华三交换机堆叠设置BFD的两种方法，升级版本的步骤

一、设置BFD

1、使用三层口设置

int route-aggregation 1024 #创建三层聚合口

interface GigabitEthernet1/0/24

port mode-route

port link-aggregation group 1024

interface GigabitEthernet2/0/24

port mode-route

port link-aggregation group 1024

int route-aggregation 1024

mad bfd enable

mad ip address 1.1.1.1 255.255.255.252 member 1

mad ip address 1.1.1.2 255.255.255.252 member 2

2、使用二层口设置

vlan 4094

description bfd

interface vlan 4094

mad bfd enable

mad ip address 1.1.1.1 255.255.255.252 member 1

mad ip address 1.1.1.2 255.255.255.252 member 2

interface GigabitEthernet1/0/24

port access vlan 4094

undo stp enable #BFD和stp冲突，需关闭stp

interface GigabitEthernet2/0/24

port access vlan 4094

undo stp enable

二、升级