S5735-L, S5735S-L, S5735S-L-M, S5735-S, and S5735S-S Service Port Stacking Support

For the cables that can be used as stack cables, see "Cables" in the Hardware Description. Using other cables may cause exceptions in the stack system, for example, frequent error-down events on stack ports.
Combo ports cannot function as stack member ports.
For stacking-supported service ports, some of them can be used as stack ports, whereas some can be used as ordinary service ports.
The number of stacked switches is recommended to be 2 to 9.

**Table 1** Service port stacking support
Device Series	Port Supporting Stacking	Stack Cable	Rate of a Single Port	Remarks
S5735-L, S5735S-L, and S5735S-L-M	SFP+ optical port	For models without fan modules: 1 m and 3 m SFP+ passive high-speed copper cables 3 m and 10 m AOC cables 10GE SFP+ optical module and optical fiber (a maximum transmission distance of 0.4 km) 0.5 m and 1.5 m SFP+ dedicated stack cable For models with fan modules: 1 m and 3 m SFP+ passive high-speed copper cables 3 m and 10 m AOC cables 10GE SFP+ optical module and optical fiber 0.5 m and 1.5 m SFP+ dedicated stack cable	10 Gbit/s	Any models of the S5735-L can set up a stack. Any models of the S5735S-L can set up a stack. Any models of the S5735S-L-M can set up a stack. The S5735S-L can set up a stack with the S5735S-L-M. The S5735-L cannot set up a stack with the S5735S-L and S5735S-L-M. Ports of two different types on a switch can be configured as stack ports simultaneously, except 1 Gbit/s and 10 Gbit/s ports. Each logical stack interface can contain only ports of the same rate. If uplink SFP optical ports on the front panel or SFP+ optical ports are used as stack ports, a switch supports a maximum of two logical stack ports, and each logical stack port supports at least one stack member port and at most four stack member ports. A switch supports a maximum of four stack member ports. If electrical ports or downlink SFP optical ports on the front panel are used as stack ports, a switch supports a maximum of two logical stack ports, and each logical stack port supports at least one stack member port and at most eight stack member ports. A switch supports a maximum of 16 stack member ports.
	Uplink SFP optical ports (1000BASE-X Ethernet optical ports) on the front panel	For models without fan modules: 1 m and 3 m SFP+ passive high-speed copper cables 3 m and 10 m AOC cables 10GE SFP+ optical module and optical fiber (a maximum transmission distance of 0.4 km) 0.5 m and 1.5 m SFP+ dedicated stack cable For models with fan modules: 1 m and 3 m SFP+ passive high-speed copper cables 3 m and 10 m AOC cables 10GE SFP+ optical module and optical fiber 0.5 m and 1.5 m SFP+ dedicated stack cable	10 Gbit/s
	Downlink SFP optical ports (100 or 1000BASE-X Ethernet optical ports) on the front panel	GE SFP optical module and optical fiber	1 Gbit/s
	Electrical ports on the front panel	Category 5 or higher network cable	1 Gbit/s
S5735-S and S5735S-S	SFP+ optical port	1 m and 3 m SFP+ passive high-speed copper cables 3 m and 10 m AOC cables 10GE SFP+ optical module and optical fiber 0.5 m and 1.5 m SFP+ dedicated stack cable	10 Gbit/s	Any models of the S5735-S can set up a stack, and any models of the S5735S-S can set up a stack. The S5735-S cannot set up a stack with the S5735S-S. Ports of two different types on a switch can be configured as stack ports simultaneously, except 1 Gbit/s and 10 Gbit/s ports. Each logical stack interface can contain only ports of the same rate. If uplink SFP optical ports on the front panel or SFP+ optical ports are used as stack ports, a switch supports a maximum of two logical stack ports, and each logical stack port supports at least one stack member port and at most four stack member ports. A switch supports a maximum of four stack member ports. If electrical ports or downlink SFP optical ports on the front panel are used as stack ports, a switch supports a maximum of two logical stack ports, and each logical stack port supports at least one stack member port and at most eight stack member ports. A switch supports a maximum of 16 stack member ports.
	Uplink SFP optical ports (1000BASE-X Ethernet optical ports) on the front panel	1 m and 3 m SFP+ passive high-speed copper cables 3 m and 10 m AOC cables 10GE SFP+ optical module and optical fiber 0.5 m and 1.5 m SFP+ dedicated stack cable	10 Gbit/s
	Downlink SFP optical ports (100 or 1000BASE-X Ethernet optical ports) on the front panel	GE SFP optical module and optical fiber	1 Gbit/s
	Electrical ports on the front panel	Category 5 or higher network cable	1 Gbit/s