0x1A EXNET Ring

To address a logical ring ID, use the EXNET Ring Address Element

Byte | AIB Field Description
--- | ---
2 | Address Element: 0x1A
3 | Data Length: 0x01
4 | Data[0] Logical Ring ID

Excel's open architecture, proprietary, 1.3 Gbps fiber optic network using a packet-based protocol.
The information in an AIB that follows the header, down to the data field. An AIB can have one or more Address Elements. AEs correspond to Span, Channel, and SS7 Link.
See Address Information Block.