MS120 Overview and Specifications

Overview
Cisco Meraki MS120 switches provide Layer 2 access switching, ideal for branch and campus deployments. The MS120 series features a variety of power
options designed to meet the diverse needs of branch and campus deployments.

With 5 different models, capable of providing up to 740W of power over a variety of port densities, including SFP capable uplinks, the MS120 line is fully ready to
support future wireless infrastructure deployments across a variety of different environments.

Features

• Managed via Cisco Meraki Dashboard

• DHCP Snooping
• Remote Packet Capture Tools via Meraki Dashboard
• 802.1X Authentication
• Automatic Firmware upgrades
• 10/100/1000 Mbps RJ45
• SNMP/Syslog Integration
• 4x 1000 Mbps SFP models available
• IPv4/6 ACL support
• PoE and PoE+ models available for device level powering
• 802.1q VLAN tagging

1
Configuration
The basic initial configuration of the MS120 is just as simple as any other model of MS switch. The links below provide additional information and instructions
relating to each step in getting the device setup and configured for the first time.

1. Claim the device to an Organization on the Meraki Dashboard

a. If a Dashboard Organization does not yet exist, Create one
2. Add the device to a Dashboard Network
a. If a Network does not yet exist, Create one first
3. Physically connect the device to the local network
a. Connect one of the RJ45 ports to existing infrastructure to provide a temporary uplink
b. Power on the device and let it check in to the Dashboard
c. If necessary, configure a Static IP through the Local Status Page to allow it to communicate with the Meraki
Dashboard.
4. Allow the device to complete check-in and perform any initial firmware upgrades
5. Finish configuring the device from the Meraki Dashboard
a. Manage local VLANs / Port configuration

Context and Comparisons

MS120-8FP MS120-24P MS120-48FP

1GbE RJ45 8 24 48

1GbE SFP 2 4 4

Dedicated Mgmt Interface - 1 1

Max Switching Capacity 20 Gbps 56 Gbps 104 Gbps

PoE/PoE+ Capable Yes, 124W Yes, 370W Yes, 740W

Technical Breakdown

Hardware Breakdown

MS120-8 Models

MS120-8 MS120-8LP MS120-8FP

1GbE RJ45 8 8
8

2
 1GbE SFP 2 2 2

Dedicated Mgmt Interface - - -

MS120-24/48 Models

MS120-24 MS120-24P MS120-48 MS120-48LP MS120-48FP

1GbE RJ45 24 24 48 48 48

1GbE SFP 4 4 4 4 4

Dedicated Mgmt Interface 1 1 1 1 1

Throughput and Capabilities

MS120-8 Models

MS120-8 MS120-8LP MS120-8FP

PoE/PoE+ Capable - Yes, 67W Yes, 124W

Switching Capacity 20 Gbps 20 Gbps 20 Gbps

Power Supply External External Fixed Internal

MS120-24/48 Models

MS120-24 MS120-24P MS120-48 MS120-48LP MS120-48FP

PoE/PoE+ Capable - Yes, 370W - Yes, 370W Yes, 740W

Switching Capacity 56 Gbps 56 Gbps 104 Gbps 104 Gbps 104 Gbps

Power Supply Fixed Internal Fixed Internal Fixed Internal Fixed Internal Fixed Internal

Physical

MS120-8 Models

MS120-8 MS120-8LP MS120-8FP

3
 Mount Type - - -

1.1 x 8.74 x 6 in 1.1 x 8.74 x 6 in 1.75 x 9 x 8.58 in

Dimensions (h x w x d)
(2.8 x 22 x 15cm) (2.8 x 22 x 15cm) (4.4 x 23 x 23cm)

Weight 2.36 lb (1.07 kg) 2.76 lb (1.25 kg) 3.42 lb (1.55 kg)

