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Configuration Guide - Ethernet Switching

CloudEngine 8800, 7800, 6800, and 5800 V200R003C00

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, MUX VLAN, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, and Layer 2 protocol transparent transmission.
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Licensing Requirements and Limitations for STP/RSTP

Licensing Requirements and Limitations for STP/RSTP

Involved Network Element

Other network elements also need to support STP or RSTP.

Licensing Requirements

STP or RSTP is a basic feature of a switch and is not under license control.

Version Requirements

Table 9-15 Products and minimum version supporting STP or RSTP

Product

Minimum Version Required

CE8860EI

V100R006C00

CE8861EI/CE8868EI

V200R005C10

CE8850-32CQ-EI

V200R002C50

CE8850-64CQ-EI

V200R005C00

CE7850EI

V100R003C00

CE7855EI

V200R001C00

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

CE5810EI

V100R002C00

CE5850EI

V100R001C00

CE5850HI

V100R003C00

CE5855EI

V100R005C10

CE5880EI

V200R005C10

Feature Limitations

  • On networks that run STP/RSTP/MSTP/VBST, configure an optimal core switch as the root bridge to ensure stability of the STP Layer 2 network. Otherwise, new access devices may trigger STP root bridge switching, causing short service interruptions.

  • When STP or RSTP is enabled on a ring network, STP or RSTP immediately starts spanning tree calculation. Parameters such as the device priority and port priority affect spanning tree calculation, and changing these parameters may cause network flapping. To ensure fast and stable spanning tree calculation, perform basic configurations on the switch and interfaces before enabling STP or RSTP.
  • RSTP uses a single spanning tree instance on the entire network. As a result, performance deterioration cannot be prevented when the network scale grows. Therefore, the network diameter cannot be larger than 7.

  • BPDU protection takes effect only for the manually configured edge port.

  • Loop prevention and root protection cannot be configured on the same interface.

  • In versions earlier than V200R001C00, STP cannot be configured on a user-side interface of a VXLAN tunnel. Starting from V200R001C00, STP can be configured on a user-side interface of a VXLAN tunnel that accesses the VXLAN as a VLAN. In V200R002C50 and later versions, STP can be configured on a user-side interface of a VXLAN tunnel when the device is deployed to provide VXLAN access through a Layer 2 sub-interface or to provide VLAN access.
  • For CE6870EI, In V200R001C00, the bpdu bridge enable command is not supported on the VXLAN network. To enable BPDU packets to traverse the VXLAN network, run the undo mac-address bpdu [ mac-address [ mac-address-mask ] ] command in the system view. In this command, mac-address specifies the MAC address of BPDU packets that need to traverse the VXLAN network.

    For CE switches excluding CE5880EI, CE6870EI, CE6875EI, and CE6880EI: in versions earlier than V200R001C00, if the bpdu bridge enable command is configured on an access-side port on the VXLAN network connected to an STP network, BPDU packets cannot traverse the VXLAN network. This causes loops on the STP network. In V200R001C00 and later versions, the bpdu bridge enable command is not supported on the VXLAN network. If this command is configured in a version earlier than V200R001C00, it will be deleted from the device configurations after an upgrade to V200R001C00 or a later version. To enable BPDU packets to traverse the VXLAN network, run the undo mac-address bpdu [ mac-address [ mac-address-mask ] ] command in the system view. In this command, mac-address specifies the MAC address of BPDU packets that need to traverse the VXLAN network.

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Updated: 2019-05-08

Document ID: EDOC1100004351

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