A complex environment produces some too-strange-to-be-true type of issues. Yesterday was one of those days. Let me try to set this up like a script from a play.
A non-descript server room somewhere in the greater New York City area.
A generic security appliance we’ll call ThousandEyes PX, just to make up a name.
Cisco Nexus 7K plus a FEX
Dr John – the protagonist
PCT – a generic network vendor
Florence Ranjard – an admin of ThousandEyes PX in France
Shake Abel – a server room resource in PA
Cloud Johnson – someone in Request Management
Bill Otto – a network guy at heart, forced to deal with his now vendor-managed network via ITIL
ITIL – look it up
An email from Dr John….
Well that’s messed up, as they say. I wouldn’t believe it if I hadn’t seen it for myself. Someone, “stole” our port and assigned it to a different device on a different vlan – despite the fact that it was in active use!
I guess I will try to “steal” it back, assuming I can find the IT Catalog article, or maybe with the help of Cloud.
Fortunately I have console access to the Fireeye. I artificially introduced traffic, which I see reflected in the port statistics. So I know the ThousandEyes is still connected to this port, despite the wrong vlan and description.
One Week earlier
Siting at home due to Covid, Florence realizes she can no longer access the management port of her group’s ThousandEyes security appliance located in another continent. She beings to investigate and even contacts the vendor…
This exciting script is to be contiued, hopefully