On December 19, 2020, Network Services will begin a phased approach to replacing a core router chassis at Anderson.
On Saturday, Dec. 19, from 1:00 a.m. to 6:59 a.m., the Network Services team will begin a phased approach to replacing a core router chassis at Anderson. This maintenance is essential, as we are currently running at reduced capacity and a complete failure could result in extended campus network outage.
In order to minimize the impact to campus, we’re breaking this maintenance into three phases during the approved maintenance window:
- Phase 1: Sat. Dec. 19 from 1:00 a.m. – 6:59 a.m. — We’ll manually begin transitioning network traffic to the other campus core router, located in CSB-1. After the Anderson core router’s traffic is rerouted to remove the failing equipment, and we maintain service with the redundant router, we’ll monitor it closely for any impact before moving to the next phase. We expect that users will not notice any disruption to services, as there should be no impact to network traffic during this phase.
- Phase 2: Mon. Dec 21, from 1:00 a.m. to 6:59 a.m. — We’ll shut down and replace the failing core router chassis at Anderson. We’ll monitor its performance once the new core router chassis has been installed. As all network traffic was set in Phase 1 to bypass the core router chassis we’re replacing, we don’t anticipate any impact to network services. During this time, we’ll be running with no redundancy while we’re physically replacing the chassis. In the unlikely event that the CSB-1 core router happens to fail during the Anderson replacement, we’ll restore service to the Anderson core router, and reassess the implementation.
- Phase 3: Tues. Dec 22, from 1:00 a.m. to 6:59 a.m. — We’ll activate the new router, then begin rerouting network traffic back to the new core router at Anderson. As before, we’ll be monitoring the performance closely to watch for any impact to our network. No impact is expected as network traffic is routed back to its primary path.
Post-validation testing will be performed by Network Services.
For more details or help, please contact IT Services - Network Services at (310) 206-5345 or noc@ucla.edu
