二层和三层Eth-Trunk接口配置实例配置实例文章出处：www.net1980.com原创路由器可以对多个以太网接口捆绑形成一个Eth-Trunk逻辑接口，Eth-Trunk接口的主 要目的是增大带宽和提高设备之间链路的可靠性。Eth-Trunk接口可以工作在二层模式或三 层模式。二层模式的Eth-Trunk接口类似交互机的接口，只负责二层数据包的转发；三层模 式的Eth-Trunk接口则类似路由器的接口，可以配上IP地址实现路由功能。本文为大家介 绍如何在华为的路由器里配置二层和三层Eth-Trunk接口。一、二层Eth-Trunk接口配置实例1、组网结构和需求如下图所示， RouterA 和 RouterB 之间通过 Eth-Trunk1 连接， Eth-Trunk1 是二层端口。 将 Eth-Trunk1 配置为 Trunk 类型接口，允许 RouterA 和 RouterB 之间的所有 VLAN 帧通过。2、配置思路采用如下的思路配置二层Eth-Trunk端口允许VLAN通过：1）创建 Eth-Trunk 接口。2）将Eth-Trunk接口转为二层端口。3 ）将Eth-Trunk端口配置为Trunk类型的端口，并允许所有VLAN帧通过。4）将成员口接入 Eth-Trunk 端口中。3、配置步骤1 ）配置 RouterA#创建Eth-Trunk接口，并配置允许通过的VLANRouterA interface eth-trunk 1 RouterA-Eth-Trunk1 portswitch RouterA-Eth-Trunk1 port link-type trunkRouterA-Eth-Trunk1 port trunk allow-pass vlan allRouterA-Eth-Trunk1 quit# 将接口 GE1/0/0、 GE2/0/0 加入到 Eth-Trunk 1 中 RouterA interface gigabitethernet 1/0/0 RouterA-GigabitEthernet1/0/0 undo shutdown RouterA-GigabitEthernet1/0/0 eth-trunk 1 RouterA-GigabitEthernet1/0/0 quitRouterA interface gigabitethernet 2/0/0RouterA-GigabitEthernet2/0/0 undo shutdown RouterA-GigabitEthernet2/0/0 eth-trunk 1 RouterA-GigabitEthernet2/0/0 quit2）配置 RouterB# 创建 Eth-Trunk 接口，并配置允许通过的 VLAN。 RouterB interface eth-trunk 1 RouterB-Eth-Trunk1 portswitch RouterB-Eth-Trunk1 port link-type trunk RouterB-Eth-Trunk1 port trunk allow-pass vlan all RouterB-Eth-Trunk1 quit# 将接口 GE1/0/0、 GE2/0/0 加入到 Eth-Trunk 1 中 RouterB interface gigabitethernet 1/0/0 RouterB-GigabitEthernet1/0/0 undo shutdown RouterB-GigabitEthernet1/0/0 eth-trunk 1 RouterB-GigabitEthernet1/0/0 quitRouterB interface gigabitethernet 2/0/0 RouterB-GigabitEthernet2/0/0 undo shutdown RouterB-GigabitEthernet2/0/0 eth-trunk 1RouterB-GigabitEthernet2/0/0 quit4、验证配置结果查看 Eth-Trunk1 的状态，以 RouterA 为例： display trunkmembership eth-trunk 1Trunk ID: 1used status: VALIDTYPE: ethernetWorking Mode : NormalWorking State: NormalNumber Of Ports in Trunk = 2Number Of UP Ports in Trunk = 2operate status: upInterface Ethernet1/0/0, valid, selected, operate up, weight=1,standby interface NULLInterface Ethernet2/0/0, valid, selected, operate up, weight=1,standby interface NULL用 display port vlan 命令查看 Eth-Trunk 端口上可以通过的 VLAN 信息。以 RouterA 为例 display port vlan Eth-Trunk 1Port Link Type PVID Trunk VLAN ListEth-Trunk1 trunk 0 1-40945、配置文件1)RouterA 的配置文件# sysname RouterAinterface Eth-Trunk1portswitchport link-type trunkport trunk allow-pass vlan 1 to 4094#interface GigabitEthernet1/0/0undo shutdowneth-trunk 1#interface GigabitEthernet2/0/0undo shutdowneth-trunk 1#return2)RouterB 的配置文件#sysname RouterB#interface Eth-Trunk1portswitchport link-type trunkport trunk allow-pass vlan 1 to 4094#interface GigabitEthernet1/0/0undo shutdowneth-trunk 1interface GigabitEthernet2/0/0undo shutdowneth-trunk 1#return二、三层 Eth-Trunk 接口配置实例1、组网结构和需求如下图所示，在RouterA与RouterB之间创建Eth-Trunk，将两个GE捆绑成一个Eth-Trunk,并在 Eth-Trunk 接口配上 IP 地址。2、配置思路采用如下的思路配置 Eth-Trunk：1）创建Eth-Trunk接口并配置IP地址。2）把以太网接口加入Eth-Trunk接口。3、配置步骤1 ）配置 RouterA#创建Eth-Trunk接口，并配置IP地址。RouterA interface eth-trunk 1RouterA-Eth-Trunk1 ip address 192.168.0.1 255.255.255.0RouterA-Eth-Trunk1 quit# 将接口 GE1/0/0、GE2/0/0 加入到 Eth-Trunk 1 中。RouterA interface gigabitethernet 1/0/0RouterA-GigabitEthernet1/0/0 undo shutdownRouterA-GigabitEthernet1/0/0 eth-trunk 1RouterA-GigabitEthernet1/0/0 quitRouterA interface gigabitethernet 2/0/0RouterA-GigabitEthernet2/0/0 undo shutdownRouterA-GigabitEthernet2/0/0 eth-trunk 1RouterA-GigabitEthernet2/0/0 quit2）配置 RouterB# 创建 Eth-Trunk 接口，并配置 IP 地址。RouterB interface eth-trunk 1RouterB-Eth-Trunk1 ip address 192.168.0.2 255.255.255.0RouterB-Eth-Trunk1 quit# 将接口 GE1/0/0、 GE2/0/0 加入到 Eth-Trunk 1 中。RouterB interface gigabitethernet 1/0/0RouterB-GigabitEthernet1/0/0 undo shutdownRouterB-GigabitEthernet1/0/0 eth-trunk 1RouterB-GigabitEthernet1/0/0 quitRouterB interface gigabitethernet 2/0/0RouterB-GigabitEthernet2/0/0 undo shutdownRouterB-GigabitEthernet2/0/0 eth-trunk 1RouterB-GigabitEthernet2/0/0 quit4、检查配置结果在RouterA或RouterB上执行display interface eth-trunk命令，可以看到接口状态为UP。以 RouterA 的显示为例。RouterA display interface eth-trunk 1Eth-Trunk1 current state : UPLine protocol current state : UPLast up time: 2011-01-13, 14:50:20Description : HUAWEI, Quidway Series, Eth-Trunk1 Interface, Route PortHash arithmatic : According to flowThe Maximum Transmit Unit is 1500 bytesInternet Address is 192.168.0.1/24IP Sending Frames Format is PKTFMT_ETHNT_2, Hardware address is 00e0-fc09-9722Physical is ETH_TRUNKLast 300 seconds input rate 0 bytes/sec, 0 packets/secLast 300 seconds output rate 0 bytes/sec, 0 packets/secInput: 1 packets,3 bytes,7 unicast,9 broadcast,8 multicasts10 errors,5 drops,11 unknowprotocol