Safety Instructions (Hebrew)

 


Regulatory Model Numbers

This section lists the Regulatory Model Number (RMN) of the routers described in this document.

Table 1. Regulatory Model Number (RMN)
SKU Regulatory Model Number (RMN)
AWE-7220RP-5TH-2S-F AN2218

Interface Configuration of the Router

This section describes the front panel ports of the Arista 7220R Enterprise WAN router from a physical layer perspective. This section includes the following topics:

 

Hardware Description

Figure 1. Front Panel

1 System status LEDs 5 1x 1G BASE-T port
2 USB port Type-A 6 RJ45 Ethernet management port
3 Reset button 7 2x 10G SFP+ ports
4 4x 1GBASE-T POE++ ports 8 RJ45 Console port

The Arista 7220R Enterprise WAN routing system provides up to 1Gbps IPsec encrypted throughput and 5Gbps IP routing with 4x 1GBASE-T POE++ ports, 1x 1G BASE-T port, and 2x 10G SFP+ ports

Label Port Number Port Type EOS Interface
1

1, 2, 3, 4

 RJ45 with POE ++ (60W) Et1, Et2, Et3, Et4
2

5

 RJ45 Et5
3

6, 7

 SFP+ Et6, Et7

 

Interface Capabilities

This section describes interface capabilities like speed and Forward Error Correction (FEC). For additional information, see the EOS User Guide. The capabilities are displayed with the following command:

show interfaces <INTF> hardware default

The speed/auto-negotiation depends on the MAC/PHY capabilities, the front panel connector, and the type of transceiver inserted. The default capabilities of the Arista 7220R Enterprise WAN Router are as follows:

Ports Speed/ Auto-negotiation
RJ45 (Et1-Et4) 1G/100M Full duplex/100M Half duplex/10M Full duplex/10M Half duplex

autoneg clause 28
Et5 1G/100M full duplex/10M full duplex

autoneg clause 28
SFP (Et6-Et7) 1G/10G full duplex

(Auto-negotiation 1G is not supported)

When a transceiver is inserted, EOS recognizes the transceiver type. To see which types of transceivers are supported, refer to the Supported Transceivers. EOS decides the capable speed/auto-negotiation supported by the hardware and the modules. To view the show commands and example outputs, refer to Show Commands for Speed and Auto-negotiation Capabilities.

When there is no speed configuration on the interface, EOS applies the default speed. On an RJ45 port, the default configuration is auto-negotiation enabled with 10G. On an SFP+ port, the default configuration is auto-negotiation disabled with 10G.

 

Speed Configuration

This section describes the configuration of interface speed and auto-negotiation.

Interface speed and auto-negotiation are configured using the speed-lane-token commands as shown in the following examples:

To configure 10G speed with auto-negotiation disabled:

Arista(config-if-Et1)#speed 10g

To configure 1G speed with auto-negotiation disabled:

Arista(config-if-Et1)#speed 1g

To configure 10G speed with auto-negotiation enabled:

Arista(config-if-Et5)#speed auto 10gfull

To configure 1G speed with auto-negotiation enabled:

Arista(config-if-Et1)#speed auto 1gfull

To remove speed configuration:

Arista(config-if-Et1)#no speed
Note: If the selected speed and auto-negotiation combination is unsupported (either based on the inserted transceiver or due to the interface capabilities), the interface is put into an error-disabled state with “speed-misconfigured” as the cause.

Use the following show command to check whether interfaces are connected, not connected, or error-disabled:

Arista(config)#show interface status
Port Name Status Vlan Duplex SpeedType Flags Encapsulation
Et1 connected1full 1G 1000BASE-T
Et2 connectedrouted full 1G 1000BASE-T
Et3 connectedrouted full 1G 1000BASE-T
Et4 connectedrouted full 1G 1000BASE-T
Et5 connectedrouted full 1G 1000BASE-T
Et6 connectedrouted full 10G10GBASE-SR
Et7 connectedrouted full 10G10GBASE-SR

 

Use the following show command to display why an interface is error-disabled:

Arista(config)#show interfaces ET1 status errdisabled 
PortName Status Reason
----------- ---------------- ------------ ------------------
Et1errdisabled speed-misconfigured

 

When a transceiver is in an error-disabled state due to a misconfigured speed, the following syslog message is logged:

bessd[4392]: %ETH-1-LINKMODEUNSUPPORTED: Unsupported link mode 100G/full for interface Ethernet1
Ebra: %ETH-4-ERRDISABLE: speed-misconfigured error detected on Ethernet1.

