AN2218

7220R ARISTA | Alldatasheet

Document overview

• Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
• PDF pages: 33

Technical content

Datasheet sections

• 1.1 Scope
• 1.2 Receiving and Inspecting the Equipment
• 1.3 Installation Process
• 1.4 Safety Information
• 1.5 Obtaining Technical Assistance
• 1.6 Specifications
• 2.1 Site Selection
• 2.2 Tools and Parts Required for Installation
• 2.3 Electrostatic Discharge (ESD) Precautions
• 3.1 Desktop Mount
• 3.2 Two-post Rack Mount
• 3.2.1 Attaching Mounting Brackets to the Chassis
• 3.2.2 Inserting the Router into Two-post Rack
• 3.3 Four-post Rack Mount (Optional)
• 3.3.1 Attaching Mounting Brackets to the Chassis
• 3.3.2 Assembling the Rails into the Rack
• 3.3.3 Inserting the Router into Four-post Rack
• 5.1 Grounding the Router
• 5.2 Connecting Power Cables
• 5.3 Connecting Serial and Management Cables

Arista.com Arista Networks DOC-07121-01

Headquarters Support Sales

5453 Great America Parkway

Santa Clara, CA 95054 USA +1-866-476-0000 +1-408-547-5501 +1-866-497-0000 www.arista.com/en/ support@arista.com sales@arista.com © Copyright 2024 Arista Networks, Inc. All rights reserved. The information contained herein is subject to change without notice. The trademarks, logos, and service marks ("Marks") displayed in this documentation are the property of Arista Networks in the United States and other countries. Use of the Marks is subject to the Arista Networks Terms of Use Policy, available at www.arista.com/en/terms-of-use. Use of marks belonging to other parties is for informational purposes only.

This guide is intended for network professionals who need to install the Arista 7220R Series Enterprise WAN Router. The following topics are covered in this section:

• Scope
• Receiving and Inspecting the Equipment
• Installation Process
• Safety Information
• Obtaining Technical Assistance
• Specifications

1.1 Scope

This section lists the routers that are described in this guide:

• Arista 7220R Enterprise WAN Router CAUTION : Only technically qualified or trained personnel should install, service, or replace this equipment. Seul le personnel techniquement qualifié doit installer, service, ou remplacer cet équipement.

1.2 Receiving and Inspecting the Equipment

Upon receiving the router, inspect the packaging and record if there is any external damage. Retain the packing material if you suspect any part of the shipment is damaged; the carrier might need the packing material to inspect. Unpack the kit carefully. Do not discard any accessories that may have been packed in the same box as the router. Inspect the packing list and confirm that you received all the items listed. Refer to Parts List to verify that all components are included in the kit.

1.3 Installation Process

This section describes the steps required to install the router. 1. Select the installation site. (Site Selection) 2. Assemble the installation tools listed. (Tools and Parts Required for Installation) 3. Attach the mounting accessories and install the router. (Rack Mounting the Router) 4. Connect the router to the power source, console cables, and management network. (Cable the Router) 5. Configure the router. (Configuring the Router)

1.4 Safety Information

Refer to the Arista Networks document Safety Information and Translated Safety Warnings available at https://www.arista.com/en/support/product-documentation. Important: Class 1 laser product: This product has provisions to install Class 1 laser transceivers which provide optical coupling to the communication network. Once a Class 1 laser product is installed, the equipment is a Class 1 laser product (Appareil à Laser de Classe 1). The customer is responsible for selecting and installing the Class 1 laser transceiver and for ensuring that the Class 1 AEL (allowable emission limit) per EN/IEC 60825, CSA E60825-1, and Code of Federal Regulations 21 CFR 1040 is not exceeded after the laser transceiver has been installed. Do not install laser products whose class rating is greater than 1. Refer to all safety instructions that accompany the transceiver prior to installation. Only Class 1 laser devices certified for use in the country of installation by the cognizant agencies are to be utilized in this product. The ultimate disposal of this product should be in accordance with all applicable laws and regulations. Produit laser de classe 1: Ce produit a des dispositions pour installer des émetteurs-récepteurs de laser de classe 1 qui offre de couplage au réseau de communication optique. Une fois un produit laser de classe 1 est installé, l'équipement est un produit laser de classe 1 (Appareil à laser de Classe 1). Le client est responsable pour sélectionner et installer l'émetteur/récepteur de laser de classe 1 et pour assurer que la classe 1 AEL (limite d'émission admissible) par EN/IEC 6-825, CSA E60825-1, et Code des règlements fédéraux 21 CFR 1040 ne soit pas dépassée après avoir installé l'émetteur/ récepteur de laser. Ne pas installer des appareils à laser dont la cote de classe est supérieure à 1.Voir toutes les consignes de sécurité qui ont accompagné l'émetteur-récepteur avant l'installation. Seuls appareils laser de classe 1 certifiés pour une utilisation dans le pays d’installation par l’organisme compétent doivent être utilisées dans ce produit. Important: DO NOT open the router case. There are NO user-serviceable parts inside. N’ouvrez PAS le boîtier du routeur. Il n’y a AUCUNE pièce réparable par l’utilisateur à l’intérieur.

