发明名称 |
Packet scheduling with guaranteed minimum rate in a traffic manager of a network processor |
摘要 |
Described embodiments provide rate setting for nodes of a scheduling hierarchy of a network processor. The scheduling hierarchy is a tree structure having a root scheduler and N scheduler levels. The network processor generates tasks corresponding to received packets. A traffic manager queues received tasks in a queue of the scheduling hierarchy associated with a data flow of the task. The queue has a parent scheduler at each level of the hierarchy up to the root scheduler. A scheduler selects a child node for transmission based on a number of arbitration credits in an arbitration credit bucket of each child. An arbitration credit value is determined for each child by maintaining a time stamp value corresponding to a time value of a previous selection of the child node and determining an elapsed time value based on the time stamp value and a current time value, scaled by a scaling factor. |
申请公布号 |
US8615013(B2) |
申请公布日期 |
2013.12.24 |
申请号 |
US201113250883 |
申请日期 |
2011.09.30 |
申请人 |
SONNIER DAVID;SUNDARARAMAN BALAKRISHNAN;AGERE SYSTEMS LLC |
发明人 |
SONNIER DAVID;SUNDARARAMAN BALAKRISHNAN |
分类号 |
H04L12/28 |
主分类号 |
H04L12/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|