SCP not working with MacOS 13 Ventura?
You have upgraded your MacOS to version 13 (Ventura) and a simple SCP to a network device does not work anymore?
In fact, this is normal, here is the reason and how to solve this problem.
How to simulate a host in a real network?
Like some other posts, I didn’t think I would write this one because it seemed obvious. But, after talking to a lot of engineers and customers, I realized that not everyone knows this trick. So here it is.
The question is this: how to simulate a real host in a physical network environment when you don’t have computer at your disposal? Well, let’s take an example.
100Gb Ethernet transceivers, modules and form factors on Cisco products
At the time of the 400Gb Ethernet interfaces introduction, here is a summary of the different form-factors, transceivers and modules available for 100Gb Ethernet on Cisco devices.
As you will see below, there are many different types of 100Gb Ethernet transceivers. And each type have its own functional mode. In a next article, I will try to explain the differences between them and will give more details about the most common: the QSFP-28.
Multicast lab 5: Source-Specific Multicast (SSM)
After giving a two-days training to a customer on multicast technology, I take the opportunity to have my lab and the configurations ready to share with you a suite of five different multicast configurations examples. And, how to make some tests and troubleshooting. These examples are based on the labs I used to practice the CCIE R&S practical exam.
Multicast lab 4: Any-Source Multicast with Bootstrap Router (BSR)
After giving a two-days training to a customer on multicast technology, I take the opportunity to have my lab and the configurations ready to share with you a suite of five different multicast configurations examples. And, how to make some tests and troubleshooting. These examples are based on the labs I used to practice the CCIE R&S practical exam.
Multicast lab 3: Any-Source Multicast with anycast RP
After giving a two-days training to a customer on multicast technology, I take the opportunity to have my lab and the configurations ready to share with you a suite of five different multicast configurations examples. And, how to make some tests and troubleshooting. These examples are based on the labs I used to practice the CCIE R&S practical exam.
Multicast lab 2: Any-Source Multicast with auto RP
After giving a two-days training to a customer on multicast technology, I take the opportunity to have my lab and the configurations ready to share with you a suite of five different multicast configurations examples. And, how to make some tests and troubleshooting. These examples are based on the labs I used to practice the CCIE R&S practical exam.
Multicast lab 1: Any-Source Multicast with static RP
After giving a two-days training to a customer on multicast technology, I take the opportunity to have my lab and the configurations ready to share with you a suite of five different multicast configurations examples. And, how to make some tests and troubleshooting. These examples are based on the labs I used to practice the CCIE R&S practical exam.
Posted inEnterprise Network Security
Site-to-site VPN tunnels between Meraki MX and Cisco ASA
As I wrote on my recent post here, I was involved into a project to implement a Meraki MX into the Azure Cloud. This project also includes a migration phase…
Posted inCloud Enterprise Network Security
How to deploy a Cisco Meraki vMX100 into Microsoft Azure
Recently, I was involved into a project where we had to deploy a Cisco Meraki vMX100 into Microsoft Azure cloud and build site-to-site and clients VPNs.
The setup process on Azure is relatively simple, however, I lost quite a lot of time on basic issues because the documentation provided by Cisco is not 100% accurate. Here are some tips and tricks to save you time.
BGP full-routes vs partial-routes vs default-route
The IPv4 full BGP table size is at around 725000 prefix now. This may cause problems for companies who do not have the resources to update or upgrade their edge routers.
But, except for Internet transit providers, who does really need to get the full IPv4 BGP table today? And what are the alternatives? Let’s see that in details with some use-cases.
BGP load sharing and unequal cost load sharing
On Cisco routers, by default the BGP protocol will not do load-sharing – and even less unequal cost load-sharing – across multiple links, for traffic to the same eBGP destination with different AS-path. Let’s see how we can change this.