H3C S7500E Series Command Manual page 1052

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Command Manual – DHCP

H3C S7500E Series Ethernet Switches

fail-over ip-address dialer-string: Specifies the failover IP address and dialer string.

The dialer-string is a string of 1 to 39 characters, which can be 0 to 9, and "*".

ncp-ip ip-address: Specifies IP address for the primary network calling processor.

voice-vlan vlan-id: Specifies the voice VLAN ID, in the range of 2 to 4094.

disable: Disables the specified voice VLAN ID, meaning DHCP clients will not

take this ID as their voice VLAN.

enable: Enables the specified voice VLAN ID, meaning DHCP clients will take this

ID as their voice VLAN.

Use the voice-config command to configure specified Option 184 contents in a DHCP

address pool.

Use the undo voice-config command to remove specified Option 184 contents from a

DHCP address pool.

By default, no Option 184 content is configured.

Note that specifying the IP address of a network calling processor first is necessary to

make other configured parameters take effect.

# Configure Option 184 in DHCP address pool 0: the primary network calling processor

10.1.1.1, backup network calling processor 10.2.2.2, voice VLAN ID 3 that is enabled,

the failover IP address 10.3.3.3 and dialer string 99*.

<Sysname> system-view

[Sysname] dhcp server ip-pool 0

[Sysname-dhcp-pool-0] voice-config ncp-ip 10.1.1.1

[Sysname-dhcp-pool-0] voice-config as-ip 10.2.2.2

[Sysname-dhcp-pool-0] voice-config voice-vlan 3 enable

[Sysname-dhcp-pool-0] voice-config fail-over 10.3.3.3 99*

Chapter 1 DHCP Server Configuration Commands

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