System and method for maintaining a layer 2 modification buffer

Details System and method for maintaining a layer 2 modification buffer System and method for maintaining a layer 2 modification buffer

2011-07-26

2011-07-26

Sheikh, Ayaz R (Department: 2476)

Multiplex communications

Fault recovery

C709S221000, C707S625000, C714S016000

Reexamination Certificate

active

07986616

ABSTRACT:
A network device for processing packets. The network devices includes a ingress module for performing lookups for layer 2 switching and performing operations for maintaining a layer 2 table. When the ingress module updates the layer 2 table, the ingress module records the operation performed on the layer 2 table in a modification buffer. Entries are added to the modification buffer when the layer 2 table is modified and in the order in which the layer 2 table was modified. The network device thus enables reconstruction of the layer 2 table by performing the operations in the modification buffer.

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