cisco ASR 920 Series Aggregation Services Routers Instruction Manual

cisco ASR 920 Series Aggregation Services Routers

Routers Overview

• The Cisco ASR 920 Series Aggregation Services Routers are a family of fixed-configuration routers that enables Service Providers to provide business, residential, and mobile access services to their users. It is the Carrier Ethernet access platform providing Ethernet services.
• The Cisco ASR 920 routers complement and extend Cisco’s current and planned Carrier Ethernet routing portfolio providing a cost optimized, and extended temperature range access platform.
• The Cisco ASR 920 routers do not have high availability features.
• The Cisco ASR 920-10SZ-PD and Cisco ASR-920-8S4Z-PD routers are designed for deployment in an environment protected from rain and direct sunlight.
• Cisco ASR 920-10SZ-PD and Cisco ASR-920-8S4Z-PD Routers Feature

Routers Feature

The following figure shows the Cisco ASR 920-10SZ-PD Router

Effective July 2018, the Cisco ASR 920-10SZ-PD front panel and case are remodeled. All installation procedures, however, remain the same. The following figure shows the remodeled Cisco ASR 920-10SZ-PD and the Cisco ASR-920-8S4Z-PD router.
Figure 2: Cisco ASR 920-10SZ-PD Router – Remodeled and Cisco ASR-920-8S4Z-P

The Cisco ASR 920-10SZ-PD Router has the following:

• 10×1 Gigabit Ethernet ports and 2×10 Gigabit Ethernet ports for an uplink
  1 GE Port| 10 GE Port| Type of 1 GE Port| Type of 10 GE Port
  ---|---|---|---
  10| 2| 10x1G (2 Copper Ports + 8x1G SFP)| Built-in 2 SFP+ (Dual Rate)

The Cisco ASR-920-8S4Z-PD Router has the following:

• 4×10 Gigabit Ethernet ports and 8×1 Gigabit Ethernet ports for an uplink
  1 GE Port| 10 GE Port| Type of 1 GE Port| Type of 10 GE Port
  ---|---|---|---
  8| 4| 8x1G (2 Copper Ports + 6x1G SFP)| Built-in 4 SFP+ (Dual Rate)

GigabitEthernet Copper Ports

Fixed copper GigabitEthernet (GE) interfaces are provided through standard RJ-45 connectors. These ports support the following features:

• Standard 10/100/1000Base-T/TX operation with forced or auto-negotiation for speed and duplex.
• Automatic crossover (auto-MDIX) for straight-through and crossover connections.
• Pause flow control as defined by the 802.3x standard.
• Frame size of 9216 bytes.
• Synchronous ENET operation that provides its recovered receive clock as an input clock source for the SETS as well as uses the system-wide reference clock to derive its transmit clock

GE SFP Ports

The GE SFP ports support the following features:

• 100Base-FX and 1000Base-X SFP modules.
• Digital optical monitoring as specified by the SFP.
• Any mix of SFPs is supported unless specifically noted.
• Pause flow control as defined by the 802.3x standard.
• Frame size of 9216 bytes.
• Synchronous ENET operation that provides its recovered receive clock as an input clock source for the SETS as well as uses the system-wide reference clock to derive its transmit clock

Note Copper SFPs do not support synchronous ENET operations

SFP+ Ports

The SFP+ ports support the following features:

• Any mix of SFPs is supported unless specifically noted.
• Pause flow control as defined by the 802.3x standard.
• Frame size of 9216 bytes.

The following figures describe the front panel for the Cisco ASR 920-10SZ-PD Router

Effective July 2018, the Cisco ASR 920-10SZ-PD front panel and case are remodeled. All installation procedures, however, remain the same. The following figure shows the remodeled Cisco ASR 920-10SZ-PD and the Cisco ASR-920-8S4Z-PD router.
Figure 4: Front Panel of Cisco ASR 920-10SZ-PD Router – Remodeled

For more information on the router specifications, see Cisco ASR 920 Series Aggregation Services Routers Data Sheet

External Interfaces

The Cisco ASR 920 routers have these external physical interfaces on the front panel:

Network Interfaces

The network interfaces are provided through fixed ports.

