ZyXEL Communications IES-5000 Support Notes page 61

IES-5000 Support Notes
4. Since port 1(VLAN 1) is used for data access, port 2(VLAN 102) is used for VoIP
and port 3 (VLAN 103) is used for IPTV service, assign a higher priority (qos = High)
on ports 2 and 3. This allows VoIP and IPTV traffic to get processed first during
network congestion. On the other hand, assign a low priority on port 1 since Internet
access is not time sensitive.
5. Check whether all the settings are correct.
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