TIP Spells Out What WAN SDN Controllers MUST Do

Emir Halilovic, Principal Analyst

Summary Bullets:

  • TIP MUST intends to accelerate SDN adoption in the WAN by defining requirements for WAN SDN based on real-life operator use cases.
  • The resulting architecture is open and will likely help fill the gap most vendors are unwilling or unable to address: the hierarchical controller space.

From the onset of attempts to implement SDN into telco WAN infrastructure, operators have faced two obstacles that severely limited its usefulness: lack of multi-vendor support and inability to control legacy environments. Telco equipment vendors have not been able to come up with a technical consensus that would solve these issues, for various reasons. Instead, most WAN SDN implementations have so far been restricted to one vendor’s equipment or have entailed costly integration of multiple vendors’ equipment under one domain controller. The results of these developments have so far been underwhelming; the market landscape remains fragmented, SDN adoption is slow, and the costs are high due to custom integration and operational support overhead. Continue reading “TIP Spells Out What WAN SDN Controllers MUST Do”

US Operators Signal Higher Capex in 2021 After a COVID-Dampened 2020

John Byrne, Service Director

Summary Bullets:

• Despite the impact of COVID-19, capital spending by US network operators was down relatively modestly in 2020, falling by around 4%.

• 2021 guidance from these operators shows a return to roughly similar levels as 2019. Continued demand for additional network capacity along with new 5G imperatives clearly remain.

An analysis of US operator financial results based on Q4 2020 earnings releases shows that while COVID-19 did slow capital investment, it could have been worse. Thanks to a flurry of activity toward the end of the year, the nine publicly-reported carriers, all of which spent in excess of $1 billion in capex, accounted for just over $67 billion in spending. That was down by approximately $3 billion, or 4.2%, compared to 2019. GlobalData estimates that the big three that account for nearly 70% of total capex – AT&T, Verizon, and T-Mobile USA – spent roughly $46 billion, down 6.1% from 2019. However, the bulk of the decline was attributable to AT&T. Continue reading “US Operators Signal Higher Capex in 2021 After a COVID-Dampened 2020”