[PWE3] ELI as a reserved label
Curtis Villamizar <curtis@occnc.com> Fri, 30 July 2010 09:05 UTC
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From: Curtis Villamizar <curtis@occnc.com>
Date: Fri, 30 Jul 2010 05:06:06 -0400
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Subject: [PWE3] ELI as a reserved label
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The Entropy Label Indicator (ELI) is called for in draft-kompella-mpls-entropy-label-01.txt After brief discussion with Stewart and with Kireeti and Lucy Yong, there were three uses of ELI that would benefit from making the ELI a reserved label. It may be premature to make any such request and the remaining reserved label number space is sparse, so this will be floated as a separate draft, and put on hold awaiting advancement of the drafts that depend on it. The three benefits of making ELI a reserved label are in: 1. Extending any use of entropy-label to P2MP (where there are multiple egress and the possibility of each egress requiring a separate entropy label value is problematic for the ingress). 2. Extending any use of entropy-label to any arbitrary position in the label stack such that in an aggregation LSP with aggregates both MPLS-TP and MPLS LSP, load split on the MPLS LSPs is simplified and not impacted by limiting label stack depth for the MPLS-TP LSPs. This is when label stack hash is limited to support MPLS-TP as proposed in draft-villamizar-mpls-tp-multipath-00.txt . 3. Providing a means to carry indication of large flow as described in draft-yong-pwe3-enhance-ecmp-lfat-01.txt and draft-yong-pwe3-lfc-fat-pw-01.txt without changing the use of TC in a forwarding LSP label. This would reuse one reserved label for three purposes. This email is to gauge the reaction to this proposal (preferably among those familiar with these drafts) before taking the time to write a new draft proposing that a reserved label be allocated. Curtis
- Re: [PWE3] [mpls] ELI as a reserved label Kireeti Kompella
- [PWE3] ELI as a reserved label Curtis Villamizar
- Re: [PWE3] [mpls] ELI as a reserved label Shane Amante
- Re: [PWE3] [mpls] ELI as a reserved label Curtis Villamizar
- Re: [PWE3] [mpls] ELI as a reserved label Shane Amante
- Re: [PWE3] [mpls] ELI as a reserved label Shane Amante
- Re: [PWE3] [mpls] ELI as a reserved label Curtis Villamizar
- Re: [PWE3] [mpls] ELI as a reserved label Curtis Villamizar
- Re: [PWE3] [mpls] ELI as a reserved label Greg Mirsky
- Re: [PWE3] [mpls] ELI as a reserved label John E Drake
- Re: [PWE3] [mpls] ELI as a reserved label Curtis Villamizar
- Re: [PWE3] [mpls] ELI as a reserved label Curtis Villamizar
- Re: [PWE3] [mpls] ELI as a reserved label John E Drake
- Re: [PWE3] [mpls] ELI as a reserved label Curtis Villamizar
- Re: [PWE3] [mpls] ELI as a reserved label John E Drake
- Re: [PWE3] [mpls] ELI as a reserved label Curtis Villamizar
- Re: [PWE3] [mpls] ELI as a reserved label Yong Lucy
- Re: [PWE3] [mpls] ELI as a reserved label David Allan I
- Re: [PWE3] [mpls] ELI as a reserved label John E Drake
- [PWE3] ELI and EL in P2MP (Re: [mpls] ELI as a re… Curtis Villamizar
- Re: [PWE3] [mpls] ELI as a reserved label Curtis Villamizar
- Re: [PWE3] ELI and EL in P2MP (Re: [mpls] ELI as … Curtis Villamizar
- Re: [PWE3] ELI and EL in P2MP (Re: [mpls] ELI as … David Allan I
- Re: [PWE3] [mpls] ELI as a reserved label Kireeti Kompella
- Re: [PWE3] [mpls] ELI as a reserved label Curtis Villamizar
- Re: [PWE3] [mpls] ELI as a reserved label Yong Lucy
- Re: [PWE3] [mpls] ELI as a reserved label John E Drake
- Re: [PWE3] [mpls] ELI as a reserved label John E Drake
- Re: [PWE3] [mpls] ELI as a reserved label Yong Lucy