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Configuration Guide - Ethernet Switching

S1720, S2700, S5700, and S6720 V200R012(C00 and C20)

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, VLAN aggregation, MUX VLAN, VLAN termination, 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 VLANs

Licensing Requirements and Limitations for VLANs

Involved Network Elements

Other network elements are not required.

Licensing Requirements

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

Version Requirements

Table 4-6  Products and versions supporting VLANs
Series Products Software Version
S2700 S2700SI

V100R005C01, V100R006(C00&C01&C03&C05)

S2700EI

V100R005C01, V100R006(C00&C01&C03&C05)

S2710SI

V100R006(C03&C05)

S2720EI

V200R006C10, V200R009C00, V200R010C00, V200R011C10, V200R012C00

S2750EI

V200R003C00, V200R005C00SPC300, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00

S3700 S3700SI

V100R005C01, V100R006(C00&C01&C03&C05)

S3700EI

V100R005C01, V100R006(C00&C01&C03&C05)

S3700HI

V100R006C01, V200R001C00

S5700 S5700LI

V200R001C00, V200R002C00, V200R003(C00&C02&C10), V200R005C00SPC300, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00

S5700S-LI

V200R001C00, V200R002C00, V200R003C00, V200R005C00SPC300, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00

S5710-C-LI

V200R001C00

S5710-X-LI

V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00

S5700EI

V100R005C01, V100R006(C00&C01), V200R001(C00&C01), V200R002C00, V200R003C00, V200R005(C00&C01&C02&C03)

S5700SI

V100R005C01, V100R006C00, V200R001C00, V200R002C00, V200R003C00, V200R005C00

S5710EI

V200R001C00, V200R002C00, V200R003C00, V200R005(C00&C02)

S5720EI

V200R007C00, V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00

S5720LI, S5720S-LI

V200R010C00, V200R011C00, V200R011C10, V200R012(C00&C20)

S5720SI, S5720S-SI

V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00

S5720I-SI

V200R012C00

S5700HI

V100R006C01, V200R001(C00&C01), V200R002C00, V200R003C00, V200R005(C00SPC500&C01&C02)

S5710HI

V200R003C00, V200R005(C00&C02&C03)

S5720HI

V200R006C00, V200R007(C00&C10), V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00

S5730HI

V200R012C00

S5730SI

V200R011C10, V200R012C00

S5730S-EI

V200R011C10, V200R012C00

S6700 S6700EI

V100R006C00, V200R001(C00&C01), V200R002C00, V200R003C00, V200R005(C00&C01&C02)

S6720EI

V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00

S6720S-EI

V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00

S6720LI, S6720S-LI

V200R011C00, V200R011C10, V200R012C00

S6720SI, S6720S-SI

V200R011C00, V200R011C10, V200R012C00

S6720HI

V200R012C00

NOTE:

For details about software mappings, visit Hardware Query Tool and search for the desired product model.

For feature support of S1700 series switches, see S1700 Series Enterprise Switches - Specifications.

Feature Limitations

  • Table 4-7 describes the VLAN specifications of different switch models.
    Table 4-7  VLAN specifications of different switch models
    Item Specification

    Maximum number of VLANs in the system

    4096 (VLAN 0 and VLAN 4095 are reserved)

    Maximum number of VLANIF interfaces in the system

    • S2700SI/S2710SI/S5710-C-LI: 1
    • S2700EI/S5710-X-LI: 8
    • S2720EI (V200R006C10, V200R009C00, V200R010C00): 8
    • S2720EI (V200R011C10, V200R012C00): 1024
    • S3700SI/S3700EI/S3700HI/S5700SI/S5700EI: 256
    • S5700HI/S5730SI/S5730S-EI/S5720EI/S5720HI/S5730HI/S5710HI/S5720I-SI/S5720SI/S5720S-SI/S5720LI/S5720S-LI/S6720LI/S6720HI/S6720S-LI/S6720SI/S6720S-SI/S6720EI/S6720S-EI: 1024
    • S2750EI/S5700LI/S5700S-LI: 1 in earlier versions of V200R005 and 8 in V200R005 and later versions
    • S5710EI/S6700EI: 256 in earlier versions of V200R005 and 1024 in V200R005 version
  • If LNP is used to dynamically negotiate the link type (LNP is enabled by default), it is recommended that each interface be added to a maximum of 1000 VLANs and a maximum of 200 interfaces be configured on a switch. If 4094 VLANs are configured globally, it is recommended that a maximum of 50 interfaces be enabled with LNP. Otherwise, the alarm about a high CPU usage is generated for a short time.
  • Plan service and management VLANs so that any broadcast storms in service VLANs do not affect switch management.
  • In practice, specify VLANs from which packets need to be transparently transmitted by a trunk interface. Avoid using the port trunk allow-pass vlan all command if possible.
  • In versions earlier than V200R005, before changing the interface type, restore the default VLAN of the interface.
  • In versions earlier than V200R005, before deleting a VLAN where a VLANIF interface has been configured, run the undo interface vlanif vlan-id command to delete the VLANIF interface.
  • All interfaces join VLAN 1 by default. When unknown unicast, multicast, or broadcast packets of VLAN 1 exist on the network, broadcast storms may occur. Note the following guidelines and limitations when using VLAN 1:
    • Do not use VLAN 1 as the management VLAN or service VLAN.
    • Remove from VLAN 1 the interfaces that do not need to join it to prevent loops. Configure a trunk interface to permit packets from VLAN 1. If a trunk interface rejects packets from VLAN 1, some protocol packets transmitted in VLAN 1 may be incorrectly discarded. To prevent such faults, take measures to prevent potential risks when packets of VLAN 1 are allowed to pass through.
    • If a spanning tree protocol is used and a trunk interface on the switch rejects packets from VLAN 1, run the stp bpdu vlan command to enable the switch to encapsulate the specified VLAN ID in outgoing STP BPDUs so that the spanning tree protocol runs properly.
    • You are advised to remove interfaces from VLAN 1 in Eth-Trunk or ring networking.
    • When the switch connects to an access device, do not configure the uplink interface of the access device to transparently transmit packets from VLAN 1. This is to prevent broadcast storms in VLAN 1..
    • When an interface is bound to a VLANIF interface for Layer 3 forwarding, remove the interface from VLAN 1 to prevent Layer 2 loops in VLAN 1.
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Updated: 2018-12-24

Document ID: EDOC1100038339

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