August 2018
Beginner
462 pages
12h 36m
English
Content preview from Learning OpenStack Networking - Third Edition
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Visualizing traffic flow when using Open vSwitch
When using the Open vSwitch driver, for an Ethernet frame to travel from the virtual machine instance to the physical network, it will pass through many different interfaces, including the following:
|
Network Type |
Interface Type |
Interface Name |
|
all |
tap |
tapN |
|
all |
bridge |
qbrXXXX (only used with the iptables firewall driver) |
|
all |
veth |
qvbXXXX, qvoXXXX (only used with the iptables firewall driver) |
|
all |
vSwitch |
br-int |
|
flat, vlan |
vSwitch |
br-ex (user-configurable) |
|
vxlan, gre |
vSwitch |
br-tun |
|
flat, vlan |
patch |
int-br-ethX, phy-br-ethX |
|
vxlan, gre |
patch |
patch-tun, patch-int |
|
flat, vlan |
physical |
ethX (where X is the interface) |
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