From: Carlos G Mendioroz (tron@huapi.ba.ar)
Date: Thu Aug 26 2004 - 12:56:16 GMT-3
I'm trying to understand the different scenarios right now.
There seem to be many.
If voice vlan is set to y, ip phone will start trunking and use it for
voice traffic, which will be COS marked 5.
The switch will trunk and separate the traffic (do remember to set mls
qos and if/mls qos trust cos) but it will say the port is in access
static mode!
#sh run int f 0/23
Building configuration...
Current configuration : 119 bytes
!
interface FastEthernet0/23
switchport voice vlan 555
no ip address
mls qos trust cos
spanning-tree portfast
end
#sh int f0/23 swi
Name: Fa0/23
Switchport: Enabled
Administrative Mode: dynamic desirable
Operational Mode: static access
Administrative Trunking Encapsulation: negotiate
Operational Trunking Encapsulation: native
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Voice VLAN: 555 (VLAN0555)
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
Protected: false
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
Voice VLAN: 555 (VLAN0555)
Appliance trust: none
gladston@br.ibm.com wrote:
> Russel,
>
> On your configuration int fax/x is configured as desirable; will it negotiate with Cisco Phone and end up as trunk? or the opposite?
> Is it recommended instead of "switchport mode trunk"?
> ================
> quoted
>
> Int fax/x
> switchport access vlan x
> switchport mode dynamic desirable
> switchport voice vlan y
>
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-- Carlos G Mendioroz <tron@huapi.ba.ar>
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