1. Feature Guide
  2. DSR Features and Functions
  3. Routing and Transaction Related Parameters in the DSR
  4. Congestion Control
  5. Remote Transport Congestion Control

2.6.15.9 Remote Transport Congestion Control

Egress transport congestion control occurs when a DSR diameter peer connection’s TCP/SCTP send buffer is exhausted, as indicated by the TCP/SCTP socket becoming ‘blocked’.

When this occurs the DSR sets the connection’s priority level to CPL-4. This means that no requests or answers can be sent on the connection. A user configurable abatement timer is used to control the period a connection stays in the CPL mode. The receive or transmit buffer sizes are user-configurable for the system.