1. ENUM User Guide
  2. ENUM Queries Handling
  3. Flow Control for ENUM queries

3.7 Flow Control for ENUM queries

An ENUM application can process up to the set Max vENUM TPS limit, above which the MP performs the following actions:
  • Discards the messages.
  • Notifies the client with ENUM error response if the ENUMOPTS option CNGNTFY is TRUE.
  • Raises an event according to the ENUM error response code configured in ENUMOPTS table option CNGRCODE. The allowed values for CNGRCODE option are 5 to 15. The default value of the CNGRCODE is 5 (ENUM_QRY_REFUSED).
  • ENUM error response message due to congestion is paced at a rate of 1 error message per 100 discarded ENUM messages at the application level.
  • Pegs the measurements for total discarded ENUM messages and messages discarded due to congestion at the application level.