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New Cisco Nexus 400G Switches-Nexus GX Series & 3400-S series

The new 400G Ethernet switches fall into two camps, two boxes in the Nexus 9000 family aimed at large-enterprise network customers and two in the 3400-S class targeted at high-bandwidth hyperscale users.

As for the actual switches, the Nexus 9316D-GX is a 1RU spine switch with 16 400/100/40G ports and the Nexus 93600CD-GX is a 1RU leaf switch with 28 100/40G ports and 8 400/100G ports.

The other Nexus switches, the 3400-S series, are aimed at hyperscale customers. The two models: The Nexus 3432D-S switch is a 1RU switch that offers 32 400G ports, and the 4RU Nexus 3408-S lets customers mix 100G/ 400G connections. Both feature a 12.8Tbps chip with a 70MB buffer.

The new Nexus switches will be generally available in the first half of 2019.

In the following part we will share the main models and accessories of new Cisco Nexus 400G Switches.

Cisco Nexus GX Series Terabit-Scale Switches-Models

Table1. Cisco Nexus 9300 platform switches

Model	Description
Cisco Nexus 9316D Switch	16 x 400/100-Gbps QSFP-DD ports
Cisco Nexus 93600CD Switch	28 x 100/40-Gbps Quad Small Form-Factor Pluggable (QSFP28) and 8 x 400/100-Gbps QSFP-DD ports

Table2. N93-C9316D-GX Ordering information

Part number	Product description
Hardware
N9K-C9316D-GX	Nexus 9316D Spine switch with 16p 400/100G QSFP-DD
Fan options
NXA-FAN-35CFM-PI	Nexus Fan, Nexus 2000, 3000, 9000 Single Fan, 35CFM, port side intake airflow
NXA-FAN-35CFM-PE	Nexus Fan, Nexus 2000, 3000, 9000 Single Fan, 35CFM, port side exhaust airflow
Power supply options
NXA-PAC-1100W-PI2	Nexus AC 1100W PSU Spare - port side intake
NXA-PAC-1100W-PE2	Nexus AC 1100W PSU Spare - port side exhaust
NXA-PDC-1100W-PI	Nexus 1100W Platinum DC PS, port side intake
NXA-PDC-1100W-PE	Nexus 1100W Platinum DC PS, port side exhaust
NXA-PHV-1100W-PI	Nexus 1100W Platinum HV-AC-DC PS, port side intake
NXA-PHV-1100W-PE	Nexus 1100W Platinum HV-AC-DC PS, port side exhaust
Accessories
N9K-C9300-RMK	Nexus 9000 Fixed Rack Mount Kit
N9K-C9300-ACK	Nexus 9000 Fixed Accessory Kit

Table3. N93-C93600CD-GX Ordering information

Part number	Product description
Hardware
N9K-C93600CD-GX	Nexus 9316D Spine and Leaf switch with 28p 100/40G QSFP28 and 8p 400/100G QSFP-DD
Fan options
NXA-FAN-35CFM-PI	Nexus Fan, Nexus 2000, 3000, 9000 Single Fan, 35CFM, port side intake airflow
NXA-FAN-35CFM-PE	Nexus Fan, Nexus 2000, 3000, 9000 Single Fan, 35CFM, port side exhaust airflow
Power supply options
NXA-PAC-1100W-PI2	Nexus AC 1100W PSU Spare - port side intake
NXA-PAC-1100W-PE2	Nexus AC 1100W PSU Spare - port side exhaust
NXA-PDC-1100W-PI	Nexus 1100W Platinum DC PS, port side intake
NXA-PDC-1100W-PE	Nexus 1100W Platinum DC PS, port side exhaust
NXA-PHV-1100W-PI	Nexus 1100W Platinum HV-AC-DC PS, port side intake
NXA-PHV-1100W-PE	Nexus 1100W Platinum HV-AC-DC PS, port side exhaust
Accessories
N9K-C9300-RMK	Nexus 9000 Fixed Rack Mount Kit
N9K-C9300-ACK	Nexus 9000 Fixed Accessory Kit

Info from

https://www.cisco.com/c/en/us/products/collateral/switches/nexus-9000-series-switches/datasheet-c78-741560.html

Table4. Cisco Nexus 3408-S Switch Ordering information

Part number	Description
Chassis
N3K-C3408-S	Nexus 3408-S switch with 32 ports of QSFP-DD
NXM-X16C	Nexus 100G Line Expansion Module
NXM-X4D	Nexus 400G Line Expansion Module
NXM-XBLNK	Nexus Blank Line Expansion Module
NXA-FAN-300CFM-PI	Nexus fan, forward airflow (port-side intake)
NXA-PHV-2KW-PI	Nexus 2KW HV power supply, forward airflow (port-side intake)
NXA-PDC-2KW-PI	Nexus 2KW DC power supply, forward airflow (port-side intake)
NXA-PAC-2KW-PI	Nexus 2KW AC power supply, forward airflow (port-side intake)
Software Licenses
N3K-LAN3K9	Nexus 3408-S layer 3 LAN Enterprise License
Spares
N3K-C3408-S=	Nexus 3408-S switch with 32 ports of QSFP-DD spare
NXM-X16C=	Nexus 100G Line Expansion Module spare
NXM-X4D=	Nexus 400G Line Expansion Module spare
NXM-XBLNK=	Nexus Blank Line Expansion Module spare
NXA-FAN-300CFM-PI=	Nexus fan, forward airflow (port-side intake) spare
NXA-PHV-2KW-PI=	Nexus 2KW HV power supply, forward airflow (port-side intake) spare
NXA-PDC-2KW-PI=	Nexus 2KW DC power supply, forward airflow (port-side intake) spare
NXA-PAC-2KW-PI=	Nexus 2KW AC power supply, forward airflow (port-side intake) spare

More info from https://www.cisco.com/c/en/us/products/collateral/switches/nexus-3000-series-switches/datasheet-c78-741562.html

Table5. Cisco Nexus 3432D-S Ordering information

Part number	Description
Chassis
N3K-C3432D-S	Nexus 3432D-S switch with 32ports of QSFP-DD
NXA-FAN-35CFM-PE	Nexus Fan, Reverse airflow (port side exhaust)
NXA-FAN-35CFM-PI	Nexus Fan, Forward airflow (port side intake)
NXA-PAC-1500W-PE	Nexus 1500W AC Power Supply, Reverse airflow (port side exhaust)
NXA-PAC-1500W-PI	Nexus 1500W AC Power Supply, Forward airflow (port side intake)
Software Licenses
N3K-LAN3K9	Nexus 3432D-S Layer 3 LAN Enterprise License
Spares
N3K-C3432D-S=	Nexus 3432D-S switch with 32ports of QSFP-DD spare
NXA-FAN-35CFM-PE=	Nexus Fan, Reverse airflow (port side exhaust) spare
NXA-FAN-35CFM-PI=	Nexus Fan, Forward airflow (port side intake) spare
NXA-PAC-1500W-PE=	Nexus 1500W AC Power Supply, Reverse airflow (port side exhaust) spare
NXA-PAC-1500W-PI=	Nexus 1500W AC Power Supply, Forward airflow (port side intake) spare