Cisco Nexus 9808 Switch Overview

Cisco Nexus 9808 Switch Overview

The Cisco 9808 switch includes:

  • The Cisco 9808 is a 16-RU switch that supports distributed forwarding across multiple field replaceable units (FRUs).

Cisco 9800 Series Switches

The following table describes the Cisco 9808 switch components, and the supported quantity.

Table 1. Cisco 9808 Switch Components

Component

Quantity

Line cards

8

Supervisor modules

2

Fabric modules

8

Fan trays

4

Power trays

3

Power supplies

HVAC/HVDC—9 (3 per tray)

DC60—12 (4 per tray)

Line Card Overview

Cisco Nexus 9800 switches support the following line cards:

Table 2. Supported Line Cards and Transceivers

Line Card PIDs

Transceivers

N9K-X9836DM-A

QSFP-DD / QSFP28 / QSFP+

N9K-X98900CD-A

QSFP-DD / QSFP28 / QSFP+

Note

When unlocking the ejector button and then relocking it without removing the line card, the line card will power down. The line card will not power up and will not show poweroff module in command line interface. Preforming OIR is required to power up the line card.

Supervisor Module Overview

Cisco Nexus 9800 Supervisor modules (N9K-C9800-SUP-A and N9K-C9800-SUP-B) manage all control plane functions on the Cisco Nexus 9800 Series Switches.

Figure 1. Supervisor Module N9K-C9800-SUP-A

1

Console RS-232 Serial Port RJ45

5

SyncE BITS/DTI/J.211

2

USB Port Type-A (2-ports). Port A gets detected ahead of Port B.

Top: Port B

Bottom: Port A

6

G.703 Time-of-Day (TOD)

3

Control Plane Expansion SFP/SFP+ port

7

1.0/2.3 50 ohm connector for 10 MHz, input, and output

4

Top: Management Ethernet (10/100/1000-Mbps) RJ-45 (Copper) port LAN.

Bottom: IEEE 1588 Precision Time Protocol (PTP)

8

1.0/2.3 50 ohm connector for 1 PPS, input, and output
Figure 2. Supervisor Module N9K-C9800-SUP-B
N9K-C9800-SUP-B

1

 Control Plane Expansion SFP/SFP+ port

Note

 

Expansion ports are not supported.

7

G.703 Time-of-Day (TOD) port

2

IEEE 1588 Precision Time Protocol (PTP) port

8

Global Navigation Satellite System (GNSS) port

3

Console RS-232 Serial port RJ45

9

1.0/2.3 50 ohm connector for 1 PPS, input, and output

4

USB port Type-A

10

1.0/2.3 50 ohm connector for 10 MHz, input, and output

5

Management Ethernet (10/100/1000-Mbps) RJ-45 (Copper) port LAN

11

USB port Type-B. Port A gets detected ahead of port B

6

SyncE BITS/DTI/J.211 port

-

-

Fabric Module Overview

Cisco Nexus 9808 switches support the following fabric modules:

  • N9K-C9808-FM-A—Cisco Nexus 9808 Fabric Module

Weight and Power Consumption

For chassis dimensions and weight, please refer to the following table.

Table 3. Weight and Dimensions

Weight

Unloaded: 162 lbs. (73 kg.)

Fully loaded: 658 lbs. (299 kg.)

Dimensions

(H) 28 x (W) 17.45 x (D) 33.73 in.

(71.12 x 44.32 x 85.7 cm.)

Number of Rack Units

16 RU

The following table describes the maximum power consumption of supervisors, fabric modules, fan trays and line cards in Nexus 9808 chassis.

Table 4. Power Requirements for the Cisco Nexus 9808 Switch Components

Component

Maximum power / Unit

Supervisor module (N9K-C9800-SUP-A)

95 W

Supervisor module (N9K-C9800-SUP-B)

95 W

Fabric module (N9K-C9808-FM-A)

575 W

Fan tray (N9K-C9808-FAN-A)

686 W

Line card (N9K-X9836DM-A – 36 port 400G QSFP-DD line card)

2436 W

Line card (N9K-X98900CD-A – 34 port 100G and 14 port 400G QSFP-DD line card)

2436 W

For more information, refer to the Cisco Nexus 9800 Series Switches Data Sheet.

Airflow Direction

To ensure proper airflow for the switch in your facility, position the switch with its air intake on a cold aisle and the air exhaust on a hot aisle.

Maximum Power Available to the Switch

The maximum power available for operations depends on the input power from your power source, the number and output capabilities of your power supplies, and the power redundancy mode that you use.

The following table lists the amount of power available for Cisco 9800 series switches from all available power trays.

Table 5. Maximum Power Available for a Switch with HVAC/HVDC Power Supplies

Total Power Supply

Combined Mode in Watts (No redundancy)

N+1 Redundancy Mode in Watts (with Single Supply Loss)

Total Power Tray

1

6,300

—

1

2

12,600

6,300

3

18,900

12,600

4

25,200

18,900

2

5

31,500

25,200

6

37,800

31,500

7

44,100

37,800

3

8

50,400

44,100

9

56,700

50,400
Table 6. Maximum Power Available for a Switch with DC60 Power Supplies

Total Power Supply

Combined Mode in Watts (No redundancy)

N+1 Redundancy Mode in Watts (with Single Supply Loss)

N+N Redundancy Mode in Watts (with Feed Loss)

Total Power Tray

1

4,400

—

2,200

1

2

8,800

4,400

4,400

3

13,200

8,800

6,600

4

17,600

13,200

8,800

5

22,000

17,600

11,000

2

6

26,400

22,000

13,200

7

30,800

26,400

15,400

8

35,200

30,800

17,600

9

39,600

35,200

19,800

3

10

44,000

39,600

22,000

11

48,400

44,000

24,200

12

52,800

48,400

26,400
Table 7. Maximum Power Available for a Switch with DC100 Power Supplies

Total Power Supply

Combined Mode in Watts (No redundancy)

N+1 Redundancy Mode in Watts (with Single Supply Loss)

N+N Redundancy Mode in Watts (with Feed Loss)

Total Power Tray

1

4,800

—

2,400

1

2

9,600

4,800

4,800

3

14,400

9,600

7,200

4

19,200

14,400

9,600

5

24,000

19,200

12,000

2

6

28,800

24,000

14,400

7

33,600

28,800

16,800

8

38,400

33,600

19,200

9

43,200

38,400

21,600

3

10

48,000

43,200

24,000

11

52,800

48,000

26,400

12

57,600

52,800

28,800

Supported Optics


Note

To determine which transceivers and cables are supported by this switch, refer to the Transceiver Module Group (TMG) Compatibility Matrix Tool:

https://tmgmatrix.cisco.com/home