Hi,
I'd like to use CFM to take a link down when the remote side is not responding any more as the link is disrupted.
Platform is CRS-1 w. IOS-XR 4.1:
Here my configuration:
ethernet cfm
domain md0 level 4 id string crs_196_P2
service ma0 down-meps
continuity-check interval 100ms loss-threshold 3
efd
!
interface TenGigE0/2/0/2
description ->t1600_195_P3, xe-1/0/2
mtu 4474
service-policy output VF-QOS
ipv4 address 172.20.23.1 255.255.255.252
load-interval 30
ethernet cfm
mep domain md0 service isis-eoam mep-id 1
!
!
!
I get an error message that there is an MAID mismatch and the link is being taken down:
sh eth cfm lo meps
Defects (from at least one peer MEP):
A - AIS received 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)
P - Peer port down
Domain md0 (level 4), Service ma0
ID Interface (State) Dir MEPs/Err RD Defects AIS
----- ------------------------ --- -------- -- ------- ---
1 Te0/2/0/2 (Down) Dn 1/1 Y X
When I do a debug ethernet cfm packets I see the following messages that do not indicate an error to me:
LC/0/2/CPU0:Jul 7 23:55:26.424 : cfmd[138]: PKT-RX: IFH TenGigE0/2/0/2 ingress: CCM packet received at level 4 for domain md0, service ma0: length 75, source MAC 28c0.da4e.9900, destination MAC 0180.c200.0034: Packet processed successfully
LC/0/2/CPU0:Jul 7 23:55:26.480 : cfmd[138]: PKT-TX: IFH TenGigE0/2/0/2 egress: CCM packet sent at level 4 for domain md0, service ma0: length 98, source MAC 0007.0e50.95c5, destination MAC 0180.c200.0034
LC/0/2/CPU0:Jul 7 23:55:26.524 : cfmd[138]: PKT-RX: IFH TenGigE0/2/0/2 ingress: CCM packet received at level 4 for domain md0, service ma0: length 75, source MAC 28c0.da4e.9900, destination MAC 0180.c200.0034: Packet processed successfully
From the documentation I see that the MAID is made up of the MDID and the SMAN, but from the debug above they do seem to match.
Any ideas on what I am missing here?
TIA
