HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 2 - LAN Switching Co - Page 141
Table 15, of voice traffic.
View all HP 6125G manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 141 highlights
suitable for scenarios where PCs and IP phones connected in series access the network through the device and ports on the device transmit both voice traffic and data traffic at the same time, as shown in Figure 40. When the voice VLAN works normally, when the system reboots, the system reassigns ports in automatic voice VLAN assignment mode to the voice VLAN after the reboot, ensuring that existing voice connections can work normally. In this case, voice traffic streams do not trigger port assignment to the voice VLAN. Figure 40 PCs and IP phones connected in series access the network • Manual mode-You must manually assign an IP phone accessing port to a voice VLAN. Then, the system matches the source MAC addresses carried in the packets against the device's OUI addresses. If the system finds a match, it issues ACL rules and configures the packet precedence. In this mode, you must manually assign ports to, or remove ports from, a voice VLAN. Manual mode is suitable for scenarios where only IP phones access the network through the device and ports on the device transmit only voice traffic, as shown in Figure 41. In this mode, ports assigned to a voice VLAN transmit voice traffic exclusively, which prevents the impact of data traffic on the transmission of voice traffic. Figure 41 Only IP phones access the network Both modes forward tagged packets sent out of IP phones according to their tags. Table 15 and Table 16 list the configurations required for ports of different link types to support tagged or untagged voice traffic sent from IP phones when different voice VLAN assignment modes are configured. When IP phones send untagged voice traffic, you can only configure the voice traffic receiving ports on the device to operate in manual voice VLAN assignment mode. Table 15 Required configurations on ports of different link types for them to support tagged voice traffic Port link type Access Trunk Voice VLAN Support for tagged assignment mode voice traffic Automatic No Manual Automatic Yes Configuration requirements N/A The PVID of the port cannot be the voice VLAN. 132