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Siemens Industrial Ethernet Switches SCALANCE X-200 User Manual

Page 229

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Configuration / diagnostics using remote mechanisms

6.3 Configuration using Web Based Management (WBM) and Command Line Interface (CLI)

SCALANCE X-200
Operating Instructions, 12/2011, A5E00349864-19

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● "Source Port" display box

Shows the port that received the frame that triggered the last reaction.

● "Action" button

After the loop in the network has been eliminated, you can use this button to reset the

port again.

NOTICE

A loop is an error in the network structure that needs to be eliminated. The loop

detection can help to find the errors more quickly but does not eliminate them. The loop

detection is not suitable for increasing network availability by deliberately including

loops.

NOTICE

Loops can only be detected between devices that forward loop detection frames. Loops

via network components whose ports are set to "blocked" are not detected.

Note
Test frames create additional network load. We recommend that you only configure

individual switches, for example at branch points of the ring, as "senders" and the others

as "forwarders".

Syntax of the Command Line Interface

Table 6- 31 Loop Detection Configuration - CLI\SWITCH\LOOPD >

Command

Description

Comment

info

Displays information about the "Loop Detection

Configuration".

loopd [E | D]

Enables / disables loop detection.

Administrator only.

loopdp

[B | F | S]

Defines the behavior of a port for loop detection:

"Blocked"

"Forwarder"

"Sender"

Administrator only.

rxthres

Specifies the Rx.Threshold.

Administrator only.

local [N |

D]

Specifies the reaction to a local loop.

Administrator only.

remote

[N | D]

Specifies the reaction to a remote loop.

Administrator only.

reset

Reactivates the port if it was deactivated due to a detected

loop.

Administrator only.