S5710-EI 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 5.

**Table 1** Service port stacking support
Device Series	Port Supporting Stacking	Stack Cable	Rate of a Single Port	Remarks
S5710-EI	Any 10GE ports, including the four fixed 10GE SFP+ optical ports on the front panel and ports on the ES5D21X02S00 rear card (A switch supports a maximum of two rear cards, and each card provides two 10GE SFP+ optical ports.)	1 m SFP+ passive high-speed copper cable 3 m SFP+ passive high-speed copper cable 10 m SFP+ active high-speed copper cable 3 m and 10 m AOC cables (supported in V200R003 and later versions) 10GE SFP+ optical module and optical fiber	10 Gbit/s	Any models of the S5710-EI series can set up a stack. V200R001: 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 three stack member ports. A switch supports a maximum of four stack member ports. V200R002 and later versions: 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 eight stack member ports. Ports on different rear cards can be added to the same logical stack port, but ports on a rear card and fixed ports on the front panel cannot be added to the same logical stack port.