 

Show Commands for Speed and Auto-negotiation Capabilities

Supported speed and auto-negotiation are displayed by the following command when the transceiver is inserted:

show interfaces <INTERFACES> hardware

RJ45 port output:

Arista(config)#show interfaces Ethernet1 hardware Ethernet1
Model: AWE-7220RP-5TH-2S
Type: 1000BASE-T
Speed/duplex: 10M/half,10M/full,100M/half,100M/full,1G/full,auto(default)
Flowcontrol: rx-(off),tx-(off)
Autoneg CL28: 10M/half,10M/full,100M/half,100M/full,1G/full
Error correction: unsupported

SFP port output:

Arista(config)#show interfaces Ethernet6 hardware Ethernet6
Model: AWE-7220RP-5TH-2S
Type: 1000BASE-SX
Speed/duplex: 1G/full,auto(default)
Flowcontrol: rx-(off),tx-(off)
Error correction: unsupported

 

Supported Transceivers

The on-board SFP ports support a wide range of 1G and 10G pluggable transceivers.

  • 10GBASE-CR: 0.5m/1m/3m/5m

  • 10GBASE-SR(SRL)

  • 10GBASE-LR(LRL)

  • CAB-Q-4S-40G: 0.5m/1m/3m/5m

  • 10GBASE-AOC

  • 1000BASE-SX

  • 1000BASE-LX

For details about the different transceiver modules and cables, visit https://www.arista.com/en/products/transceivers-cables.

Rear Panel

The section describes the rear panel of the following router.

AWE-7220RP-5TH-2S-F

The Arista 7220R Enterprise WAN router rear panel includes the following key components:

Figure 1. Rear Panel



1 Power supply 1 (PS1) 4 Fan 2
2 Fan 1 5 Kensington lock
3 Functional grounding point    

Front Panel

This section describes the front panel of the following router:

AWE-7220RP-5TH-2S-F

The Arista 7220R Enterprise WAN router front panel includes the following key components:

Figure 1. Front Panel

1 System status LEDs 5 1x1GBASE-T port
2 USB port Type-A 6 RJ45 Ethernet management port
3 Reset button 7 2x10G SFP+ ports
4 4x1GBASE-T POE++ ports 8 RJ45 Console port

Parts List

This section lists the default and optional installation parts of the accessory kit. Each device has an accessory kit containing the necessary parts to install the router.

The following accessories are available along with the router:

Figure 1. Two-post Rack Mount Kit


1 Mounting bracket (left)
2 Mounting bracket (right)
3 Flat head screws
  • Rubber feet

  • RJ45 Ethernet cable

  • Console cable

  • Power cable (country-specific, included if specified before purchase)

 

Table 1. Product Description
SKU Product Description
AWE-7220RP-5TH-2S-F Arista 7220R, router up to 2Gbps, 4x 1GBASE-T POE++ ports, 1x 1GBASE-T port, 2x 10G SFP+ ports, front to rear air, 1x AC.

Configuring the Router

Arista routers ship from the factory in Zero Touch Provisioning (ZTP) mode. ZTP configures the router without user intervention by downloading a startup configuration file or a boot script from a location specified by a DHCP server.

To manually configure an Arista router, bypass ZTP. The initial configuration provides one username (admin) accessible only through the console port because it does not have a password.

When bypassing ZTP, access the router by logging in as admin, with no password, through the console port. Then you can configure a password for the admin and other password-protected usernames.

The manual configuration procedure described below cancels ZTP mode, logs into the router, assigns a password to the admin, assigns an IP address to the management port, and defines a default route to a network gateway.

As the router boots without a startup-config file, it displays the following through the console: 
The device is in Zero Touch Provisioning mode and is attempting to
download the startup-config from a remote system. The device will not
be fully functional until either a valid startup-config is downloaded
from a remote system or Zero Touch Provisioning is cancelled. To cancel
Zero Touch Provisioning, login as admin and type 'zerotouch cancel'
at the CLI.
localhost login:

 

  1. Connect the router to a power source (Cable the Router).
    Note: Arista fixed routers take approximately 5 to 10 minutes to boot completely.
  2. Connect the console port to a PC (Connecting Serial and Management Cables).
  3. Log into the router by typing admin at the login prompt. 
    localhost login:admin

     

  4. Cancel ZTP mode by typing zerotouch cancel.
    Important: This step initiates the router to reboot.
    localhost>zerotouch cancel

     

  5. After the router reboots, log into the router again by typing admin at the login prompt. 
    Arista EOS
localhost login:admin
Last login: Fri Mar 15 13:17:13 on console

     

  6. Enter global configuration mode. 
    localhost>enable localhost#config

     

  7. Assign a password to the admin username with the username secret command. In this example, the assigned password is "pxq123". 
    localhost(config)#username admin secret pxq123

     

  8. Configure a default route to the network gateway. In this example, the default route is 192.0.2.1. 
    localhost(config)#ip route 0.0.0.0/0 192.0.2.1

     

  9. Assign an IP address to an Ethernet management port. In this example, the IP address is 192.0.2.8/24. 
    localhost(config)#interface management 1/1
localhost(config-if-Ma1/1)#ip address 192.0.2.8/24

     

  10. Save the configuration by typing write memory or copy running-config startup-config. 
    localhost#copy running-config startup-config

     

  11. When the management-port IP address is configured, use the following command to access the router from a host using the address configured in Step 9. 
    ssh admin@192.0.2.8

    Refer to the Arista Networks User Manual for the complete router configuration information.

