Configure Class of Service

The set of rules included in a role, along with any access or Class of Service (CoS) defaults, determine how all network traffic of any client assigned to the role will be handled. For example, a Doctor role can be assigned a higher priority CoS and default access control due to the sensitivity and urgency of services that a doctor provides to patients.

To configure CoS:

  1. Select Configure > Policy > Class of Service from the menu.
  2. Select Add, or select an existing Class of Service from the list.
    The Class of Service Configuration page opens.
  3. Edit the fields.
    Click to expand in new window
    Class of Service Configuration
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    Name Naming should reflect the priority for your organization and be easily recognized by your IT team, such as Bulk Data or Critical Data.
    Priority Define how the Layer 2 priority of the packet will be marked. Priority 0 is the highest priority.
  4. For ToS/DSCP, define how the Layer 3 ToS/DSCP will be marked. Enter a hexadecimal value in the 0x (DSCP:) field, or select Configure to open the ToS/DSCP dialog.
  5. (Optional) In the ToS/DSCP dialog, select either Type of Service (ToS) or Diffserv Codepoint (DSCP). Set the related options, and select OK.
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    ToS/DSCP Configuration
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    Precedence Assign a priority to the packet. Packets with lower priority numbers are more likely to be discarded by congested routers than packets with higher priority numbers.
    Delay Sensitive Specifies that the high priority packets will be routed with minimal delay. It can be useful to enable this option for voice protocols.
    High Throughput Specifies that high priority packets will be routed with high throughput.
    High Reliability Specifies that high priority packets will be routed with low drop probability.
    Explicit Congestion Notification (ECN) Permits end-to-end notification of network congestion while preventing dropped packets. ECN can be used only with two ECN-enabled endpoints.
    Well-Known Value These values are explicitly defined in the DSCP related RFCs and implemented on many vendors' switches and routers.
    Raw Binary Value Specify a binary value if you want finer definition of priority.
  6. In the CoS dialog, set the Mask value.
    Mask Select a hexadecimal value to use for the ToS/DSCP value. For example, if the mask is 0xF0, then only the four most significant bits of the ToS of the received packets are marked. So, if the received ToS is 0x33 and the ToS marking is set to 0x2A, then the resulting ToS is 0x23.
  7. Select the inbound and outbound bandwidth limits from the drop-down lists. If needed, select GUID-A0473562-B7CA-4A8B-A250-A6B65935AC73-low.png to configure new bandwidth limits.
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    New Bandwidth Limits Dialog
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    Inbound Bandwidth Limit Inbound traffic is sent from the client to the network. Rate limits are enforced on a per-client basis whether the rate limit is assigned to a rule, role, or WLAN. Each client has its own set of counters that are used to monitor its wireless network utilization. Traffic from other clients never count against a client's rate limits. Maximum Number of Limiters per Group: 8 inbound
    Outbound Bandwidth Limit Outbound traffic is sent from the network towards the client. Maximum Number of Limiters per Group: 8 outbound
  8. Select Save.