QoS & Bandwidth

5.6 QoS Configuration

5.6.1 Webex Traffic Classification

Traffic Type	DSCP Marking	Queue	Bandwidth
Voice (RTP)	EF (46)	Priority	128 kbps/call
Video	AF41 (34)	Class 4	2 Mbps/call
Signaling (SIP/TLS)	CS3 (24)	Class 3	64 kbps/call
App Sharing	AF21 (18)	Class 2	1 Mbps/session

5.6.2 SD-WAN QoS Policy (Existing ABV-SDWAN-2024)

Reference: Abhavtech SD-WAN uses Cisco SD-WAN (Viptela). QoS policies already configured.

! Verify existing Voice policy
show sdwan policy from-vsmart | include voice

! Expected output - Voice class mapped to EF
class voice
 bandwidth-percent 30
 buffer-percent 30
 scheduling strict

5.6.3 Campus Switch QoS (Existing ABV-SDA-ISE-2025)

Reference: SD-Access fabric already has QoS policies for voice VLAN.

! Verify voice VLAN QoS on access switch
show policy-map interface GigabitEthernet1/0/1

! Expected - Trust DSCP on voice ports
interface GigabitEthernet1/0/1
 switchport voice vlan 100
 mls qos trust dscp

5.6.4 QoS Validation Commands

Platform	Command	Expected Output
Cisco Switch	show mls qos interface	Trust DSCP enabled
Cisco Router	show policy-map interface	EF queue active
SD-WAN Edge	show sdwan policy	Voice policy applied
Palo Alto	show qos interface	QoS profile active

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