In this section, we talk about Dragonfly and Dragonfly+ topology. The Dragonfly network topology is a high-performance interconnection network commonly used in large-scale computing systems like supercomputers and data centers. It is designed to provide low latency, high bandwidth, and high fault tolerance for communication between computing nodes. In a Dragonfly network, the system is […]
Tag: Cumulus
Error installing Netris agent on Cumulus
Installing netris agent in Mellanox Switch with new cumulus it might there are some trouble while in progress. first you need to check date on the switch, is it real-time date? If it isn’t, you can change the timezone with command timedatectl set-timezone. In this case my timezone GMT+7 which is Asia/Jakarta time. next, you […]
Check topology Layer 2 change real time in Cumulus (STP issue related)
In Layer 2 network topology, when there is changes within the topology or new device connected with Layer 2 feature, the spanning tree feature will calculated again which device is gonna be root switch, which port is gonna be designated port, alternate port, etc. In Cumulus, we can check which port is triggered by that […]
Best Practice: Restart Service switchd on Cumulus MLAG-Pair Switch
Sometimes we/user want to restart service switchd on the one of MLAG-Pair switch Cumulus, or maybe testing to cut off the peerlink between that MLAG-Pair switch (like UAT or similar activity). But if we don’t know who is the primary switch on that MLAG-Pair, we could get into trouble like the Host will disconnected from […]
Automation Cumulus with Playbook-Ansible
Preparation Memberikan akses “root/sudo” pada user user tanpa password pada semua perangkat, baik di dalam server maupun switch yang terhubung dalam ansible. Dalam kasus ini menggunakan user ubuntu dan dapat diubah sesuai kebutuhan. update dan upgrade system install python3-dev dan virtual environment install git dan copy repository file git ‘nvue’ yang dibutuhkan dari gitlab cumulus […]
Troubleshooting : Check MAC Address Learning on Cumulus
In Cumulus OS Switches, we can do MAC checking regarding troubleshooting Layer 2 function. At first we can use this command to make sure the MAC address is learned from some interfaces source. net show mac bridge macs If we want to check the Forward Database Mac on Cumulus OS Switches, you can use this […]
Network Address Translation
Secara jenis, NAT terbagi menjadi 2 yaitu dynamic ,static. Sedangkan secara mode, NAT bisa juga menjadi PAT. Perbedaan yang ada disini ialah NAT lebih berfokus kea rah mengubah IP Address dan pada nat juga sangat jelas yaitu dynamic dan static dimana pasti diantara kedua itu yang dipilih. Static NAT adalah proses NAT yang dilkukan pada […]
Cumulus Linux OSPF
Version 4.2 No Single Area Multi Area 1. Update Routing Table Terjadi di semua router Update routing table terjadi per area 2 Menggunakan banyak resource pada topologi kompleks Resource yang digunakan tergantung banyak perangkat pada satu area 3 Konvergensi cepat Konvergensi lambat 4 Kurang scalable, karena jika ada perubahan topologi maka SPF akan berjalan pada […]
Spanning Tree Protocol
On Cumulus Linux Version 4.2 By default, STP sudah dikonfigurasi pada Cumulus sehingga tidak perlu melakukan konfigurasi apapun lagi. Jika ingin mengubah prioritas maka tinggal diubah STP Priority nya dimana lebih kecil priority maka akan dipilih menjadi root switch. Adapun hal-hal lain yang dapat menjadi pertimbangan adalah pemasangan bpdu guard dengan command net add int […]