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[Pce] Proposal for signaling ECMP or UCMP paths

"Mike Koldychev (mkoldych)" <mkoldych@cisco.com> Fri, 12 July 2019 21:02 UTC

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From: "Mike Koldychev (mkoldych)" <mkoldych@cisco.com>
To: "pce@ietf.org" <pce@ietf.org>
Thread-Topic: Proposal for signaling ECMP or UCMP paths
Thread-Index: AdU49K/vyO4W8EA5RLe2JmFfCByyTQ==
Date: Fri, 12 Jul 2019 21:02:15 +0000
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Subject: [Pce] Proposal for signaling ECMP or UCMP paths
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Hi WG,

As per SPRING WG, SR Policy may contain multiple Candidate Paths and each Candidate Path may contain multiple Segment Lists. Existing SR standards in PCEP allow only a single ERO (one Segment List) for the SR Path in a stateful PCEP message. There is a need to signal multiple Segment Lists in PCEP for this as well as other load balancing use cases. 

See the link that describes this, as well as list possible ways to achieve this. Please provide your feedback on the list or during the WG session.

https://github.com/dhruvdhody-huawei/105/blob/master/multiple_ERO_jl03a.pdf

Thanks,
Mike.

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