发明授权
US06654372B1 Algorithm to bypass L4 processing in an internet protocol forwarding processor
失效
在互联网协议转发处理器中绕过L4处理的算法
- 专利标题: Algorithm to bypass L4 processing in an internet protocol forwarding processor
- 专利标题(中): 在互联网协议转发处理器中绕过L4处理的算法
-
申请号: US09543144申请日: 2000-04-05
-
公开(公告)号: US06654372B1公开(公告)日: 2003-11-25
- 发明人: Francis Arts , Olivier Didier Duroyon , Anthony Matteo Gallo , Brahmanand Kumar Gorti , Donald Newland Jones , Natarajan Vaidhyanathan , Colin Beaton Verrilli
- 申请人: Francis Arts , Olivier Didier Duroyon , Anthony Matteo Gallo , Brahmanand Kumar Gorti , Donald Newland Jones , Natarajan Vaidhyanathan , Colin Beaton Verrilli
- 主分类号: H04L1256
- IPC分类号: H04L1256
摘要:
A controllable mechanism for by-passing Layer 4 (L4) classification is based on the insertion into a set of MAC rules in SA MAC lookup means a set of Layer 4 (L4) Skip Classification Flags. Routing is accomplished by selecting which rule to apply to the packet and reading the state of the corresponding L4 Skip Classification Flag. In response to a first state of said corresponding L4 Skip Classification Flag, performing an L4 classification followed by a routing of the data packet. In response to a second state of said corresponding L4 Skip Classification Flag, reading the state of a Global Classification Flag. In response to a first state of said Global Classification Flag, performing an L4 classification followed by a routing of said data packet. In response to a second state of said Global Classification Flag performing a routing of the data packet. The L4 Skip option change does not use the option change of reading the L4 Skip Classification Flag from the port table, whereas the second embodiment uses this option. The third and fourth embodiments are similar to the first and second embodiments but with the. addition of inserting into a set of Layer 3 (L3) rules in L3 lookup means a set of Layer 4 (L4) Classification Required Flags. The third embodiment does not use the option of reading the L4 Skip Classification Flag from the port table, whereas the fourth embodiment uses this option.