Mitel 5560 IPT none Specifications download pdf (Page 322)

Engineering Guidelines

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Interface fa0/2 is connected to a MiVoice IP Phone that is capable of sending VLAN tagged

Ethernet frames. When learning the voice VLAN via CDP (as configured) an 802.1p value of

5 is initially assumed. However, if the Mitel proprietary DHCP option 133 is used then this will

overwrite the initial value. Mitel recommends an 802.1p value of 6 (unless using Cisco auto-qos).

By default 802.1p value 6 is a member of queue number 4. This is the expedited queue created

by the priority-queue out command on a Catalyst 3550. This interface configuration assumes

that DHCP option 133 is set to 6. If an alternate value (e.g. 5) is used then the queue members

need further defining. A local DHCP server or "IP helper" to a remote DHCP server is required

at the site.

Router 1 configuration

There are two physical interfaces on the Router 1 and an additional virtual interface.

• S0/0 is the serial interface to the WAN. This could be an alternative technology but we show

PPP in this example.

• Fa0/0 is the 10/100 physical Ethernet interface to Ethernet Switch 1 that connects to the

Data VLAN (i.e. VLAN 1).

• Fa0/0.100 is the virtual interface that only "listens" to the Voice VLAN (i.e. VLAN 100).

An example configuration using static routes follows. If using dynamic routing protocols (RIPv2,

OSPF etc.) the static routes are not required.

Switch3(config)# interface fa0/24 [connection to Router 1 fa0/0]

Switch3(config-if)# description "Connection to Router 2

fa0/1 - Voice"

Switch3(config-if)# switchport trunk encapsulation dot1q [Forces 802.1Q frame]

Switch3(config-if)# switchport mode trunk [sends VLAN information across the link]

Switch3(config-if)# priority-queue out [makes queue 4 a strict priority queue]

Interface fa0/24 is connected to the router.

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Mitel 5560 IPT none Specifications Page 322