Users Guide

Table Of Contents

OpenFlow 1725

IP Routing, IP Multicast, and Layer-2 Multicast

The OpenFlow component uses the same hardware resources as the routing

and IP multicast components. Namely, the OpenFlow component uses the

Next-Hop entries and Multicast Group entries in the hardware.

The routing and multicast Dell EMC Networking OpenFlow Hybrid feature

gracefully handles the out-of-resources errors.

Port Mirroring

The OpenFlow component is not active on probe ports. OpenFlow

configuration is retained but not operational when a port is set as a probe

port.

LLDP and Voice VLAN

The LLDP and Voice VLAN features do not interact with OpenFlow directly.

The ODL controller proactively installs the flow to redirect all the incoming

LLDP traffic to the controller. Then, it sends LLDP packet to the switch and

installs the flows to flood all the incoming traffic to all the physical ports on

the switch and to the ODL controller. As all the switches in the controller's

network have the rule to redirect the LLDP traffic to the controller, the

controller is able to build the network topology. To allow the switch to process

incoming LLDP traffic and the ODL controller to build the topology, an

overriding flow with "NORMAL" and "CONTROLLER" actions should be

installed manually.