Huawei S Series Switches Stack Guide—Version and Model Requirements

As we know, switch stacking deployment has some special requirement or limitation, this blog will share the software version and model requirement in detail on Huawei S Series Switches stack deployment.

Licensing Requirements

Stacking is not under license control.

Version Requirements

Switches can set up a stack through stack card connection and service port connection based on stack port types. Service port connections are classified into ordinary and dedicated cable connections based on cable types.

Ordinary cable connection: Switches use optical cables, network cables, and high-speed cables to set up a stack.
Dedicated cable connection: Switches use dedicated stack cables to set up a stack. This connection mode is also called zero-configuration stacking.

Product	Software Version	Stack Connection Mode	Model
S2700SI	Not supported	-	All S2700SI switches do not support stacking.
S2710SI	V100R006(C03&C05)	Service port connection using ordinary cables	All S2710SI switches support stacking.
S2700EI	V100R005C01, V100R006(C00&C01&C03&C05)	Service port connection using ordinary cables	S2700-9TP-EI-AC, S2700-9TP-EI-DC, S2700-9TP-PWR-EI, S2700-18TP-EI-AC, S2700-26TP-EI-AC, S2700-26TP-EI-DC, and S2700-26TP-PWR-EI do not support stacking, whereas other models support.
S2720EI	Versions supporting service port connection using ordinary cables:	Service port connections using ordinary and dedicated cables	All S2720EI switches support stacking.
	V200R006C10, V200R009C00, V200R010C00, V200R011C10, V200R012C00, V200R013C00
	Versions supporting service port connection using dedicated cables:
	V200R011C10, V200R012C00, V200R013C00
S2750EI	Versions supporting service port connection using ordinary cables:	Service port connections using ordinary and dedicated cables	All S2750EI switches support stacking.
	V200R003C00, V200R005C00SPC300, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00
	Versions supporting service port connection using dedicated cables:
	V200R011C10 and V200R012C00
S3700SI	V100R005C01, V100R006(C00&C01&C03&C05)	Service port connection using ordinary cables	All S3700SI switches support stacking.
S3700EI	V100R005C01, V100R006(C00&C01&C03&C05)	Service port connection using ordinary cables	All S3700EI switches support stacking.
S3700HI	Not supported	-	All S3700HI switches do not support stacking..
S5700EI	V100R005C01, V100R006(C00&C01), V200R001(C00&C01), V200R002C00, V200R003C00, V200R005(C00&C01&C02&C03)	Stack card connection	All S5700EI switches support stacking.
S5700SI	V100R005C01, V100R006C00, V200R001C00, V200R002C00, V200R003C00, V200R005C00	Stack card connection	S5700-26X-SI-12S-AC does not support stacking, whereas other models support.
S5700HI	V200R003C00, V200R005C00	Service port connection using ordinary cables	All S5700HI switches support stacking.
S5700LI	Versions supporting service port connection using ordinary cables:	Service port connections using ordinary and dedicated cables	S5700-10P-LI-AC, S5700-10P-PWR-LI-AC, S5700-28P-LI-BAT, and S5700-28P-LI-24S-BAT do not support stacking, whereas other models support.
	V200R001C00, V200R002C00, V200R003(C00&C02&C10), V200R005C00SPC300, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00
	Versions supporting service port connection using dedicated cables:
	V200R011C10 and V200R012C00
S5700S-LI	Versions supporting service port connection using ordinary cables:	Service port connections using ordinary and dedicated cables	S5700S-28P-LI-AC and S5700S-52P-LI-AC do not support stacking, whereas other models support.
	V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00
	Versions supporting service port connection using dedicated cables:
	V200R011C10 and V200R012C00
S5710EI	V200R001C00, V200R002C00, V200R003C00, V200R005(C00&C02)	Service port connection using ordinary cables	All S5710EI switches support stacking.
S5710HI	V200R005C03	Service port connection using ordinary cables	All S5710HI switches support stacking.
S5710-C-LI	V200R001C00	Stack card connection	All S5710-C-LI switches support stacking.
S5710-X-LI	Versions supporting service port connection using ordinary cables:	Service port connections using ordinary and dedicated cables	All S5710-X-LI switches support stacking.
	V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00
	Versions supporting service port connection using dedicated cables:
	V200R011C10 and V200R012C00
S5720-LI and S5720S-LI	Versions supporting service port connection using ordinary cables:	Service port connections using ordinary and dedicated cables	All S5720LI and S5720S-LI switches support stacking.
	V200R010C00, V200R011C00, V200R011C10, V200R012(C00&C20), V200R013C00
	Versions supporting service port connection using dedicated cables:
	V200R011C10, V200R012C00, V200R013C00
S5720-SI and S5720S-SI	Versions supporting service port connection using ordinary cables:	Service port connections using ordinary and dedicated cables	All S5720SI and S5720S-SI switches support stacking.
