| US 7,489,643 B2 | ||
| Increased availability on routers through detection of data path failures and subsequent recovery | ||
| Amit Kumar Aggarwal, San Jose, Calif. (US); Shrinath Honnavalli, Fremont, Calif. (US); Ashok Kumar, San Jose, Calif. (US); Venkatesh Dattathri, Santa Clara, Calif. (US); Sahil Chander Bhardwaj, Haryana, Ind. (US); Sumeet Knmar Arora, San Jose, Calif. (US); and Nimish Bhatt, Sunnyvale, Calif. (US) | ||
| Assigned to Cisco Technology, Inc., San Jose, Calif. (US) | ||
| Filed on Sep. 14, 2004, as Appl. No. 10/941,521. | ||
| Prior Publication US 2006/0056303 A1, Mar. 16, 2006 | ||
| Int. Cl. H04L 1/22 (2006.01); H04J 3/14 (2006.01); G06F 11/00 (2006.01); G08C 25/02 (2006.01) | ||
| U.S. Cl. 370—248 [370/217; 370/242; 370/249] | 39 Claims |
| 1. A method of monitoring a network device, said method comprising:
enabling a data path within said network device, said data path comprising a plurality of elements on a linecard in said network
device and an interface in said network device, wherein data packets are moved on said data path using said plurality of elements
and communicated to and from the linecard via said interface; and
executing a process within said network device for detecting a defective element in said plurality of elements, wherein said
process is executed within said data path allowing a defect in said data path to be detected, localized and recovered from.
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