Hi Shahram,

We can add text to explain the mechanism in the next version.

Another example is using ACL to match the PD packet and hardware support it.

Regards,
Dapeng Liu

2015-11-04 9:58 GMT+08:00 Shahram Davari <[email protected]>:

> The only text I can see is the following:
>
>
>
> “Each network device receives the Path Tracking packet from its
>
>    upstream device, makes a copy of it and passes the copy to its CPU.
>
> “
>
>
>
> I don’t see any mechanism being proposed in the draft.
>
>
>
> Thx
> SD
>
>
>
> *From:* Dacheng Zhang [mailto:[email protected]]
> *Sent:* Tuesday, November 03, 2015 5:53 PM
> *To:* Shahram Davari; [email protected]
> *Subject:* Re: [nvo3] draft-­-pang-­-nvo3-­-vxlan-­-path-­-detection-­-01
>
>
>
> This draft actually proposes a mechanism where the intermediates are
> required to recognize the vxlan oam packets. If this assumption is broken,
> the solutions proposed in this draft may not be effective.
>
>
>
> Cheers
>
>
>
> Dacheng
>
>
>
> *发件人**: *nvo3 <[email protected]> on behalf of Shahram Davari <
> [email protected]>
> *日期**: *2015年11月4日 星期三 上午9:33
> *至**: *"[email protected]" <[email protected]>
> *主题**: *[nvo3] draft-­‐pang-­‐nvo3-­‐vxlan-­‐path-­‐detection-­‐01
>
>
>
> Hi,
>
>
>
> This draft needs to address how intermediate L3 routers are going to see
> these VXLAN OAM packets, since L3 routers just do L3 routing and don’t look
> at the payload to see it is VXLAN and then see that these are PD OAM
> packets. The only option I can think of is TTL expiry, otherwise it won’t
> work, the way it is defined now,
>
>
>
> Thx
>
> Shahram
>
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>
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>


-- 

------
Best Regards,
Dapeng Liu
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