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Cisco Meraki

MS450 Overview and Specifications


The MS450 aggregation switch features twelve 40G fiber ports (QSFP+) and two 100G (QSFP28) fiber uplink ports. The switch is designed to meet the needs of high bandwidth, multi-gigabit switching and works best alongside the MS355.




  • 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  
  • Broadcast Storm Control 
  • Dynamic ARP Inspection / DHCP Snooping 
  • 802.1X Authentication
  • 12x 40GbE QSFP+ 
  • 2x 100GbE QSFP28 fiber uplinks
  • 2x Dedicated Stack Ports for up to 400G of Stacking bandwidth
  • L3 Switching including OSPF 
  • Hot Swappable Power Supplies and Fans 
  • Warm Spare capable


The basic initial configuration of the MS450 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 through the Local Status Page to allow it to communicate with the Meraki Dashboard.
  4. Allow the device to completely check-in and perform any initial firmware upgrades
  5. Finish configuring the device from the Meraki Dashboard 
    1. Create a Switch Stack
    2. Manage local VLANs / Port configuration
    3. Configure Layer 3 Routing 

Context and Comparisons 

  MS355-24X MS355-24X2 MS450-12
1GbE RJ45 16 - -
mGbE RJ45 8 24 -
10GbE SFP+ 4 4 -
40GbE QSFP+ 2 2 12
100GbE QSFP28 - - 2
Hardware Stack Port 2 2 2
Dedicated Management Interface 1 1 1
Hot Swap Power Supply Yes, Dual Yes, Dual Yes, Dual
Hot Swap Fans Yes, 3x Yes, 3x Yes, 3x
Layer 3 Routing Yes Yes Yes
UPoE Capable Yes, 740W Yes, 740W No
Max Switching Capacity 352 Gbps 640 Gbps 1.36 Tbps
Max Stacking Bandwidth 400 Gbps 400 Gbps 400 Gbps

Technical Breakdown  

Hardware Breakdown

40GbE QSFP+ 12
100GbE QSFP28 Uplink Ports 2
100G Hardware Stack Ports 2
Dedicated RJ45 Mgmt Interface 1
Hot Swap Power Supply Yes, Dual
Hot Swap Fans Yes, 3x

Throughput and Capabilities

Layer 3 Routing Yes
UPoE Capable No
Switching Capacity 1.36 Tbps
Stacking Bandwidth 400 Gbps


Mount Type 1U Rack Mount
Dimensions (h x w x d) 1.72” × 19.08” × 18.85” (4.37 × 48.46 × 47.88cm)
Weight 13.80 lbs (6.26 kg)
Power Supply 250W AC
Power Load (idle/max) 57W / 138W
Operating Temperature  32°F - 113 °F
0°C - 45°C
Humidity 5% to 95%


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.

Front Panel Components



LED Status




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



Switch does not have power


Switch Ports


No client connected


Solid orange

10/100 Mbps (1 Gbps on SFP+)


Solid green

1/2.5/5/10 Gbps (10 Gbps on SFP+)


Back Panel Components



LED Status





Restore button to clear switch IP and local configuration settings


Management Interface


Connected, used for easy access to the local status page


Stack Ports


Stack Cables are connected here


Redundant Fans


Active and operational


Redundant Power Supplies


Active and functional power supplies


Power cords may be ordered separately. 

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.

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. 


Common Stacking Alerts 

View our dedicated Switch Stacking document for more detailed information about configuring a Switch Stack and common issues.

Ensure all stack members are configured on dashboard, online and connected via their stacking ports. If connected and configured correctly, the error will disappear within 20-30 minutes. If the error persists, please contact Cisco Meraki Technical Support for further troubleshooting.

This switch's current stack members differ from the dashboard configuration.


This error can occur in the following scenarios:

  • Stack members are configured on dashboard, but not all members are connected via their stacking ports.
  • A stack member has failed or is powered off.
This switch is not connected to a stack.

Screen Shot 2017-06-21 at 1.16.12 PM.png

This error can occur in the following scenarios:

  • The switch is configured on dashboard as a stack member, but is not connected to a stack.
This switch does not have a stack configuration.

Screen Shot 2017-08-02 at 4.36.07 PM.png

This error can occur in the following scenarios:

  • The switch is physically connected as a stack, but not configured on dashboard as a stack member.



Can the 100Gbps QSFP28 ports downshift to 40Gbps if 40G QSFP+ modules are used?

The 2 x 100Gbps QSFP28 ports are rated for 100Gbps use cases only. Downshifting to 40Gbps is not supported.

Is Flexible Stacking (similar to MS425) supported?

No, the MS450 has two dedicated stack ports to support physical stacking.

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