最底层再用磊科的NS108去搞!现在用户少,以后用户大就麻烦了! sw_access_building3_a(config)#errdisable detect cause loopback
sw_access_building3_a(config)#errdisable recovery cause loopback
sw_access_building3_a(config)#errdisable recovery interval 30
sw_access_building3_a(config)#
000062: Apr7 20:28:02: %PM-4-ERR_RECOVER: Attempting to recover from loopback err-disabl
e state on Fa0/11
000063: Apr7 20:28:06: %LINK-3-UPDOWN: Interface FastEthernet0/11, changed state to up
000064: Apr7 20:28:07: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/11,
changed state to up
000065: Apr7 20:28:07: %ETHCNTR-3-LOOP_BACK_DETECTED: Keepalive packet loop-back detecte
d on FastEthernet0/11.
000066: Apr7 20:28:07: %PM-4-ERR_DISABLE: loopback error detected on Fa0/11, putting Fa0
/11 in err-disable state
000067: Apr7 20:28:08: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/11,
changed state to down
000068: Apr7 20:28:09: %LINK-3-UPDOWN: Interface FastEthernet0/11, changed state to down
sw_access_building3_a(config)#do sh err rec
ErrDisable Reason Timer Status
----------------- --------------
udld Enabled
bpduguard Enabled
security-violatio Disabled
channel-misconfig Enabled
vmps Enabled
pagp-flap Enabled
dtp-flap Enabled
link-flap Enabled
psecure-violation Disabled
gbic-invalid Disabled
dhcp-rate-limit Enabled
unicast-flood Disabled
loopback Enabled
Timer interval: 30 seconds
Interfaces that will be enabled at the next timeout:
Interface Errdisable reason Time left(sec)
--------- ----------------- --------------
Fa0/11 loopback 8
sw_access_building3_a(config)#
这样就不怕环路了,一旦发生环路就关闭端口,30秒之后再启用。顺藤摸瓜找到问题,拆掉问题。之后就一切正常了。 小狼 发表于 2011-4-7 20:40 static/image/common/back.gif
这样就不怕环路了,一旦发生环路就关闭端口,30秒之后再启用。顺藤摸瓜找到问题,拆掉问题。之后就一切正 ...
楼上的是什么交换机呢?
cisco吗 我遇到一次打雷后整个网络瘫痪, brqtpt007 发表于 2011-4-8 09:08 static/image/common/back.gif
我遇到一次打雷后整个网络瘫痪,
什么坏了,导致整个网络瘫痪呢? 学习了。。 为什么要Reply-only呢?如果不Reply-only,那会不会产生环路啊?如果不Reply-only,会有什么影响吗? 如果有环路的话,直接内网流量把端口堵死,连ROS都访问不了,从外网口访问,发现内网流量100%用完了 回复 tangdong 的帖子
同是做小区宽带的,我这里已经碰到两三次这种情况了,都是腾达311那个垃圾无线路由器引起的,所有交换机都隔离都没有用,直接阻塞上联端口,全部用户拔号678错误,操 tangdong 发表于 2011-4-5 04:23 static/image/common/back.gif
交换机划了端口隔离的也没用,碰上这种情况也照样死翘翘,一定要802.1Q的vlan,这样尽可能减少故障面积,我 ...
哎,思科知识忘记光了!
生成树协议SPT才有防环作用,VLAN只是分割广播域,减少广播风暴范围而已!
页:
1
[2]