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      學(xué)習(xí)啦>學(xué)習(xí)電腦>網(wǎng)絡(luò)知識(shí)>路由器>路由器設(shè)置>cisco思科>

      如何解決cisco的端口顯示err-disable1

      時(shí)間: 權(quán)威724 分享

        Cisco依靠自身的技術(shù)和對(duì)網(wǎng)絡(luò)經(jīng)濟(jì)模式的深刻理解,成為了網(wǎng)絡(luò)應(yīng)用的成功實(shí)踐者之一,那么你知道如何解決cisco的端口顯示err-disable1嗎?下面是學(xué)習(xí)啦小編整理的一些關(guān)于如何解決cisco的端口顯示err-disable1的相關(guān)資料,供你參考。

        解決cisco的端口顯示err-disable1的方法

        導(dǎo)致這樣的情況可能是因?yàn)榫€路不通,物理指示燈滅或者顯示為橙色(不同平臺(tái)指示燈狀態(tài)不同)

        show interface 輸出顯示接口狀態(tài):

        FastEthernet0/47 is down, line protocol is down (err-disabled)

        接口狀態(tài)是err-disable.

        sw1#show interfaces status

        Port Name Status Vlan Duplex Speed Type

        Fa0/47 err-disabled 1 auto auto 10/100BaseTX

        如果出現(xiàn)了接口狀態(tài)為err-disable,show interfaces status err-disabled命令能查看觸發(fā)err-disable的原因。

        下面示例原因?yàn)閎pduguard,在連接了交換機(jī)的端口配置了spanning-tree bpduguard enable.

        sw1#show interfaces status err-disabled

        Port Name Status Reason

        Fa0/47 err-disabled bpduguard

        接口產(chǎn)生err-disable的原因可以由以下的命令來查看,系統(tǒng)缺省的配置是所有列出的原因都能導(dǎo)致接口被置為err-disable.

        sw1#show errdisable detect

        ErrDisable Reason Detection status

        ----------------- ----------------

        udld Enabled

        bpduguard Enabled

        security-violatio Enabled

        channel-misconfig Enabled

        psecure-violation Enabled

        dhcp-rate-limit Enabled

        unicast-flood Enabled

        vmps Enabled

        pagp-flap Enabled

        dtp-flap Enabled

        link-flap Enabled

        l2ptguard Enabled

        gbic-invalid Enabled

        loopback Enabled

        dhcp-rate-limit Enabled

        unicast-flood Enabled

        從列表中,我們可以看出常見的原因有udld,bpduguard,link-flap以及l(fā)oopback等。

        具體由什么原因?qū)е庐?dāng)前接口err-disable可以由show interface status err-disable來查看。

        在接口模式下采用shutdown,no shutdown進(jìn)行手動(dòng)的激活。

        在缺省配置下,一旦接口被置為err-disable,IOS將不會(huì)試圖恢復(fù)接口。

        這個(gè)可以由show errdisable recovery來查看,timer status下面所有的值都是disable.

        下面的示例中,由于手工配置了bpduguard恢復(fù),所以timer status的值變?yōu)镋nable.

        sw1#show errdisable recovery

        ErrDisable Reason Timer Status

        ----------------- --------------

        udld Disabled

        bpduguard Enabled

        security-violatio Disabled

        channel-misconfig Disabled

        vmps Disabled

        pagp-flap Disabled

        dtp-flap Disabled

        link-flap Disabled

        l2ptguard Disabled

        psecure-violation Disabled

        gbic-invalid Disabled

        dhcp-rate-limit Disabled

        unicast-flood Disabled

        loopback Disabled

        Timer interval: 300 seconds

        Interfaces that will be enabled at the next timeout:

        Interface Errdisable reason Time left(sec)

        --------- ----------------- --------------

        Fa0/47 bpduguard 217

        配置IOS重新激活errdisable的接口,使用以下命令:

        sw1(config)#errdisable recovery cause bpduguard

        sw1(config)#errdisable recovery cause ?

        all Enable timer to recover from all causes

        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 detected 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

        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

        配置完上述命令后,IOS在一段時(shí)間后試圖恢復(fù)被置為err-disable的接口,這段時(shí)間缺省為300秒。

        但是,如果引起err-disable的源沒有根治,在恢復(fù)工作后,接口會(huì)再次被置為err-disable.

