One more query guys 😊

draft-bashandy-isis-srv6-extensions-05.txt says:
Section 3. Advertising Supported Algorithms
SRv6 capable router indicates supported algorithm(s) by advertising  the SR 
Algorithm sub TLV as defined in [I-D.ietf-isis-segment-routing-extensions].

https://tools.ietf.org/pdf/draft-ietf-isis-segment-routing-extensions-22.pdf:
"The SR-Algorithm sub-TLV is optional, it MAY only appear a single   time 
inside the Router Capability TLV"


So we have only one SR-algorithm sub-TLV for SRV6 as well as for SR ?
If we specify an algorithm in SR-Algorithm sub-TLV, it means that algorithm is 
supported for both SR as well as for SRV6 ?
Selectively we cannot specify supported algorithm for SR,SRV6.



Juniper Internal

-----Original Message-----
From: Peter Psenak <[email protected]> 
Sent: Sunday, March 24, 2019 2:43 PM
To: Rajesh M <[email protected]>; [email protected]; 
[email protected]; [email protected]; [email protected]
Cc: Ron Bonica <[email protected]>; SPRING WG <[email protected]>; [email protected]
Subject: Re: draft-bashandy-isis-srv6-extensions-05.txt

On 24/03/2019 05:50 , Rajesh M wrote:
> Thanks peter for response.one query
>
> As per draft
> "Each locator is a covering prefix for all SIDs provisioned on that node 
> which have the matching topology/algorithm"
>
> So this means one locator per Topology/Algorithm ?

Locator is scoped per algo and topology. You can have multiple Locators for the 
same algo/topo pair.

thanks,
Peter

>
>
> My opinion is we should have multiple locator per topology/algorithm 
> (One Main locator and rest N Anycast locator based upon requirements. N can 
> be zero,1,2...etc) Any cast flag should be set on Anycast locator. Main 
> locator should be used as Node SID (I mean SIDS under Main locator).
>
> Thanks
> Rajesh
>
>
>
>
>
>
>
> -----Original Message-----
> From: Peter Psenak <[email protected]>
> Sent: Wednesday, March 13, 2019 6:13 PM
> To: Rajesh M <[email protected]>; [email protected]; 
> [email protected]; [email protected]; 
> [email protected]
> Cc: Ron Bonica <[email protected]>; SPRING WG <[email protected]>; 
> [email protected]
> Subject: Re: draft-bashandy-isis-srv6-extensions-05.txt
>
> Hi Rajesh,
>
>
> On 13/03/2019 07:02 , Rajesh M wrote:
>> 1)
>>
>> SRv6 Endpoint Function: 2 octets. As defined in 
>> [I-D.filsfils-spring-srv6-network-programming]
>>
>> Legal function values for this sub-TLV are defined in Section 7.
>>
>>
>>
>> This should be Section 8 I think, section 8 contains Advertising 
>> Endpoint Behaviors.
>>
>> Al reference to section 7 , we must change to section 8 (4 places)
>>
>
> fair enough, will fix that in the next version.
>
>>
>>
>> 2)
>>
>>
>>
>> SRv6 Endpoint Function already mentions Endpoint Function Types.
>>
>>
>>
>> SIDusually will be a combination of Locator:Function:ARGS.
>>
>>
>>
>> Since SID already contains Function, why there is a need for 
>> additional
>> SRv6 Endpoint Function field ? Am I missing something.
>
>
> SRv6 Endpoint Function represents the behavior, which comes from
> "SRv6 Endpoint Behaviors Registry". That value is not present in the 128 bits 
> SID value, which is locally assigned by the advertising node.
>
> thanks,
> Peter
>
>
>
>
>
>>
>>
>>
>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>
>> | Flags | SRv6 Endpoint Function |
>>
>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>
>> | SID (128 bits) . . . |
>>
>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>
>> | SID (cont . . .) |
>>
>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>
>> | SID (cont . . .) |
>>
>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>
>> | SID (cont . . .) |
>>
>> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>>
>>
>>
>
> .
>
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