[c-nsp] Ethernet CFM issue

[arulgobinath emmanuel]

Hi ,
I'm testing Ethernet CFM ,after the fault restored the link still down
until i remove the CFM configuration :

RP/0/1/CPU0:12K-1#show int gigabitEthernet 0/2/0/0
Wed Aug 28 11:58:45.240 UTC
GigabitEthernet0/2/0/0 is up, line protocol is down


12k - IOS XR 4.3   with SDR i'm testing this.
Following is the setup .

R1 - [ Gig0/2/0/0] <---> [Gig0/2]  <--->SW  <--->[ Gig 0/1] <--->
 ]Gig0/3/0/0] R2

R1
-----------
ethernet cfm
 domain TEST level 7
  service CUST down-meps
   continuity-check interval 10s
   efd
  !

interface GigabitEthernet0/2/0/0
 cdp
 ipv4 address 10.19.20.1 255.255.255.0
 ethernet cfm
  mep domain TEST service CUST mep-id 101
  !


R2

---------

ethernet cfm
 domain TEST level 7
  service CUST down-meps
   continuity-check interval 10s
   efd
  !


interface GigabitEthernet0/3/0/0
 cdp
 ipv4 address 10.19.20.2 255.255.255.0
 ethernet cfm
  mep domain TEST service CUST mep-id 101
  !
 !

When i shut down the  Gig 0/1 on the switch its bringing down both relevant
Xr ports as expected.
 But when i no shut the switch port both XR interfaces are showing as
protocol down not coming up until i remove the ethernet cfm configuration.



RP/0/0/CPU0:12K-2#show ethernet cfm local meps verbose
Wed Aug 28 08:56:40.475 UTC
Domain TEST (level 7), Service CUST
Down MEP on GigabitEthernet0/3/0/0 MEP-ID 101
================================================================================
  Interface state: Down    MAC address: 001f.9d8d.aaa0
  Peer MEPs: 1 up, 1 with errors, 0 timed out (archived)

  CCM generation enabled:  Yes (Remote Defect detected: Yes)
  CCM defects detected:    R - Remote Defect received
                           C - Config (our ID received)
  AIS generation enabled:  No
  Sending AIS:             No
  Receiving AIS:           No
  EFD triggered:           Yes

  Packet        Sent      Received
  ------  ----------
 ---------------------------------------------------------
  CCM            363           338  (out of seq: 1)
  LBM              0             0
  LBR              0             0  (out of seq: 0, with bad data: 0)
  AIS              0             0
  LCK              -             0


I'm new to CFM , hope i'm missing something. I need only EFD feature to
bring down the interface in actual scenario . Any pointers / help in this
regard .


Regards,
Gobinath.