"In a white paper explaining the nature of the partnership, the firms note that modern networks demand more than simple redundancy; they demand true resilience engineered into every layer. Moreover, they say disruptions in complex optical networks result not just from hardware faults, but from human error, misconfigurations, automation glitches or unexpected maintenance impacts, any of which can disable even the most robust transport infrastructure."
"Ciena says optical networks are more intelligent, faster and programmable than ever, with automation and software control having provided unmatched flexibility and scale. But with this progress comes added risk: one misconfigured automation roll-out, a fibre cut and equipment failure, unintended policy change, or mismatched software version can take down an entire optical domain. Events like these do not happen often, but their effects can be severe, and making sure network designs consider such events is critical."
Microsoft and Ciena defined a zero-trust tiered optical network architecture that pairs two fully independent optical systems to sustain uninterrupted services during systemic failures. The design pairs a ROADM-based transport network with an optical BCDR layer that are tied only at the routed Ethernet edge to avoid shared failure modes. The architecture targets risks beyond hardware faults, including human error, misconfigurations, automation glitches and maintenance impacts. Key benefits include human error isolation, maintenance flexibility, zero-downtime seamless experience and bandwidth flexibility, supporting 10G/100G/400G services across ROADM and channel multiplexer/demultiplexer systems.
Read at ComputerWeekly.com
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