Installation Guide

Big data Cumulus-Linux installation guide

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B I G D AT A AN D C U MU L U S L I NU X : V AL I DA T E D DE SI G N GU I D E 12 1. Set Up Physical Network Rack, stack, and cable your network switches. Install the Cumulus Linux OS and license on each switch. Refer to the Quick Start Guide and Getting Started sections of the Cumulus Linux Documentation for more information. 2. Set Up Basic Configuration of All Switches The default configuration for eth0, the management interface, is DHCP. To reconfigure eth0 to use a static IP address, edit the /etc/network/interfaces file by adding an IP address/mask and an optional gateway. The default for the hostname of a switch running Cumulus Linux is cumulus. Change this to the appropriate name based on your network architecture diagram, like leaf01 or spine01, by modifying /etc/hostname and /etc/hosts. Modify your DNS settings if needed. You can add your domain, search domain, and nameserver entries to the /etc/resolv.conf file. 3. Configure Leaf Switches Define the interfaces you will use on each switch and their roles. This is all done in the /etc/network/interfaces file on each switch. Open your /etc/network/interfaces file and add the following sections: # Active ports <% spine-ports = [49,50] client-ports = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,3 0,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48] %> Next, set up a policy to set up the client ports: # Create strings for the bridge <% portstr = ' '.join(client-ports) %> Next, set the MTU on the client-facing ports, set the ports to edge ports within STP, and block on seeing BPDU frames: % for i in client-ports: auto swp${i} iface swp${i} bridge-access 1 mtu 9000 mstpctl-portadminedge yes mstpctl-bpduguard yes % endfor Loopback Configuration Create the global loopback for the switch: auto lo iface lo inet loopback

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