Hash Key Type 3: All MPLS Labels

Feature Set N-ANL11

Intel® PAC
Napatech SmartNIC
Feature Description

Hash key data

The hash key data for hash key type 3 is the contents of the 20-bit label fields of all the MPLS label stacks in the frame.

Hash key data word 0 is the contents of the label field of the first MPLS label stack. Hash key data word 1 is the contents of the label field of the second MPLS label stack and so on. Like in the frame decoding process, a maximum of 7 MPLS labels are supported. Hash key data words that are not used are all zeros for hash key type 3.


This figure illustrates hash key type 3.

Hash key based on all MPLS label values


Hash key type 3 is valid for frames containing at least one MPLS label stack.