Re: Usage of IPv6 flow label

[Steve Deering]

At 1:56 PM -0500 11/16/00, Alex Conta wrote:
>If flow IDs are used for fast forwarding, without the ability to rewrite
>them, it seems to me  that a router will not be able to aggregate flows. 

Alex,

That is incorrect.  A router can aggregate flows by encapsulation
(similar to, but more powerful than, label stacks), and therefore
not need to rewrite flow IDs.

A system that rewrites flow IDs to do aggregation is unable to
efficiently *de*aggregate at the other end of the aggregating path.

Steve

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