     

Cable the Router

The following topics are covered in this section:

Grounding the Router

This section provides instructions for grounding the router.

Note: Grounding cable and grounding lugs are not included with the router.

 

Note: The cable size should meet local and national installation requirements.

 

Figure 1. Protective Bonding Pad Sockets

1 Screw mounting holes
2 Lug
3 Screw
Figure 2. Lug Preparation
1 Insulated cable A 1/4″
2 Heat-shrink tubing B 1/2″
3 Lug C 5/8″
Note: Dimension B is the width of the lug (not visible on the right-angle lug).

 

CAUTION: The earth connection must not be removed unless all supply connections are disconnected.

 

  1. Ensure the rack is properly grounded and complies with ETSI EN 300 253.
  2. Ensure a good electrical connection to the grounding point (no paint or isolating surface treatment).
  3. Attach the solder terminal lug to an 18 AWG minimum grounding cable and connect it to the grounding point on the rear panel.
  4. Tighten the screw to secure the lug to the grounding point.
  5. Connect the other end of the cable to the nearby grounded surface.

Connecting Power Cables

Power cords must be ordered separately for use outside the United States. Ensure that the power cord is compliant with local and national electrical codes.

The router accommodates one power supply unit (PSU). The Rear Panel displays the location of the power supply unit. To power down the router, remove all the power cords from the PSU.

Important: Installation of this equipment must comply with local and national electrical codes. If necessary, consult with the appropriate regulatory agencies and inspection authorities to ensure compliance.

Installation de cet équipement doit être conformes aux codes électriques locaux et nationaux. Si nécessaire, consulter les organismes de réglementation appropriés et des autorités de contrôle pour assurer la conformité.

 

Important: Read all installation instructions before connecting the system to the power source.

Lire toutes les instructions d’installation avant de brancher le système à la source d’alimentation.

 

Important: This equipment must be grounded. Never defeat the ground conductor.

Cet équipement doit être mis à la terre. Ne jamais modifier le conducteur de terre.

 

Important: This unit requires overcurrent protection.

Cet appareil requiert une protection contre les surintensités.

 

Connecting Serial and Management Cables

The accessory kit includes the following cables:
  • RJ45 to DB9 serial adapter cable
  • RJ45 Ethernet cable

Table 1 - RJ45 to DB9 Connections lists the pin connections of the RJ45 to DB9 adapter cable.

Table 1. RJ45 to DB9 Connections
RJ45 DB9   RJ45 DB9
RTS 1 8 CTS   GND 5 5 GND
DTR 2 6 DSR   RXD 6 3 TXD
TXD 3 2 RXD   DSR 7 4 DTR
GND 4 5 GND   CTS 8 7 RTS
Connect the front or rear panel ports as follows:
  • Console (serial) port: Connect the router to the computer using the RJ45 to DB9 serial adapter cable. The router uses the following default settings:
    • 9600 baud
    • No flow control
    • One stop bit
    • No parity bits
    • 8 data bits
  • Ethernet management port: Connect to a 10/100/1000 management network with an RJ45 Ethernet cable.
  • USB port: The two USB ports (Type-A and Type-C) may be used for software or configuration updates.
    CAUTION: Excessive bending can damage the interface cables.

    Flexion excessive peut endommager les câbles d’interface.

Status Indicators

This section describes the front-panel LED status indicators.

Table 1. LED Status Indicators
LED Name LED State LED Status
System Status LED Off No power or amid a power cycle.
Blinking green (default) The system is powering up.
Green The system is operating in a normal initialization sequence.
Flashing Blue The indicator function is active.
Amber The system is malfunctioning. It is overheating, or temperature sensors have been recorded passing the software-defined critical threshold.

The router will automatically execute a reboot/power cycle.
Cloud Connect Status LED Off (default) The system is not connected to CloudVision.
Green The system is connected to CloudVision.
Amber Problem connecting to CloudVision.
Fan Status LED Green All fan vents are operating normally.
Amber The single fan vent is malfunctioning.
Power Supply Status LED Off The power supply unit is not available.
Green The power supply unit is functional.
Amber The power supply unit has a fault.