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Category: Operating system

Cisco, GNS3, iOS, NetStudy

PVST and MST (in)compatibility

27/04/202227/04/2022 Radosław Kochman

Spanning-tree protocol configurations can cause headaches among network engineers. Especially if we have mixed topology, with more than one STP implementation. In this article, we will look closer at the interoperability between the Cisco PVST and MST. Based on two

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GNS3, Nokia/Alcatel, TiMOS/SR-OS

How to add and configure Nokia VSR VM in the GNS3

13/11/202113/11/2021 Radosław Kochman

GNS3 is a powerful tool to simulate computer networks. Many images are ready to use right after the basic setup. However, sometimes we have to put in some more work to make everything work as expected. In this article, we

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Cisco, GNS3, iOS, NetStudy

OSPF with BFD case study

18/10/202118/10/2021 Radosław Kochman

While administrating the network, it’s important to think about high availability. If one network element goes down, the network can still operate properly after it’s converged. But how about the convergence time? It differs from one protocol to another, and

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Cisco, GNS3, iOS, NetStudy

IPv6 tunneling over IPv4 GRE

17/07/202116/07/2021 Radosław Kochman

As network engineers, sometimes we have to deal with unusual problems. One of them is when we have two isolated IPv6 network parts, but we want them to be able to communicate with each other. In this article, we’re gonna

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Cisco, GNS3, iOS, NetStudy

Layer 3 MTU case study

07/06/202103/06/2021 Radosław Kochman

In the previous article, I’ve touched the layer 2 MTU topic. This time, we will see how’s the behaviour of layer 3 MTU in 3 different scenarios. Packet structure First of all, before we touch on some case scenarios, let’s

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Cisco, GNS3, iOS, NetStudy

Layer 2 MTU case study

03/05/202103/05/2021 Radosław Kochman

The MTU topic seems to be confusing, especially among young network engineers. I’ve decided to into two parts. This article is focused on the layer 2 MTU aspect exclusively. I’ve prepared 3 case scenarios to present how’s switch behaves with

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NetStudy, Nokia/Alcatel, SR-Linux

Basic layer 2 operations on Nokia SR-Linux

19/04/202103/05/2021 Radosław Kochman

In this article, we will dive into a brand-new Nokia network operating system – SR-Linux, which is available on a Nokia 7220 series. We will focus mainly on the basic L2 operations on this platform. Topology The topology for this

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Cisco, GNS3, iOS, NetStudy, Nokia/Alcatel, TiMOS/SR-OS

MST interoperability between Nokia 7750 and Cisco IOS

22/03/202123/03/2021 Radosław Kochman

In this article, I want to briefly touch on the Multiple Spanning Tree protocol configuration on Nokia 7750 and its compatibility with Cisco equipment. The spanning-tree configuration on SR-OS varies by type. The MST is slightly different because it uses

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GNS3, Nokia/Alcatel, TiMOS/SR-OS

Routed VPLS

05/08/202005/08/2020 Radosław Kochman

In this article, I want to shed some light on the configuration of routed VPLS’es on Nokia 7750 equipment. The basic VPLS configuration allows only communication between hosts within that VPLS. Sometimes there is a need to provide communication between

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NetStudy, Nokia/Alcatel, TiMOS/SR-OS

Nokia 7250 IXR-10 power-module provisioning

05/07/202005/07/2020 Radosław Kochman

When it comes to the initial configuration of the Nokia/Alcatel equipment, card provisioning is necessary before the first use. I’ve covered the whole process in this article. But there are situations when it’s not enough. I’ve learned it the hard

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Recent Posts

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  • Collect objects from the Strata Cloud Manager
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