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推荐阅读：2013年思科认证：CiscoCCNA考试精选试题汇总一

接上：

RT4(config)#errdisable recovery cause ?

all Enable timer to recover from all causes

arp-inspection Enable timer to recover from arp inspection error disable

state

bpduguard Enable timer to recover from BPDU Guard error disable

state

channel-misconfig Enable timer to recover from channel misconfig disable

state

dhcp-rate-limit Enable timer to recover from dhcp-rate-limit error

disable state

dtp-flap Enable timer to recover from dtp-flap error disable state

gbic-invalid Enable timer to recover from invalid GBIC error disable

state

l2ptguard Enable timer to recover from l2protocol-tunnel error

disable state

link-flap Enable timer to recover from link-flap error disable

state

loopback Enable timer to recover from loopback disable state

pagp-flap Enable timer to recover from pagp-flap error disable

state

psecure-violation Enable timer to recover from psecure violation disable

state

security-violation Enable timer to recover from 802.1x violation disable

state

storm-control Enable timer to recover from storm-control error disable

state

udld Enable timer to recover from udld error disable state

unicast-flood Enable timer to recover from unicast flood disable state

vmps Enable timer to recover from vmps shutdown error disable

state

默认的关闭时间是30秒，时间过后自动打开。可以通过命令RT4(config)#errdisable recovery interval<30-86400> timer-interval(sec)来调整这个时间。