• GE SFP ports —supports 100/1000 modes

Note Ports 8 and 9 do not support 100M and copper SFPs.

• GE Copper RJ-45 ports —supports 10/100/1000 operation
• Dual rate ports —supports 1G/10G mode depending on the SFP+/SFP in the network interface slot

External Alarm Inputs

The Cisco ASR 920 router supports four dry contact alarm inputs through an RJ-45 jack on the front panel.
Normally Open— indicates that no current flows through the alarm circuit and the alarm is generated when the current is flowing.

Management Interfaces

The Cisco ASR 920 routers have the following management interfaces:

Management ENET Port

A single management copper ENET port supporting 10/100/1000Base-T operation is provided on the front panel. It uses a standard RJ-45 jack.

Note This is not a data plane port
Note This interface does not support Synchronous Ethernet Clocking.

TIA/EIA RS232 Console Port

• The RS232 console port provides transmission (Tx), reception (Rx), and ground (Gnd).
• The RS232 console port is enabled only through the Cisco-designed cable adapter USB type A cable to RJ-45 adapter cable. To use this port, disable the flow control on the terminal.

USB Console

A single USB 2.0 Type-A receptacle is provided on the front panel of the Cisco ASR 920 router for providingconsole access to ROMMON, Cisco IOS-XE and diagnostics. While it uses the Type-A connector, it operates as a USB peripheral only for connection to an external host computer. This interface requires the use of a Type-A (male) to Type-A (male) connector instead of a standard USB cable.

Note

Use of the USB console is mutually exclusive of the RS232 console port. This interface requires the use of a Type-A (male) to Type-A (male) USB cable

USB Mass Storage

A single USB 2.0 Type-A receptacle is provided on the front panel of the Cisco ASR 920 router for inserting external USB mass storage devices, such as standard USB flash drives. This interface is used to load images, load or store configurations, write logs, and so on. It supports operation up to 12Mbps. Maximum memory supported in ROMmon is 8GB and in Cisco IOS is 16GB.

Zero Touch Provisioning (ZTP) Button

The ZTP button on the front panel initiates the ZTP process on a short press of less than eight seconds. Pressing the ZTP button for more than eight seconds causes a board reset.
For more information on ZTP, see Power and STAT LED section

RS232 Auxiliary Console Port
The RS232 Aux console port provides transmission (Tx), reception (Rx), and ground (Gnd).

The RS232 Aux console port is enabled only through the Cisco-designed cable adapter from USB type A cable to RJ-45 adapter cable.
This is a debug-only port. it is recommended that this port be used by field service engineers only

Power Supply

The Cisco ASR 920-10SZ-PD and ASR-920-8S4Z-PD Routers support DC power supplies in a 1+1 redundant configuration

Note The power supply units are built-in and are not modular

Note If a surge of more than 500 V is expected, add an appropriate external surge protective device
Caution In case of power supply failure, it is highly recommended to let a Cisco technician replace the router

LED Indicators
This section describes the different types of LEDs and their behavior.

PWR and STAT LEDs
The PWR and STAT LEDs are available on the front panel. These LEDs provide power on the board (PWR) and overall router health (STAT) status. During power up state, these LEDs provide booting status and report errors.

The digital code signing functionality validates the integrity and authenticity of the ROMMON image before booting it.

