The MPLS WG Archive

[Don Fedyk <dwfedyk@nortelnetworks.com>]

George to be fair I heard Dave say  that the load balancing should not 
use certain fields which are part of the label stack. This does not 
require that balancing be done in a prescribed manner, freedom is still 
there. Instead load balancing should be correct with respect to all of 
MPLS formats  including reserved labels.

Don

George Swallow wrote:

>>If you look at my post from rather late last night, I'd question the lighter
>>overhead assertion. This discussion is really orthogonal to the probe
>>frequency and is more concerned with the probe quantity/quality to determine
>>there is a problem. Goodness and scalability (and again my favorite "bounded
>>detection time") can be expressed as how authoritative a test result is in
>>proportion to the messages expended. Also the fewer heuristics required to
>>interpret the test results, the more reliable the overall system is.... 
>>    
>>
>
>My only point is that if your measurement is based on the assumption
>that all load-balancing is being done in a prescribed manner, then the
>quality of that measurement is very much dependent on the certainty
>that all of the nodes in the path are actually behaving according to
>that assumption.  On node behaving differently could reroute a large
>portion (or all) of the probes.  Thus the measurement could be far
>from the actual behavior.  
>
>...George
>
>==================================================================
>George Swallow       Cisco Systems                  (978) 497-8143
>                     250 Apollo Drive
>                     Chelmsford, Ma 01824
>
>
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