Denial of Service Protection (Oracle Communications Session Border Controller Configuration Guide, Release 9.2.0)

Publisher

Oracle

URL

https://docs.oracle.com/en/industries/communications/session-border-controller/9.2.0/configuration/denial-service-protection.html

Published

unknown

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Oracle documentation license; copyrighted; no-redistribution; short excerpts and locators only

Source notes citing this source

• The Oracle SBC demotes an endpoint to denied when it exceeds configured SIP transaction rate, call rate or invalid-signaling thresholds, and lets it back when the deny-period expires. in context
• On hardware Oracle SBCs, packets from denied sources are dropped by the network processor before they reach the host CPU. in context
• To limit collateral damage behind NAT, the Oracle SBC can deny a single source IP and port rather than the whole IP, and blocks the whole NAT address only after a configured number of devices behind it are demoted. in context
• The Oracle SBC promotes an untrusted endpoint to trusted after a successful SIP registration or a successfully established call. in context
• For high-trust realms or session agents, the Oracle SBC dos-action-at-session feature detects per-session floods from trusted endpoints and can demote the source or tear down the offending session. in context
• The Oracle Communications SBC sorts signaling traffic into trusted, untrusted and denied paths, and polices each trusted device flow in its own queue. in context
• The Oracle SBC raises apDosThresholdCrossTrap and apDosThresholdClearTrap SNMP traps when traffic crosses or falls below minor, major or critical DoS thresholds, and show dos threshold counters displays the current level. in context
• Oracle SBC untrusted traffic shares 2048 fairly scheduled queues, so a flooding device affects only its share of the untrusted population. in context

Cite this source record

APA

WarmTransfer. (2026, September 25). Denial of Service Protection (Oracle Communications Session Border Controller Configuration Guide, Release 9.2.0). WarmTransfer. https://warmtransfer.net/knowledge/sources/oracle-sbc-920-denial-service-protection

BibTeX

@misc{warmtransfer-oracle-sbc-920-denial-service-protection,
  title  = {Denial of Service Protection (Oracle Communications Session Border Controller Configuration Guide, Release 9.2.0)},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/oracle-sbc-920-denial-service-protection},
  note   = {Oracle, accessed 2026-09-25}
}