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[spring] draft-filsfils-spring-net-pgm-extension-srv6-usid-00

Parag Kaneriya <pkaneria@juniper.net> Fri, 26 July 2019 08:58 UTC

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From: Parag Kaneriya <pkaneria@juniper.net>
To: SPRING WG <spring@ietf.org>
Thread-Topic: draft-filsfils-spring-net-pgm-extension-srv6-usid-00
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Subject: [spring] draft-filsfils-spring-net-pgm-extension-srv6-usid-00
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Hello,

I have gone though this draft and below are my thought with respect to CRH comparison given in the draft


  1.  At ingress node has to more work by gathering individual micro sid . for example  Node A configured with micro sid  FC00::A000/32 Node B with FC00::B0000/32.

Now at ingress node has to concinnated these 2 micro sid into one  FC00::A000:B000: followed by of carrier  which is 0000 .



So this is more complex stuff introduced at ingress while programing path.



  1.  Even shifting of bit are hardware friendly ,  it is still more work then normal CRH processing  where additional CPU cycle to form new Destination by playing with bits and from new destination header.

Regards
Parag



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