Work summary
Software will be upgraded using the In-Service Software Upgrade process (ISSU) which allows the routers to be upgraded while serving live traffic. Unfortunately there are a small number of edge switches connected to one router so there will be total loss of network connectivity during the upgrade process. For those switches not covered by the ISSU process there will be 10-13mins loss of network connectivity (wired and wireless)
Technical summary
KBS-DRT Router Software Upgrade
Affecting
Kings Building Campus - Network Connectivity
Servers / Hardware
Network
Impact description
he vast majority of edge switches are connected to both routers in the DRT pair. Which means a process called In-Service Software Upgrade can be used to upgrade the DRT without complete loss of network connectivity. Unfortunately there are a small number of edge switches connected to one router so there will be total loss of network connectivity during the upgrade process. For those switches not covered by the ISSU process there will be 10-13mins loss of network connectivity (wired and wireless).
Outage
Kitchener House (Student Accommodation)
David Horn House (Student Accommodation)
Orrok Lane (Student Accommodation)
KBboilerhouse
Request, Authorise and Publish
Requested by Fraser McKenzie on 24-Mar-2023
Authorised by CIS
Publish to IS Website (Service Status and Alerts page):
Yes
Published by
Fraser McKenzie
Additional Details
Risk assessment
Router software has be deployed on all the other routers.
Notes for future reference