No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

NE40E V800R010C10SPC500 Configuration Guide - QoS 01

This is NE40E V800R010C10SPC500 Configuration Guide - QoS
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
MPLS DiffServ Configuration

MPLS DiffServ Configuration

BA and PHB

This section describes MPLS DiffServ configurations, which involves BA and PHB definitions. For details about BA and PHB definitions, see BA and PHB.

BA and PHB Implementations in an MPLS DiffServ Scenario

Three modes are defined in MPLS DiffServ scenarios: Uniform, Pipe, and Short Pipe.

  • In Uniform mode, the original priorities of packets are used for QoS implementation on an MPLS network. The original priorities of packets are reset when the packets are leaving the MPLS network.
  • In Pipe or Short Pipe mode, packets are allocated a desired priority on the MPLS network, regardless of their original priorities. After leaving the backbone network, the original priorities of packets remain unchanged.
    • In Pipe mode, the egress on the MPLS network processes a packet based on its re-allocated priorities.
    • In Short Pipe mode, the egress on the MPLS network processes a packet based on its original priorities.
Figure 9-2 BA and PHB implementation on a PE
Figure 9-3 BA and PHB implementation on a P
  • Both BA and PHB implementations are required on the network-side (NNI) interface of a PE. Therefore, run the trust upstream command on the network-side interface.
  • Both BA and PHB implementations are required on the network-side (NNI) and user-side (UNI) interfaces of a P. Therefore, run the trust upstream command on both the network-side and user-side interfaces.
  • On the UNI interface of a PE, implement BA for upstream traffic and the one of the following operations for downstream traffic:

    • In Uniform mode, PHB is required. To be specific, in Uniform mode, both BA and PHB implementations are required on the PE. Therefore, run the trust upstream command on the UNI interface too.
    • In Pipe or Short Pipe mode, the UNI interface of the PE requires BA but not PHB. Note that the diffserv-mode command is mutually exclusive with the trust upstream command.

Translation
Download
Updated: 2019-01-03

Document ID: EDOC1100055024

Views: 22122

Downloads: 115

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next