Cisco Systems 78-16845-01 manual 10describes the fields in Link table

Chapter 3 Building the Network

3.6.3 Viewing the Link Table

Table 3-10describes the fields in Link table.

Table 3-10	Field Descriptions for the Link Table
Field		Description
Link Alarm Severity		Highest severity alarm associated with the selected link.
Link Source ID		ID of the link source.
Link Source PTP		PTP of the link source.
Link Destination ID		ID of the link destination.
Link Destination PTP		PTP of the link destination. Because a link can have up to two destinations on the same NE, a
		“DST1” or “DST2” label is affixed to the destination to indicate the destination number.
Layer Rate		Layer rate, defined as per ITU-T standard G.872 for multilayered optical networks. Values are
		Physical, OTS, OMS, OCh, SONET/SDH, and L2.
		Layer rate, defined as per ITU-T standard G.872 for multilayered optical networks. Values are
		Physical, Optical Transmission Section - OTS, Optical Multiplex Section - OMS, Optical Channel
		Layer - OCH, SONET/SDH, and L2.
Layer Detail		Bandwidth of the link as per the layer rate:
		• For SONET links, the link rate is OC-3, OC-12, OC-48, OC-192, Layer 2, or Layer 3, depending
			on the NE configuration.
		• For SDH links, the link rate is STM1, STM-4, STM-16, STM-64, Layer 2, or Layer 3.
		• For DWDM links, values are 10G ITU, 2.5G ITU, or OTS.
		• For OCH links, the link rate is 10G ITU or 2.5G ITU.
		• For the ONS 15800, ONS 15801, and ONS 15808 NEs, the link rate is OTS.
		• For links between Not Managed/Other Vendor NEs, the link rate is Not Applicable.
		• For links between Not Managed/Other Vendor NEs and a CTC-based NE, the rate is that of the
			CTC-based NE. Links between a SONET/SDH link and a Not Managed/Other Vendor NE
			depend on the link source. If the link source is the Not Managed/Other Vendor NE, the layer
			rate is Not Applicable. If the link source is the SONET/SDH link, the layer rate will be the layer
			rate of the SONET/SDH link.
Link Direction		Whether the link is unidirectional or bidirectional.
Link Provision Type		Whether the selected link is automatically discovered by an NE. Values are:
		•	Manual—For manual links.
		• Auto—For automatically discovered links.
		•	PatchCord—For patchcord links.
		Note Autodiscovered links between transponder or muxponder cards on release 4.6 NEs are
			always reported with a constant size, regardless of payload type.

Cisco Transport Manager Release 6.0 User Guide

78-16845-01 3-35