You can set the ToS bits in the packet to mark it. Though if you go through a router these values most likely won't be retained.
Aaron On Fri, Nov 2, 2012 at 5:36 PM, Abhishek Chanda <[email protected]>wrote: > Hi all, > > Is there a way to insert custom metadata in a packet (other than the match > tuple) that can then be extracted in a switch? Specifically, I am looking > for something like Click's Paint element that allows marking packets with a > 'color'. Later, another network element can look at the color and use it to > decide forwarding behavior. > > Initially, I was thinking of using VLAN tags for this. But then, those > tags can collide with tags used in the underlying network and can create > confusion. > > http://www.read.cs.ucla.edu/click/elements/paint > > Thanks > > _______________________________________________ > openflow-discuss mailing list > [email protected] > https://mailman.stanford.edu/mailman/listinfo/openflow-discuss > >
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