ACL delivery method and network equipment
A technology of network equipment and inbound direction, applied in the field of communication, can solve problems such as limited maximum matching length, limited FP matching ability, and delivery failure
Active Publication Date: 2021-04-06
NEW H3C TECH CO LTD
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Problems solved by technology
However, the forwarding chip in the existing network equipment has limited FP matching ability, that is, the maximum matching length supported is limited. When the matching length of the ACL to be issued is too long, it will not be supported by the FP of the forwarding chip. , resulting in the delivery failure
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[0028] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the technical solutions in the present disclosure will be clearly and completely described below in conjunction with the drawings in the present disclosure. Apparently, the described embodiments are part of the implementation of the present disclosure. example, not all examples. The components of the present disclosure generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0029] Accordingly, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely represents selected embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within th...
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The disclosure provides an ACL delivery method and network equipment. The network equipment detects the type of the target ACL to be delivered to the target forwarding chip. If it is an inbound ACL, it judges whether the matching length of the target ACL exceeds the IFP support of the target forwarding chip. If so, at least one matching field is obtained from the target ACL as the first field group, and the matching action corresponding to the first field group is set to add the corresponding first preset identifier to form the first ACL ; The first ACL is sent to the VFP of the target forwarding chip; the original matching action in the target ACL is set to the matching action corresponding to the remaining matching fields in the first preset identifier and the target ACL, forming a second ACL; 2. The ACL is delivered to the IFP of the target forwarding chip. In this way, the forwarding chip can be made to support the ACL of the ultra-long matching field without changing the structure of the forwarding chip.
Description
technical field [0001] The present disclosure relates to the technical field of communications, and in particular, to an ACL delivery method and network equipment. Background technique [0002] In order to filter data packets passing through a network device, it is usually necessary to configure a series of ACLs (Access Control List, Access Control List), and each ACL includes a matching field and a corresponding matching action. When a packet matching the matching field in the ACL is identified, a corresponding matching action is specified for the packet. [0003] The network device usually sends the ACL to the FP (Filter Processor, filter processor) of the forwarding chip, and the FP performs ACL matching. However, the forwarding chip in the existing network equipment has limited FP matching ability, that is, the maximum matching length supported is limited. When the matching length of the ACL to be issued is too long, it will not be supported by the FP of the forwarding ...
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IPC IPC(8): H04L29/06
CPCH04L63/101
Inventor 谭晨星
Owner NEW H3C TECH CO LTD