not a trunk...
a mulit-vlan access port is an access port set up for an ip phone that is connected to a pc
the PVID identifies the native vlan for data traffic, and the VVID (voice vlan identifier) identfifies an AUXILIARY vlan for voice. the switch uses CDP to communicate the VVID to the phone...
naturally, since 802.1q doesn't tag the native vlan, the data frames will be untagged, whereas the voice frames will carry dot1q tags. within the tagged frames there is a user priority field which contains quality of service information
by simply configuring a VVID for the phone an l2 CoS value of 5 is included
dls1(config)#int f0/13
dls1(config-if)#sw mode acc
dls1(config-if)#sw acc vlan 50
% Access VLAN does not exist. Creating vlan 50
dls1(config-if)#sw voice vlan 55
% Voice VLAN does not exist. Creating vlan 55
dls1(config-if)#sw mode acc
dls1(config-if)#spann portf
dls1(config-if)#end
dls1#sh int f0/13 sw
Name: Fa0/13
Switchport: Enabled
Administrative Mode: static access
Operational Mode: down
Administrative Trunking Encapsulation: negotiate
Negotiation of Trunking: Off
Access Mode VLAN: 50 (VLAN0050)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Voice VLAN: 55 (VLAN0055)
network cisco ccna gns3 certification arteq
a network runs through it
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