https://network-switch.com/pages/david-lorame
Published: August 5, 2026 | Last Technically Reviewed: August 5, 2026
Quick Answer
No. Huawei CloudEngine S5735-S and S5735-S-V2 switches cannot operate as members of the same stack. The names are similar and both series support Huawei Stack functionality, but Huawei classifies them as different product series running different software branches. The official S5735-S-V2 documentation permits stacking with models in the same S5735-S-V2 series only and explicitly excludes devices from other series.
The Procurement Trap Behind This Question
This compatibility problem is most likely to appear during capacity expansion, spare-part purchasing or hardware replacement.
A procurement record may shorten both generations to "S5735-S," leading a buyer to assume that -V2 identifies only a newer production batch. For example, an existing deployment may contain an original S5735-S24T4X-X, while the replacement quotation lists an S5735-S24T4XE-V2.
Those names look closely related, but they belong to different Huawei documentation and software platforms:
| Device generation | Typical model example | Software branch | Same mixed stack supported? |
| Original S5735-S | S5735-S24T4X-X | VRP V200 | No |
| S5735-S-V2 | S5735-S24T4XE-V2 | VRP V600 | No |
Huawei documents stacking for the original S5735-S series under V200, with support beginning from V200R019C10. The S5735-S-V2 series uses the V600 virtualization documentation and supports Stack beginning from V600R022C01.
The -V2 suffix is therefore not merely a firmware level that can be added to an older switch through an upgrade. It identifies a separate hardware generation and product-series membership.
What Huawei's "Same Series" Rule Means
Huawei's current V600R024C10 Stack Support page states:
S5735-S-V2 devices support Stack from V600R022C01.
They can form a stack with other supported models in the same S5735-S-V2 series.
They cannot form a stack with devices from another series.
The original S5735-S is not listed as an S5735-S-V2 stack member. It belongs to the earlier V200 S5735-S series, so it falls outside the permitted same-series boundary.
Huawei's V200 deployment recommendations apply the same general principle: switches from different series cannot form a stack, and even models within a broader family can be mixed only when the model-specific support matrix explicitly allows the combination.
This means that none of the following proves compatibility:
both product names begin with S5735-S;
both data sheets mention Stack or iStack;
both switches have 10GE uplink ports;
a DAC or dedicated stack cable physically fits;
or both devices can individually form stacks with switches from their own generation.
Physical connectivity is not a substitute for Huawei's supported-member matrix.
Two-Minute Compatibility Check
Before purchasing an expansion or RMA replacement, verify these three items.
1. Check the complete model suffix
Read the entire model name, including -V2.
S5735-S24T4X-X
S5735-S24T4XE-V2
Do not approve a purchase based on a quotation that lists only "Huawei S5735" or "S5735-S."
2. Check the chassis or electronic label
The physical label identifies the complete model and part number. Huawei also documents electronic labels as a source of the hardware model, part number and manufacturing information.
Use the complete part number when checking Huawei Info-Finder or requesting an expansion model. Similar port counts do not establish stack compatibility.
3. Check the software branch
A brief version check provides a strong generation indicator:
display version
A version beginning with V200R... identifies the original S5735-S software platform.
A version beginning with V600R... identifies the S5735-S-V2 platform.
The software branch is not the only purchasing check-the full SKU remains authoritative-but a V200/V600 mismatch immediately shows that the proposed members do not belong to the same stack generation.
Compatibility rule: If one proposed member is an original S5735-S running V200 and the other is an S5735-S-V2 running V600, stop. They cannot form one supported stack.
What to Do If Both Generations Are Already On Site
The preferred solution is to build each stack from switches in the same supported series:
expand an original S5735-S stack with a Huawei-supported S5735-S member;
or build an S5735-S-V2 stack using models listed in the S5735-S-V2 compatibility documentation.
If both generations must remain in the network, operate them as separate logical switches and connect them through ordinary Ethernet uplinks.
A single uplink is technically valid for a simple non-redundant connection. It does not inherently create an STP loop. Where the design requires additional bandwidth or link redundancy, a supported LACP Eth-Trunk can be used between the independent V200 and V600 systems. That Eth-Trunk is an inter-switch connection; it does not merge the devices into one stack or one management plane.
The appropriate uplink design still depends on available ports, failure-domain requirements and the surrounding Layer 2 or Layer 3 topology. A full Eth-Trunk configuration is outside the scope of this compatibility answer.
Check the Series Before Ordering
Network-Switch.com lists original models such as the Huawei S5735-S24P4X and additional products in the Huawei S5735 Series collection.
Before purchasing a replacement or expansion unit, provide the complete model, part number and display version output. Network-Switch.com's Network Solutions and Technical Support team can check whether the proposed model belongs to the correct stack series before shipment.
The Buying Rule
Do not read -V2 as "the same switch, but newer."
For stack planning, treat these as separate platforms:
S5735-S + S5735-S: potentially supported after checking the V200 matrix.
S5735-S-V2 + S5735-S-V2: potentially supported after checking the V600 matrix.
S5735-S + S5735-S-V2: not supported in the same stack.
Evidence Statement
This compatibility conclusion is based on Huawei's official V600 S5735-S-V2 Stack Support page and Huawei's V200 stack deployment and support documentation. It is not inferred from product-name similarity, reseller listings or cable compatibility.