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S2700 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.
- After a UCL group is created using the ucl-group command on S2720-EI switches, a stack cannot be set up.
- Since V200R011C10, S2720-EI and S2750-EI series switches can set up stacks in service port stacking mode using dedicated stack cables.
- The number of S2750-EIs used to set up a stack is recommended to be 2 to 5. In addition, when using iMaster NCE-Campus to manage and maintain a stack, ensure that the stack has no more than four member switches.
- For S2700-EIs and S2710-SIs, if the stack system works only in Layer 2 and Layer 3 forwarding scenarios, the number of stack member switches is recommended to be 2 to 5. If the stack system works in user access or gateway scenarios that require protocol interaction, the number of stack member switches is recommended to be 2 or 3. In addition, when using iMaster NCE-Campus to manage and maintain a stack, ensure that the stack has no more than four member switches.
- The S2720-EI has only one model, S2720-28TP-EI-AC, in V200R006C10, V200R009C00, and V200R010C00. The S2720-28TP-EI-AC cannot be upgraded to V200R011C00 and later versions. The number of S2720-28TP-EI-ACs used to set up a stack is recommended to be 2 to 5. In V200R011C10 and later versions, the number of S2720-EIs used to set up a stack is recommended to be 2 to 9. In addition, when using iMaster NCE-Campus to manage and maintain a stack, ensure that the stack has no more than four member switches.
Table 3-5 Service port stacking support
Device Series |
Port Supporting Stacking |
Stack Cable |
Rate of a Single Port |
Remarks |
|---|---|---|---|---|
S2700-EI |
First two GE ports on the front panel |
1.5 m SFP stack cable |
2.5 Gbit/s |
|
S2710-SI |
First two GE ports on the front panel |
1.5 m SFP stack cable |
2.5 Gbit/s |
|
S2720-EI |
Two or four SFP optical ports |
|
2.5 Gbit/s |
|
S2750-EI |
Two SFP optical ports |
|
2.5 Gbit/s |
|