Scheduled tor2 network maintenance - 18-Jul-2025

[porcupine]

Hi Folks,

Please be advised of the following maintenance window:

Maintenance Window: Friday July 18th, 2025, 11:00pm - Saturday July 19th 2025 3:00am Eastern time
Facility: Tor2
Affected Device(s): core04.tor2, Zayo_Transit
Affected Services: Tor2 core network/routing
Service Impacting: Yes - Tor2 network customers should expect to see short/intermittent connectivity losses throughout the maintenance window.

Details: As part of our efforts to modernize our core network and increase the availability of cost effective bandwidth, we will be upgrading/replacing the legacy core04.tor2 router with a new, considerably more powerful device. As the hardware platform is moving from Cisco IOS to Juniper JunOS, this upgrade requires a full rewrite of the routers configuration.

The new router has undergone extensive testing, with substantial portions of the configuration pre-written, and tested to the extent possible outside of the live environment. The new unit however still needs to be integrated into the Tor2 network; BGP customers, internal links, and our Zayo transit circuit all need to be moved to the new device.

We anticipate most customers in the Tor2 facility will experience several short/intermittent connectivity losses throughout the event, as these changes are implemented.

Customers who perform their own BGP routing, and are directly connected to the core04.tor2 router will see longer connectivity disruptions within this window as their physical ports/logical sessions/etc. are migrated.

Regards,