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Cisco ONS 15310-MA SDH Reference Manual, Release 9.1 and Release 9.2
78-19417-01
Chapter 7 Circuits and Tunnels
Circuit Properties
By default, the working path on the detailed circuit map is indicated by a green bidirectional arrow, and
the protect path is indicated by a purple bidirectional arrow. Source and destination ports are shown as
circles with an S and D. Port states are indicated by colors, shown in Table 7-3.
Notations within or next to the squares or selector pentagons on each node indicate switches and other
conditions. For example:
• F = Force switch
• M = Manual switch
• L = Lockout switch
• Arrow = Facility (outward) or terminal (inward) loopback (Figure 7-1)
Figure 7-1 Terminal Loopback in the Edit Circuits Window
Move the mouse cursor over nodes, ports, and spans to see tooltips with information including the
number of alarms on a node (organized by severity), a port’s service state, and the protection topology.
Table 7-3 Port State Color Indicators
Port Color State
Green unlocked-enabled
Gray locked-enabled,disab
led
Purple locked-disabled,Auto
matic In Service
Light blue locked-enabled,main
tenance
