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Performance Networks / Case Studies / Leasing Company HQ Network Fault find Audit

Leasing Company HQ Network Fault find Audit

The customer was having issues during a migration from a Cisco switched infrastructure to a new Dell setup. One of our IT partners engaged Performance Networks to resolve the issue.

The Remit

The customer was having issues during a migration from a Cisco switched infrastructure to a new Dell setup. One of our IT partners engaged Performance Networks to resolve the issue.

Some devices weren’t working at all & some not as expected – Mainly their Mitel Phones though. Performance Networks were called in to fix this and advise on the best way to migrate without downtime.

The Process

We initially spent 2 days onsite mapping out the network layout.
Then reviewed all the switch/WiFi & Firewall configurations. All appeared good.
But the Voice VLAN switchport configuration wasn’t working through the new Dell switches.

So further investigation was required.

It turned out a switchport mode that was valid on a previous firmware version was no longer valid on the current firmware(dell also had more modes than other vendors(say HP or Cisco)

The Results

A change of switchport mode fixed the Mitel phone issues.
A few other configuration recommendations also sorted some sub-optimal switching & routing.

A full Visio diagram was provided showing the current physical & logical layout.

David Ballard
Director at Performance Networks

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