> # Monitoring DWDM Links

> The DCNM-SAN Client displays DWDM links with a “dash-dash” pattern. The tooltip for the link displays “DWDM” to indicate its link type.

> To view the DWDM link, follow these steps:

> 1. Select the switch in the Logical Domain region.
> 2. Select ISL in the Physical Attributes region.

> The Information pane diplays the ISL’s information.

> 3. Click the Physical tab.

> You see the ISL in the Information pane.

> The ISL’s Physical table displays the connector type as sfpDwdm.

> Move the mouse over the link to see the tooltip as DWDM indicating the link type.

> 4. Perform a Dump Discovery of ISL to list all ISLs. DWDM links are listed with [DWDM].

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