公开(公告)号：US20220337520A1

公开(公告)日：2022-10-20

申请号：US17343655

申请日：2021-06-09

申请人： MICROSOFT TECHNOLOGY LICENSING, LLC

发明人： Steven BALLS ,  Matthew Ian Ronald WILLIAMS ,  Abhishek PANDEY ,  Daniel Thomas O'BRIEN

IPC分类号： H04L12/745

摘要： A method performed by a packet processor comprises retrieving a first prefix length for a first lookup stage and a shorter second prefix length for a second lookup stage. The packet processor can receive instructions to program an action entry. The length of the action entry prefix is compared to the first prefix and second prefix length. If it is determined that the length of the action entry prefix is shorter than the second prefix length, the second prefix length is selected as an expanded prefix length. If it is determined that the length of the action entry prefix is longer than the second prefix length and shorter than the first prefix length, then the first prefix length is selected as the expanded prefix length. Expanded action entries are generated with expanded prefixes of the expanded prefix length and stored at the lookup stage associated with the expanded prefix length.