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6.3.5 What Could Go Wrong
1
If the priority is not the same as the setting in voice VLAN,
please verify the MAC address of the IP phone. The MAC
address can usually be found on the label or sticker
underneath the IP phones. This MAC address must be within
the range of the Voice VLAN OUI settings
2
Here are the expected behaviors of IP phones based on the
different settings. If you find the behaviors of the IP Phone is not
the same as your expectation, please refer below:
a.
If the IP Phone is VLAN
enabled
and this VLAN is the same as
Voice VLAN
: The Switch will keep the Voice VLAN and assign
the priority setting to the IP phone. The IP phone will only
recognize the tagged traffic. In this case, port 1 in VLAN 100 on
Switch should be set as
tagged out
(check the TX tagging
box).
b.
If the IP Phone is VLAN
enabled
and this VLAN is different from
the switch’s
Voice VLAN
: The Switch will
not
apply any
changes on the VOIP traffic of the IP Phone.
c.
If the IP Phone is VLAN
disabled
: The Switch will assign the
Voice VLAN and priority setting to the IP phone’s VOIP traffic.
This setting causes the IP Phone to only send and receive
untagged
traffic. In this case, port 1 in VLAN 100 on Switch
should be
set as
untagged out
(uncheck the TX tagging box).
3
Some computer network cards may not support the 802.1Q
(VLAN) information. If you don’t see the 802.1Q information in
Wireshark, you may need to use a different NIC. We
recommend using USB network adapters.
Summary of Contents for GS3700 Series
Page 21: ...21 215 www zyxel com 2 Web GUI Go to Menu Management Maintenance Reboot System Custom Default...
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Page 35: ...35 215 www zyxel com 3 Click Save to save the configuration...
Page 54: ...54 215 www zyxel com 2 Enter Global field and check the TFTP server box...
Page 63: ...63 215 www zyxel com Without Class ID...
Page 79: ...79 215 www zyxel com 2 2 4 Test the Result 1 PC 1 can ping PC 2 successfully...
Page 101: ...101 215 www zyxel com 8 Finally connect the link between Switch 2 and Switch 3...
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