Dell EMC Networking - OS10 VoIP Quick Reference Guide
Summary: Dell EMC Networking OS10 Voip Quick Reference Guide, Quick Reference for commands needed to send out LLDP-Med network policy to end points as well as QoS for OS10 switches
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Symptoms
Objective:
Quick Reference for commands needed to send out LLDP-Med network policy to end points as well as QoS for OS10 switches
Solution:
VoIP phones have two ways of getting network assignments, a DCHP server can provide requested options to the device, or LLDP-Med sends out a network policy to the device. Once received, the device will process the given information and send to the switch either untagged or tagged vlan packets. The following command will create and push out a LLDP network policy to all interfaces.
Sample from Global Config:
OS10(config)# lldp med network-policy 1 app voice vlan 10 vlan-type tag priority 6 dscp 46
The following table is a breakdown of the command.
| Command Segment | Description |
| lldp med network-policy 1 | Enter a network policy number 1 to 32 |
| app voice | This is a Voice network-policy application |
| vlan 10 | Vlan number for the voice application |
| vlan-type tagged | The specified vlan should include an 802.1q header |
| priority 6 | User priority for the application |
| dscp 46 | DSCP value for the application |
While the above command will take care of the LLDP-Med vlan assignment for end devices, alone this will not prioritize VoIP traffic over other traffic.
Quality of Service (QoS) is used to identify and prioritize this traffic. QoS does this by looking at either the dot1p mapping or the dscp mapping.
Dscp-map manual configuration
| Command | Description |
| OS10(config)# trust dscp-map dscp_trust | Creates a DSCP map with the name dscp_trust |
| OS10(config-tmap-dscp-map)# qos-group 6 dscp 46 | Maps incoming packets with DSCP value 46 to queue 6 |
Dot1p-map manual configuration
| Command | Description |
| OS10(config)# trust dot1p-map map1 | Creates Dot1p map with the name map1 |
| OS10(config-tmap-dot1p-map)# qos-group 4 dot1p 5 | Maps dot1p value 5 to queue 4 |
QoS config with modifiers to trust either default settings or manually configured settings
| Command | Description |
| OS10(config)# system qos | Enters QoS mode to configure system level configurations |
| OS10(config-sys-qos)# trust-map {dot1p | dscp} {default | trust-map-name} | Applies trust maps to either dot1p or dscp values. Can either use default map or custom mapping |
Verification commands
OS10# show qos maps type trust-map-dscp
DSCP Priority to Traffic-Class Map : dscp_trust
Traffic-Class DSCP Priority
-------------------------------
6 46
OS10# show qos system
Dscp-tc-mapping : dscp_trust
ETS Mode : off
ECN Mode : off
OS10# show qos maps type trust-map-dot1p
DOT1P Priority to Traffic-Class Map : map1
Traffic-Class DOT1P Priority
-------------------------------
4 5
OS10# show qos system
Dot1p-tc-mapping : map1
ETS Mode : off
ECN Mode : off
Affected Products
PowerSwitch S3048-ON, PowerSwitch S4048-ON, Force10 Z9000, Dell Networking Z9500, Dell EMC Networking MX5108n, Dell EMC Networking MX9116n, PowerSwitch S4048T-ON, PowerSwitch S4112F-ON/S4112T-ON, PowerSwitch S4128F-ON/S4128T-ON
, PowerSwitch S4148F-ON/S4148T-ON/S4148FE-ON, PowerSwitch S4148U-ON, PowerSwitch S4248FB-ON /S4248FBL-ON, PowerSwitch S5148F-ON, PowerSwitch S5224F-ON, PowerSwitch S5232F-ON, PowerSwitch S5248F-ON, PowerSwitch S5296F-ON, PowerSwitch S6010-ON, PowerSwitch S6100-ON, PowerSwitch Z9100-ON, PowerSwitch Z9264F-ON
...
Article Properties
Article Number: 000138009
Article Type: Solution
Last Modified: 23 Sept 2024
Version: 4
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