	V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00, V200R013C00
	Versions supporting service port connection using dedicated cables:
	V200R011C10, V200R012C00, V200R013C00
S5720I-SI	V200R012C00, V200R013C00	Service port connections using ordinary and dedicated cables	S5720I-6X-PWH-SI-AC and S5720I-10X-PWH-SI-AC do not support stacking, whereas other models support.
S5720-EI	V200R007C00, V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00, V200R013C00	Service port connection using ordinary cables: S5720-C-EI, S5720-PC-EI	All S5720EI switches support stacking.
		Stack card connection: S5720-P-EI, S5720-C-EI, S5720-X-EI, S5720-PC-EI
		When using the stack card connection mode, note the following:
		S5720-C-EI and S5720-PC-EI series switches use dedicated stack cards to set up stacks.
		S5720-X-EI and S5720-P-EI series switches use stack ports fixed on cards to set up stacks.
S5720-HI	Versions supporting service port connection using ordinary cables:	Service port connections using ordinary and dedicated cables	All S5720HI switches support stacking.
	V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00, V200R013C00
	Versions supporting service port connection using dedicated cables:
	V200R011C10, V200R012C00, V200R013C00
S5730-HI	V200R012C00, V200R013C00	Service port connections using ordinary and dedicated cables	All S5730HI switches support stacking.
S5730-SI	Versions supporting service port connection using ordinary cables and dedicated cables:	Service port connections using ordinary and dedicated cables, and stack card connection	All S5730SI switches support stacking.
	V200R011C10, V200R012C00, V200R013C00
	Versions supporting stack card connection:
	V200R012C00 and V200R013C00
S5730S-EI	Versions supporting service port connection using ordinary cables and dedicated cables:	Service port connections using ordinary and dedicated cables, and stack card connection	All S5730S-EI switches support stacking.
	V200R011C10, V200R012C00, V200R013C00
	Versions supporting stack card connection:
	V200R012C00 and V200R013C00
S6700-EI	V100R006C00, V200R001(C00&C01), V200R002C00, V200R003C00, V200R005(C00&C01&C02)	Service port connection using ordinary cables	All S6700EI switches support stacking.
S6720-EI	Versions supporting service port connection using ordinary cables:	Service port connections using ordinary and dedicated cables	All S6720EI switches support stacking.
	V200R008C00, V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00, V200R013C00
	Versions supporting service port connection using dedicated cables:
	V200R011C10, V200R012C00, V200R013C00
S6720-HI	V200R012C00, V200R013C00	Service port connections using ordinary and dedicated cables	All S6720HI switches support stacking.
S6720S-EI	Versions supporting service port connection using ordinary cables:	Service port connections using ordinary and dedicated cables	All S6720S-EI switches support stacking.
	V200R009C00, V200R010C00, V200R011C00, V200R011C10, V200R012C00, V200R013C00
	Versions supporting service port connection using dedicated cables:
	V200R011C10, V200R012C00, V200R013C00
S6720-SI and S6720S-SI	Versions supporting service port connection using ordinary cables:	Service port connections using ordinary and dedicated cables	All S6720SI and S6720S-SI switches support stacking.
	V200R011C00, V200R011C10, V200R012C00, V200R013C00
	Versions supporting service port connection using dedicated cables:
	V200R011C10, V200R012C00, V200R013C00
S6720-LI and S6720S-LI	Versions supporting service port connection using ordinary cables:	Service port connections using ordinary and dedicated cables	All S6720LI and S6720S-LI switches support stacking.
	V200R011C00, V200R011C10, V200R012C00, V200R013C00
	Versions supporting service port connection using dedicated cables:
	V200R011C10, V200R012C00, V200R013C00

Deployment Recommendations

Connect a stack to other network devices using an Eth-Trunk and add one port of each member switch to the Eth-Trunk.
When a stack connects to access devices, configure ports directly connected to terminals as STP edge ports to prevent STP re-calculation when the ports alternate between Up and Down states. This configuration ensures normal traffic forwarding.
If storm control needs to be configured on many ports, replace storm control with traffic suppression to save CPU resources.
If port security needs to be configured on many ports, replace port security with MAC address learning limiting to save CPU resources.
Loops may occur on a network to which a stack connects. Run the mac-address flapping action error-down command to set an interface to the error-down state when MAC address flapping is detected on the interface. This improves system processing performance and allows the peer device to detect that the interface becomes Down. Additionally, if the peer device has redundant links, traffic can be rapidly switched to a normal link.

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