Voip traffic configuration, In this chapter, Overview – Brocade Communications Systems Brocate Ethernet Access Switch 6910 User Manual
Page 865: Configuring voip traffic, Chapter 40
Brocade 6910 Ethernet Access Switch Configuration Guide
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Chapter
40
VoIP Traffic Configuration
In this chapter
This chapter covers the following topics:
•
– Enables VOIP globally, sets the Voice VLAN, and the aging time for attached
ports.
•
– Configures the list of phones to be treated as VOIP devices based on the
specified Organization Unit Identifier (OUI).
•
– Configures the way in which a port is added to the Voice VLAN, the filtering of
non-VoIP packets, the method of detecting VoIP traffic, and the priority assigned to voice
traffic.
Overview
When IP telephony is deployed in an enterprise network, it is recommended to isolate the Voice
over IP (VoIP) network traffic from other data traffic. Traffic isolation can provide higher voice
quality by preventing excessive packet delays, packet loss, and jitter. This is best achieved by
assigning all VoIP traffic to a single Voice VLAN.
The use of a Voice VLAN has several advantages. It provides security by isolating the VoIP traffic
from other data traffic. End-to-end QoS policies and high priority can be applied to VoIP VLAN traffic
across the network, guaranteeing the bandwidth it needs. VLAN isolation also protects against
disruptive broadcast and multicast traffic that can seriously affect voice quality.
The switch allows you to specify a Voice VLAN for the network and set a CoS priority for the VoIP
traffic. The VoIP traffic can be detected on switch ports by using the source MAC address of
packets, or by using LLDP (IEEE 802.1AB) to discover connected VoIP devices. When VoIP traffic is
detected on a configured port, the switch automatically assigns the port as a tagged member the
Voice VLAN. Alternatively, switch ports can be manually configured.
Configuring VoIP Traffic
Use the Traffic > VoIP (Configure Global) page to configure the switch for VoIP traffic. First enable
automatic detection of VoIP devices attached to the switch ports, then set the Voice VLAN ID for the
network. The Voice VLAN aging time can also be set to remove a port from the Voice VLAN when
VoIP traffic is no longer received on the port.
CLI References
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