Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document.
Note: Even the most advanced machine translation cannot match the quality of professional translators.
Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
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 S2720EI switches, a stack cannot be set up.
- Since V200R011C10, S2720EI and S2750EI series switches can set up stacks in service port stacking mode using dedicated stack cables.
- The number of S2750EIs used to set up a stack is recommended to be 2 to 5.
- For S2700EIs and S2710SIs, 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.
- The S2720EI 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 S2720EIs used to set up a stack is recommended to be 2 to 9.
Table 3-5 Service port stacking support
Device Series |
Port Supporting Stacking | Stack Cable | Rate of a Single Port | Remarks |
|---|---|---|---|---|
| S2700EI | First two GE ports on the front panel | 1.5 m SFP stack cable |
2.5 Gbit/s |
|
S2710SI |
First two GE ports on the front panel | 1.5 m SFP stack cable |
2.5 Gbit/s |
|
| S2720EI | Two or four SFP optical ports |
|
2.5 Gbit/s |
|
S2750EI |
Two SFP optical ports |
|
2.5 Gbit/s |
|