The measurement registers of a system total report can store a maximum count of 4294967295 (size of the register), after which the register will roll over to 0. This limitation puts constraint on the number of the following cards that can run at the maximum card TPS in the system, or on the value of maximum TPS that can be processed by the maximum number of those cards allowed in the system:
- ENUM
- Up to 12 ENUM cards can run at the maximum advertised TPS (4000) in the system without exceeding the count capacity.
- The maximum allowed 16 ENUM cards can run at a maximum of 3100 TPS in the system without exceeding the count capacity.
- The maximum allowed 16 ENUM cards running at maximum card TPS of 4000 can run for 18 hours before the count capacity is exceeded.
- SIP
- Up to 12 SIP cards can run at the maximum advertised TPS (4000) in the system without exceeding the count capacity.
- The maximum allowed 16 SIP cards can run at a maximum of 3100 TPS in the system without exceeding the count capacity.
- The maximum allowed 16 SIP cards running at maximum card TPS of 4000 can run for 18 hours before the count capacity is exceeded.
- S13
- Up to six S13 cards can run at the maximum advertised TPS (8000) in the system without exceeding the count capacity.
- The maximum allowed 16 S13 cards can run at a maximum of 3100 TPS in the system without exceeding the count capacity.
- The maximum allowed 16 S13 cards running at maximum card TPS of 8000 can run for nine hours before the count capacity is exceeded.
These limitations do not affect the processing of traffic. If the limitations are exceeded, then the value of the measurements register will roll over after reaching its maximum value and the pegging will be incorrect.