Arista O-235 User manual

Quick Start Guide
O-235 Access Point
Arista Networks
www.arista.com
DOC-04356-01

© Copyright 2020 Arista Networks, Inc. The information contained herein is subject to change without notice. Arista Networks
and the Arista logo are trademarks of Arista Networks, Inc in the United States and other countries. Other product or service
names may be trademarks or service marks of others.
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Chapter 1. About This Guide............................................................................................................3
Chapter 2. Package Content..............................................................................................................4
Chapter 3. Access Point Overview.....................................................................................................6
Front Panel..................................................................................................................................... 6
Side Panel.......................................................................................................................................7
Rear Panel...................................................................................................................................... 8
Chapter 4. Install the Access Point.................................................................................................11
Pole Mount the AP...................................................................................................................... 11
Power On the AP.........................................................................................................................16
Connect the AP to the Network.................................................................................................. 17
Connect the AP using PoE.................................................................................................. 17
Chapter 5. Access Point Troubleshooting....................................................................................... 19
Chapter 6. Appendix A: AP-Server Mutual Authentication........................................................20

Chapter 1. About This Guide
This installation guide explains how to deploy the O-235 access point (AP).
Important: Please read the EULA before installing O-235. You can download and read the
EULA from https://www.arista.com/en/support/product-documentation
Installation constitutes your acceptance of the terms and conditions of the EULA.
Intended Audience
This guide can be referred to by anyone who wants to install and configure the O-235 outdoor access
point.
Document Overview
This guide contains the following chapters:
•Package Content (page 4)
•O-235 Overview (page 6)
•Installing O-235 (page 11)
•Access Point Troubleshooting (page 19)
Note: All instances of the term 'server' in this document refer to the Wireless Manager, unless
the server name or type is explicitly stated.
Product and Documentation Updates
To receive important news on product updates, please visit our website at https://www.arista.com/
en/support/product-documentation. We continuously enhance our product documentation based on
customer feedback.
This equipment conforms to the requirements of the NCC.

Chapter 2. Package Content
The access point (AP) package must contain the components shown in the following figure.
Figure: Package Components
Table 1. Labels: Package Components
Label Description
1 O-235 Access Point
2 2 metal clamps for fixing the mounting bracket to the pole

O-235 | 2 - Package Content | 5
Label Description
3 Mounting bracket
4 4 steel bosses for fixing AP in the bracket
5 Philips screw to secure the AP to the bracket
6 Earthing screw fitted at the back of AP with dimension 6.8 ±0.2 mm
7 Philips #2 screwdriver to tighten the screw
8 Earthing screw - 2.6 ±0.2 mm
9 Earthing screw - 5.8 ±0.2 mm
10 Earthing screw thread - M4 × 0.5 mm
Important: The MAC address of the AP is printed on a label at the bottom of the product and
the packaging box. Note down the MAC address before mounting the AP.
If the package is not complete, please contact Arista Networks Technical Support Team at support-
[email protected] or return the package to the vendor or dealer where you purchased the product.

Chapter 3. Access Point Overview
The O-235 is a tri radio (4X4 5GHz, 2X2 2.4GHz, 2x2 Dual-band scan radio), Wi-Fi 6 access point.
This chapter provides an overview of the O-235 and describes the:
•Front Panel of the AP (page 6)
•Rear Panel of the AP (page 8)
•Side Panel of the AP (page 7)
Front Panel
The front panel of the O-235 has 6 LEDs that indicate the status of various device functions.
Figure: Front Panel LEDs
Table 2. Labels: Front Panel LEDs
Label Description
1 Power
2 2.4 GHz Radio
3 5 GHz Radio
4 Third Radio

O-235 | 3 - Access Point Overview | 7
Label Description
5 LAN1
6 LAN2
Power LED: The following table describes the Power LED states.
Table 3. Power LED States Description
Green Orange
Solid Running at full capability Running at reduced capability
Blinking Received IP address, but not connected to the server Did not receive an IP address
Reduced capability indicates that the AP is getting lower than the required maximum power from the
PoE+ switch, i.e., 802.3af instead of 802.3at.
LAN1 LED: ON when the corresponding interface is up.
LAN2 LED: ON when the corresponding interface is up and either wired guest or link aggregation is
configured.
Radio LEDs: ON when the corresponding radio is operational.
Side Panel
The side panel of the AP has a console port, a USB port, and a Reset pin.
Figure: Side Panel
Table 4. Labels: Side Panel

