Take it like this
There are three types of flow mask.
1) destination-IP (least specific)
2) source-destination-ip
3) ip-flow (most specific)
for example, destination-ip is in effect on RP-ONE connected to
MLS-SE-MAIN, RP-TWO is later connected to MLS-SE-MAIN. RP-TWO has the
source-destination-ip flow mask set. In this case MLS-SE-MAIN will
switch the flow-mask to source-destination-ip flow mask.
In other words if an MLS-SE is connected to two Route Processors and
they have different flow masks enabled. The most restrictive flow mask
will be used on MLS-SE.
My guess is there is an errata in the course notes. Which book is this?
Also, check out the following
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat5000/rel_4_1/netflow/02pspg.htm#xtocid58735
[EMAIL PROTECTED] wrote:
>
> Ok, page 7-34 (MLS Flow Masks) of my course notes states
> that "if the MLS-SE detects different flow masks from
> different MLS-RPs for which the MLS-SE is performing
> Layer 3 Switching, the MLS-SE changes its flow mask to
> the most specific flow mask detected. However, if a
> more specific flowmask is in effect, then a less
> specific flow mask is applied."
>
> So, is this saying that:
> 1. RP1 has mask A and it is applied to the SE.
> 2. The mask on RP1 resulting in a less specific mask
> B.
> 3. The MLS-SE responds by applying B, the less specific
> mask.
>
> Can someone interepret this for me? Would it then be
> the case that if RP2 had a more specific mask C than B
> but less specific then A, the mask that would be applied
> is C?
>
> TIA...
>
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--
----------------
Shabbir S. Talib
MCSE, CNE, CCNA
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