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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.

 

ms120-24.jpgms120-48.jpg

 

Features 

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

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
    1. If a Dashboard Organization does not yet exist, Create one
  2. Add the device to a Dashboard Network 
    1. If a Network does not yet exist, Create one first
  3. Physically connect the device to the local network
    1. Connect one of the RJ45 ports to existing infrastructure to provide a temporary uplink
    2. Power on the device and let it check in to the Dashboard
    3. 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 
    1. 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
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
Mount Type - - 1U Rack Mount
Dimensions (h x w x d)

1.1 x 8.74 x 6 in

(2.8 x 22 x 15cm)

1.1 x 8.74 x 6 in

(2.8 x 22 x 15cm)

1.75 x 9 x 8.58 in

(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 / 9 W 7 / 88 W 9 / 161 W
Operating Temperature  32°F - 113 °F
0°C - 45°C
32°F - 113 °F
0°C - 45°C
32°F - 113 °F
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
Dimensions (h x w x d)

1.73 x 17.32 x 10 in

(4.4 x 44 x 25cm)

1.73 x 17.32 x 10 in

(4.4 x 44 x 25cm)

1.73 x 17.32 x 10 in

(4.4 x 44 x 25cm)

1.73 x 17.32 x 13.4 in

(4.4 x 44 x 34cm)

1.73 x 17.32 x 13.4 in

(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
Operating Temperature 32°F - 113 °F
0°C - 45°C
32°F - 113 °F
0°C - 45°C
32°F - 113 °F
0°C - 45°C
32°F - 113 °F
0°C - 45°C
32°F - 113 °F
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. When the device powers on, all the Internet LEDs flash twice. Additional functions are described below, from left to right.

Item

Function

LED Status

Meaning

1

Power

Solid orange

Switch is unable to connect to the Meraki cloud

   

Flashing white

Firmware upgrade in process

   

Solid white

Switch is fully operational and connected to the Meraki cloud

   

Off

Switch does not have power

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

3

Switch Ports

Off

No link is detected on this port

   

Flashing orange (RJ45 ports only)

Activity indicator

    Solid green 1 Gbps link detected

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

Insert a paperclip if a restore 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 restore.

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.

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. 

 

 

 

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