        調(diào)整err-disable的超時(shí)時(shí)間,可以使用以下命令:

        sw1(config)#errdisable recovery interval ?

        <30-86400> timer-interval(sec)

        可以調(diào)整在30-86400秒,缺省是300秒。

        如果產(chǎn)生err-disable的原因是udld,下面有一條命令非常管用:

        sw1#udld reset

        No ports are disabled by UDLD.

        解決端口出現(xiàn)err-disabled問題

        關(guān)于接口處于err-disable的故障排查

        故障癥狀:

        線路不通,物理指示燈滅或者顯示為橙色(不同平臺(tái)指示燈狀態(tài)不同)

        show interface 輸出顯示接口狀態(tài):

        FastEthernet0/47 is down, line protocol is down (err-disabled)

        接口狀態(tài)是err-disable.

        sw1#show interfaces status

        Port Name Status Vlan Duplex Speed Type

        Fa0/47 err-disabled 1 auto auto 10/100BaseTX

        如果出現(xiàn)了接口狀態(tài)為err-disable,show interfaces status err-disabled命令能查看觸發(fā)err-disable的原因。

        下面示例原因?yàn)閎pduguard,在連接了交換機(jī)的端口配置了spanning-tree bpduguard enable.

        sw1#show interfaces status err-disabled

        Port Name Status Reason

        Fa0/47 err-disabled bpduguard

        接口產(chǎn)生err-disable的原因可以由以下的命令來查看,系統(tǒng)缺省的配置是所有列出的原因都能導(dǎo)致接口被置為err-disable.

        sw1#show errdisable detect

        ErrDisable Reason Detection status

        ----------------- ----------------

        udld Enabled

        bpduguard Enabled

        security-violatio Enabled

        channel-misconfig Enabled

        psecure-violation Enabled

        dhcp-rate-limit Enabled

        unicast-flood Enabled

        vmps Enabled

        pagp-flap Enabled

        dtp-flap Enabled

        link-flap Enabled

        l2ptguard Enabled

        gbic-invalid Enabled

        loopback Enabled

        dhcp-rate-limit Enabled

        unicast-flood Enabled

        從列表中,我們可以看出常見的原因有udld,bpduguard,link-flap以及l(fā)oopback等。

        具體由什么原因?qū)е庐?dāng)前接口err-disable可以由show interface status err-disable來查看。

        在接口模式下采用shutdown,no shutdown進(jìn)行手動(dòng)的激活。

        在缺省配置下,一旦接口被置為err-disable,IOS將不會(huì)試圖恢復(fù)接口。

        這個(gè)可以由show errdisable recovery來查看,timer status下面所有的值都是disable.

        下面的示例中,由于手工配置了bpduguard恢復(fù),所以timer status的值變?yōu)镋nable.

        sw1#show errdisable recovery

        ErrDisable Reason Timer Status

        ----------------- --------------

        udld Disabled

        bpduguard Enabled

        security-violatio Disabled

        channel-misconfig Disabled

        vmps Disabled

        pagp-flap Disabled

        dtp-flap Disabled

        link-flap Disabled

        l2ptguard Disabled

        psecure-violation Disabled

        gbic-invalid Disabled

        dhcp-rate-limit Disabled

        unicast-flood Disabled

        loopback Disabled

        Timer interval: 300 seconds

        Interfaces that will be enabled at the next timeout:

        Interface Errdisable reason Time left(sec)

        --------- ----------------- --------------

        Fa0/47 bpduguard 217

        配置IOS重新激活errdisable的接口,使用以下命令:

        sw1(config)#errdisable recovery cause bpduguard

        sw1(config)#errdisable recovery cause ?

        all Enable timer to recover from all causes

        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 detected 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

        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

        配置完上述命令后,IOS在一段時(shí)間后試圖恢復(fù)被置為err-disable的接口,這段時(shí)間缺省為300秒。

        但是,如果引起err-disable的源沒有根治,在恢復(fù)工作后,接口會(huì)再次被置為err-disable.

        調(diào)整err-disable的超時(shí)時(shí)間,可以使用以下命令:

        sw1(config)#errdisable recovery interval ?

        <30-86400> timer-interval(sec)

        可以調(diào)整在30-86400秒,缺省是300秒。

        如果產(chǎn)生err-disable的原因是udld,下面有一條命令非常管用:

        sw1#udld reset

        No ports are disabled by UDLD.

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