Cambium Networks PTP 820 Series, User Manual, Page: 464 / 1149

Chapter 8: Ethernet Protocols Configuring G.8032
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Configuring Timers
You can configure timers per ERPI to control the ERPI's switching and convergence parameters. The following
timers are available:
•
Wait to Restore (WTR) Timer – Defines a minimum time the system waits after signal failure is recovered
before reverting to idle state.
•
Guard Time – Prevents unnecessary state changes and loops.
•
Hold-Off Time – Determines the time period from failure detection to response.
To configure the ERPI timers:
1 Select Ethernet > Protocols > G.8032 > ERPI Attribute . The G.8032 ERPI Attribute page opens ( Figure 253 ).
2 Select the ERPI and click Edit . The ERPI Attribute – Edit page opens ( Figure 259 ).
3 In the ERPI WTR field, enter the Wait to Restore (WTR) timer (in minutes). The WTR timer is a minimum
time the system waits after signal failure is recovered before reverting to idle state.
4 In the ERPI Guard Time field, enter the ERPI guard time (in msec). You must enter a multiple of 10. The
guard time is the minimum time the system waits after recovery from a signal failure before accepting new
R-APS messages. The purpose of this timer is to prevent unnecessary state changes and loops.
5 In the ERPI Holdoff Time field, enter the ERPI hold-off time (in msec). You must enter a multiple of 100. The
hold-off time determines the time period from failure detection to response.
6 Click Apply , then Close .
Viewing the ERPI Configuration and Status Parameters
The G.8032 ERPI Attribute page ( Figure 253 ) displays some of the configuration and status parameters for ERPIs
configured in the system.
To display a full list of configuration and status parameters for an ERPI:
1 Select Ethernet > Protocols > G.8032 > ERPI Attribute . The G.8032 ERPI Attribute page opens ( Figure 253 ).
2 Select the ERPI and click Edit . The ERPI Attribute – Edit page opens ( Figure 259 ).
o
Table 72 lists and describes the parameters in the ERPI configuration section of the ERPI Attribute – Edit
page.
o
Table 73 lists and describes the parameters in the ERPI status section of the ERPI Attribute – Edit page.
Table 72 Attached Interface Types
Parameter Definition
ERPI ID Read-only. A unique ID that identifies the ERPI.
ERPI Name A descriptive name for the ERPI.
ERPI Type Read-only. The ERPI type.
ERPI Service ID Read-only. The ID of the Ethernet service to which the ERPI belongs.
Instance ID Read-only. The MSTI to which the Ethernet service is mapped. See Mapping
Ethernet Services to MSTP instances (MSTIs) .
West ERPI Port (SP) Read-only. The interface to which the west ERPI service point belongs.