1.5 Obtaining Technical Assistance

Any customer, partner, reseller, or distributor holding a valid Arista Service Contract can obtain technical support in any of the following ways:

• Email: support@arista.com Include a detailed description of the problem with the "show tech-support" output.
• Web: https://www.arista.com/en/support A support case may be created through the support portal on our website. You may also download the most current software and documentation, and view FAQs, Knowledge Base articles, Security Advisories, and Field Notices.
• Phone: +1 866-476-0000 or +1 408-547-5502

1.6 Specifications

This section lists the specifications of the Arista 7220R Series Enterprise WAN Routers.

Table 1: Dimensions and Weights Router Size (W x H x D) Weight AWE-7220RP-5TH-2S-F 17.3 x 1.7 x 11 inches (440 x 43.18 x 279.4 mm) 8.82 lbs (4.0 kg) Table 2: Operating and Storage Temperature Router Operating Temperature Storage Temperature Operating AltitudeRelative Humidity AWE-7220RP-5TH-2S-F 32° to 104°F (0° to 40°C) -4° to 158°F (-20° to 70°C) 0 to 10,000 feet (0 to 3048 meters) 5 to 95% (non-condensing) Table 3: Power Input Router Power Source Input Power Rating AWE-7220RP-5TH-2S-F AC Power 100-240V, 6A Max, 50/60 Hz Table 4: Power Draw Router Power Draw (Typical/Maximum) Supported Power Supply AWE-7220RP-5TH-2S-F 200W/360W Internal open frame PSU Table 5: System Configurations Router Airflow Power Supply Fan Fan Type AWE-7220RP-5TH-2S-F Front to rear 1 2 Fixed/built-in

This section describes the initial setup and preparation for installing the Arista 7220R Series Enterprise WAN routers. The following topics are covered in this section:

• Site Selection
• Tools and Parts Required for Installation
• Electrostatic Discharge (ESD) Precautions

2.1 Site Selection

The following criteria should be considered when selecting a site to install the router:

• Temperature and Ventilation: For proper ventilation, install the router with ample airflow to the front and back of the router. Important: To prevent the device from overheating, do not operate it in an area where the ambient temperature exceeds 104°F (40°C). Pour empêcher l’interrupteur de surchauffe, ne pas utiliser il dans une zone où la température ambiante est supérieure à 104°F (40°C).
• Airflow Orientation: The fan vents determine the airflow direction through front to rear of the router. Figure 2-1: Airflow Direction
• Rack Space: Install the router in a rack or cabinet. The router height is 1.74". Check for the required rack space before installing the router in a two-post or four-post rack. When mounting the router in a partially filled rack, load the rack from bottom to top, with the heaviest equipment at the bottom. Load the router at the bottom if it is the only item in the rack.

• Power Requirements: Power requirements vary by each device. Refer to Specifications for information regarding your specific device. Important: The power supply plug-socket must be always accessible as it provides the primary method of disconnecting power from the system. La combinaison de la puissance-prise d’entrée doit être accessible en tout temps; Il fournit le principal moyen de coupure d’alimentation du système. Important: All power connections must be removed to de-energize the device. Toutes les connexions d’alimentation doivent être enlevées pour hors tension l’appareil. Refer to the Cable the Router section for power cable requirements.
• Other Requirements: Select a site where liquids or objects cannot fall onto the equipment and foreign objects are not drawn into the ventilation holes. Verify that the following guidelines are met:
• Clearance areas to the front and rear panels allow for unrestricted cabling.
• All front and rear panel indicators can be easily read.
• Power cord can reach from the power outlet to the connector on the rear panel.

