Re: [Lsr] Flex Algo merge work, IS-IS and OSPF FAD sub-TLVs

"Acee Lindem (acee)" <acee@cisco.com> Mon, 21 May 2018 15:11 UTC

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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "Peter Psenak (ppsenak)" <ppsenak@cisco.com>, Christian Hopps <chopps@chopps.org>, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
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Thread-Topic: [Lsr] Flex Algo merge work, IS-IS and OSPF FAD sub-TLVs
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Date: Mon, 21 May 2018 15:11:00 +0000
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Subject: Re: [Lsr] Flex Algo merge work, IS-IS and OSPF FAD sub-TLVs
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Hi Peter, Chris, 

In this particular case, it may be ok as long as we just limit the code point space to the 1 octet type (i.e., 0-255 with reserved values). However, for all the reasons Peter and Les have already articulated, there will be cases where the TLV or Sub-TLV registries cannot be common. So, I have to ask myself just what are we gaining by here? The encodings are not going to be identical (for all the previously mentioned reasons) and this leaves the door open for time wasted on revisiting this issue... 

Thanks,
Acee

On 5/20/18, 9:21 AM, "Peter Psenak (ppsenak)" <ppsenak@cisco.com> wrote:

    Chris,
    
    On 20/05/18 01:47 , Christian Hopps wrote:
    > How about an option 2c
    >
    >    2c: Leave the encodings the way they are, and use a common registry to define the type/value semantics.
    
    having a combined registry that defines FAD Sub-TLVs types is fine with me.
    
    thanks,
    Peter