0

Must Read: Routing Will Never Be a Solved Problem

Mark Seery wrote a fantastic must-read article explaining why routing will never be a solved problem.

You might want to enjoy it as a relaxing antidote after a painful exposure to SD-WAN (or SD-something-else) brainwashing.

0

Transit Gateway — a one-stop shop!

< MEDIUM: https://towardsaws.com/transit-gateway-a-one-stop-shop-e520d2f0afe3 >

I like Transit Gateway on so many levels, truly an NG service integrating many different points of ingress in a way with VPCs

Few important points to start with

1. AWS Transit Gateway is a service that enables customers to connect their Amazon Virtual Private Clouds (VPCs) and on-premises networks to a single gateway.
2. Transit Gateway is a hub that controls traffic routed among all the connected networks.
3. Transit Gateway supports both IPv4 and IPv6 traffic.
4. Transit Gateway is highly scalable and can support thousands of VPCs and on-premises networks.
5. Transit Gateway uses route tables to determine how traffic is routed.
6. Transit Gateway supports VPC peering and VPN connections.
7. Transit Gateway can be used with AWS Direct Connect to create a private connection between an on-premises network and a VPN

Scenario 1 — Connect your VPCs

Interconnecting VPCs’s typically done through VPC-Peering, now while that is still valid you can easily interconnect VPCs through the transit gateway attachments feature, while VPC peering does only well VPC, transit gateway can connect VPCs, DX-Gateways and you can terminate IPSEC-VPN’s directly onto the transit gateway.

• Routing tables are not auto-propagated, meaning you have to add static routes individually in Continue reading

0

Palo traffic flows and sessions

Information on how applications are identified by App-ID and following sessions and traffic flows through the firewall using the CLI.

0

Qualys previews TotalCloud FlexScan for multicloud security management

Agentless security management system aims to simplify vulnerability management for security teams and developers in cloud and hybrid cloud environments.

0

Qualys previews TotalCloud FlexScan for multicloud security management

Agentless security management system aims to simplify vulnerability management for security teams and developers in cloud and hybrid cloud environments.

0

An Introduction To Data Center Network Automation: An Onion-Based Architecture

Gone are the days when the data centers had a relatively simple network with VLANs, core switches, and a few firewalls. The network rarely changed. When a change was needed, someone who knew the network like the back of their hand had to configure those changes device per device, config line per config line. Nowadays […]

The post An Introduction To Data Center Network Automation: An Onion-Based Architecture appeared first on Packet Pushers.

0

Heavy Networking 654: What’s Up With DPUs?

Today on Heavy Networking we have a round-table discussion about Data Processing Units (DPUs). These devices let you bring networking, security, and storage capabilities closer to server workloads without burdening server CPUs. Guests Pete Lumbis and Aaron Glenn help us dissect DPUs, identify use cases, discuss adoption and operational challenges, and more.

The post Heavy Networking 654: What’s Up With DPUs? appeared first on Packet Pushers.

0

Heavy Networking 654: What’s Up With DPUs?

Today on Heavy Networking we have a round-table discussion about Data Processing Units (DPUs). These devices let you bring networking, security, and storage capabilities closer to server workloads without burdening server CPUs. Guests Pete Lumbis and Aaron Glenn help us dissect DPUs, identify use cases, discuss adoption and operational challenges, and more.

0

Nvidia tests: DPUs can cut power needed by servers

The chip maker says tests of its BlueField-2 data-processing units (DPU) in servers results in significant power savings over servers that don’t use the specialized chips to offload tasks from the CPUs.The DPUs, or SmartNICs, take on certain workloads—packet routing, encryption, real-time data analysis—leaving the CPU free to process data. But Nvidia says they can also reduce power consumption.The four tests involved running similar workloads on servers with and without DPUs, and Nvidia concluded that even with the additional power draw by the DPUs, overall power consumption by the servers dropped.To read this article in full, please click here

0

Nvidia tests: DPUs can cut the power servers use

The chip maker says tests of its BlueField-2 data-processing units (DPU) in servers results in significant power savings over servers that don’t use the specialized chips to offload tasks from the CPUs.The DPUs, or SmartNICs, take on certain workloads—packet routing, encryption, real-time data analysis—leaving the CPU free to process data. But Nvidia says they can also reduce power consumption.The four tests involved running similar workloads on servers with and without DPUs, and Nvidia concluded that even with the additional power draw by the DPUs, overall power consumption by the servers dropped.To read this article in full, please click here

0

Nvidia tests: DPUs can cut power needed by servers

The chip maker says tests of its BlueField-2 data-processing units (DPU) in servers results in significant power savings over servers that don’t use the specialized chips to offload tasks from the CPUs.The DPUs, or SmartNICs, take on certain workloads—packet routing, encryption, real-time data analysis—leaving the CPU free to process data. But Nvidia says they can also reduce power consumption.The four tests involved running similar workloads on servers with and without DPUs, and Nvidia concluded that even with the additional power draw by the DPUs, overall power consumption by the servers dropped.To read this article in full, please click here

