03-04-2022 03:25 AM
I've just purchased a CBS350-48T-4X - my first fully managed switch so I'm using the web GUI.
I'm trying to set up a VLAN for our voice traffic.
VLAN1 obtains an IP address from a DrayTek router - used for broadband access
VLAN20 obtains an IP address from a BT router - used for SIP cloud service
I'm trying to get some Yealink phones to join VLAN20 using the "Telephony OUI" settings.
I've added the Yealink manufacturer code to the OUI table, added the ports to the Telephony OUI Interface and enabled Telephony OUI.
When I connect the phones, they are still obtaining an IP address from VLAN1.
Am I missing something or is there a posible compatiblity issue with the types of phones we are using?
03-04-2022 03:54 AM
LLDP-MED is activated on the Yealink Phones?
03-04-2022 04:11 AM
Hi.
Yes LLDP is enabled on the phones.
03-04-2022 04:27 AM
LLDP or LLDP-MED?
03-04-2022 05:45 AM
There's only an option to enable / disable LLDP but the user manual says "The DECT IP phones support Link Layer Discovery Protocol for Media Endpoint Devices (LLDP-MED)"...
03-04-2022 06:57 AM
Captured initial broadcast from one of the devices using wireshark:
Destination: LLDP_Multicast (01:80:c2:XX:XX:XX)
Address: LLDP_Multicast (01:80:c2:XX:XX:XX)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
.... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
Source: YealinkX_XX:XX:XX (80:5e:c0:XX:XX:XX)
Address: YealinkX_XX:XX:XX (80:5e:c0:XX:XX:XX)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
Type: 802.1 Link Layer Discovery Protocol (LLDP) (0x88cc)
Padding: 0000000000000000000000000000000000000000000000000000
Link Layer Discovery Protocol
02-28-2023 02:54 PM
Were you able to get that feature working?
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