Cisco SR224T-NA Administration Guide - Page 166
Dynamic Voice VLAN Modes, VLAN Management, Configuring Telephony OUI
View all Cisco SR224T-NA manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 166 highlights
VLAN Management Voice VLAN 12 From a VLAN perspective, the above models operate in both VLAN-aware and VLAN-unaware environments. In the VLAN-aware environment, the voice VLAN is one of the many VLANs configured in an installation. The VLAN-unaware scenario is equivalent to a VLAN-aware environment with only one VLAN. The switch always operates as a VLAN-aware switch. The switch supports a single voice VLAN. By default, the voice VLAN is VLAN 1. The voice VLAN is defaulted to VLAN 1. A different voice VLAN can be manually configured. It can also be dynamically learned when Auto Voice VLAN is enabled. Ports can be manually added to the voice VLAN by using basic VLAN configuration described in the Configuring VLAN Interface Setting section, or by manually applying voice-related Smartport macro to the ports. Alternatively, they can be added dynamically if the switch is in Telephony OUI mode, or has Auto Smartports enabled. Dynamic Voice VLAN Modes The switch supports two dynamic voice VLAN modes: Telephony OUI (Organization Unique Identifier) mode and Auto Voice VLAN mode. The two modes affect how voice VLAN and/or voice VLAN port memberships are configured. The two modes are mutually exclusive to each other. • Telephony OUI In Telephony OUI mode, the voice VLAN must be a manually-configured VLAN, and cannot be the default VLAN. When the switch is in Telephony OUI mode and a port is manually configured as a candidate to join the voice VLAN, the switch dynamically adds the port to the voice VLAN if it receives a packet with a source MAC address matching to one of the configured telephony OUIs. An OUI is the first three bytes of an Ethernet MAC address. For more information about Telephony OUI, see Configuring Telephony OUI. • Auto Voice VLAN In Auto Voice VLAN mode, the voice VLAN can be either the default voice VLAN, manually configured, or learned from external devices such as UC3xx/5xx and from switches that advertise voice VLAN in CDP or VSDP. VSDP is a Cisco defined protocol for voice service discovery. Cisco Small Business 200 Series Smart Switch Administration Guide 167