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6
Add LLDP-MED Network Policy
ERS-Stackable(config)#interface fastEthernet 3-11
ERS-Stackable(config-if)#lldp med-network-policies voice tagging tagged vlan-id 805
ERS-Stackable(config-if)#exit
7
Enable LLDP Vendor Specific settings
ERS-Stackable(config)#lldp vendor-specific avaya call-server <1-8> <ip address>
ERS-Stackable(config)#lldp vendor-specific avaya file-server <1-4> <ip address>
ERS-Stackable(config)#interface fastEthernet 3-11
ERS-Stackable(config)#lldp vendor-specific avaya dot1q-framing tagged
ERS-Stackable(config)#exit
7.2.2
Configuring ADAC and LLDP
Auto Detection–Auto Configuration (ADAC) automatically discovers the IP phone once it is plugged into
the Ethernet edge switch. Once discovered, the Ethernet edge switch automatically provisions the
appropriate Voice VLAN and QoS to the port as well as on the uplink to the core.
ADAC uses either the phone‗s MAC address or LLDP to automatically discover an IP Phone set. In
addition, you can use ADAC with 802.1AB LLDP-MED to inform an IP Phone with the Voice VLAN ID and
QoS values.
ADAC detection by MAC address works by checking the MAC address of the IP phone
against a MAC address range pre-configured on the switch. With the availability of ADAC
detection by LLDP, Avaya no longer recommends the use of ADAC detection by MAC.
IEEE 802.1AB LLDP is a Layer 2 neighbor discovery protocol. It defines a standard method for Ethernet
network devices such as switches, routers and IP Phones to advertise information about themselves to
other nodes on the network and store the information they discover. LLDP enables phones to exchange
information with the L2/L3 data switch to which it is attached. This allows the phone and the switch to
exchange capabilities and for a network administrator to have a more complete view of the network
infrastructure.
By default, the ERS settings disable ADAC and enable LLDP. IP phones and PCs function properly with
these settings. However, if you want to enable ADAC, configure ADAC in Untagged-Frames-Basic mode
or Untagged-Frames-Advanced mode. The IP phones (with no tagging) work with the appropriate QoS
markings applied.
For a detailed discussion of ADAC and VoIP deployment, please refer to the Avaya IP Telephony
Deployment Technical Configuration Guide (NN48500-517).
October 2012
Avaya Inc. – External Distribution
IP Office & Ethernet Switching Technical Configuration Guide
avaya.com
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