2.2 Tools and Parts Required for Installation

Each router has an accessory kit containing parts that are required to install the router. In addition to the accessory kit, the following tools are required to install the router: Four-post Rack

• #1 and #3 Phillips head screwdrivers (this may differ based on supplied accessories)
• Screws or rack-mounting nuts and bolts Two-post Rack
• #1 and #3 Phillips head screwdrivers (this may differ based on supplied accessories)
• Screws or rack-mounting nuts and bolts

2.3 Electrostatic Discharge (ESD) Precautions

Observe these guidelines to avoid ESD damage when installing or servicing the router. Important: DO NOT open the case of the router. There are NO user-serviceable parts inside. N’ouvrez PAS le boîtier du routeur. Il n’y a AUCUNE pièce réparable par l’utilisateur à l’intérieur.

• Assemble or disassemble the equipment only in a static-free work area.
• Use a conductive work surface (such as an anti-static mat) to dissipate static charge.
• Wear a conductive wrist strap to dissipate static charge accumulation.
• Minimize handling of assemblies and components.
• Remove all plastic, foam, vinyl, paper, and other static-generating materials from the work area.
• Use tools that do not create ESD.

This section provides the instructions to mount the router in different ways. The following topics are covered in this section:

• Desktop Mount
• Two-post Rack Mount
• Four-post Rack Mount (Optional)

3.1 Desktop Mount

This section provides instructions to mount the router on the desktop or any flat surface. Figure 3-1: Attaching Rubber Feet

1 Rubber feet

1. Peel the rubber feet from the master sheet provided in the accessory kit. 2. Attach the adhesive rubber feet to the four corners at the bottom of the router. 3. Place the router on the desktop or any flat surface with a connecting power supply. The rubber feet prevents the router from sliding from the table surface.

3.2 Two-post Rack Mount

This section provides instructions for mounting the router in a two-post rack. To mount the router onto a two-post rack, assemble the mounting brackets to the chassis, then attach the brackets to the rack posts. Two-post accessory kits include the following two-post mounting parts. Two Three-hole Mounting Brackets Each chassis has attachment pins that align with bracket holes. Pin orientation is symmetric and equidistant, supporting bracket placements where the flange is flush with the front panel, flush with the rear panel, or not flush with either panel. Each bracket hole includes a critical opening for placing the bracket flush with the chassis and then locking it into place. Important: Attachment pins must engage all three upper bracket holes. Goupilles de fixation doivent être bloquer tous les trois trous de la bride supérieure. To mount the router in a two-post rack, proceed to the following topics:

• Attaching Mounting Brackets to the Chassis
• Inserting the Router into Two-post Rack

3.2.1 Attaching Mounting Brackets to the Chassis

This section describes the steps to attach mounting brackets to the router chassis. The following figure displays the bracket alignment for mounting the router into a two-post rack. Figure 3-2: Bracket Mount Configuration for Two-post Rack Mount (Example) Figure 3-3: Aligning the Mounting Brackets

1 Bracket clip installation (left side)2 Front mount

3 Bracket clip installation (left side)4 Flat head screws

1. Align the mounting brackets with the attachment pins to obtain the desired mounting position. 2. Place the bracket flush on the chassis with attachment pins protruding through critical openings. 3. Slide the bracket toward the front flange until the bracket clip locks with an audible click. The following figure shows the correct bracket attachment for a front mount. Figure 3-4: Attaching the Mounting Brackets to the Chassis

1 Align the mounting brackets with the

attachment pins to obtain the desired mounting position.

4 Bracket clip (attached)

2 Place the bracket flush on the chassis

with attachment pins protruding through critical openings.

5 Bracket clip (aligned)

3 Slide the bracket toward the front flange

until the bracket clip locks with an audible click. To remove the mounting bracket from the chassis, lift the front edge of the mounting bracket clip with a flat-head screwdriver and slide the bracket away from the front flange (opposite from the installation direction).

