Dropped packets have a profound impact on network performance and availability. Packet discards due to congestion can significantly impact application performance. Dropped packets due to black hole routes, expired TTLs, MTU mismatches, etc. can result in insidious connection failures that are time consuming and difficult to diagnose. Visibility into dropped packets offers significant benefits for network troubleshooting, providing real-time network-wide visibility into the specific packets that were dropped as well the reason the packet was dropped. This visibility instantly reveals the root cause of drops and the impacted connections.
vyos@vyos:~$ show version
Version: VyOS 1.4-rolling-202303260914
Release train: current
Built by: [email protected]
Built on: Sun 26 Mar 2023 09:14 UTC
Build UUID: 72b34f74-bfcd-4b51-9b95-544319c2dac5
Build commit ID: d68bda6a295ba9
Architecture: x86_64
Boot via: installed image
System type: guest
Hardware vendor: innotek GmbH
Hardware model: VirtualBox
Hardware S/N: 0
Hardware UUID: df0a2b79-b8c4-8342-a27f-76aa3e52ad6d
Copyright: VyOS maintainers and contributors
Verify that the version of of VyOS is VyOS 1.4-rolling-202303260914 or later.
On VyOS dropped packet monitoring Continue readingCloudflare's commitment to building the most compelling and easy-to-use SASE platform on the market has led to significant growth over the past year. Cloudflare One services have seen the fastest adoption among our customers, with a 3x increase in partner bookings and a 70% YoY increase in transacting partners. Partners consistently cite the simplicity of our platform, our innovation, and our global network as key differentiators that are driving strong customer demand.
To continue building on this momentum and deliver required services that our customers may require, we previously announced the creation of our new specialization track for Authorized Services Delivery Partners (ASDP) as part of our efforts to continue growing our partnership program.
Cloudflare's Authorized Services Delivery Partner track is designed to authorize partners that meet our high standards for professional services delivery around Cloudflare One. Partners who undergo the rigorous technical validation process and meet the criteria for security, performance, and reliability of their services delivery capabilities are designated as Cloudflare Authorized Service Delivery Partners. This designation provides a variety of benefits, including access to Cloudflare One sourced opportunities requiring services, access to named Cloudflare One Service Delivery Managers, and access to special partner incentive funds designed to Continue reading
< MEDIUM: https://raaki-88.medium.com/home-automation-finally-roller-curtains-and-nightmares-b8ef1fc473d9 >
Am a fan and enthusiast of home automation, tried various things in the past and now settled with few things which I would like to share.
. . .
Lets get to the Curtain Rollers — So for these here is the catch, I have a remote for these and thats about it, nothing more nothing less, My ideas were mostly around having network connectivity and manipulating them.
< MEDIUM: https://raaki-88.medium.com/enabling-nested-virtualisation-on-google-cloud-platform-instance-7f80f3120834 >
Important Excerpt from the below page.
https://cloud.google.com/compute/docs/instances/nested-virtualization/overview
You must run Linux-based OSes that can run QEMU; you can’t use Windows Server images.
You can’t use E2, N2D, or N1 with attached GPUs, and A2 machine types.
You must use Intel Haswell or later processors; AMD processors are not supported. If the default processor for a zone is Sandy Bridge or Ivy Bridge, change the minimum CPU selection for the VMs in that zone to Intel Haswell or later. For information about the processors supported in each zone, see Available regions and zones.
Though there are many use cases, I will speak from a networking standpoint. Let us say you need to do some sort of lab based on popular vMX Juniper or Cisco or any other vendor, if you have a bare metal instance, you have the ability to access the virtualised CPU cores and allocate them to the Qemu which will be the underlying emulator.
Almost by default most of the cloud providers will disable access to VT-x because of various reasons and some instances are not capable of supporting this by default. So either choose a custom instance with Continue reading
After I got the testing infrastructure in place (simple DHCP relay, VRF-aware DHCP relay), I was ready for the real fun: DHCP relaying in VXLAN (and later EVPN) segments.
TL&DR: It works exactly as expected. Even though I had anycast gateway configured on the VLAN, the Arista vEOS switches used their unicast IP addresses in the DHCP relaying process. The DHCP server had absolutely no problem dealing with multiple copies of the same DHCP broadcast relayed by different switches attached to the same VLAN. One could only wish things were always as easy in the networking land.
After I got the testing infrastructure in place (simple DHCP relay, VRF-aware DHCP relay), I was ready for the real fun: DHCP relaying in VXLAN (and later EVPN) segments.
TL&DR: It works exactly as expected. Even though I had anycast gateway configured on the VLAN, the Arista vEOS switches used their unicast IP addresses in the DHCP relaying process. The DHCP server had absolutely no problem dealing with multiple copies of the same DHCP broadcast relayed by different switches attached to the same VLAN. One could only wish things were always as easy in the networking land.
https://codingpackets.com/blog/cloud-notes-aws-elb
I have blog post ideas sitting in my to-write queue for over a decade. One of them is why would you need a VRF (and associated router) between virtual servers and a firewall?
Andrea Dainese answered at least part of that question in his Off-Path firewall with Traffic Engineering blog post. Enjoy!
I have blog post ideas sitting in my to-write queue for over a decade. One of them is why would you need a VRF (and associated router) between virtual servers and a firewall?
Andrea Dainese answered at least part of that question in his Off-Path firewall with Traffic Engineering blog post. Enjoy!
Another interesting take on ChatGPT in networking, this time by Tom Hollingsworth in The Dangers of Knowing Everything:
In a way, ChatGPT is like a salesperson. No matter what you ask it the answer is always yes, even if it has to make something up to answer the question.
To paraphrase an old joke: It’s not that ChatGPT is lying. It’s just that what it knows isn’t necessarily true. See also: the difference between bullshit and lies.
Another interesting take on ChatGPT in networking, this time by Tom Hollingsworth in The Dangers of Knowing Everything:
In a way, ChatGPT is like a salesperson. No matter what you ask it the answer is always yes, even if it has to make something up to answer the question.
To paraphrase an old joke: It’s not that ChatGPT is lying. It’s just that what it knows isn’t necessarily true. See also: the difference between bullshit and lies.
Arista Networks has announced two hardware WAN routers, the 5510 and the 5310, which are targeted at branch, edge, and remote sites. The routers run EOS with a full routing stack. The new hardware can run as standard routers, or be used for SD-WAN with all the features you’d expect, including support for multiple links and app identification. Ethan Banks and Drew Conry-Murray share what they learned in a briefing with the company and debate the strategy behind Arista's entry into the SD-WAN market.
The post Briefings In Brief 103: Arista Enters The SD-WAN Arena appeared first on Packet Pushers.
On today's Heavy Networking we sub in a podcast from our Heavy Strategy channel. Greg Ferro from the Packet Pushers and Johna Till Johnson, CEO of Nemertes Research, discuss the impacts of ChatGPT and AI on the technology workspace, including whether human workers can partner with these tools to increase productivity and improve technology experiences. They don't have answers, but they do have unanswered questions.
The post Heavy Networking 671: Is ChatGPT Coming For Your Job? appeared first on Packet Pushers.