H3C Technologies H3C S12500 Series Switches - Manual (Page 9)

2
• OpenFlow-hybrid—Supports both OpenFlow operation and traditional Ethernet switching
operations. The S12500 switches are OpenFlow-hybrid switches.
OpenFlow port
OpenFlow supports the following types of ports:
• Physical port—Corresponds to a hardware interface of a switch, such as a Layer 2 Ethernet
interface. A physical port can be either an ingress port or an output port.
• Logical port—Does not correspond to a hardware interface of a switch, such as a Layer 2
aggregate interface. A logical port can be either an ingress port or an output port.
• Reserved port—Defined by OpenFlow to specify forwarding actions. Reserved ports include the
following types:
{
All—All ports that can be used to forward a packet.
{
Controller—OpenFlow controller.
{
Table—Flow table.
{
In port—Packet ingress port.
{
Any—Generic port description. The port cannot be used as an ingress port or output port.
{
Local—Local CPU.
{
Normal—Normal forwarding process.
{
Flood—Flooding.
Except the Any type, all reserved ports can be used only as output ports.
OpenFlow instance
Unless otherwise stated, an OpenFlow switch refers to an OpenFlow instance throughout this document.
You can configure one or more OpenFlow instances on the same device. An OpenFlow instance can
connect up to 64 controllers. A controller considers each OpenFlow instance as a separate OpenFlow
switch and deploys forwarding instructions to it.
You can configure up to 64 OpenFlow instances for an S12500 switch when it operates in either
standalone mode or IRF mode.
All OpenFlow instances configured on an S12500 switch can establish up to 128 connections with
controllers when the switch operates in either standalone mode or IRF mode.
Associated VLAN
When an OpenFlow instance is associated with VLANs, the flow entries take effect on packets only
within those VLANs.
Activation and reactivation
The configurations for an OpenFlow instance take effect only after the OpenFlow instance is activated.
The controller can deploy flow entries to an OpenFlow instance only after the OpenFlow instance reports
the following device information to the controller:
• Support capabilities for OpenFlow.
• Information about ports that belongs to the OpenFlow instance.