Technical white paper HPN SDN Controller Link Discovery

Please see the tables below for details about whether your network configuration will meet either of the above conditions:

Discovery packet injection

Product

ProVision

Tagging of Controller-Injected Packets

In aggregation mode, the switch Openflow agent does not apply a tag to injected link discovery packets.

In virtualization mode, the switch Openflow agent adds a tag for the vlan of the instance to controller-injected discovery packets when the packet egresses a tagged port.

Comware

The switch Openflow agent does not apply a tag to injected link discovery packets.

 

 

Other Vendors

See vendor-specific documentation regarding 802.1Q vlan tagging of controller-

 

injected packets.

 

 

Discovery packet reception

Product

ProVision

Reception of Untagged Packets

Untagged direct discovery packets are properly stolen to the controller.

Untagged multi-hopdiscovery packets are associated with the untagged vlan on the port where they are received and properly stolen to the controller.

Comware

Untagged direct discovery packets are properly stolen to the controller if the

Comware device is running a revision of firmware which has resolved issue

 

 

201402110424 (ex: 5503L01 for 5500HI) and the pvid on each inter-switch port

 

is configured with the correct OpenFlow instance.

 

Untagged multi-hopdiscovery packets are properly stolen to the controller if the

 

ingress ports have the correct pvid configured that associates untagged packets

 

with the correct OpenFlow instance vlan.

 

NOTE: The inter-switch ports in an OpenFlow instance MUST NOT be configured

 

with “bpdu-drop any” since the direct link discovery packet MAC is in the BPDU

 

MAC range.

 

 

Other Vendors

See vendor-specific documentation regarding handling of untagged direct and

 

multi-hopdiscovery packets shown above.

 

 

Non-conforming configuration example

 

 

 

Switch A

 

 

 

 

 

 

Controller

 

 

 

Switch B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OF Inst Ax:

 

 

 

 

 

 

 

 

 

 

 

 

 

OF Inst Bx:

 

 

 

 

 

 

 

Vlan 1, 2

 

1

 

 

 

 

 

 

 

 

1

 

 

Vlan 1, 2

 

 

 

 

 

 

 

 

 

 

 

Vlan 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vlan 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Untag 3

 

 

 

 

 

 

 

 

 

Switch C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vlan 1, 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

OF Inst Cx:

 

 

 

 

Untag ??

 

 

Non-OpenFlow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vlan 1

 

 

 

 

 

 

 

 

Vlan 3

 

 

 

 

 

 

 

 

Vlan 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Network

 

 

3

 

 

 

1

 

 

1

 

 

OF Inst Cy:

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vlan 2

 

 

 

 

 

 

Uncontrolled

Switch

4

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Image 4
HP VAN SDN Controller Software Products manual Non-conforming configuration example, Discovery packet injection

VAN SDN Controller Software Products specifications

HP VAN SDN Controller Software Products represent a significant advancement in network management by leveraging software-defined networking (SDN) principles. These products aim to centralize control of network resources, provide enhanced automation, and simplify network management, which can dramatically improve the overall performance and agility of data centers.

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