Groups for data path view
The
OpenFlow Monitor
→
Groups
view provides information on group actions, if any, defined
for the device. The group actions can assign more specific forwarding actions.
Figure 26 Groups view for a specific OpenFlow device
OpenFlow topology
The
OpenFlow Topology
screen displays a topology of discovered switches and end nodes in
the controller domain. You can view and change the graphical view of the network, as well as
compute the broadcast tree to avoid loops and broadcast storms. The shortest path is computed
using a Dijkstra graph search algorithm. The OpenFlow topology screen:
•
Displays a topology of discovered switches and end nodes.
•
Identifies the ports discovered on a given switch. Interface name and OpenFlow numbers
are displayed
•
Identifies the shortest path between two nodes.
•
Provides node identification options (such as MAC or IP address label).
•
Provides a view of switch port identifiers, active flow rules, and a tool for testing flow rule
options.
CAUTION:
Do not configure a looped topology in the network between the OpenFlow and
non-OpenFlow portions of your network unless you enable Spanning Tree Protocol on the non
OpenFlow devices operating in the network.
NOTE:
In a topology where two or more controlled switches connect to the same uncontrolled
switch, the controller will not learn the location of hosts directly connected to the uncontrolled
switch.
See also:
•
“Displaying the network Topology” (page 62)
•
“Using keyboard shortcuts to change the display” (page 62)
•
“Changing the topology display using the View menu” (page 65)
OpenFlow topology
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