Markport Limited

Jim Plimmer

Klaas Wijbrans

Simon Dumbleton

Klass Wijbrans

Ian Birchall

A message flooding prevention system () has multiple interceptors (), each with an interceptor unit linked with an RCS server, and SMSC, or an MMSC. The interceptors () are connected to flood detect nodes () for receiving messages at a point in a communications network, extracting data from a message, generating at least one code from extracted data, and comparing the code or codes with one or more previous codes. The flood detect nodes () determine according to the comparison if the received message is suspected to be a flooding message and if so, performs code generation including hashing. The flood detect nodes () save the code to one of a set of database buckets (), each bucket being associated with a code, and select a bucket according to the generated code, and increment a fill parameter of the selected bucket.

Message flooding prevention in messaging networks

An originating SMSC in Network A issues an SRI-SM towards the HLR of a recipient (User B in Network B). One of a number of N Platforms or Message Controllers ('MCOs') intercepts the SRI-SM. Instead of passing on the SRI-SM, the MCO terminates it and performs a full decode of all fields, specifically extracting the recipient MSISDN from it. The MCO then constructs a new SRI-SM for the same MSISDN, but forcing the new request to ask for all available data, including, but not necessarily limited to visited-MSC address, SGSN address and IP-SM-GW address. When a response is received the MCO generates a fresh query response for the originating SMSC instead of merely routing on the response which it receives. If the MCO is programmed to provide a false address for smart services it incorporates the false address in the query response which it generates.

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Sherfield English, United Kingdom

Jim Plimmer