With the AI chip startup hype cycle spinning down from its feverish pace in 2018, giving way to 2021 expectations for real-world deployments, it still difficult to see which company will steal what little share is left in the Nvidia/Intel/AMD dominated datacenter. …
Will Groq Re-Emerge to Steal AI Market Share? was written by Nicole Hemsoth at The Next Platform.
If you want to break into datacenter compute in a sustainable way, it takes the patience of a glacier. …
The Prospects For An Arm Server Insurrection was written by Timothy Prickett Morgan at The Next Platform.
Recent research into the text of RFCs versus the security of the protocols described came to this conclusion—
This should come as no surprise to network engineers—after all, complexity is the enemy of security. Beyond the novel ways the authors use to understand the shape of the world of RFCs (you should really read the paper; it’s really interesting), this desire to increase security by decreasing the ambiguity of specifications is fascinating. We often think that writing better specifications requires having better requirements, but down this path only lies despair.
Better requirements are the one thing a network engineer can never really hope for.
It’s not just that networks are often used as a sort of “complexity sink,” the place where every hard problem goes to be solved. It’s also the uncertainty of the environment in which the network must operate. What new application will be stuffed on top of the network this week? Will anyone tell the network folks about this new application, or just open a ticket when it doesn’t work right? What about all Continue reading
Note: The Cisco 8000 Series routers also support Cisco Netflow. Rapidly detecting large flows, sFlow vs. NetFlow/IPFIX describes why you should choose sFlow if you are interested in real-time monitoring and control applications.
flow exporter-map SF-EXP-MAP-1
version sflow v5
!
packet-length 1468
transport udp 6343
source GigabitEthernet0/0/0/1
destination 192.127.0.1
dfbit set
!
Configure the sFlow analyzer address in an exporter-map.
flow monitor-map SF-MON-MAP
record sflow
sflow options
extended-router
extended-gateway
if-counters polling-interval 300
input ifindex physical
output ifindex physical
!
exporter SF-EXP-MAP-1
!
Configure sFlow options in a monitor-map.
sampler-map SF-SAMP-MAP
random 1 out-of 20000
!
Define the sampling rate in a sampler-map.
interface GigabitEthernet0/0/0/3
flow datalinkframesection monitor-map SF-MON-MAP sampler SF-SAMP-MAP ingress
Enable sFlow on each interface for complete visibilty into network traffic.
The above configuration instructions are for IOS-XR. Continue reading
Guest analyst Johna Till Johnson, CEO and Founder of Nemertes Research, joins the Network Break to discuss a variety of IT news including the rising price of copper, Proofpoint going private in a $12.3 billion deal, why the US Defense Department suddenly began advertising a huge block of IPv4 addresses, and space networking.
The post Network Break 331: Proofpoint Goes Private In $12 Billion Deal; Defense Dept. Unveils IPv4 Address Cache appeared first on Packet Pushers.
Four years ago, Cloudian was a six-year-old startup in an object storage space that, while the technology had been around for more than a decade, was seeing a surge of interest from cloud providers desperate for a storage architecture that only could scale to meet the demands of their rapidly growing datacenters, the massive amounts of data that was being generated and the need to be able to more easily move it between core on-premises datacenters and multiple cloud environments – and in the coming years the edge. …
Object Storage Makes A Push Into HPC was written by Jeffrey Burt at The Next Platform.
Shut your mouth: The government in India has tried to silence critics of its response to the COVID-19 pandemic there as cases spike in the country, BuzzFeed News reports. India’s IT ministry recently ordered Twitter to block more than 50 tweets from being seen in the country, and Facebook, Instagram, and YouTube also had content critical […]
The post The Week in Internet News: India Tries to Censor Online Critics appeared first on Internet Society.
In this blog I would like to showcase the power of Ansible Content Collections to build powerful abstractions. Collections are a distribution format for Ansible content that can include playbooks, roles, modules and plugins. For this blog post, let us address an Infrastructure as Code(IaC) use case for network configuration management of BGP. We will walk through examples for both Cisco IOS and Arista EOS devices.
First, let us define a data-model that encapsulates the vendor-agnostic configuration.
bgp_global:
as_number: '65000'
bgp:
log_neighbor_changes: true
router_id:
address: 192.168.1.1
neighbor:
- activate: true
address: 10.200.200.2
remote_as: 65001
bgp_address_family:
address_family:
- afi: ipv4
neighbor:
- activate: true
address: 10.200.200.2
network:
- address: 10.25.25.0
mask: 255.255.255.0
- address: 10.25.26.0
mask: 255.255.255.0
- address: 10.100.100.0
mask: 255.255.255.0
- address: 10.200.200.0
mask: 255.255.255.0
- address: 172.16.0.0
- address: 192.168.1.1
mask: 255.255.255.255
As you might have observed, this data-model matches exactly the input expected by the <vendor>.bgp_global and bgp_address_family modules within the IOS and EOS Continue reading
Azure and AWS have decent documentation (I always found it relatively easy to figure out what they’re doing), but what they implemented is sometimes so far away from what we’re used to that it’s hard to bridge the gap. Here’s how Olle Wilhelmsson solved that challenge:
I would just like to send a huge thank you, I’ve been a fan of your appearances on tech field day as a voice of reason, and different podcasts all around. Happy to finally be able to contribute and purchase an IPspace subscription, and was not disappointed.
This series on Azure networking was fantastic, it’s been frustrating to find any kind of good material on this topic. Even if Microsofts documentation is generally good, they really don’t have any resources to compare it to “regular” networking in physical equipment. So just a huge thank you, this has definitely saved me countless hours of reading and googling questions!
Azure and AWS have decent documentation (I always found it relatively easy to figure out what they’re doing), but what they implemented is sometimes so far away from what we’re used to that it’s hard to bridge the gap. Here’s how Olle Wilhelmsson solved that challenge:
I would just like to send a huge thank you, I’ve been a fan of your appearances on tech field day as a voice of reason, and different podcasts all around. Happy to finally be able to contribute and purchase an IPspace subscription, and was not disappointed.
This series on Azure networking was fantastic, it’s been frustrating to find any kind of good material on this topic. Even if Microsofts documentation is generally good, they really don’t have any resources to compare it to “regular” networking in physical equipment. So just a huge thank you, this has definitely saved me countless hours of reading and googling questions!