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Viewing the flow entry history, Managing groups – H3C Technologies H3C Intelligent Management Center User Manual

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Viewing the flow entry history

Perform this task to view the history information of a flow entry. The following events are recorded in the

history of a flow entry:

The flow entry is automatically deleted due to expiration.

An IMC operator or controller deletes the flow entry.

To view the history of a flow entry:

1.

Access the flow entry list page.

2.

In the flow entry list, click History.
OF entry history list contents

{

Table ID—ID of the flow table to which the flow entry belongs.

{

Match Field—Match fields of the flow entry. For more information about match fields, see
"

Match fields

."

{

Priority—Matching precedence of the flow entry. A flow entry with a higher priority matches
first.

{

Hard Timeout—Lifetime of the flow entry after it is added to a flow table. When the hard timeout
expires, the flow entry is automatically deleted.

{

Idle Timeout—The maximum idle time of the flow entry. If the flow entry matches no packet
within the idle timeout, the flow entry is automatically deleted.

{

DPID—DPID of the OpenFlow instance to which the flow entry belongs. A DPID uniquely
identifies an OpenFlow instance.

{

Creation Time—Time when the flow entry is created.

{

Clearing Time—Time when the flow entry is deleted.

{

Deleted By—If the flow entry is deleted by an operator in IMC, the operator name is displayed.
Otherwise this field is Null.

{

Details—Click the Details icon

to view detailed information about the flow entry. For more

information about flow entry details, see "

Viewing flow entry details

."

Managing groups

The ability for a flow entry to point to a group enables OpenFlow devices to apply additional forwarding

methods. A group table consists of group entries. An OpenFlow switch can have only one group

table.

Figure 24

shows the components of a group entry.

Figure 24 Group entry components

For more information about the group entry components, referenced in

Figure 24

, see version 1.3.1 of the

Open Networking Foundation "OpenFlow Switch Specification" located at:

https://www.opennetworking.org/images/stories/downloads/sdn-resources/onf-specifications/open

flow/openflow-spec-v1.3.1.pdf