Tag: PHP
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Ultimate Hop Popping & QoS
The default behaviour for MPLS routers is Penultimate Hop Popping. The last hop router generates the implicit null to indicate that the penultimate router should pop the label. However, if the network is configured for QoS based on MPLS EXP bits, then QoS is lost between penultimate router and last hop router. Therefore, in this…