Re: Err-disable

Just to add to what all have said ;

Diff switches models have different err-disable detect and recovery .. You
must look in what your switch is supporting ..

For example c3750 might do following :

#show errdisable detect

ErrDisable Reason Detection status
----------------- ----------------
udld Enabled
bpduguard Enabled
security-violatio Enabled
channel-misconfig Enabled
psecure-violation Enabled
unicast-flood Enabled
vmps Enabled
loopback Enabled
unicast-flood Enabled
pagp-flap Enabled
dtp-flap Enabled
link-flap Enabled
l2ptguard Enabled
sfp-config-mismat Enabled
gbic-invalid Enabled
dhcp-rate-limit Enabled
storm-control Enabled
inline-power Enabled
arp-inspection Enabled
community-limit Enabled
invalid-policy Enabled

While c45xx can do much more error detection .

Hope that helps :)

Gaurav Madan
CCIE .

On Fri, May 13, 2011 at 10:30 PM, Christian Hunter <stasis416_at_gmail.com>wrote:

> If its via port-security I believe in the log it will tell you if
> there has been a MAC address violation. You can verify this against
> your current arp table, trace out the MAC address of the newly
> connected device and see what is now connected, etc.. this is how I've
> done it in the past for port-security violations.
>
> Like Ziyad said, need to check and see what features you have enabled.
>
> -Christian
>
> On Fri, May 13, 2011 at 2:20 PM, Pablo Bonilla <pablobr15_at_gmail.com>
> wrote:
> > Hi Amin,
> >
> > This is an example off how to verify the cause:
> >
> >
> > Rack1SW1#sh interfaces f0/20 status err-disabled
> >
> > Port Name Status Reason
> > Fa0/20 err-disabled bpduguard
> >
> >
> > In the previous example the cause is a Bpduguard violation but the are
> many
> > others (channel-misconfig,psecure-violation,storm-control ...)
> >
> >
> >
> > Regards,
> >
> > Pablo.
> >
> >
> >
> > On Fri, May 13, 2011 at 9:52 AM, Amin <amin_at_axizo.com> wrote:
> >
> >> Hi experts,
> >>
> >> How I can verify the cause of putting the switch port in err-disable?
> >>
> >> Regards,
> >>
> >> Amin
> >>
> >>
> >>
> >>
> >>
> >> Amin
> >>
> >> AXIZO.COM
> >>
> >> Previously name Horizon
> >>
> >> ' +970-2-2988128 | 7 +970-2-2988128 |P +970-59-9367950 | .
> >> <mailto:gila_at_lan-tech.co.il> amin_at_axizo.com
> >>
> >>
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Received on Fri May 13 2011 - 23:20:22 ART