Fec-Mism - Cisco NCS 2000 series Troubleshooting Manual

FEC-MISM

DETAILED STEPS
Step 1
To troubleshoot an FE condition, determine which node and card link directly to the card reporting the FE alarm. For
example, an FE condition on a card in Slot 12 of Node 1 could link to the main condition from a card in Slot 6 of Node
2.
Step 2 Log into the node that links directly to the card reporting the FE condition.
Step 3
Complete the Clear a BLSR External Switching Command, on page 448
If the condition does not clear, log into the Technical Support Website at
for more information or call Cisco TAC (1 800 553-2447).
FEC-MISM
Default Severity: Major (MJ), Service-Affecting (SA)
Logical Object: TRUNK
The Forward Error Correction (FEC) Mismatch alarm applies to all cards featuring FEC/E-FEC capability:
TXP_MR_10G, TXP_MR_10E, TXP_MR_10E_C, TXP_MR_10E_L, TXP_MR_2.5G, TXPP_MR_2.5G,
MXP_10G, MXP_MR_10E, ADM-10G, and OTU2_XP. FEC-MISMATCH is reported only on the card
configured in Standard FEC mode or with FEC disabled. A card configured in enhanced FEC mode will report
an OTUK-LOF , on page 343
The alarm is related to ITU-T G.709 encapsulation and is only raised against a trunk port.
When the OUT2 client is directly connected with another OTU2 client with standard FEC and Disabled FEC
on either side, the FEC-MISM alarm is not raised on the 400G-XP-LC card. The Uncorrected FEC Word
condition is raised on the standard FEC side.
Clear the FEC-MISM Alarm
SUMMARY STEPS
1. In node view (single-shelf mode) or shelf view (multishelf mode), double-click the TXP_MR_10G,
TXP_MR_10E, TXP_MR_10E_C, TXP_MR_10E_L, TXP_MR_2.5G, TXPP_MR_2.5G, MXP_MR_10G,
MXP_MR_10E, ADM-10G, and OTU2_XP card.
2. Click the Provisioning > OTN > OTN Lines tabs.
3. In the FEC column, click Enable to activate the FEC feature. This causes a different OTN frame to be
transmitted. Alternately, in the E-FEC column (TXP_MR_10E and MXP_MR_10E), click Enable to
activate the Enhanced FEC feature.
4. Verify that the far-end card is configured the same way by repeating
on page
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
200
alarm.
201.
procedure.
http://www.cisco.com/c/en/us/support/index.html
Step 1, on page 201
Alarm Troubleshooting
through Step 3,