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Label Description
1 Reset
2 USB
3 Console
Port Description Connector
Type Speed/Protocol
Console Establish ‘config shell’ terminal session via serial
connection
RJ-45
•RS 232 Serial (115200
bits per second)
•Data bits:8; Stop bits: 1
•Parity: None
•Flow Control: None
USB USB 2.0 port USB Future Use
Reset Reset to factory default settings port. Hold down and power
cycle the device to reset.
Pinhole push
button N/A
When you reset the AP, the following settings are reset:
•Config shell password is reset to config.
•Server discovery value is erased and changed to the default,
redirector.online.spectraguard.net (primary) and wifi-security-server (secondary).
•All the VLAN configurations are lost.
•If a static IP is configured on the AP, the IP address is erased and DHCP mode is set. The
factory default IP address of the AP is 169.254.11.74.
Rear Panel
The rear panel of the AP has LAN/PoE+ connectors that enable you to connect the AP to a wired
LAN through a switch or a hub. The ports provide power to the AP by using the 802.3at standard.
Use an active wrench to open the LAN cap.
Figure: O-235 Rear Panel

O-235 | 3 - Access Point Overview | 9
Table 5. Labels: Ports
Label Description
1 LAN1 (PoE+)
2 LAN2
3 Width of the LAN cap is 29 mm
4 Wrench to open the LAN cap

O-235 | 3 - Access Point Overview | 10
Table 6. O-235 Port Details
Port/Button Description Connector Type Speed/Protocol
LAN1 5 Gigabit Ethernet with
802.3at compliant PoE IP67-rated, weatherproof RJ-45 100/1000 Mbps Ethernet, 1/2.5/5 Gbps Ethernet
LAN2 1 Gigabit Ethernet with
802.3at compliant PoE IP67-rated, weatherproof RJ-45 100/1000 Mbps Ethernet

Chapter 4. Install the Access Point
This chapter contains the stepwise procedure to install the access point (AP).
Zero-Configuration of O-235 as Access Point
Zero-configuration is supported under the following conditions:
•The device is in AP mode with background scanning on and no SSID configured.
•A DNS entry wifi-security-server is set up on all the DNS servers. This entry should point to
the IP address of the server. By default, the AP looks for the DNS entry wifi-security-server.
•The AP is on a subnet that is DHCP enabled.
Important: If the AP is on a network segment that is separated from the server by a firewall,
you must first open the port 3851 for bidirectional User Datagram Protocol (UDP) and Transport
Control Protocol (TCP) traffic on that firewall. This port number is assigned to Arista Networks.
Zero-configuration cannot work if multiple APs are set up to connect to multiple servers. In this
case, the APs must be configured manually. For details on how to configure an AP manually, see
the Access Point Configuration Guide on our website at https://www.arista.com/en/support/product-
documentation .
Take a configured AP; that is, ensure that a static IP is assigned to the AP or the settings have been
changed for DHCP. Before you install the AP in a hard-to-reach location, note the MAC address and
the IP address of the AP for later use. The MAC address is printed on a label at the bottom of the AP.
The steps to install the AP with no configuration (zero-configuration) are as follows:
1. Pole Mount the AP (page 11)
2. Power On the AP (page 16)
3. Connect the AP to the Network (page 17)
Pole Mount the AP
Use the mounting bracket and metal clamps to install the O-235 AP on a pole. Standard accessories
include the mounting bracket and two metal clamps.
To mount the AP:

O-235 | 4 - Install the Access Point | 12
1. Insert the two metal clamps into the bracket. You can insert the clams either in the horizontal
or vertical slots depending on the position the pole-mount bracket for use on a vertical or
horizontal pole.
2. Fix the bracket to a pole. You can position the pole-mount bracket for use on a vertical or
horizontal pole.

O-235 | 4 - Install the Access Point | 13
3. Fasten the two metal clamps into the slotted driver.

O-235 | 4 - Install the Access Point | 14
4. Mount the AP to the bracket.

