| US 7,499,395 B2 | ||
| BFD rate-limiting and automatic session activation | ||
| Reshad Rahman, Ottawa (Canada); David Toscano, Ottawa (Canada); David Ward, Somerset, Wis. (US); Jean-Marc Simard, Gatineau (Canada); and Christian E. Hopps, San Francisco, Calif. (US) | ||
| Assigned to Cisco Technology, Inc., San Jose, Calif. (US) | ||
| Filed on Mar. 18, 2005, as Appl. No. 11/83,471. | ||
| Prior Publication US 2006/0209685 A1, Sep. 21, 2006 | ||
| Int. Cl. H04L 12/26 (2006.01) | ||
| U.S. Cl. 370—229 [370/241; 709/227] | 12 Claims |
| 1. A processor-implemented method of operation for a node in a network, the method comprising:
tracking a total bidirectional forwarding detection (BFD) packet rate for a line card (LC) of the node;
rejecting operations associated with creation of a new BFD session that would cause the total BFD packet rate to exceed a
predetermined maximum rate, the new BFD session being stored in a state on the node; and
automatically retrying the operations of the new BFD session when doing so would not exceed the predetermined maximum rate.
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