PWR LED State| STAT LED

state

| Indication| Comment
---|---|---|---
Amber| Off| Power in the system is all right and FPGA configuration is taking place.| Permanent Amber/Off indicates FPGA configuration failure.
Amber| Red| FPGA Image Validation Error.| System is in unresponsive state.
Flashing Amber and Green alternatively| Amber| Upgrade FPGA image error, continuing with Golden FPGA image.| —
Flashing Amber and Green alternatively| Off| FPGA configuration successful and Digital code signing successfully validated FPGA image. Digital code signing passed the control to Microloader to boot ROMMON.| —
Flashing Amber and Green alternatively| Red| Digital code signing reported failure in ROMMON image validation.| —
Green| Flashing Amber| ZTP process has begun.

Note **** A short press of the ZTP button triggers the provisioning. A longer press of more than eight seconds, resets the board.

| Both LEDs turn Green once provisioning is complete.
Green| Off| IOS-XE image is booting.|
Green| Green| Successfully booted and system is operating normally.| —
Green| Amber| A minor alarm or synchronization is in Holdover or free-running mode| —
Green| Red| A major or critical alarm (high temperature reported for any sensor).| —

CPU Management Port LEDs
The LED for the 10/100/1000 Management port is integrated on the connector itself. There are two LEDs in the connector—the LED on the left indicates the Link/Activity status and the LED on the right indicates the duplex status of the link.

SFP LEDs
Each SFP port has an LED indicator.
Table 4: SFP Port LED Indication

SFP+ LEDs
Each SFP+ port has an LED indicator.

RJ-45 LEDs
Each RJ-45 port has two LED indicators. Left LED indicates the Link status; right LED indicates the status of the duplex LED

System–Interface LED Behavior

Event| 1G Copper Port LEDs (Link/Duplex)| 1G SFP Port LEDs
---|---|---
ROMMON| Off/Off| Off
IOS Shut| Off/Off| Off
IOS No shut (cable disconnect)| Yellow/Off| Yellow
IOS No shut (cable connect) (media-type RJ-45)| Green/Green| Off
IOS No shut (cable connect) (media-type SFP)| Off/Off| Green
IOS No shut (cable connect) (media-type auto)| Off/Off| Green
Event| Dual Rate (1G/10G) Port LEDs| Management Port LEDs (Link/Duplex)
---|---|---
ROMMON (cable connect)| Off| Green/Green (1000 Mbps, Full Duplex) Amber/Green (100 Mbps, Full Duplex)

Orange/Green (10 Mbps, Full Duplex)

ROMMON (cable connect)| Off| Off/Off
IOS Shut| Off| Off/Off
IOS No shut (cable disconnect)| Yellow| Off/Off
IOS No shut (cable connect)| Green| Green/Green in 1G mode Amber/Green in 100M mode

Orange/Green in 10M mode

Online Insertion and Removal

The Cisco ASR 920 router supports the following OIR operations:

• When an SFP/SFP+ is removed, there is no effect on traffic flowing on other ports.
• When an SFP/SFP+ is installed, the system initializes that port for operation in 1G/10G based on the license.
• Power supplies are redundant and non-modular. When both power supplies are active, they may or may not share the load equally. When a power supply is not working or the input cable is removed, the other power supply takes the entire load without disruption. If the power supply needs repair, the whole system must be replaced.

Licensing the Cisco ASR 920 Router

The Cisco ASR 920 Series Routers support the following types of licenses:

• Port Licensing —Port Upgrade license is available as a “Pay as you Grow” model.
• 1G upgrade license
• 10G upgrade license
• Bulk licensing—Bulk port licensing allows you to enable all the ports with a single license.
• Timing license (1588)—Timing license is required if the router is used as a master clock.
• Advanced Metro IP Access
• Metro IP Access
• Metro Access (default)

The following methods are used to activate the above licenses:

• Cisco Software Licensing —The Cisco Software License Activation feature is a set of processes and components to activate Cisco software feature sets by obtaining and validating fee-based Cisco software licenses

Licenses generated by the Cisco Software Licensing are tied to the UDI of the chassis and a corresponding watchtower device certificate (WDC) is stored in the system.

• Cisco Smart Licensing— Smart Licensing is usage-based licensing where devices register with the Cisco Secure server.

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