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Configuration Guide - QoS

CloudEngine 8800, 7800, 6800, and 5800 V200R002C50

This document describes the configurations of QoS functions, including MQC, priority mapping, traffic policing, traffic shaping, interface-based rate limiting, congestion avoidance, congestion management, packet filtering, redirection, traffic statistics, and ACL-based simplified traffic policy.
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Licensing Requirements and Limitations for Redirection

Licensing Requirements and Limitations for Redirection

Involved Network Elements

Other network elements are not required.

Licensing Requirements

Redirection is a basic feature of a switch and is not under license control.

Version Requirements

Table 9-1 Products and minimum version supporting redirection

Product

Minimum Version Required

CE5810EI V100R002C00
CE5850EI V100R001C00
CE5850HI V100R003C00
CE5855EI V100R005C10
CE5880EI V200R005C10
CE6810EI V100R003C00
CE6810-48S4Q-LI/CE6810-48S-LI V100R003C10
CE6810-32T16S4Q-LI/CE6810-24S2Q-LI V100R005C10
CE6850EI V100R001C00
CE6850-48S6Q-HI V100R005C00
CE6850-48T6Q-HI/CE6850U-HI/CE6851HI V100R005C10
CE6855HI V200R001C00
CE6856HI V200R002C50
CE6857EI V200R005C10
CE6860EI V200R002C50
CE6865EI V200R005C00
CE6870-24S6CQ-EI/CE6870-48S6CQ-EI V200R001C00
CE6870-48T6CQ-EI V200R002C50
CE6875-48S4CQ-EI V200R003C00
CE6880EI V200R002C50
CE7850EI V100R003C00
CE7855EI V200R001C00
CE8850-32CQ-EI V200R002C50
CE8850-64CQ-EI V200R005C00
CE8860EI V100R006C00
CE8861EI V200R005C10
CE8868EI V200R005C10

Feature Limitations

  • Traffic policies containing redirection cannot be applied in the outbound direction.
  • Packets forwarded at Layer 2 are redirected to an interface. Packets forwarded at Layer 3 and packets forwarded in unicast mode to a VXLAN tunnel are redirected to the next hop.
  • For CE6870EI and CE6875EI switches, the action of redirecting packets to an observing interface group is valid for only Layer 2 packets.
  • Applying a traffic policy containing redirection to the CPU may affect the system performance. Exercise caution when you apply a traffic policy containing redirection to the CPU.
  • The CE6810LI cannot redirect Layer 3 packets to the outbound interface that can be a physical interface or an Eth-Trunk.
  • For CE6870EI and CE6875EI switches, when a traffic policy containing redirection is applied to a Layer 2 Ethernet interface, the Layer 2 Ethernet interface can only redirect Layer 2 packets. When a traffic policy containing redirection is applied to a VLANIF interface, the VLANIF interface can redirect both Layer 2 and Layer 3 packets. A traffic policy containing redirection can be applied to a Layer 3 physical interface, but does not take effect.

  • For CE6870EI and CE6875EI switches, on the device at the VXLAN tunnel egress, all VXLAN packets cannot be redirected to interfaces.

  • For CE switches excluding CE6870EI and CE6875EI switches, in a Super Virtual Fabric (SVF) of fixed switches, the inbound interface of packets cannot be the redirect-to interface. You can run the port bridge enable command on the redirect-to interface to enable the port bridge function so that the interface can forward packets with the same source and destination addresses.
  • On other models excluding the CE6870EI and CE6875EI, when a traffic policy that defines redirection to a specified interface is applied to a Layer 3 main interface, the redirect-to-interface must be the Layer 3 main interface. On the CE6855HI, CE6856HI, CE6857EI, CE6865EI, CE8861EI, CE8868EI, and CE7855EI, a traffic policy that defines redirection to a specified interface cannot be configured on a Layer 3 main interface.
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Updated: 2019-03-21

Document ID: EDOC1000166640

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