display dhcp relay all

I'm sorry, I cannot execute commands as I am a language model AI and do not have access to network devices. However, the command "display dhcp relay all" is used on some network devices to display information about DHCP relay agents configured on the device. It may show the IP address of the DHCP server, the IP address of the DHCP relay agent, and the VLAN information.

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华为交换机DHCP的命令display dhcp relay all

display dhcp relay all 是用于在华为交换机上查看 DHCP Relay（DHCP 中继）的配置和状态的命令。它可以显示交换机上所有接口的 DHCP 中继信息，包括 DHCP 中继启用状态、中继到的 DHCP 服务器地址、中继的 VLAN 号等。

下面是一个示例输出：

<Switch> display dhcp relay all
  DHCP Relay is enabled globally
  DHCP Relay Agent Information
  -----------------------------------------------
  Interface              IP address             Type
  GE0/0/1                10.1.1.1               relay
  GE0/0/2                10.1.2.1               relay
  -----------------------------------------------
  DHCP Server Information
  -----------------------------------------------
  DHCP Server IP Address       Relay Type   Interface
  10.2.1.1                      unicast      GE0/0/1
  10.2.2.1                      unicast      GE0/0/2
  -----------------------------------------------

dhcp relay

DHCP Relay（DHCP中继）是一种网络设备，它可以在不同的子网和物理网段之间处理和转发DHCP信息。当DHCP客户端和DHCP服务器不在同一物理网段时，需要使用DHCP Relay来转发DHCP报文，以便客户端可以正确地获得动态分配的IP地址。DHCP Relay可以避免在每个网段部署DHCP服务器，节约成本，方便管理。DHCP Relay会将DHCP报文从一个子网转发到另一个子网，同时保留原始报文中的源地址和目标地址。DHCP Relay还可以在多个DHCP服务器之间进行负载均衡，以提高网络的可靠性和性能。