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Category Archives for "Networking"

About

Author

An open source contributor ( https://github.com/kashif-nawaz?tab=repositories) with 14+ years experience with expertise in diverse domains i.e IP/ MPLS Backbone networks  , Data Center (IP-Fabric , EVPN-VxLAN, Server/ Chassis Network design), NFVI, Telco and Edge  Cloud (Openstack, K8s and Openshift). Author of the book titled “Designing and Deploying Carrier-Grade, Cloud-Native Infrastructure for Telco and Edge Cloud” (https://www.juniper.net/documentation/en_US/day-one-books/DayOne-Designing-Deploying-Carrier-Grade-Cloud-Native-Infrastructure.pdf)

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Kashif Nawaz

(JNICE-SP & Sec, Redhat Certified Engineer,  Certified Kubernetes Administrator, Redhat Openshift Administrator )

[email protected]

VMware warns customers to immediately patch critical Aria network software holes

VMware is advising customers to upgrade or patch its Aria for Network Operations software because of potential security problems.VMware Aria is the vendor’s multi-cloud management platform that integrates previously separate VMware services such as vRealize Automation, vRealize Operations, vRealize Network Insight, and CloudHealth. A single Aria Hub console provides centralized views and controls and lets customers see and manage the entire multi-cloud environment.The vulnerabilities are in Aria Operations for Networks, a monitoring component that can find the cause of application delays based on TCP traffic latency and retransmissions and trigger alerts on the applications dashboard.To read this article in full, please click here

VMware warns customers to immediately patch critical Aria network software holes

VMware is advising customers to upgrade or patch its Aria for Network Operations software because of potential security problems.VMware Aria is the vendor’s multi-cloud management platform that integrates previously separate VMware services such as vRealize Automation, vRealize Operations, vRealize Network Insight, and CloudHealth. A single Aria Hub console provides centralized views and controls and lets customers see and manage the entire multi-cloud environment.The vulnerabilities are in Aria Operations for Networks, a monitoring component that can find the cause of application delays based on TCP traffic latency and retransmissions and trigger alerts on the applications dashboard.To read this article in full, please click here

Day Two Cloud 208: HashiCorp Licensing Changes And The Day Two Cloud-Chaos Lever Crossover

Today on Day Two Cloud we dive into the implications of licensing changes that HashiCorp has made to its popular Terraform software. In short, the company has switched from an open source to a business source license. HashiCorp says it felt compelled to make the change to ensure that some other business entity doesn't take the open-source software and turn it into a competing product (looking at you, AWS). Will the licensing change have a significant impact? For 99% of users probably not, but there are caveats and concerns to discuss. Today's show is a crossover with Chaos Lever, a weekly podcast co-hosted by Ned Bellavance and Chris Hayner that covers IT news.

The post Day Two Cloud 208: HashiCorp Licensing Changes And The Day Two Cloud-Chaos Lever Crossover appeared first on Packet Pushers.

Day Two Cloud 208: HashiCorp Licensing Changes And The Day Two Cloud-Chaos Lever Crossover

Today on Day Two Cloud we dive into the implications of licensing changes that HashiCorp has made to its popular Terraform software. In short, the company has switched from an open source to a business source license. HashiCorp says it felt compelled to make the change to ensure that some other business entity doesn't take the open-source software and turn it into a competing product (looking at you, AWS). Will the licensing change have a significant impact? For 99% of users probably not, but there are caveats and concerns to discuss. Today's show is a crossover with Chaos Lever, a weekly podcast co-hosted by Ned Bellavance and Chris Hayner that covers IT news.

BrandPost: Top four benefits of SASE for the modern workplace

By: Gabriel Gomane, Senior Product Marketing Manager at Aruba, a Hewlett Packard Enterprise company.With the acceleration of digital transformation and hybrid working, organizations are moving their applications to the cloud at a faster pace. Users are now accessing sensitive data in the cloud from any location and device, often through untrusted connections. Traditional security models based on perimeter defenses are becoming obsolete as the security perimeter dissolves.To solve these challenges, watch my video to learn how SASE (Secure Access Service Edge) enable the workplace transformation.To read this article in full, please click here

