Tag

cisco

Networking

Cheat sheet for automated creation of networking lab in KVM on Linux: Arista, Cisco, Cumulus, Nokia

Hello my friend,

Some time ago we have discussed how Ansible could be used as VNF manager for onboarding and deleting the VMs in Linux. I have got some feedbacks, that not everything is easy or could be reproduced, so I decided to find the easier way, how to help you with the creation of virtual labs to train your networking and programming skills (assuming you are using Ansible).

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Networking

OpenConfig. Part 3. Advanced OpenConfig (w/ Ansible) for Arista EOS, Cisco IOS XR and Nokia SR OS: route policy BGP and interfaces again

Hello my friend,

Today we’ll continue (and probably finalize) our conceptual discussion about OpenConfig for the automation of the data center network based on BGP-EVPN/VXLAN. We’ll speak about BGP and associated routing policies and again about interfaces, but we’ll do it from different angle comparing to the first OpenConfig article. So we won’t create the jinja2 templates ourselves, but we’ll rely on built in functionality in “pyang “tool instead.

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Networking

OpenConfig. Part 1. OpenConfig (w/o and w/ Ansible) for Arista EOS, Cisco IOS XR and Nokia SR OS

Hello my friend,

For long time I’ve been preparing to write this article and finally you are reading it. The topic is really hot as everything, which is named “open” today, becomes automatically fancy and widely discussed. What we will do today, we’ll explore the OpenConfig capabilities on Arista EOS, Cisco IOS XR and Nokia (Alcatel-Lucent) SR OS and will try to understand how much OpenConfig is really open.
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Networking

Two years on air

Hello my friend,

Two years, on 5. June 2016 I have posted the first article on the topic of interoperability between Nokia (Alcatel-Lucent) SR OS and Cisco IOS XR. That article shaped the main line for all my blogs, and this line is “interoperability”. But not only. In the first year we focused on Service providers IP Core and Backhaul technologies, whereas in the second year SDN, data centers and automations were in focus and also introduction of new vendors to our interops.

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Networking

EVPN/VXLAN for Data Centre with Nokia (Alcatel-Lucent) SR OS and Cumulus Linux – Part 4

Hello my friend,

We have discussed so far EVPN with BGP signaling and VXLAN data plane with different scenarios: pure switching, inter-VXLAN routing and even BGP peering from VM to leaf. But all the leafs were Nokia (Alcatel-Lucent) SR OS, as Cisco IOS XRv doesn’t support VXLAN. In this article we’ll replace on leaf with Cumulus Linux VX, so let’s see how we achieve interoperability now.

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Networking

Role play games with Ansible for Nokia (Alcatel-Lucent) SR OS and Cisco IOS XR

Hello my friend,

Thanks to my friends I have a chance to take part in a project, where we are heavily using Ansible for various tasks in real network. When there are several people working on a joint project, some rules are needed in order playbooks are consistent. We have taken Ansible roles as rules. And I realized that I should have used them for my examples from the very beginning.

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