Re: [LARTC] Hash without hashmask

[Mihai RUSU <dizzy@roedu.net>]

On Thu, 7 Mar 2002, bert hubert wrote:

> I really have no clue. At one point I understood hashing filters but since
> then it appears I've swapped them out again.
>
> Also, it looks like almost nobody is a real hash expert, with the exception
> of Alexey, who wrote the stuff.
>

Hi

Every test I made didnt worked. For now I'll just say that the link
parameter for a u32 classifier can only point to devisor hash table
handles (created with tc filter protocol ip handle <id> u32 devisor <X>).

If you want to includ also a more general example you can use my setup. I
made a test setup where I used 2 hashes in a tree configuration. This I
think can be interesting for other people too, who by just reading the FAQ
cant tell for sure if its possible to make a hash and to be able to add
filters in the hash that they are hashes to... :)

We (my employer) will use this hashes in a production enviroment and this
will make a perfect test for the hashes. If I encounter other howto
related problems Ill post here.

Also I dont find anything in the HOWTO about the "offset" and "shift"
parameters for u32 classifiers. Do you know what they do ?

----------------------------
Mihai RUSU

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