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Following are the additional restrictions for Communication Manager:
Using the PIN-EKE Security Profile can reduce the capacity of the Communication Manager platform by 15%.
Using the H323TLS Security Profile can reduce the Communication Manager platform capacity by 50%. Communication Manager limits the number of H323TLS registration based on its size.
160 DMCC station registrations for a Small Communication Manager platform (S83xx or S84xx)
1000 DMCC station registrations for a Medium Communication Manager platform
2000 DMCC station registrations for a Large Communication Manager platform
When Secure Mode with FIPS option is enabled, the H323TLS Security Profile is used by default. The actual number of H323TLS connections for an AE Services server across multiple Communication Managers may be limited by the capacity of each individual Communication Manager. If a mix of FIPS enabled Communication Manager and non FIPS Communication Manager are used, you can calculate the number of registrations DMCC can support by considering that a H323TLS signaling channel consumes double the resources as that of a non-H323TLS DMCC registration.
Supported Communication Manager versions for FIPS and the H323TLS Security Profile.
The H323TLS Security Profile when used with Processor Ethernet is supported with the Communication Manager FIPS template for Communication Manager 6.3.6 and later.
The H323TLS Security Profile when used with CLAN is supported with the Communication Manager FIPS template for Communication Manager 6.3.7 and later.