3.2.2 Inserting the Router into Two-post Rack

This section describes the steps to insert the router into the rack. 1. Lift the chassis, with the brackets attached, into the two-post rack. 2. Position the flanges against rack posts. 3. Select mounting screws that fit your equipment rack.

1. Attach the bracket flanges to the rack posts. Figure 3-5: Inserting the Router into the Rack

1 Attaching chassis securely to rack with the screws

2 Aligning the bracket with the rack

3.3 Four-post Rack Mount (Optional)

This section provides instructions for mounting the router in a four-post rack. The router is mounted onto a four-post rack by assembling two rails onto the rear posts, sliding the router onto the rails, and securing the router to the front posts. The installation kit provides the following four-post mounting parts:

• Two six-hole mounting brackets
• Two rail rods
• Two rail slides Each chassis side has attachment pins that align with bracket holes. Pin orientation is symmetric and equidistant, supporting bracket placements where the flange is flush with the front panel, flush with the rear panel, or not flush with either panel. Each bracket hole includes a critical opening for placing the bracket flush with the chassis and then locking it into place. Important: Attachment pins must engage at least five of the six bracket holes. Goupilles de fixation doivent être lock au moins cinq des trous du six support.

The following figure displays proper bracket mount configuration examples for a four-post mount: Figure 3-6: Bracket Mount Configuration for Four-post Rack Mount (Example) To mount the router in a four-post rack, proceed to the following topics:

• Attaching Mounting Brackets to the Chassis
• Assembling the Rails into the Rack
• Inserting the Router into Four-post Rack

3.3.1 Attaching Mounting Brackets to the Chassis

This section describes the steps to attach the mounting brackets to the chassis. The following figure displays the front bracket alignment for mounting the router into a four-post rack. Figure 3-7: Attaching the Mounting Brackets to the Router Chassis

1 Mounting bracket (left) 3 Mounting bracket (right)

2 Front mount Flat head screws

Figure 3-8: Aligning the Rack Plugs to the Bracket Clip

1 Bracket clip before it is locked in the

specified place.

2 Bracket clip after it is locked in the

specified place. 1. Align the mounting brackets with the attachment pins to obtain the desired mounting position. 2. Place the bracket flush to the chassis with the attachment pins protruding through the critical openings. 3. Slide the bracket towards the front flange until the bracket clip locks with an audible click. To remove the mounting bracket from the chassis, lift the front edge of the mounting bracket clip with a flat-head screwdriver and slide the bracket away from the front flange (opposite from the installation direction).

3.3.2 Assembling the Rails into the Rack

This section describes the steps to attach the mounting brackets to the chassis. Rail rods and rail slides assemble into identical rails. Each rail connects a front post to a rear post. When the rails are installed, the router slides through the rails into the rack. Figure 3-9: Assembling the Rails

1 Rail slide 3 Rack plugs

2 Rail rod 4 Rail (assembled)

1. Slide a rail rod into a rail slide, and assemble it with the rail clip by an audible click. The rail clip prevents the extension of the rail beyond the maximum supported distance between the front and rear rack posts.

1. Attach the rail to the rack post using the screws and rack plugs in the dedicated slots. Figure 3-10: Attaching the Rails into Four-post Rack

1 Rack plugs (rear) 3 Rack plugs (front)

2 Screw (rear) 4 Screw (front)

1. Adjust the rail slide of the rail to the front post by extending the rail past the post, then contracting the rail while guiding the rack plugs into the post. Note: Ensure the rails are on the same horizontal level.

3.3.3 Inserting the Router into Four-post Rack

Once the rails are installed, the router slides into the rack. Each bracket includes a thumb screw that attaches the router to the rail.

1. Lift the router and insert into the four-post rack by sliding the mounting brackets through the rails. Figure 3-11: Inserting the Router onto the Rails

1 Rail rod 3 Rail slide

2 Front mount 4 Rack plug

1. Slide the router through the rails, towards the rear posts, until the mounting bracket flanges are intact with the rail attached to the rack posts. 3. Attach the bracket flanges to the rack post using the quick-release thumb screws supplied with the brackets. After completing the four-post rack mount, proceed to Cable the Router section.

