G709 Fec - Cisco ASR 9000 Series Command Reference Manual

Dense Wavelength Division Multiplexing Commands on the Cisco ASR 9000 Series Router

g709 fec

To configure the Forward Error Correction (FEC) mode for the DWDM controller, use the g709 fec command
in DWDM configuration mode. To return to the default state, use the no form of this command.
g709 fec {[disable]| enhanced| standard| ci-bch| high-gain-sd-fec| long-haul-sd-fec}
no g709 fec {disable| enhanced| standard}
Syntax Description
disable
enhanced
standard
ci-bch
high-gain-sd-fec
long-haul-sd-fec
Command Default
Standard FEC mode is enabled by default.
Command Modes
DWDM configuration
Command History
Release
Release 3.9.0
Release 5.3.1
Release 5.3.2
Usage Guidelines
Note The enhanced FEC mode supported on the Cisco CRS Router (ITU-T G.975.1 I.7) and the Cisco ASR 9000
Series Router (ITU-T G.975.1 I.4) are different and therefore, incompatible. To support interoperability
of DWDM between these routers, standard FEC must be configured.
The g709 fec command can be used only when the DWDM controller port is in the out-of-service administrative
state. You stop operation using the admin-state out-of-service command.
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Disables FEC.
Enables ITU-T G.975.1 I.4 FEC.
Enables standard FEC mode.This is the default.
Continuously Interleaved BCH FEC
7% CISCO SD FEC.
20% CISCO SD FEC.
Modification
This command was introduced.
The ci-bch keyword was introduced.
The high-gain-sd-fec and long-haul-sd-fec keywords were introduced
on the A9K-400G-DWDM-TR line card.
g709 fec
Release 5.3.x
9