Minimum CIR for Active Directory

[corydch]

Currently we are running Active Directory in a hub and spoke
environment with all of our remote sites connecting to our corporate
office via frame relay. The CIR is 0K and the EIR is 512K. We have been
having replication, authentication and other strange issues at our
remote sites in AD since we implemented. Yesterday a Microsoft told us
the 0K CIR could be a big reason why but really did not get into
specifics as to why. Does anyone know of a good place to find the
explanation on how this could affect AD? I am just looking to find the
justification so I can get the additional expense approved to increase
the CIR. Any thoughts would be appreciated. Thanks.

 

[Enkidu]

Currently we are running Active Directory in a hub and spoke
environment with all of our remote sites connecting to our corporate
office via frame relay. The CIR is 0K and the EIR is 512K. We have been
having replication, authentication and other strange issues at our
remote sites in AD since we implemented. Yesterday a Microsoft told us
the 0K CIR could be a big reason why but really did not get into
specifics as to why. Does anyone know of a good place to find the
explanation on how this could affect AD? I am just looking to find the
justification so I can get the additional expense approved to increase
the CIR. Any thoughts would be appreciated. Thanks.

0K CIR means that you guaranteed nothing! Should some co-user of the
bandwidth burst over their CIR up to the total bandwidth you effectively
have NO bandwidth. For the whole pipe the CIRs add up to the bandwidth
of the pipe (in theory, though it might be oversold). If everyone on the
pipe is *only* using their CIR, then again, you don't have any bandwidth.

If you have a 64k CIR, you can at least be sure that some of your
traffic gets through, even if all the others on that pipe are also using
their CIR (assuming the total bandwidth has not been oversold - but that
shouldn't happen)

Cheers,

Cliff