Technical data

Brocade MLX Series and NetIron Family Documentation Updates 15
53-1002805-03
Hybrid port mode OpenFlow
1
Hybrid port mode operation
Consider Device-1 in Figure 2. Ingress traffic on VLAN 10 on hybrid port 1/1 will be processed for
normal routing. Traffic on other VLANs will be processed against OpenFlow flows on port 1/1 and
switched accordingly. A preconfigured number of protected VLANs can be supported for normal
routing. The Spanning tree protocols (STP) state of these routing VLANs will be set to forwarding, as
the Layer 2 protocol is not supported. Normal routing is not supported on unprotected VLANs.
Configuring hybrid port mode OpenFlow
1. Enable OpenFlow at the global configuration level.
2. Configure OpenFlow controller configurations.
3. Configure the system maximum configuration for the maximum OpenFlow entries. (The default
is 0.)
4. Configure the maximum OpenFlow flow-protected VLAN entries. (The default is 0.)
NOTE
System reload is required once you change the system maximum values.
5. Configure protected VLANs on the port. A maximum of 40 protected VLANs can be configured
on an OpenFlow port.
6. Enable OpenFlow hybrid port mode on the desired interfaces.
7. Configure a VE for the interface by specifying the protected VLAN and add routing entries.
Feature information
• Switchover and HLOS are not supported. When the active management processor (MP) goes
down, communication with the controller is brought down and the flow tables on the MP and all
line processors (LP) are cleared. The connection with the controller is re-established after
switchover.
• When LP is reset, the flow table on the LP is restored once the LP comes up and flows specific
to that LP are maintained in the MP.
• When an OpenFlow enabled port goes up or down, no rules are removed. The addition or
deletion of rules depends solely on the controller.
• 4K OpenFlow content-addressable memory (CAM) entries in OpenFlow CAM for normal
OpenFlow entries are supported.
• 2K protected VLANs and ports combinations are supported.
Limitations and prerequisites
Brocade devices support version 1.0.0 of the OpenFlow protocol. The following limitations and
prerequisites apply to the configuration of OpenFlow hybrid port mode.
• Normal IPv4 and IPv6 routing are not supported on unprotected VLANs.
• IPv4 routing is only supported on OpenFlow ports in this release.
• Layer 2 or L2VPN forwarding is not supported on ports in hybrid port mode ports because MAC
learning is disabled on these ports.