Cisco Systems 8540 CSR appendix Verifying the POS Configuration, Lais pais plop prdi slof, Slos

Chapter 4 Configuring Interfaces

Configuring the POS OC-12c Uplink Interface (Catalyst 8540)

To configure a delay in triggering the line protocol of the interface from going down, perform the following steps beginning in global configuration mode:

	Command	Purpose
Step 1
	Router(config)# interface pos	Enters interface configuration mode and specifies the POS
	slot/subslot/interface	interface to configure.
	Router(config-if)#
Step 2
	Router(config-if)# pos report	Permits console logging of selected SONET alarms.
	{lais pais plop prdi slof	The alarms are as follows:
	slos}
		• lais (line alarm indication signal)
		• pais (path alarm indication signal)
		• plop (path loss of pointer)
		• prdi (path remote defect indication)
		• slof (section loss of frame)
		• slos (section loss of signal)
		The slof and slos errors are reported by default.
Step 3
	Router(config-if)# pos delay	Delays triggering the line protocol of the interface from going
	triggers {line path} millisecond	down. Delay can be set from 50 to 10000 ms. If no time intervals
		are specified, the default delay is set to 100 ms.

Verifying the POS Configuration

To verify the configuration of the POS OC-12c uplink interface, use the following commands:

Command	Purpose
show interfaces pos [slot/subslot/interface]	Displays detailed information about the POS
	interface.
show protocols pos [slot/subslot/interface]	Displays status information for the active network
	protocols
show controllers pos [slot/subslot/interface]	Displays clock source, SONET alarms and error
	rates, and register values to assist in
	troubleshooting.

	Layer 3 Switching Software Feature and Configuration Guide
4-22	78-6235-04, Cisco IOS Release 12.0(10)W5(18)