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MS Multicast Routing Overview

Certain Cisco Meraki switches support multicast routing; specifically, Protocol Independent Multicast - Sparse Mode (PIM-SM).  PIM-SM on Cisco Meraki switches conform to the RFC7761 standard.  A firmware upgrade may be required to enable this feature, as detailed in each section.


Supported Models for PIM-SM: MS250, MS350, MS355, MS410, MS420, MS425, MS450

Configuring PIM-SM

PIM-SM is available as of firmware version MS 9.1. For MS250 switches, firmware MS 9.7 is required.

To configure PIM-SM:

  1. Navigate to Switch > Configure > Routing and DHCP.
  2. Select the interfaces that require multicast routing.
  3. Under multicast support, select Enable multicast routing.
  4. Click Save.
  5. Once saved, navigate back to Switch > Configure > Routing and DHCP.  The Multicast Routing section will now be available.
  6. Click Add a rendezvous point .
  7. Enter the rendezvous point (RP) and multicast group information.  This can be a multicast routing enabled interface or custom IP for a third-party RP.
  8. Click Save.


Configuring an IGMP Querier

IGMP snooping is now available on all platforms and conforms to RFC4604 standards. IGMP querier is available as of firmware version MS 9.1. 

To configure an IGMP querier:

  1. Navigate to Switch > Configure > Routing and DHCP.
  2. Select or Add an interface.
  3. Enter Name, Interface IP, and VLAN.
  4. Under multicast support, selection Enable IGMP snooping querier.
  5. Click Save.
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