[c-nsp] Hiding MPLS L3VPN hops from the CE

[David Freedman]

> So - *if* you do topology hiding, taking away network diagnosis 
> capabilities from those of your customers that know how to read "mtr"
> output - *then* make sure that your own network monitoring is really
> up to speed, and that you notice if links are overloaded, have packet
> loss, etc. etc.

This is exactly my point re selective TTL propagation, could hide hops
from customers but not the NMS / support staff.

Dave.

> 
> I don't really want to start a heated debate on whether topology hiding
> is good or bad - but it comes with some consequences :-)
> 
> gert
> 
> 
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-- 


David Freedman
Group Network Engineering
Claranet Group