Outer MPLS Classification

Feature Set N-ANL11

Intel® PAC
Napatech SmartNIC
Feature Description

MPLS packets

The frame decoder recognizes an outer MPLS-encapsulated packet if the EtherType field is 0x8847 (MPLS unicast label) or 0x8848 (MPLS multicast label).

A maximum of 7 MPLS shim labels are supported.

Note: It is assumed that the next following header is IPv4 or IPv6.

MPLS length

The length of the MPLS field depends on the number of MPLS shim labels. The possible values are 0, 4, 8, 12, 16, 20, 24 and 28 bytes.