The most straightforward way to connect 100G traffic is by using standard transceivers and one of the most popular modules is QSFP28. Among the different types of 100G QSFP28 optical transceiver modules, QSFP28 LR4 is often chosen for its long-distance transmission and low power consumption in 100G Ethernet. This article will introduce the basic information about QSFP28 LR4 and provide compatible switch solutions for the module.
FS 100G QSFP28 LR4 is a hot-pluggable, four-channel, and full-duplex optical transceiver module, providing superior performance for 100G applications up to 10km over SMF with a working bandwidth of 1295nm to 1310nm. It provides an ideal solution for super-large-scale data centers, high-performance computing networks, enterprise core and distribution layers, campus networks etc. For more detailed information, please visit here: Overview of QSFP28 LR4 Optical Transceiver.
|Max Data Rate||103.125Gbps (4x 25.78Gbps)|
|Max Cable Distance||10km|
|Commercial Temperature Range||0 to 70°C (32 to 158°F)|
|Protocols||IEEE 802.3ba 100GBASE-LR4, IEEE 802.3bm, QSFP28 MSA, SFF-8665, SFF-8636|
FS QSFP28 LR4 module is usually applied to three scenarios: direct connection for 100GbE switches in data centers, direct connection for telecom and 5G wireless network deployments, and supports telecom service provider long-distance transmission applications (the figure below shows the direct connection in two sites).
Figure: FS 100GBASE LR4 Service Provider Application
Here listed the network switches that FS 100G QSFP28 LR4 module can work with (as the table shows below).
|Switches||Description||Switching Capacity||Forwarding Rate|
|Cisco C9500-24Y4C||Cisco Catalyst 9500 Series high-performance 24p 1/10/25G SFP28||2.0 Tbps||1 Bpps|
|Cisco N9K-C93180YC-EX||Nexus 9K Fixed with 48p 1/10G/25G SFP and 6p 40G/100G QSFP28||2.16 Tbps||1.6 Bpps|
|Cisco N9K-C92160YC-X||Nexus 9200 with 48p 1/10G/25G SFP+ and 6p 40G QSFP+ or 4p 100G QSFP28||7.2 Tbps||5.35 Bpps|
|Huawei S6720-30L-HI-24S||Huawei S6700 Series 24p 10G SFP+, 4p 40G QSFP+, and 2p 100G/40G QSFP28||2.56 Tbps||/|
|Extreme X690-48x-2q-4c||Extreme X690 Series 48p 1G/10G SFP+, 2p 10G/40G QSFP+, and 4p 10G/25G/40G/50G/100G QSFP28||1.76 Tbps||759 Mpps|
|HP 5950 32Q28 Switch JH321A||HPE FlexFabric 5950 Switch Series 2p 1G/10G SFP+ and 32p 100G QSFP28||25.6 Tbps||/|
|Juniper QFX10002-72Q||The QFX10002-72Q 40GbE switch offers 72 QSFP+ ports or 24 QSFP28 ports with four redundant 1600 W AC/DC power supplies and three fan trays.||5.76 Tbps||2 Bpps|
|Dell Z9100-ON||The switch can be configured to have either 32p 100G, 64p 50G, 32p 40G, 128p 25G or 128+2p 10G.||6.4 Tbps||4400 Mpps|
|Arista DCS-7160-48YC6||Arista 7160 Series, High Capacity 48p 25G SFP and 6p 100G QSFP||6.4 Tbps||2.4 Bpps|
|FS S5850-48S2Q4C||48-Port Ethernet L3 Fully Managed Plus Switch, 48 x 10Gb SFP+ with 2x 40Gb QSFP+ and 4x 100Gb QSFP28||1.92 Tbps||1071.4 Mpps|
|FS S5860-48SC||48-Port Ethernet L3 Fully Managed Pro Switch, 48x 10Gb SFP+, with 8x 100Gb QSFP28||2.56 Tbps||1904 Mpps|
|FS N5860-48SC||48-Port L3 Data Center Switch, 48x 10Gb SFP+, with 8 100GbE QSFP28||2.56 Tbps||1.90 Bpps|
|FS N8560-32C||32-Port Ethernet L3 Data Center Switch, 32x 100Gb QSFP28||6.4 Tbps||4.76 Bpps|
|FS N8560-48BC||48-Port Ethernet L3 Data Center Switch, 48x 25Gb SFP28, with 8x 100Gb QSFP28||4 Tbps||2.98 Bpps|
|FS N8560-64C||64-Port Ethernet L3 Data Center Switch, 64x 100Gb QSFP28||12.8 Tbps||9.52 Bpps|
|FS N8550-32C||32-Port 100Gb QSFP28 L3 Trident 3 Data Center Managed Ethernet Switch||6.4 Tbps||4.7 Bpps|
|FS N8550-48B8C||48-Port 25Gb SFP28 L3 Trident 3 Data Center Managed Ethernet Switch with 8 100Gb QSFP||4 Tbps||2.9 Bpps|
|FS NC8200-4TD||4-Slot 2U Ethernet L3 Data Center Chassis Switch Unloaded, Supports 4x 25/40/100Gb Line Cards||6.4 Tbps||4.76 Bpps|
|FS NC8400-4TH||4-Slot 4U Ethernet L3 Data Center Chassis Switch Unloaded, Supports 4x 32-Port 100Gb QSFP28 Line Card||25.6 Tbps||19.05 Bpps|
All FS QSFP 100G LR4 transceivers must run through programming and an extensive series of platform diagnostic tests to ensure its performance and compatibility. Therefore, FS QSFP28 LR4 optical modules with high quality can provide ideal solutions for various FS and non-FS switches applied in long-distance (no more than 10km) 100G direct connection and interconnection.