CISCOSB-openflow-MIB

Description: Manages OpenFlow protocol configuration and SDN controller connectivity on Cisco Small Business switches.

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CISCOSB-openflow-MIB is a Cisco Small Business private MIB that manages OpenFlow protocol support, letting the switch operate as an SDN-controlled forwarding device. It exposes whether OpenFlow is supported and enabled, the TCP port and IP address of the OpenFlow controller, the protocol type used, and the default forwarding action applied when no matching flow rule exists. This is a software/control-plane configuration and status MIB: administrators use it to confirm the switch is properly connected to its SDN controller and to check the fallback forwarding behavior, which is important because a misconfigured default action or unreachable controller can leave the switch unable to forward traffic normally. It has no significant dependency on other MIBs beyond the CISCOSB private tree, though it interoperates with an external OpenFlow controller outside the SNMP framework. It is deployed on Cisco Small Business switches participating in SDN/OpenFlow-controlled network deployments. Engineers can download the CISCOSB-openflow-MIB file directly to load it into their MIB browser.

An administrator would check rlOpenFlowEnable and rlOpenFlowSupported to confirm OpenFlow is both supported and currently active, then verify rlOpenFlowServerIpAddr and rlOpenFlowTcpPort point to the correct SDN controller. The rlOpenFlowDefaultForwardAction reveals what happens to unmatched traffic when no flow rule applies, which is critical to check after a controller outage. If devices lose SDN connectivity, comparing rlOpenFlowEnableAfterReset against rlOpenFlowEnable can reveal that OpenFlow was disabled by a configuration reload.

Cisco SB OpenFlow switch MIB managing OpenFlow protocol support, TCP port, server configuration, and default forward actions.