0

Nvidia tests: DPUs can cut the power servers use

The chip maker says tests of its BlueField-2 data-processing units (DPU) in servers results in significant power savings over servers that don’t use the specialized chips to offload tasks from the CPUs.The DPUs, or SmartNICs, take on certain workloads—packet routing, encryption, real-time data analysis—leaving the CPU free to process data. But Nvidia says they can also reduce power consumption.The four tests involved running similar workloads on servers with and without DPUs, and Nvidia concluded that even with the additional power draw by the DPUs, overall power consumption by the servers dropped.To read this article in full, please click here

0

Networking and Data Center Horrors That Scare IT Managers

While Halloween spooks people for one day, network and IT managers face a constant barrage of nightmares and horror stories year-round.

0

Hedgehog, Kubernetes, And The Network Automation Conundrum

This post originally appeared in Human Infrastructure, the Packet Pushers’ weekly newsletter. See back issues and sign up here to get it. The networking startup Hedgehog recently emerged from stealth with a network fabric that brings together the open-source SONiC network OS (NOS) and the Kubernetes orchestration platform. The goal is to provide a distributed […]

The post Hedgehog, Kubernetes, And The Network Automation Conundrum appeared first on Packet Pushers.

0

Video: EVPN Multihoming Deep Dive

After starting the EVPN multihoming versus MLAG presentation (part of EVPN Deep Dive webinar) with the taxonomy of EVPN-based multihoming, Lukas Krattiger did a deep dive into its intricacies including:

• EVPN route types needed to support multihoming
• A typical sequence of EVPN updates during multihoming setup
• MAC multipathing, MAC aliasing, split horizon and mass withdrawals
• Designated forwarder election

0

Video: EVPN Multihoming Deep Dive

After starting the EVPN multihoming versus MLAG presentation (part of EVPN Deep Dive webinar) with the taxonomy of EVPN-based multihoming, Lukas Krattiger did a deep dive into its intricacies including:

• EVPN route types needed to support multihoming
• A typical sequence of EVPN updates during multihoming setup
• MAC multipathing, MAC aliasing, split horizon and mass withdrawals
• Designated forwarder election

0

Going Dark

There has been a concerted push to shroud many of the IETF's core protocols inside a claok of end-to-end encryption. This level of occlusion of the transactions that occur across the network from the network itself is not without its attendant risks, as Dr Paul Vixie outlined in a presentation at the recent NANOG 86 meeting.

0

Kyndryl’s first year yields revenue challenges and a plan to make more

In the year since it spun out of IBM, Kyndryl has made a number of big strides in establishing itself as a core infrastructure service management player, but challenges remain.For example, while it has substantially expanded its partnerships and technology, its financial situation hasn’t shown a similar bump. Just this week the company reported  second quarter revenues of $4.2 billion, a year-over-year drop of 9%. The company has reported similar results in other recent quarters. “Currency and energy-costs impacts are superseding the operational progress we’re making,” Kyndryl CFO David Wyshner told Wall Street analysts during the firm’s 2Q 2023 call this week. “And while the risk of a global recession has clearly increased, we continue to see broadbase demand for digital transformation in infrastructure services.”To read this article in full, please click here

0

Kyndryl’s first year yields revenue challenges and a plan to make more

In the year since it spun out of IBM, Kyndryl has made a number of big strides in establishing itself as a core infrastructure service management player, but challenges remain.For example, while it has substantially expanded its partnerships and technology, its financial situation hasn’t shown a similar bump. Just this week the company reported  second quarter revenues of $4.2 billion, a year-over-year drop of 9%. The company has reported similar results in other recent quarters. “Currency and energy-costs impacts are superseding the operational progress we’re making,” Kyndryl CFO David Wyshner told Wall Street analysts during the firm’s 2Q 2023 call this week. “And while the risk of a global recession has clearly increased, we continue to see broadbase demand for digital transformation in infrastructure services.”To read this article in full, please click here

0

How the Brazilian Presidential elections affected Internet traffic

Brasil, sei lá
Ou o meu coração se engana
Ou uma terra igual não há
— From Tom Jobim’s song, Brasil Nativo

Brazil’s recent presidential election got significant attention from both global and national media outlets, not only because of the size of the country, but also because of premature allegations of electoral fraud. The first round of the Brazilian 2022 general election was held on October 2, and the runoff was held on Sunday, October 30. With 124 million votes counted, former president Lula da Silva (2003-2010) won with 50.9% of the votes, beating incumbent Jair Bolsonaro, who had 49.1% of the votes.

Using Cloudflare’s data, we can explore the impact that this election had on Internet traffic patterns in Brazil, as well as interest in content from election-related websites, news organizations, social media platforms, and video platforms.

Here are a few highlights: while the runoff generated much more interest to election related websites (we actually have a view to DNS queries, a proxy to websites), the first round showed bigger increases in traffic Continue reading