Hi Robert, On Jul 24, 2014, at 03:21 , Robert Raszuk <rob...@raszuk.net<mailto:rob...@raszuk.net>> wrote:
Therefor an alternative of using any form of entropy labels in data plane all together would be to allocate a SID blocks (say 64 or 128 wide) and allow SPRING header imposition to use such pools of SIDs per group of flows to effectively allow for efficient load balancing in the network. We’re rehashing (pun unintended) the entropy label discussion. Before we settled on entropy labels the way we did, we discussed advertising label blocks in LDP. There are two problems: a) as Stephane mentions, ELs are stateless, but pools of SIDs impose more state in the forwarding plane (and to some extent, in the control plane). b) if you use small blocks, you get uneven load balancing; if you use large blocks, you blow up the state more. Kireeti
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