Power Consumption 5 - 161W 5 - 161W 5 - 161W

Power Load (idle/max) 5/9W 7 / 88 W 9 / 161 W

32°F - 113 °F 32°F - 113 °F 32°F - 113 °F

Operating Temperature
0°C - 45°C 0°C - 45°C 0°C - 45°C

Humidity 5% to 95% 5% to 95% 5% to 95%

MS120-24/48 Models

MS120-24 MS120-24P MS120-48 MS120-48LP MS120-48FP

Mount Type 1U Rack Mount 1U Rack Mount 1U Rack Mount 1U Rack Mount 1U Rack Mount

1.73 x 17.32 x 10 in 1.73 x 17.32 x 10 in 1.73 x 17.32 x 10 in 1.73 x 17.32 x 13.4 in 1.73 x 17.32 x 13.4 in
Dimensions (h x w x d)
(4.4 x 44 x 25cm) (4.4 x 44 x 25cm) (4.4 x 44 x 25cm) (4.4 x 44 x 34cm) (4.4 x 44 x 34cm)

Weight 8.09 lb (3.67 kg) 9.26 lb (4.20 kg) 8.97 lb (4.06 kg) 12.70 lb (5.70 kg) 12.70 lb (5.70 kg)

Power Consumption 8 - 908W 8 - 908W 8 - 908W 8 - 908W 8 - 908W

Power Load (idle/max) 8 / 18 W 28 / 425 W 16 / 36 W 37 / 477 W 37 / 908 W

32°F - 113 °F 32°F - 113 °F 32°F - 113 °F 32°F - 113 °F 32°F - 113 °F
Operating Temperature
0°C - 45°C 0°C - 45°C 0°C - 45°C 0°C - 45°C 0°C - 45°C

Humidity 5% to 95% 5% to 95% 5% to 95% 5% to 95% 5% to 95%

Troubleshooting
The MS uses LEDs to inform the user of the device's status. Functions are described below, from left to right.

Function LED Status Meaning

Power Solid orange Switch is unable to connect to the Meraki cloud

Flashing white Firmware upgrade in process

4
 Solid white Switch is fully operational and connected to the Meraki cloud

Off Switch does not have power

Restore N/A Reset button to clear switch IP and local configuration settings

Switch Ports Off No link is detected on this port

Flashing orange (RJ45 ports only) Activity indicator

Solid green 1 Gbps link detected

Management Interface
Green Connected, used for easy access to the local status page

In addition, there is a reset button available on the front panel.

Insert a paperclip if a reset is required.

• A brief, momentary press: To delete a downloaded configuration and reboot.

• Press and hold for more than 10 sec: To force the unit into a full factory reset.

Equipment is to be used only in a restricted access location and installed/operated only by trained service personnel.

Common Troubleshooting
My device is connected to the network but not checking in to the Meraki cloud or shows a solid Orange LED.

Confirm that the device is powered on and has a valid IP address that is able to access the Internet. Use the Local Status Page to get more information about
the connectivity status of the device such as if it can successfully reach the Local Gateway, Internet, and/or Meraki Cloud servers. If necessary, contact Meraki
Support for additional assistance.

My Status LED is blinking WHITE

A blinking WHITE Status LED indicates that the device is in contact with the Dashboard Cloud servers and is performing a firmware update. This can sometimes
take 20-45 minutes or more to complete depending on hardware and other factors.

My Status LED is blinking ORANGE

The device is not able to successfully communicate with the Dashboard Cloud servers or there may be a hardware issue with the device. Check the Local Status
Page of the device to confirm the status and reach out to Meraki Support for further troubleshooting.

Event Log
The most common Event Log messages and their meaning are listed below.

5
Port STP change
Indicates the STP state of the port has changed, lists the relevant port number, previous, and new states. Typically accompanied by a 'Port status change' event.

Port status change

Indicates the link state of the port has changed, lists the relevant port number, old, and new state. Always accompanied by a 'Port STP change' event.

SFP module inserted/removed

Indicates that an SFP module was either inserted or removed, includes SFP module information for inserted events and always lists the relevant port number.