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SPAN-LEAF SOLUTIONS
Obviously, compared with three-tier architecture, spine-leaf solutions should be more suitable for IDC using due to the traffic domains changed from north-south to east-west, which makes the architecture flatter. but definitely easier to expansion.
solutions, which distribute workloads by layer-to-layer, may need more hardware from layer up to cover the bandwidth increase from layer down. The spine-leaf architecture, depending on the capabilities of network switches and each leaf switch connected to each spine switch, architected a full-mesh area which can be worked as either layer2 or layer3 according to the specific requirements. Layer 3 spine-leafs hardware needs each link can be routed with the protocol of OSPF or BGP or ECMP and layer 2 should support TRILL or SPB protocols alike. This architecture provides the connection from spine to leaf minimum latency and bottle necks free. Spine switch can be expanded or removed according to data changed.
Based on the ports arrangement of Spain-leaf switches, mostly from 40G-400G, Rayoptek can provide transceivers as the list below.
|
MPO interface |
Product description |
Using environment | Data sheet |
|
QSFP28 PSM4 |
4X25.78125G QSFP28 PSM4 2Km using single mode fiber |
Spine switches | Download |
| QSFP28 SR4 | 4X25.78125G QSFP28 SR4, 4DDM,70M on OM3 |
Spine switches |
Download |
|
QSFP+ PSM IR4 |
QSFP+ IR4 2km optical transceiver with full real-time digital diagnostic monitoring | leaf switches | Download |
|
QSFP+PSM LR4 |
QSFP+ LR4 10km optical transceiver with full real-time digital diagnostic monitoring | leaf switches | Download |
|
Dual LC interfaces |
Product description |
Using environment | Data sheet |
|
QSFP28 LR4
|
QSFP28 LR4 10km optical transceiver with full real- time digital diagnostic monitoring and pull tab |
Spine switches | Download |
|
QSFP28 CWDM4 |
4X25.78125G QSFP28 CWDM4, 2Km using single mode fiber |
Spine switches |
Download |
|
QSFP+IR4 |
QSFP+ IR4 2km optical transceiver with full real-time digital diagnostic monitoring |
leaf switches | Download |
|
QSFP+LR4 |
QSFP+ LR4 10km optical transceiver with full real-time digital diagnostic monitoring |
leaf switches | Download |
|
QSFP+ER4 |
QSFP+ER4 40km optical transceiver with full real-time digital diagnostic monitoring |
leaf switches |
|
AOC interfaces |
Product description |
Using environment | Data sheet |
|
QSFP28 AOC
|
100Gb/s QSFP28 Active Optical Cable |
Spine switches | Download |
|
QSFP28 AOC breakout 4
|
100G to 4×25G density applications for Datacom and Proprietary protocol applications |
Spine switches |
Download |
|
QSFP+AOC |
40Gb/s QSFP+ Active Optical Cable |
leaf switches | Download |
|
QSFP+AOC breakout 4 |
40Gb/s QSFP+ – 4x10G SFP+ Active Optical Cable |
leaf switches | Download |