O-235 | 4 - Install the Access Point | 15
5. Tighten the thumb screw using Philips# 2 screwdriver.
Table 7. Labels: Parts
Label Description
1 Use a Philips #2 screwdriver to fasten the screw.

O-235 | 4 - Install the Access Point | 16
Power On the AP
Plug one end of the Ethernet cable into the PoE+ switch or compatible PoE injector (a Single-port
High Power Midspan, 802.3at compliant, up to Gigabit PoE with 30W minimum power output)
and the other end into the LAN1 (PoE+) on the O-235. Make sure the PoE+ source you are using is
turned ON.
Earthing or Grounding: The AP must be properly grounded using a copper earthing wire (12 ~ 10
AWG) and a tin-plated lug as shown in the following image. The wire and the lug must be tightened
at the earthing screw on the AP.
Note: The O-235 APs are intended to be supplied with UL-listed PoE+ power source suitable for
use at 65 degree Celsius, and whose output meets LPS requirements or PS2, with a rating of 48V DC
(0.5A minimum).
The following table shows the dimension of the earthing screw and lug.
Item12345678
Tolerance ± 0.5 ± 0.5 ± 0.5 ± 0.5 ± 0.5 ± 0.2 ± 0.2 ± 0.2
Size 1.0 21.50 5.90 13.0 7.20 4.30 3.40 6.70

O-235 | 4 - Install the Access Point | 17
Connect the AP to the Network
To connect the access point (AP) to the network, perform the following steps:
1. Ensure that a DHCP server is available on the network to enable network configuration of the
AP.
2. Add the DNS entry, wifi-security-server, on all DNS servers. This entry must point to the IP
address of the server.
3. Ensure that DHCP is running on the subnet to which the AP is connected.
4. Check the LEDs on the AP to ensure that it is connected to the server.
5. Log on to the server using SSH and run the get sensor list command.
You will see a list of all Arista devices that are recognized by the server. Single Sign-On users
can go to the Monitor tab in CloudVision WiFi and check whether the device is visible under
the Monitor tab.
The AP is connected and operational.
Note: If zero configuration fails, the AP must be configured manually.
Important: If DHCP is not enabled on a subnet, the AP cannot connect to that subnet with zero-
configuration. If the DNS entry is not present on the DNS servers, or if you do not have the DHCP
server running on the subnet, you must manually configure the AP. For details on configuring an AP
manually, see the Access Point Configuration guide on our website at https://www.arista.com/en/
support/product-documentation .
Connect the AP using PoE
If you are using a PoE injector, make sure the data connection is plugged into a suitable switch port
with proper network connectivity.

O-235 | 4 - Install the Access Point | 18
The following table shows the position of the earthing screw in the access point:
Item Description
1 Earthing screw

Chapter 5. Access Point Troubleshooting
The table below lists some of the troubleshooting guidelines for the access point (AP).
Problem Solution
The AP did not receive a valid IP address via the DHCP. Ensure that the DHCP server is on and available on the
VLAN/subnet to which the AP is connected. If the AP still
fails to get a valid IP address, you can reboot it to see if
the problem is resolved.
Unable to connect to the server.
•Ensure that the server is running and is reachable
from the network to which the AP is connected. If a
firewall or a router has Access Control Lists (ACLs)
enabled between the AP and the server, ensure that
traffic on UDP port 3851 is allowed.
•Use the IP-based server discovery method and
ensure that you have correctly entered the DNS
name, wifi-security-server, on the DNS server.
•Ensure that the DNS server IP addresses are either
correctly configured, or are provided by the DHCP
server.
•The AP might fail to authenticate with the server. In
this case, an 'Authentication failed ' event is raised
on the server. Refer to the event for recommended
action.
The AP has encountered a problem.
•If you are using Arista Cloud Services, then open
the TCP port 443 (SSL). If you have an on-premises
installation, then open UDP port 3851 and port 80.
•If you are using a Proxy, Web Accelerator, or URL
Content Filter between the AP and the Internet,
ensure that the settings allow communication
between the AP and Arista Cloud Services.
•If your configuration requires you to specify an exact
IP address or IP range for Arista Cloud Services,
please contact http://[email protected].