Required inputs
Current and target switch models, software, port map, existing optics, fiber plant and migration window.
Solution
Cloud Switch Upgrade
Upgrade paths from 100G/200G to 400G/800G with host compatibility and migration risk notes.
Review This TopologyDesign constraint
Breakout availability, FEC defaults, connector reuse, mixed-speed operation and rollback capacity.
Acceptance output
Pilot ports, rollback record, link and FEC counters, reused-fiber inspection and approved migration BOM.
Cloud Switch Upgrade
Map every old and new port role before changing speeds so breakout modes, fiber reuse and staged rollback remain visible.
100G QSFP28 LR4 Optical Transceiver
CompatibleRFQ route
Candidate 100G LR4 module for DCI, ISP and enterprise single-mode links.
Speed100GFormQSFP28Reach10km class
RFQCompatibility and lead time to be confirmed
200G QSFP56 FR4 Optical Transceiver
CompatibleRFQ route
Candidate 200G QSFP56 FR4 module for duplex single-mode migration links.
Speed200GFormQSFP56Reach2km class
RFQCompatibility and lead time to be confirmed
400G QSFP-DD FR4 Optical Transceiver
CompatibleRFQ route
Candidate duplex single-mode module for 400G cloud uplinks and enterprise core links.
Speed400GFormQSFP-DDReach2km class
RFQCompatibility and lead time to be confirmed
800G QSFP-DD DR8 Optical Transceiver
CompatibleRFQ route
Candidate QSFP-DD800 module for platforms that specify QSFP-DD thermal and port constraints.
Speed800GFormQSFP-DD800Reach500m class
RFQCompatibility and lead time to be confirmed
Plan and validate the route
Breakout availability, FEC defaults, connector reuse, mixed-speed operation and rollback capacity.
Record endpoints
Current and target switch models, software, port map, existing optics, fiber plant and migration window.
Test the constraint
Breakout availability, FEC defaults, connector reuse, mixed-speed operation and rollback capacity.
Prevent the likely failure
A speed upgrade stalls when the new module fits physically but the port profile or existing fiber path cannot support it.
Define acceptance
Pilot ports, rollback record, link and FEC counters, reused-fiber inspection and approved migration BOM.
Product List
Candidate products for this solution path.
| Product | Role | Evidence gate |
|---|---|---|
| 100G QSFP28 LR4 Optical Transceiver | 100G QSFP28 LR4 | Datasheet and certificate scope required |
| 200G QSFP56 FR4 Optical Transceiver | 200G QSFP56 FR4 | Exact model proof required |
| 400G QSFP-DD FR4 Optical Transceiver | 400G QSFP-DD FR4 | Datasheet and link budget required |
| 800G QSFP-DD DR8 Optical Transceiver | 800G QSFP-DD DR8 | Host thermal gate required |
Operations handoff
A speed upgrade stalls when the new module fits physically but the port profile or existing fiber path cannot support it. Keep the acceptance record, exact model, firmware state and replacement route attached to the project.
800G RoCE Lossless Network
Ethernet networking for AI accelerates job completion and optimizes IT resources.
400G DCI Optical Solution
Build 400G DCI routes with model-specific reach and link-budget evidence.
Cloud Switch Upgrade
Migration paths from 100G/200G to 400G/800G with host compatibility review.
High-density Modular Cabling
MTP/MPO trunks, harness and cassette planning for dense optical distribution.
Support
Send host platform, topology and required proof files for review.