What's Happening?

We will be performing firmware upgrades on Cisco access Switches in racks A3 & A4 to patch a recently discovered CVE vulnerability. 

These works are scheduled to take place on 08-March-2025, starting at 03:30 AM.

What's the impact?

Switches will continue to pass traffic while the new firmware is installed. Once complete, they will reload, which will take approximately 5 minutes. During this time, network connectivity will be unavailable. 

Switches will be updated sequentially, to minimise disruption.

Customers who take redundant Layer 3 connectivity from us will failover to their backup uplinks automatically.

We will cull BGP sessions for customers who advertise their routes to us using BGP before starting the upgrade process. This will gracefully route traffic away from the affected uplinks.