Intel details next generation of Xeon processors

Intel used the Hot Chips 2023 show to introduce the next generation of its Xeon processors, codenamed Sierra Forest and Granite Rapids. This will be the first generation of Xeon processors with different core designs: the new Efficient-core (E-core) architecture and existing Performance-core (P-core) architecture. The new processors will be considerably beefier than the previous generation, codenamed Sapphire Rapids. They will feature up to 144 cores and emphasize greater memory and I/O bandwidth performance, two areas where Xeon has lagged behind AMD’s Epyc processors.To read this article in full, please click here

Intel details next generation of Xeon processors

Intel used the Hot Chips 2023 show to introduce the next generation of its Xeon processors, codenamed Sierra Forest and Granite Rapids. This will be the first generation of Xeon processors with different core designs: the new Efficient-core (E-core) architecture and existing Performance-core (P-core) architecture. The new processors will be considerably beefier than the previous generation, codenamed Sapphire Rapids. They will feature up to 144 cores and emphasize greater memory and I/O bandwidth performance, two areas where Xeon has lagged behind AMD’s Epyc processors.To read this article in full, please click here

Will RedCap 5G spark IoT gold rush?

The arrival of 5G cellular technology was supposed to be the match that set the IoT world on fire, but it hasn’t exactly worked out that way. It’s not that the flames have been doused, but rather that IoT growth has smoldered instead of blazed.5G itself has become widely deployed for a variety of use cases, but adoption has been slow for IoT-centric enterprise applications like health-related wearables, industrial IoT networks, surveillance and security, asset tracking and fleet management.To read this article in full, please click here

ARP and Static Routes

A few days ago, I described how ARP behaves when the source- and destination IP addresses are not on the same subnet (TL&DR: it doesn’t care). Now, let’s see how routers use ARP to get the destination MAC address for various entries in the IP routing table. To keep things simple, we’ll use static routes to insert entries in the IP routing table.

We’ll run our tests in a small virtual lab with two Linux hosts and an Arista vEOS switch. The link between H1 and RTR is a regular subnet. H2 has an IP address on the Ethernet interface, but RTR uses an unnumbered interface.

Read more …

ARP and Static Routes

A few days ago, I described how ARP behaves when the source- and destination IP addresses are not on the same subnet (TL&DR: it doesn’t care). Now, let’s see how routers use ARP to get the destination MAC address for various entries in the IP routing table. To keep things simple, we’ll use static routes to insert entries in the IP routing table.

We’ll run our tests in a small virtual lab with two Linux hosts and an Arista vEOS switch. The link between H1 and RTR is a regular subnet. H2 has an IP address on the Ethernet interface, but RTR uses an unnumbered interface.

Read more …

Google’s Cross-Cloud Network service aims to simplify multicloud networking

Google Cloud has added a new service that promises to make it easier for enterprise customers to securely network multiple cloud-based resources.The Cross-Cloud Network service consists of new and existing Google Cloud technology and includes a partner ecosystem to help organizations develop, build and support distributed enterprise applications across clouds.“We know that 70-plus percent of our enterprises are going to adopt multicloud. [The] idea behind Cross-Cloud Network is that today many organizations operate bespoke networks with turnkey security to connect to those clouds that are operationally complex to manage and build, thereby resulting in a much higher total cost of ownership and soaring costs,” said Muninder Sambi, vice president and general manager of networking for Google Cloud. “They set up private data centers to connect and secure the hybrid workforce to access cloud and on-prem resources and manage multiple CDN clouds to accelerate web apps. All of this can also lead to an inconsistent security posture and drives up total costs,” Sambi said.To read this article in full, please click here

Google’s Cross-Cloud Network service aims to simplify multicloud networking

Google Cloud has added a new service that promises to make it easier for enterprise customers to securely network multiple cloud-based resources.The Cross-Cloud Network service consists of new and existing Google Cloud technology and includes a partner ecosystem to help organizations develop, build and support distributed enterprise applications across clouds.“We know that 70-plus percent of our enterprises are going to adopt multicloud. [The] idea behind Cross-Cloud Network is that today many organizations operate bespoke networks with turnkey security to connect to those clouds that are operationally complex to manage and build, thereby resulting in a much higher total cost of ownership and soaring costs,” said Muninder Sambi, vice president and general manager of networking for Google Cloud. “They set up private data centers to connect and secure the hybrid workforce to access cloud and on-prem resources and manage multiple CDN clouds to accelerate web apps. All of this can also lead to an inconsistent security posture and drives up total costs,” Sambi said.To read this article in full, please click here

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