Objective

Applies To

• Cisco Meraki MX series routers

Procedure

The purpose of this article is to provide a sample configuration. At the time of article creation, this device was in a known working state on the firmware used.  Keep in mind different firmware versions will interact with hosted VoIP services in different ways. While this device may be fully functional on the tested and/or current firmware version, it is possible newer revisions will cause disruptions in service or make a device fully compliant with the required settings for hosted VoIP services where it was previously not.

Administrative Information

1. Make sure your router is powered on and connected to your network.
2. In a browser on a computer on the same network as the router, navigate to the assigned IP address or wired.meraki.com.
3. Log in (default credentials shown below).
   • Username: (device serial number, all CAPS, with dashes)
   • Password: (blank)

Traffic Shaping Settings for the Meraki MX Series

Uplink configuration

1. Disable Link aggregation. When enabled, Link aggregation spreads Internet traffic across both uplinks, proportional to bandwidths set for the Internet1 and Internet2, respectively.
2. Set Global bandwidth limits (either will work—just make sure to set enough upload and download for your 8x8 phones):
   • Simple: Single setting that applies to both upload and download traffic throughput. Move the slider control right or left to set the limits.
   • Details: Allows you to set different limits on upload and download throughput. Enter the limits manually in kb/s. You can also use this mode to create more precise per-client limits than in simple mode.
3. Disable speed burst.

Traffic shaping rules

1. Click Create a new rule to add a traffic shaping rule.
2. Set Rule Definition (do one of the following):
   • Select from various predefined application categories such as Video & Music, Peer-to-Peer, or Email.
   • Create rules by specifying HTTP hostnames (for example, salesforce.com); port numbers (such as 80); IP ranges (such as 192.168.0.0/16); or IP address range and port combinations (such as 192.168.0.0/16:80).
3. Set Rule Actions.
   • Click Add an expression to create additional specifications for traffic that is shaped according to the same rule action.
   • Specify appropriate bandwidth limits for each type of traffic with the bandwidth slider control.
     • Can be specified to ignore any limits specified for the whole network; to obey the specified limits; or to apply more restrictive limits than the network limits.
     • Click details next to the bandwidth slider control to specify asymmetric limits on uploads and downloads.
   • Always set Priority for 8x8 services to P7 (highest priority).
     • Priority allows the router to prioritize a given network flow relative to the rest of the network traffic:
       • High: 4/7
       • Normal: 2/7
       • Low: 1/7
     • Ensure that uplink throughput settings are accurate.
   • Select a value for the DSCP tag in the IP header on all incoming and outgoing IP packets to apply QoS prioritization to Layer 3 traffic.
     • Ensure that upstream networking equipment also supports QoS prioritization.
     • This also affects the Wi-Fi Multimedia (WMM) priority of the traffic.

Meraki MX65 v13.28

Introduction

Firewall

1. From the main menu go to Security Appliance > Firewall.
2. In the Layer 3 section, verify that Outbound rules are set to allow all traffic in and out.
   
   
3. If nothing is set, please have the admin enter this general setting or a custom one depending on their preference.

Traffic Shaping

1. From the main menu go to Security Appliance > Traffic Shaping.
2. On the last section Traffic shaping rules, verify there is a rule set for all VoIP and video conferencing. If none is available create a rule and copy the settings below.
   
   

Known Issues

Additional Information