LMP-WDM - Link Group IDs in Fault Localization

[Duncan Walker <duncan@abelon.com>]

I have a question on an aspect of behaviour relating to Link Group IDs 
in fault localization in LMP-WDM.

The LMP-WDM spec section 2.4 states the following:

    Each data link is identified by an Interface_ID. In addition, a Link
    Group ID may be assigned to a group of data links (see Section
    2.3.1). The Link Group ID may be used to reduce the control traffic
    by providing channel status information for a group of data links. A
    new LINK GROUP CHANNEL_STATUS object is defined below for this
    purpose. This object may be used in place of the CHANNEL_STATUS
    objects described in [RFC4204] in the ChannelStatus message.

This specifies that the Link Group IDs may be present in ChannelStatus 
messages but not the ChannelStatusRequest message.

So say we send a ChannelStatus message containing a Link Group ID to the 
upstream node.  If an Ack is not received or we do not receive a 
corresponding ChannelStatusMessage result then when we prompt the 
upstream node with a ChannelStatusRequest message we need to use the 
interface ids of the datalinks contained in the Link Group ID rather 
than the Link Group ID itself.

Is this the intended behaviour ?

Thanks

Duncan