Advanced Upstream Blog Series Introduction In the Advanced Upstream blog series we will explore how cable operators have traditionally managed upstream bandwidth capacity planning, how market dynamics and technical innovation are driving changes, and where things are likely headed in the coming years. In this entry we will discuss the “More Bits/Hz” approach – or how […]
With the rollout of 5G, synchronization in carrier networks is becoming even more critical. Mobile cellular networks need to be synchronized to avoid base stations with shared coverage interfering and disrupting each other, leading to declining network quality for customers. Throughout the Third Generation (3G) cellular communications, the NodeBs relied on satellite communications for synchronization, […]
A global movement toward 800G has begun as operators and network vendors position to address new data demands. Read about how early test solutions are meeting an important need but must flexibly evolve with standards and overcome early complexity up and down the network stack. Though 400 Gigabit Ethernet (400G) is still working its way […]
VIAVI is honored to have received approval from the PCI Special Interest Group (PCI-SIG). The PCI-SIG® is a consortium of more than 800 member companies that owns and manages PCI specifications as open industry standards. This approval allows the VIAVI Xgig® Exerciser to be used for PCIe® Link and Transaction protocol compliance testing conducted by […]
By disguising the exploits at the point of delivery, malicious attackers can avoid detection, making security platforms and policies ineffective. Stay one step ahead of hackers with CyberFlood and CyberThreat Assessment. Malicious attackers are not necessarily all experts in malware manipulation, PowerShell, or other tools trying to constantly come up with new and innovative ways […]
Open Radio Access Network (O-RAN) is being adopted by service providers and equipment manufacturers to reduce infrastructure deployment costs and to lower the barrier of integrating innovative product developments. Read about the advantages and challenges emerging in that process, and how testing helps speed up O-RAN deployment. In O-RAN, the distributed unit (DU) is connected […]
Cable operators globally recognize that tight networks simply work better, and signal leakage is the best way to detect, find, and fix the shielding weaknesses which let undesirable upstream ingress into networks. Leakage monitoring has adapted with the evolving HFC to remain feasible and maximize effectiveness, but the migration to a 204MHz upstream with high-split networks […]
As organizations seek to grow their business, the information they have access to grows as well. Meanwhile, increasing demands around data security put even more importance on having a proactive security solution in place. Organizations are striving to achieve revenue increases, accelerate digital transformations, and comply with regulatory mandates – all while keeping customer loyalties […]
Network observability is more than just the capture of wire data. True network observability means understanding the how and why of network performance in support of business goals – all while delivering the right data as actionable metrics. In the recent VIAVI Perspectives blog, 5 Steps to Network Observability Checklist, the critical and actionable network […]
Much like 4G has opened up the possibilities of ride-sharing, remote working, and online shopping, 5G is predicted to extraordinarily alter our lifestyles – from how we live, work, and play. Although the full extent of the changes that the 5G network will bring is not fully understood, it is common knowledge that 5G will […]
 Splits – Signal Leakage in High-Split Cable Networks){kind=link}
