Network Router User Manual

5-6
Cisco ONS 15530 Configuration Guide and Command Reference
78-14227-01, Cisco IOS Release 12.1(10)EV2
Chapter 5 Configuring Transponder Line Card Interfaces
About Transponder Line Card Channel Frequencies
The following example shows how to display the clock rate configuration of a transparent interface:
Switch# show interfaces transparent 10/0/0
Transparent10/0/0 is administratively up, line protocol is up
Encapsulation: Unknown
Clock rate: 1000000 KHz
Signal monitoring: off
Time of last "monitor" state change never
Time of last "encapsulation" change never
Forward laser control: Off
Configured threshold Group: None
Loopback not set
Last clearing of "show interface" counters never
Hardware is transparent
About Transponder Line Card Channel Frequencies
The transponder line card supported by the Cisco ONS 15530 is tunable to one of two frequencies. These
frequencies are adjacent on the ITU grid. For example, a transponder line card can support the
frequencies for channel 5 and channel 6, but not for channel 5 and channel 8. By default, the
transponder line card operates at the laser frequency for the lower channel number. However, you can
configure the transponder line card to operate at the laser frequency for the higher channel number using
the CLI.
Configuring Transponder Line Card Channel Frequency
To select the desired channel frequency for the transponder line cards supported by the
Cisco ONS 15530, perform the following steps, beginning in global configuration mode:
Note The laser requires approximately 10 seconds to change to the new frequency and stabilize. Any laser
frequency commands entered during this time are ignored.
Example
The following example shows how to change the transponder line card channel frequency:
Switch(config)# interface wave 10/0
Switch(config-if)# laser frequency 195700
Command Purpose
Step 1
Switch(config)# interface wave
slot/subcard
Switch(config-if)#
Selects the wave interface to configure and enters interface
configuration mode.
Step 2
Switch(config-if)# laser frequency
number
Selects one of the two frequencies in GHz supported by the
laser. The default is the lower frequency for the transponder
module.