SW_MATM-4-MACFLAP_NOTIF 这种故障如何解决？

qdigrp

回复 238# shibafei


    启用这两条命令的目的是什么呢？

qdigrp

回复 238# shibafei


    根端口或替换端口，这两个端口都要启用如下的命令吗？

qdigrp

回复 238# shibafei

还有，请问，如果按照你的方法去实施的话，那么做ethernal 通道的几台三层交换机相关的端口是否也要配以上两个命令？

shibafei

回复楼主

qdigrp

从这幅图上看，我可不可以理解为不是光口的备份端口都要启用udld?包括做ethernal 端口！

linuxflj

在核心交换机上配置pvst.hstp
如果Vlan多的话要用上mst
pvst:
spanning-tree vlan [vlan-id] root primary/secondary
vlan-id : Vlan的编号
primary :主根
secondary : 备份根

hstp:
配置虚拟网关：
standby [自定义组号] ip [虚拟网关]

配置优先级：
standby [组号] priority [优先值0-255]
优先级高的成为活跃路由器

配置占抢权：
standby [组号] preempt

端口跟踪：
standby [组号] track [端口号] [优先级]

shibafei

恢复楼主是这个意思

shibafei

楼主其实只要你在根端口和替代端口上开启loop guard也可以解决你目前的这个问题

qdigrp

开启之后，以出现以下的错误信息：
00:09:54: %PM-4-ERR_DISABLE: udld error detected on Gi1/0/2, putting Gi1/0/2 in err-disable state
00:09:55: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/2, changed state to down
00:09:56: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, changed state to down
04:56:58: %UDLD-4-UDLD_PORT_DISABLED: UDLD disabled interface Gi1/0/4, aggressive mode failure detected
04:56:58: %PM-4-ERR_DISABLE: udld error detected on Gi1/0/4, putting Gi1/0/4 in err-disable state
04:56:59: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/4, changed state to down
04:57:00: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/4, changed state to down
08:32:19: %UDLD-4-UDLD_PORT_DISABLED: UDLD disabled interface Gi1/0/3, unidirectional link detected
08:32:19: %PM-4-ERR_DISABLE: udld error detected on Gi1/0/3, putting Gi1/0/3 in err-disable state
08:32:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/3, changed state to down
08:32:21: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/3, changed state to down
23:09:31: %UDLD-6-UDLD_PORT_RESET: UDLD reset interface Gi1/0/2
23:09:31: %PM-4-ERR_RECOVER: Attempting to recover from udld err-disable state on Gi1/
从而会导致该端口down掉

shibafei

把UDLD去掉