Planned core network changes and impacts: March 17 and April 28

Tuesday, February 27, 2024

The following two significant changes have been scheduled as part of the Core Network Update project.  
Any questions or concerns regarding this work should be submitted via the IST Help Portal.

Change one 

Subject: Core routing modification 

Description: A direct link between the external routers will be enabled, BGP (Border Gateway Protocol) will be removed from the core switches, full BGP tables will be enabled for use on the external routers.  OSPF (Open Shortest Path First) default route origination will be moved to the external routers. 

Date: Sunday, March 17, between 9:00 a.m. and 1:00 p.m. 

Expected Impact: Periodic brief internet service interruptions while routing protocols recalculate. 

Change two 

Subject: Core equipment migration 

Description: The distribution network routers serving Wi-Fi, campus buildings, and residence buildings will have their uplinks migrated so that they are connected to the new aggregate distribution router. Traffic will route through the new core switches and firewalls. This is an intermediate step required to ease the migration of individual building connections, which will take place at a future date. 

Date: Sunday, April 28, between 9:00 a.m. and 3:00 p.m. 

Expected Impact: Internet bound traffic will be interrupted several times during the service window (for several minutes each time) for all wired and wireless traffic.