|Eucalyptus Installation / Configure Dependencies|
For EDGE networking mode, you must configure a Linux ethernet bridge on all NCs. This bridge connects your local ethernet adapter to the cluster network. Under normal operation, NCs will attach virtual machine instances to this bridge when the instances are booted.
To configure a bridge on CentOS 7 or RHEL 7, you need to create a file with bridge configuration (for example, ifcfg-brX) and modify the file for the physical interface (for example, ifcfg-ethX). The following steps describe how to set up a bridge on both CentOS 7 and RHEL 7. We show examples for configuring bridge devices that either obtain IP addresses using DHCP or statically.
yum install bridge-utils
DEVICE=eth0 # change the hardware address to match the hardware address your NIC uses HWADDR=00:16:76:D6:C9:45 ONBOOT=yes BRIDGE=br0 NM_CONTROLLED=no
DEVICE=br0 TYPE=Bridge BOOTPROTO=dhcp ONBOOT=yes DELAY=0
DEVICE=br0 TYPE=Bridge BOOTPROTO=static IPADDR=static_IP_address NETMASK=netmask GATEWAY=gateway ONBOOT=yes
systemctl restart network.service