Symptom:
LACP  enable router is showing the peer mep  with other router.
ROUTER ENABLE WITH LACP
-----------------------------------------
RP/0/RP1/CPU0:Z22-U-RP1#sh ethernet cfm peer  meps
Tue Apr 15 07:39:57.910 UTC
Flags:
> - Ok                          I - Wrong interval
R - Remote Defect received      V - Wrong level
L - Loop (our MAC received)     T - Timed out
C - Config (our ID received)    M - Missing (cross-check)
X - Cross-connect (wrong MAID)  U - Unexpected (cross-check)
* - Multiple errors received    S - Standby

Domain D1 (level 5), Service S1
Down MEP on Bundle-Ether1 MEP-ID 2
================================================================================
St    ID MAC Address    Port    Up/Downtime   CcmRcvd SeqErr   RDI Error
-- ----- -------------- ------- ----------- --------- ------ ----- -----
 >     1 0023.043c.ae03 Up      00:03:19           21      0     0     0
RP/0/RP1/CPU0:Z22-U-RP1#sh ethernet cfm peer  meps
Tue Apr 15 07:40:24.605 UTC
Flags:
> - Ok                          I - Wrong interval
R - Remote Defect received      V - Wrong level
L - Loop (our MAC received)     T - Timed out
C - Config (our ID received)    M - Missing (cross-check)
X - Cross-connect (wrong MAID)  U - Unexpected (cross-check)
* - Multiple errors received    S - Standby

Domain D1 (level 5), Service S1
Down MEP on Bundle-Ether1 MEP-ID 2
================================================================================
St    ID MAC Address    Port    Up/Downtime   CcmRcvd SeqErr   RDI Error
-- ----- -------------- ------- ----------- --------- ------ ----- -----
 >     1 0023.043c.ae03 Up      00:03:45           23      0     0     0
RP/0/RP1/CPU0:Z22-U-RP1#sh run interface tenGigE 0/2/1/0
Tue Apr 15 07:43:07.677 UTC
interface TenGigE0/2/1/0
 bundle id 1 mode active
 lacp period 1000
!


and the otherside is not formed.

ROUTER NOR ENABLE WITH LACP
-------------------------------------
RP/0/RP0/CPU0:Z22-U-RP0#sh ethernet cfm peer  meps
Tue Apr 15 07:42:43.998 UTC
RP/0/RP0/CPU0:Z22-U-RP0#

RP/0/RP0/CPU0:Z22-U-RP0#sh run interface tenGigE 0/0/0/2
Tue Apr 15 07:45:49.692 UTC
interface TenGigE0/0/0/2
 bundle id 1 mode on
!

CE2
--------------------------
RP/0/RP1/CPU0:Z25#sh et cfm pe me | be Domain D3000
Wed May 21 11:37:46.318 UTC
Domain D3000 (level 4), Service S1
Down MEP on TenGigE0/0/0/3.1 MEP-ID 3001
================================================================================
St    ID MAC Address    Port    Up/Downtime   CcmRcvd SeqErr   RDI Error
-- ----- -------------- ------- ----------- --------- ------ ----- -----
 T  3000 7cad.740a.7bc9 Up      00:00:40        54478      1     0     0
RP/0/RP1/CPU0:Z25#   


PE2
----------
P/0/RP0/CPU0:ios#conf t
Thu May 22 11:37:48.065 UTC
RP/0/RP0/CPU0:ios(config)#interface tenGigE 0/2/0/6.1
RP/0/RP0/CPU0:ios(config-subif)#shut
RP/0/RP0/CPU0:ios(config-subif)#commit
Thu May 22 11:38:08.323 UTC
RP/0/RP0/CPU0:ios(config-subif)#do sh et cfm pe me
Thu May 22 11:38:14.986 UTC
Flags:
> - Ok                          I - Wrong interval
R - Remote Defect received      V - Wrong level
L - Loop (our MAC received)     T - Timed out
C - Config (our ID received)    M - Missing (cross-check)
X - Cross-connect (wrong MAID)  U - Unexpected (cross-check)
* - Multiple errors received    S - Standby

Domain D3000 (level 4), Service S1
Down MEP on TenGigE0/2/0/6.1 MEP-ID 3000
================================================================================
St    ID MAC Address    Port    Up/Downtime   CcmRcvd SeqErr   RDI Error
-- ----- -------------- ------- ----------- --------- ------ ----- -----
 T  3001 10f3.11b7.6a2c Up      00:00:03        54862      2     0     0

RP/0/RP0/CPU0:ios#sh install active summary
Thu May 22 11:37:35.458 UTC
Default Profile:
  Admin Resources
  SDRs:
    Owner
  Active Packages:
    disk0:hfr-mini-px-5.1.3.05I
    disk0:hfr-mpls-px-5.1.3.05I
    disk0:hfr-px-5.1.3.05I.CSCuo62468-0.0.5.i
    disk0:hfr-px-5.1.3.05I.CSCuo68159-0.0.3.i
    disk0:hfr-px-5.1.3.05I.CSCuo80322-0.0.4.i
    disk0:hfr-px-5.1.3.05I.CSCuo29515-0.0.3.i

Conditions:
Two router set up one is LACP enable and other is LACP disable.