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Layer 3 Switching Software Feature and Configuration Guide
78-6235-04, Cisco IOS Release 12.0(10)W5(18)
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:
Verifying the POS Configuration
To verify the configuration of the POS OC-12c uplink interface, use the following commands:
Command Purpose
Step 1
Router(config)# interface pos
slot/subslot/interface
Router(config-if)#
Enters interface configuration mode and specifies the POS
interface to configure.
Step 2
Router(config-if)# pos report
{lais | pais | plop| prdi | slof |
slos}
Permits console logging of selected SONET alarms.
The alarms are as follows:
• 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
triggers {line | path} millisecond
Delays triggering the line protocol of the interface from going
down. Delay can be set from 50 to 10000 ms. If no time intervals
are specified, the default delay is set to 100 ms.
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.