华为交换机配置Eth-Trunk接口流量本地优先转发示例（堆叠）
华为交换机配置Eth-Trunk接口流量本地优先转发示例（堆叠）
本文详细介绍了华为交换机配置Eth-Trunk接口流量本地优先转发的示例，主要涉及堆叠设备的配置。文章内容包括组网需求说明、配置思路和具体的操作步骤，还提供了配置文件供参考。文章结构清晰，内容完整，具有较高的实用性和技术价值。
组网需求
说明
S5720I-10X-PWH-SI-AC和S5720I-6X-PWH-SI-AC不支持此配置。
如图3-23所示，为了增加设备的容量采用设备堆叠技术，将Switch3和Switch4通过专用的堆叠电缆链接起来，对外呈现为一台逻辑交换机。为了实现设备间的备份、提高可靠性，采用跨堆叠设备Eth-Trunk接口技术，将不同设备上的物理接口加入同一个Eth-Trunk接口。在网络无任何故障情况下，在PE设备上查看成员口信息时，发现VLAN2的数据流量会通过成员口GE1/0/1和GE1/0/2转发，VLAN3的数据流量通过成员口GE1/0/1和GE1/0/2转发。增加了堆叠设备之间的带宽承载能力，也降低了流量转发效率。为了有效保证VLAN2的数据流量通过成员口GE1/0/1转发，VLAN3的数据流量通过成员口GE1/0/2转发，可在堆叠设备上使能Eth-Trunk接口流量本地优先转发功能。
配置思路
采用如下的思路配置Eth-Trunk接口流量本地优先转发功能：
1.创建Eth-Trunk接口。
2.加入Eth-Trunk的成员接口。
3.使能Eth-Trunk接口流量本地优先转发功能。
4.配置各接口加入相应VLAN，实现二层互通。
操作步骤
步骤1创建Eth-Trunk接口，并配置允许通过的VLAN
#配置Stack。
[HUAWEI]sysname Stack
[Stack]interface eth-trunk 10
[Stack-Eth-Trunk10]port link-type trunk
[Stack-Eth-Trunk10]port trunk allow-pass vlan all
[Stack-Eth-Trunk10]undo port trunk allow-pass vlan 1
[Stack-Eth-Trunk10]quit
#配置PE。
[HUAWEI]sysname PE
[PE]interface eth-trunk 10
[PE-Eth-Trunk10]port link-type trunk
[PE-Eth-Trunk10]port trunk allow-pass vlan all
[PE-Eth-Trunk10]undo port trunk allow-pass vlan 1
[PE-Eth-Trunk10]quit
步骤2加入Eth-Trunk的成员接口
#配置Stack。
[Stack]interface gigabitethernet 1/0/4
[Stack-GigabitEthernet1/0/4]eth-trunk 10
[Stack-GigabitEthernet1/0/4]quit
[Stack]interface gigabitethernet 2/0/4
[Stack-GigabitEthernet2/0/4]eth-trunk 10
[Stack-GigabitEthernet2/0/4]quit
#配置PE。
[PE]interface gigabitethernet 1/0/1
[PE-GigabitEthernet1/0/1]eth-trunk 10
[PE-GigabitEthernet1/0/1]quit
[PE]interface gigabitethernet 1/0/2
[PE-GigabitEthernet1/0/2]eth-trunk 10
[PE-GigabitEthernet1/0/2]quit
步骤3在堆叠设备上使能Eth-Trunk接口流量本地优先转发功能
对于S2730S-S、S5735-L-I、S5735-L1、S300、S5735-L、CloudEngine S5735S-L1、
S5735S-L、S5735-S、S5735S-S、S5735S-L-M、S500：
[Stack]local-preference enable
对于除S2730S-S、S5735-L-I、S5735-L1、S300、S5735-L、CloudEngine S5735S
L1、S5735S-L、S5735-S、S5735S-S、S5735S-L-M、S500之外的设备：
[Stack]interface eth-trunk 10
[Stack-Eth-Trunk10]local-preference enable
[Stack-Eth-Trunk10]quit
步骤4配置二层转发功能
#配置Stack。
[Stack]vlan batch 2 3
[Stack]interface gigabitethernet 1/0/3
[Stack-GigabitEthernet1/0/3]port link-type trunk
[Stack-GigabitEthernet1/0/3]port trunk allow-pass vlan 2
[Stack-GigabitEthernet1/0/3]undo port trunk allow-pass vlan 1
[Stack-GigabitEthernet1/0/3]quit
[Stack]interface gigabitethernet 2/0/3
[Stack-GigabitEthernet2/0/3]port link-type trunk
[Stack-GigabitEthernet2/0/3]port trunk allow-pass vlan 3
[Stack-GigabitEthernet2/0/3]undo port trunk allow-pass vlan 1
[Stack-GigabitEthernet2/0/3]quit
#配置Switch1。
[HUAWEI]sysname Switch1
[Switch1]vlan 2
[Switch1-vlan2]quit
[Switch1]interface gigabitethernet 0/0/1
