Methods and apparatuses for adapting buffer capacity at routers
AssigneesAlcatel-Lucent USA Inc., Alcatel Lucent
InventorsMarina Thottan, Arun Vishwanath, Vijay Sivaraman, David Neilson
Life of this patent
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Abstract
In a method for dynamic buffer adjustment at a line card of router, a current buffer occupancy at the line card is compared with at least a first buffer occupancy threshold, the first buffer occupancy threshold being calculated based on a buffer occupancy threshold parameter and a capacity of at least a first buffer memory at the line card; and an active buffer capacity is adjusted by at least one of activating and deactivating buffer memory blocks at the line card based on the comparing step, the activating including switching on the buffer memory blocks, and the deactivating including causing the buffer memory blocks to enter a sleep state.
Claims21
A method for dynamic buffer adjustment at a line card of a router, the method comprising:
- comparing a current buffer occupancy at the line card with at least a first buffer occupancy threshold, the first buffer occupancy threshold being calculated based on a buffer occupancy threshold parameter and a capacity of at least a first buffer memory at the line card;
- and
- adjusting an active buffer capacity by at least one of activating and deactivating buffer memory blocks at the line card based on the comparing step, the activating including switching on the buffer memory blocks, and the deactivating including causing the buffer memory blocks to enter a sleep state.
A line card for a router, the line card comprising:
- at least a first buffer memory;
- and
- a line card processor configured to compare a current buffer occupancy at the line card with at least a first buffer occupancy threshold, the first buffer occupancy threshold being calculated based on a buffer occupancy threshold parameter and a capacity of the first buffer memory at the line card, the line card processor being further configured to adjust an active buffer capacity by at least one of activating and deactivating buffer memory blocks at the line card based on the comparison, the activating including switching on the buffer memory blocks, and the deactivating including causing the buffer memory blocks to enter a sleep state.
Dependencies are inferred from the claim text.