent

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Date:	Fri, 28 Aug 2015 22:26:11 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	lucien.xin@...il.com
Cc:	netdev@...r.kernel.org, mleitner@...hat.com, vyasevic@...hat.com
Subject: Re: [PATCH net v2] sctp: ASCONF-ACK with Unresolvable Address
 should be sent

From: Xin Long <lucien.xin@...il.com>
Date: Fri, 28 Aug 2015 17:45:58 +0800

> RFC 5061:
>     This is an opaque integer assigned by the sender to identify each
>     request parameter.  The receiver of the ASCONF Chunk will copy this
>     32-bit value into the ASCONF Response Correlation ID field of the
>     ASCONF-ACK response parameter.  The sender of the ASCONF can use this
>     same value in the ASCONF-ACK to find which request the response is
>     for.  Note that the receiver MUST NOT change this 32-bit value.
> 
>     Address Parameter: TLV
> 
>     This field contains an IPv4 or IPv6 address parameter, as described
>     in Section 3.3.2.1 of [RFC4960].
> 
> ASCONF chunk with Error Cause Indication Parameter (Unresolvable Address)
> should be sent if the Delete IP Address is not part of the association.
> 
>   Endpoint A                           Endpoint B
>   (ESTABLISHED)                        (ESTABLISHED)
> 
>   ASCONF        ----------------->
>   (Delete IP Address)
>                 <-----------------      ASCONF-ACK
>                                         (Unresolvable Address)
> 
> Signed-off-by: Xin Long <lucien.xin@...il.com>

Applied.
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