Display ID for an RTP connection

You can use the DISPLAY ID command to get information about an RTP connection. The resources that can be displayed and the most useful output messages are as follows:

To display the RTP major node, use the command:
```
D NET,ID=ISTRTPMN
```
- Message IST1487I displays information about RTP ALS resources subordinate to the RTP major node:
  RTP NAME
  
  The RTP ALS name.
  
  STATE
  
  The connection state of the RTP ALS. Two states are presented: CONNECTED and CONNECTED/PSWITCH.
  
  DESTINATION CP
  
  The CPNAME of the adjacent RTP edge node.
  
  TYPE
  
  The RTP connection type: LULU for RTPs with LU-LU sessions, RSTP for Route_Setup RTPs, and CPCP for RTPs with CP-CP sessions.
To display an RTP ALS, use the command:
```
D NET,ID=rtp_als_name
```
- Message IST1479I displays the RTP connection state.
- Message IST1461I displays the portion of the session path managed by the RTP connection.
- Message IST875I displays the adjacent link station for the RTP connection.
- Messages IST1738I and IST1739I display the automatic network routing (ANR) labels and corresponding transmission priorities and explicit route numbers for the RTP connection.
To display an ADJCP, use the command:
```
D NET,ID=adjcp_name,ADJCP
```
- Message IST1487I displays the RTP connections related to this ADJCP.
  Note: A DISPLAY for an ADJCP representing a physically adjacent node also issues messages IST1106I presenting information on DLC-level PUs. A DISPLAY for a logically adjacent ADJCP, representing a distant RTP end-point, issues only messages IST1487I.