[Switch1-GigabitEthernet0/0/1]port link-type trunk
[Switch1-GigabitEthernet0/0/1]port trunk allow-pass vlan 2
[Switch1-GigabitEthernet0/0/1]undo port trunk allow-pass vlan 1
[Switch1-GigabitEthernet0/0/1]quit
[Switch1]interface gigabitethernet 0/0/2
[Switch1-GigabitEthernet0/0/2]port link-type trunk
[Switch1-GigabitEthernet0/0/2]port trunk allow-pass vlan 2
[Switch1-GigabitEthernet0/0/2]undo port trunk allow-pass vlan 1
[Switch1-GigabitEthernet0/0/2]quit
#配置Switch2。
[HUAWEI]sysname Switch2
[Switch2]vlan 3
[Switch2-vlan3]quit
[Switch2]interface gigabitethernet 0/0/1
[Switch2-GigabitEthernet0/0/1]port link-type trunk
[Switch2-GigabitEthernet0/0/1]port trunk allow-pass vlan 3
[Switch2-GigabitEthernet0/0/1]undo port trunk allow-pass vlan 1
[Switch2-GigabitEthernet0/0/1]quit
[Switch2]interface gigabitethernet 0/0/2
[Switch2-GigabitEthernet0/0/2]port link-type trunk
[Switch2-GigabitEthernet0/0/2]port trunk allow-pass vlan 3
[Switch2-GigabitEthernet0/0/2]undo port trunk allow-pass vlan 1
[Switch2-GigabitEthernet0/0/2]quit
步骤5检查配置结果
上述配置成功后，在任意视图下执行命令display trunkmembership eth-trunk，可
以看到Eth-Trunk接口的成员口信息。例如：
以Stack的显示为例。
Trunk ID: 10
Used status: VALID
TYPE: ethernet
Working Mode : Normal
Number Of Ports in Trunk = 2
Number Of Up Ports in Trunk = 2
Operate status: up
Interface GigabitEthernet1/0/4, valid, operate up, weight=1
Interface GigabitEthernet2/0/4, valid, operate up, weight=1
----结束**
配置文件
● Stack的配置文件
sysname Stack
vlan batch 2 3
interface Eth-Trunk10
port link-type trunk
undo port trunk allow-pass vlan 1
port trunk allow-pass vlan 2 to 4094
interface GigabitEthernet1/0/3
port link-type trunk
undo port trunk allow-pass vlan 1
port trunk allow-pass vlan 2
interface GigabitEthernet2/0/3
port link-type trunk
undo port trunk allow-pass vlan 1
port trunk allow-pass vlan 3
interface GigabitEthernet1/0/4
eth-trunk 10
interface GigabitEthernet2/0/4
eth-trunk 10
return
● PE的配置文件
sysname PE
interface Eth-Trunk10
port link-type trunk
undo port trunk allow-pass vlan 1
port trunk allow-pass vlan 2 to 4094
interface GigabitEthernet1/0/1
eth-trunk 10
interface GigabitEthernet1/0/2
eth-trunk 10
return
● Switch1的配置文件
sysname Switch1
vlan batch 2
interface GigabitEthernet0/0/1
port link-type trunk
undo port trunk allow-pass vlan 1
port trunk allow-pass vlan 2
interface GigabitEthernet0/0/2
port link-type trunk
undo port trunk allow-pass vlan 1
port trunk allow-pass vlan 2
return
● Switch2的配置文件
sysname Switch2
vlan batch 3
interface GigabitEthernet0/0/1
port link-type trunk
undo port trunk allow-pass vlan 1
port trunk allow-pass vlan 3
interface GigabitEthernet0/0/2
port link-type trunk
undo port trunk allow-pass vlan 1
port trunk allow-pass vlan 3
return