Network Engineers, working in tandem with the hardware vendor, have
identified an issue on customer routers which provides connectivity for
your server(s) and back-end services. To prevent an unplanned outage
resulting in significant downtime, Engineers will be performing firmware
upgrades during a scheduled maintenance window.
During this maintenance, all servers in this datacenter will initially
experience a disruption in back-end services on the private network, such
as DNS resolution, iSCSI, NAS, data backup, and SSL/PPTP/IPSec managed VPN
access to servers while the MBR (master back-end router) is rebooted for
upgrade. Servers in the first "Pod" (behind fcr01/bcr01) will also
experience a disruption of back-end private and front-end public network
connectivity, and back-end private network connectivity to servers in
other pods will also be disrupted the initial step of this maintenance.
Afterward, servers in other Pods (behind the respective router pairs
listed below) will experience a disruption of both back-end private and
front-end public, network connectivity as those routers are rebooted in
the following sequence: