Re: [vpp-dev] Question about IP reassembly in 17.10 release

[Yu, Michael A. (NSB - CN/Qingdao)]

Hi Marion,

Thanks for this info, it’s clear for me now.

Best Regards
Michael

From: Damjan Marion [mailto:dmarion.li...@gmail.com]
Sent: 2017年11月1日 17:41
To: Yu, Michael A. (NSB - CN/Qingdao) 
Cc: vpp-dev 
Subject: Re: [vpp-dev] Question about IP reassembly in 17.10 release




On 30 Oct 2017, at 08:21, Yu, Michael A. (NSB - CN/Qingdao) 
mailto:michael.a...@nokia-sbell.com>> wrote:

Hi,

From https://docs.fd.io/vpp/17.10/release_notes_1710.html, I found that “IP 
reassembly” is claimed to support in 17.10 release.
But after checked the latest 17.10 code, I can’t find any new code change 
related to this part, and the fragmented packets are still treated as 
“experimental” in function “ip4_local_inline” (ip4_forward.c)

   /* Treat IP frag packets as "experimental" protocol for now
  until support of IP frag reassembly is implemented */
   proto0 = ip4_is_fragment (ip0) ? 0xfe : ip0->protocol;
   proto1 = ip4_is_fragment (ip1) ? 0xfe : ip1->protocol;

I am confused on it and could anyone help clarify if “IP reassembly” is 
supported now? Thanks!

No, IP Reassembly will likely be in the next release.


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Re: [vpp-dev] Question about IP reassembly in 17.10 release

[Damjan Marion]

> On 30 Oct 2017, at 08:21, Yu, Michael A. (NSB - CN/Qingdao) 
>  wrote:
> 
> Hi,
>  
> From https://docs.fd.io/vpp/17.10/release_notes_1710.html 
> , I found that “IP 
> reassembly” is claimed to support in 17.10 release.
> But after checked the latest 17.10 code, I can’t find any new code change 
> related to this part, and the fragmented packets are still treated as 
> “experimental” in function “ip4_local_inline” (ip4_forward.c)
>  
>/* Treat IP frag packets as "experimental" protocol for now
>   until support of IP frag reassembly is implemented */
>proto0 = ip4_is_fragment (ip0) ? 0xfe : ip0->protocol;
>proto1 = ip4_is_fragment (ip1) ? 0xfe : ip1->protocol;
>  
> I am confused on it and could anyone help clarify if “IP reassembly” is 
> supported now? Thanks!

No, IP Reassembly will likely be in the next release.


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