Dell PowerConnect B-DCX-4s User's Guide download pdf (Page 63)

Flow Vision Administrator’s Guide 51

53-1002999-01

Flow Mirror management

| 040200 | 040f00 | 8058 | ffff | SOFi3 | EOFt | ELSframe | ---- | Rx | Jul 12 06:32:11:091 |

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No of Mirrored Frames: 2, No of RX Mirrored Frames: 2, No of TX Mirrored Frames: 0

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==================================================================================================

[1]+ Stopped

Repeating Flow Mirror output

To specify the number of times the output should be repeated, enter the

flow

show

flowname

-feature mirror

command with the

-count

num

parameter. The

num

value can range from 1

through 10. The default value is 1.

flow --create flowname -feature mirror flow_parameters -count num

Sorting Flow Mirror output

To sort the data output for a flow, enter the flow --show flowname -feature generator command

with the -sortby column_num parameter. The column_num value is the number of the output

column on which the data is to be sorted.

flow --create flowname -feature mirror flow_parameters -sortby column_num

In Flow Mirror, mirrored frames can be sorted whether or not sub-flows are present. The -sortby

parameter can only be applied when there is only one feature specified in the flow --show

flowname command.

Learning in Flow Mirror flows

Flow Mirror supports learning for both source and destination devices. To apply learning to a

Flow Mirror flow, use an asterisk inside quotation marks ("*") to specify the parameter to be

learned. For a learning flow, if the frame type is specified in the flow definition, the -frametype value

must be a fixed value for the flow to work. Refer to “Flow frametype parameters” on page 4 for a list

of valid -frametype values. The following example creates a Flow Mirror flow using the learning

capability to mirror traffic from any device ingressing through port 1/20.

switch:admin> flow --create flow_abc -feature mirror –ingrport 1/20

-srcdev "*" -dstdev "*"

Deactivating Flow Mirror flows

To deactivate a Flow Mirror flow, enter flow --deactivate flowname -feature mirror. The following

example deactivates the Flow Mirror flow named “Flow1”.

switch:admin> flow --deactivate Flow1 -feature mirror

Automatic deactivation of a Flow Mirror flow

Flow Vision automatically deactivates a Flow Mirror flow if any of the following changes to a port

defined as part of the flow occur:

• An ingress or egress port defined in the flow has the port type change to other than an F_Port.

You must manually reactivate the flow.

• A port speed changes to be greater than 8 Gbps. You must manually reactivate the flow.

• Slot power being powered off for ingress or egress ports. Reactivation occurs automatically

when the power is restored.

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Dell PowerConnect B-DCX-4s User's Guide Page 63

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