Cisco 8700 Series Routers Overview

Cisco 8700 Series Routers

Cisco 8711-32FH-M

The Cisco 8711-32FH-M is a P100 silicon chip-based router that provides 12.8 Tbps of network bandwidth. The Cisco 8711-32FH-M is a fixed-port, high density, one rack-unit form factor router. Supported ports include 32 QSFP56-DD 400GbE ports. It includes HBM/2.5D for advanced performance, and supports Cisco 400GbE Digital Coherent Optical Modules.

Cisco 8711-32FH-M Router Front View

The front of the chassis has the following:

  • 32 x QSFP56-DD 400GbE ports or 16 x 800G QSFP-DD800 ports


    Note

    Each of these ports can support 2x400GbE or 1x800G traffic. You can have any combination of the available 400GbE or 800G ports that must not exceed the total bandwidth of 12.8 Tbps. All the 400GbE ports support breakout operation.

Figure 1. Cisco 8711-32FH-M - Front View

1

32 QSFP56-DD 400GbE ports

Note

 

The top row is 16 x 800G QSFP-DD800 capable ports.

Cisco 8711-32FH-M Router Rear View

This table details the modules available in the rear of the chassis:

Table 1. Cisco 8711-32FH-M Router Rear View Details

Module Type

Description

Airflow Directions

Power Supply Modules

Two 2KW power modules that operate at 12 V capacity, providing 1+1 power redundancy and different AC/DC inputs capabilities.

  • Port-Side-Intake (PSI)

  • Port-Side-Exhaust (PSE)

Fan Modules

Six 40mm counter-rotating double-fan trays providing N+1 redundancy. The fan modules can be removed individually.

  • Port-Side-Intake (PSI)

  • Port-Side-Exhaust (PSE)


Note

The chassis does not come preloaded with fans and power supply units.
Figure 2. Cisco 8711-32FH-M - Rear View

1

Power Supply

2

Fans

Note

The fans and power modules illustrated have Port-Side-Intake (PSI) configuration.

Temperature and Physical Specifications

For temperature and physical specifications, refer to the Physical characteristics table in the Cisco 8700 Router Data Sheet.

Weight and Power Consumption

For weight and power consumption, refer to the Physical characteristics table in the Cisco 8700 Router Data Sheet.

Airflow Direction

The Cisco 8700 series routers support these configurations:

  • Post-Side Intake (PSI) configuration - the airflow through both the fan trays and power supplies is from the front-side to the rear-side. In PSI configuration, the power and fan modules are in Burgundy color.

  • Post-Side Exhaust (PSE) configuration - the airflow through both the fan trays and power supplies is from the rear-side to the front-side. In PSE configuration, the power and fan modules are in Cisco Safety Blue color.

Figure 3. Airflow Direction for Cisco 8711-32FH-M Router in PSI Configuration

Figure 4. Airflow Direction for Cisco 8711-32FH-M Router in PSE Configuration

Figure 5. Airflow Direction for Cisco 8712-MOD-M Router in PSI Configuration

Figure 6. Airflow Direction for Cisco 8712-MOD-M Router in PSE Configuration


Note

The airflow direction must be the same for all power supply and fan modules in the chassis.

Maximum Power Available to Router

The maximum power available to the router depends on the following factors:

  • the input power from the power source

  • the number of Power Supply Units (PSUs)

  • the output capabilities of the PSUs

  • the power redundancy mode

The following table lists the amount of power available for Cisco 8700 series routers from all available power trays.

Table 2. Maximum Power Available

Number of PSUs

Combined Mode (No redundancy)

1+1 Redundancy Mode (with Single Supply Loss)

1

2KW

—

2

4KW

2KW

Note

In Cisco 8700 series routers, when the AC power supply unit operates at the low line voltage range of 90VAC to 140VAC, the router does not support 1+1 redundancy mode. The low line voltage maximum power per AC power supply unit is 1KW. Thus, the total power of two AC power supply units at the low line voltage is 2KW. Therefore, you must have two AC power supply units for the router to operate at low line voltage.

Supported Optics


Note

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

https://tmgmatrix.cisco.com/