07-23-2020 09:38 AM
Hi,
interface GigabitEthernet3/31
switchport mode access
switchport nonegotiate
switchport voice vlan 30
Why is it possible to hv 2 VLAN (data and voice) in the same port considering it is ACCESS and NOT TRUNK port?
Bcoz of Cisco technology OR this is quite standard for all other brand of switches?
I saw some switches got terms like HYBRID port, is it the same?
Solved! Go to Solution.
07-23-2020 01:57 PM
Hi,
It is called "Multi-vlan access port. Have a look at this link and see section "Multi-vlan access port" for detail explanation.
HTH
07-23-2020 03:01 PM
07-29-2020 06:37 AM
to add to what Joe mentioned:
1 - generally speaking, I think a lot of folks consider an edge port to be an end user port. Not a strict definition, but as Joe says at the edge of the network, IE - access layer, and not at core/distribution layer.
2 - no, it does not mean that you must, but generally using cdp for cisco phones, or lldp for avaya phones, helps in tracking and troubleshooting, or poe allocation. Also note that in some environments where security and compliance is a big topic, these L2 protocols might be disabled and not allowed to be turned on.
3 - personally I do not
4 - it can, but does not necessarily have to have both. It can be just a data vlan, or configured for voice and data.
07-23-2020 12:29 PM
if i understand the quesiton you looking 2 VLAN to be in the access port ? not trunk
cisco do support Access Data and voice in the same port as below example : ( this is for where edge device connecting)
for uplink, you need to allow this 2 VLAN in the Trunk to reach other switches.
interface GigabitEthernet3/31
switchport mode access
switchport nonegotiate
switchport voice vlan 30
switchport access vlan 20 - for data
07-23-2020 01:27 PM - edited 07-23-2020 01:31 PM
I think Cisco calls it Mini-trunk. It is established via CDP, so your device must be able to use CDP, like Cisco IP phones and switches. I think there are 4 options with that mini-trunk. You can find them in CCNP Switch, OCG book from Cisco Press. (If I find saved picture, I attach it).
Basically, Cisco IP phone is like mini switch with 2 or 3 ports; one to switch, one to PC or device. So, trunk is established between switch and IP phone, then no trunk between IP phone and PC. you must have Ip phone between switch and end-device and in correct port (it wont work otherwise). One port shows icon of a switch; while other one icon of a PC.
Regards, ML
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07-23-2020 01:57 PM
Hi,
It is called "Multi-vlan access port. Have a look at this link and see section "Multi-vlan access port" for detail explanation.
HTH
07-23-2020 03:01 PM
07-24-2020 05:16 AM
the phone tags voice traffic (with vlan 30) but does not for the PC that is plugged into the phone (regardless of what the access vlan number is). That's why it is not defined as a trunk port. For cisco phones, CDP helps determine. For other vendors, LLDP helps determine.
07-28-2020 07:47 PM
Hi,
1)Is "edge port" a Cisco proprietary technology-only Cisco switches or other switch also using?
2)Does it means the configuration of voice and data vlan MUST use CDP(both sides CDP enabled)? fyi, I am connecting to Avaya IP phones but sh cdp doesnt see them.
3)Any example of "edge port" /"voice + data vlan" config in other brands switch?
4)"edge port" is an access port with voice + data vlan,correct?
Thank you so much!!!!!!
07-29-2020 06:03 AM
07-29-2020 06:37 AM
to add to what Joe mentioned:
1 - generally speaking, I think a lot of folks consider an edge port to be an end user port. Not a strict definition, but as Joe says at the edge of the network, IE - access layer, and not at core/distribution layer.
2 - no, it does not mean that you must, but generally using cdp for cisco phones, or lldp for avaya phones, helps in tracking and troubleshooting, or poe allocation. Also note that in some environments where security and compliance is a big topic, these L2 protocols might be disabled and not allowed to be turned on.
3 - personally I do not
4 - it can, but does not necessarily have to have both. It can be just a data vlan, or configured for voice and data.
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