This section describes the front-panel LED status indicators. Table 6: LED Status Indicators LED Name LED State LED Status Off No power or in the midst of 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. System Status LED Amber The system is malfunctioning. The system is overheating or temperature sensors have been recorded passing the software-defined critical threshold. The router will automatically execute a reboot/ power cycle. Off (default) The system is not connected to CloudVision. Green The system is connected to CloudVision. Cloud Connect Status LED Amber Problem connecting to CloudVision. Green All fan vents are operating normally.Fan Status LED Amber Single fan vent is malfunctioning. Off The power supply unit is not available. Green The power supply unit is functional. Power Supply Status LED Amber The power supply unit has a fault.

The following topics are covered in this section:

• Grounding the Router
• Connecting Power Cables
• Connecting Serial and Management Cables

5.1 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 5-1: Protective Bonding Pad Sockets

1 Screw mounting holes

2 Lug

3 Screw

Figure 5-2: 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 on the rack (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 of the router. 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.

5.2 Connecting Power Cables

To use power cords outside of the United States, they must be ordered separately. Ensure that the power cord is compliant with local and national electrical codes. The router accommodates one power supply unit (PSU). Rear Panel displays the location of the power supply unit. To power down the router, remove all the power cords from the power supply unit. 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.

5.3 Connecting Serial and Management Cables

The accessory kit includes the following cables:

• RJ45 to DB9 serial adapter cable
• RJ45 Ethernet cable Table 7: RJ45 to DB9 Connections lists the pin connections of the RJ45 to DB9 adapter cable.

Table 7: 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 10/100/1000 management network with 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.

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 has no 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 admin and other password-protected usernames. The manual configuration procedure described below cancels ZTP mode, logs into the router, assigns a password to 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

1. 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 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.

This section lists the default and optional installation parts available in the accessory kit. Each router comes with an accessory kit containing the necessary parts required to install the router. The following accessories are available along with the router: Figure 7-1: Two-post Rack Mount Kit

1 Mounting bracket (left)

2 Mounting bracket (right)

3 Flat head screws

• Rubbet feet
• Cables
• RJ45 Ethernet cable
• Console cable
• Power cable (country-specific, included if specified before purchase) Table 8: SKU and 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.

This section describes the front panel of the following router:

• 7220R Enterprise WAN Router 8.1 7220R Enterprise WAN Router The Arista 7220R Enterprise WAN router front panel includes the following key components: Figure 8-1: 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

The section describes the rear panel of the following router.

• 7220R Enterprise WAN Router 9.1 7220R Enterprise WAN Router The Arista 7220R Enterprise WAN router rear panel includes the following key components: Figure 9-1: Rear Panel

1 Power supply 1 (PS1) 4 Fan 2

2 Fan 1 5 Kensington lock

3 Functional grounding point

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
• Interface Capabilities
• Speed Configuration
• Show Commands for Speed and Auto-negotiation Capabilities
• Supported Transceivers Hardware Description Figure 10-1: 7220R Enterprise WAN Router Front Panel

1 System status LEDs 5 1x 1G BASE-T port

3 Reset button 7 2x 10G SFP+ ports

4 4x 1GBASE-T POE++ ports 8 RJ45 Console port The Arista AWE-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 such as 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 satisfied 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 speedspeed-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.

Interface Configuration of the Router 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 Speed Type Flags Encapsulation Et1 connected 1 full 1G 1000BASE-T Et2 connected routed full 1G 1000BASE-T Et3 connected routed full 1G 1000BASE-T Et4 connected routed full 1G 1000BASE-T Et5 connected routed full 1G 1000BASE-T Et6 connected routed full 10G 10GBASE-SR Et7 connected routed full 10G 10GBASE-SR Use the following show command to display why an interface is error-disabled: Arista(config)#show interfaces ET1 status errdisabled Port Name Status Reason Et1 errdisabled 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.

This section lists the Regulatory Model Number (RMN) of the routers described in this document. Table 9: Regulatory Model Number (RMN) SKU Regulatory Model Number (RMN) AWE-7220RP-5TH-2S-F AN2218

This appendix provides Taiwan RoHS information for the routers described in this guide. 台灣 RoHS 相關資訊請參考下列網址: https://www.arista.com/assets/data/pdf/AristaBSMIRoHS.pdf.

Safety Instructions (Hebrew)