Sequential access using 'for'

[Vern Paxson]

> I need to traverse the table sequentially (upwards and downwards). 
> However it seems that the 'for' command does not do that.

Right, it doesn't.  (It's also not clear what "sequentially" means for
some types of table indexes, for example address/port pairs.)

What particular problem are you trying to solve?  I ask because that'll
help me think about what sort of mechanism to add to support it.

		Vern