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Seeking advice from a newbie onextreme OS- more of a scenario query

Seeking advice from a newbie onextreme OS- more of a scenario query

new_2_extreme
New Contributor

‎10-28-2020 09:12 AM

Hi There

The network i have been assigned to.

2 core switches - x-450-G2-24P010G4

2 edge switches - x440-48P-10G

An AVAYA voice appliance will be connected to a port on each of the core switches .

There are 3 vlans

EAPS on the core, data vlan 100 ( default vlan ) and wifi access point vlan 1000.

I need to setup a voice vlan..

i have created a voice vlan tag 40.

 

The trunk ports in both the core and edge switches i have added the voice van 40.

On the 48 port edge switches, if i assign multiple vlans to a port , that is both the data vlan 100 and voice vlan 40.

When a phone or  pc is connected say port 10, both device would make a dhcp request. 

Port 10 which is a member of both vlan 100 and vlan 40, i have tagged vlan40 for port 10.

 

How would port 10 , know it is a phone or pc making the request ?

 

The edge switches trunk port which has got vlan 100 , vlan 40 and vlan 1000 added. Is there any egress and ingress configuration i need to do. Is there anything i should be looking into further.

 

Thank you in advance

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2 REPLIES 2

Miguel-Angel_RO
Valued Contributor II

‎10-28-2020 10:40 AM

new_2_extreme,

 

For IPPhones and PC behind, this topic has already been discussed in the forum.

You must use LLDP-MED for the automatic configuration of the VLAN ID and tagging on the phone.

For the VLANs on the core, if you have EAPS enabled you must secure the also the voice VLAN.

If you don’t you’ll create a loop with possible network outage.

Mig

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Stefan_K_
Valued Contributor

‎10-28-2020 09:19 AM

I hope I understand it correctly…

If you have multiple VLANs tagged on a port, the end-systems also needs to be configured for tagged VLANs. If they don’t have this configured they send untagged frames and “belong” to the VLAN that is untagged on the switch-port.

What you could do: VLAN100 untagged, VLAN40 tagged. On the phones you can hopefully configure the VLAN Tag in the settings. When you connect a Phone to the Port it will be in VLAN40, all other devices will be VLAN100.

Other possibility is to use ExtremeControl and set the VLAN dynamically based on the MAC-Address.

Best regards
Stefan

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GTM-P2G8KFN