154
C
HAPTER
7: C
ONFIGURING
VLAN
S
Defining Voice
VLAN
Voice VLANs allows network administrators enhance VoIP service by
configuring access ports to carry IP voice traffic from IP phones on specific
VLANs. Network Administrators can configure VLANs on which voice IP
traffic is forwarded. Non-VoIP traffic is dropped from the Voice VLAN.
Voice VLAN also provides QoS to VoIP, ensuring that the quality of sounds
does not deteriorate if the IP traffic is received unevenly. The system
currently supports one voice VLAN.
When configuring Voice VLAN, ensure the following:
■
IP phones are configured with VLAN-mode as enabled, ensuring that
tagged packets are used for all communications.
■
If the IP phone’s VLAN-mode is disabled, the phone uses untagged
packets. The phone uses untagged packets while retrieving the initial
IP address through DHCP. The phone eventually use the Voice VLAN
and start sending tagged packets.
The Voice VLAN Page contains the following fields:
To configure Voice VLANs:
1
Click
Policy > Voice VLAN
. The
Voice VLAN Page
opens:
Figure 76
Voice VLAN Page
The
Voice VLAN Page
contains the following fields
:
Summary of Contents for 3CRUS2475 24
Page 137: ...Defining LAG Membership 137...
Page 139: ...139 Defining Voice VLAN Defining GVRP...
Page 194: ...194 CHAPTER 9 CONFIGURING IP INFORMATION Static Indicates the ARP entry is a static entry...
Page 197: ...Defining ARP Interface Settings 197 Unchecked Maintains the current ARP entries...
Page 321: ...320 APPENDIX C TROUBLESHOOTING...
Page 329: ...328 APPENDIX GLOSSARY...