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Data Center

Cisco 100GBASE-SR4 QSFP28 Data Center Connection Solutions

Cisco 100GBASE-SR4 QSFP28 Data Center Connection Solutions

FS Official 2018-05-06

As high density is becoming one of the trends in data center, 100GBASE-SR4 QSFP28 offers customers high-density and low-power 100 Gigabit Ethernet connectivity options for data center and high-performance computing networks. This guide introduces two ways to connect two Cisco Nexus 3232C switches with Cisco 100G QSFP28 SR4 transceivers in short-range applications.

Recommendation 1: Cisco 100G QSFP28 SR4 Transceivers Interconnection

When interconnect Cisco 100G QSFP28 SR4 transceivers for ultra high density networks in data center, HD fiber enclosures preloaded with 12 MTP Key-up/Key-down adapters are used to complete the interconnection.

Item No. ID# Description
1 48354 Cisco QSFP-100G-SR4-S Compatible 100GBASE-SR4 850nm 100m MTP/MPO
2 68106 5m (16ft) MTP Female to Female 12 Fibers OM4 (OM3) 50/125 Multimode Trunk Cable, Type A, Elite, Plenum (OFNP), Magenta
3 35510 12 MTP Key-up/Key-down Adapters (Black), Horizontal FAP
4 51607 1U HD Fiber Enclosure unloaded, to 4x FAPs Fiber Adapter Panels or 4x HD MPO/MTP Cassettes
5 30962 5m (16ft) MTP Female to Female 12 Fibers OM4 (OM3) 50/125 Multimode Trunk Cable, Type A, Elite, Plenum (OFNP), Magenta
6 68020 3m (10ft) MTP Female to Female 12 Fibers OM4 (OM3) 50/125 Multimode Trunk Cable, Type B, Elite, Plenum (OFNP), Magenta

Recommendation 2: Cisco 100G QSFP28 SR4 to 4x 25G SFP28 Breakout Interconnection

The 100G QSFP28 SR4 with 4 electrical lanes can support 4x25G breakout mode. Then how to breakout 100G link into 4x 25G for going to different purpose? A type-B female MPO/MTP-4x LC harness cable is required. The following figure shows 1x Cisco 100G QSFP28 SR4 transceiver to 4x 25G SFP28 transceivers interconnection via a MTP-4LC harness cable. The CLE-BOX fiber optic cassette cleaner is also needed to maintain and guarantee good quality of fiber optic connection.

Item No. ID# Description
1 69375 N8500-48B6C (48*25GbE+6*100GbE) 25G L2/L3 Switch Loaded with ONIE, Bare-Metal Hardware
2 67991 Cisco SFP-25G-SR-S Compatible 25G SFP28 850nm 100m DOM Transceiver
3 26388 CLE-BOX Fiber Optic Cassette Cleaner for LC/SC/FC/ST/MU/D4/DIN Connector
4 68047 1m (3ft) MTP Female to 4 LC UPC Duplex 8 Fibers OM4 Harness Cable, Type B
5 48354 Cisco QSFP-100G-SR4-S Compatible 100GBASE-SR4 QSFP28 850nm 100m DOM Transceiver
6 29126 S8050-20Q4C (20*40GE+4*100GE) 40GbE IP Storage and Spine/Aggregation Layer Switch
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