10-13-2011 02:05 AM
Hello,
I have a network based on ME-3800-X
I use MPLS/Vpls technologie and too VRF/MPLS
The VPLS works but at times, there has @mac flapping between tunnel EoMPLS of VPLS.
For exemple :
Oct 13 05:52:46: %SW_MATM-4-MACFLAP_NOTIF: Host 0016.177b.17e1 in vlan 3990 is flapping between port VP6 and port VP7
Oct 13 05:52:59: %SW_MATM-4-MACFLAP_NOTIF: Host 0016.177b.17e1 in vlan 3990 is flapping between port VP9 and port VP5
Oct 13 06:02:56: %SW_MATM-4-MACFLAP_NOTIF: Host 0016.177b.17e1 in vlan 3990 is flapping between port VP5 and port VP8
Oct 13 06:03:58: %SW_MATM-4-MACFLAP_NOTIF: Host 0016.177b.17e1 in vlan 3990 is flapping between port VP9 and port VP6
Oct 13 06:04:49: %SW_MATM-4-MACFLAP_NOTIF: Host 001c.c436.6410 in vlan 3990 is flapping between port VP7 and port VP5
Oct 13 06:08:27: %SW_MATM-4-MACFLAP_NOTIF: Host 0016.1780.68df in vlan 3990 is flapping between port VP5 and port VP8
Oct 13 06:11:14: %SW_MATM-4-MACFLAP_NOTIF: Host 001e.0b62.4990 in vlan 3990 is flapping between port VP7 and port VP5
Oct 13 06:26:28: %SW_MATM-4-MACFLAP_NOTIF: Host 001e.0b62.4990 in vlan 3990 is flapping between port VP7 and port VP5
Oct 13 06:43:38: %SW_MATM-4-MACFLAP_NOTIF: Host 0016.1726.0459 in vlan 3990 is flapping between port VP1 and port VP5
Oct 13 07:07:44: %SW_MATM-4-MACFLAP_NOTIF: Host 001e.0b62.4990 in vlan 3990 is flapping between port VP7 and port VP5
Oct 13 07:07:46: %SW_MATM-4-MACFLAP_NOTIF: Host 001e.0b62.4990 in vlan 3990 is flapping between port VP5 and port VP9
Oct 13 08:48:58: %SW_MATM-4-MACFLAP_NOTIF: Host 0016.1780.6c03 in vlan 3990 is flapping between port VP7 and port VP1
Oct 13 08:50:07: %SW_MATM-4-MACFLAP_NOTIF: Host 0090.ec08.0f66 in vlan 3990 is flapping between port VP7 and port VP1
Oct 13 09:23:52: %SW_MATM-4-MACFLAP_NOTIF: Host 001d.920c.0bd2 in vlan 3990 is flapping between port VP7 and port VP1
Spit-horizon is OK on VPLS.
I think a bug
An other question :
How to see who is the end for VP xx ??
ME-3800-X , Version 15.1(2)EY
Configuration for VPLS, ( E-BGP
!
l2 vfi L2_NM_L2 autodiscovery
vpn id 3990
!
interface GigabitEthernet0/1
description Inerco L3 - DSI
switchport trunk allowed vlan none
switchport mode trunk
service instance 3990 ethernet
encapsulation dot1q 225,256,726,728,733-737,741,743,755,1000
bridge-domain 3990
!
interface Vlan3990
description VPLS_VOIP_SIA
no ip address
xconnect vfi L2_NM_L2
end
******
Regards,
10-13-2011 08:20 AM
Hello Auvinet,
You could check you VFI status and the neighbors it connects through using the command
1) show mpls l2 vc - if you know the vpn id, you should see all the neighbors for that VFI
2) show vfi "VFI name"
As for the MAC flaps, there seems to be some STP issue happening in the L2 VLAN somewhere. I would suggest checking your sites for STP loop
Regards,
Anand
10-14-2011 02:06 AM
hi Anand,
No information for VP
There 's no loop in the network, No spanning tree.
I am sure.
sw_pn_cun101_tb#show mpls l2 vc
Local intf Local circuit Dest address VC ID Status
------------- -------------------------- --------------- ---------- ----------
VFI L2_NM_L2 VFI 172.30.0.2 3990 DOWN
VFI L2_NM_mgmt \
VFI 172.30.0.2 3999 DOWN
VFI L2_NM_L2 VFI 172.30.0.3 3990 UP
VFI VPLS_TAN VFI 172.30.0.3 3998 DOWN
VFI L2_NM_mgmt \
VFI 172.30.0.3 3999 UP
VFI L2_NM_L2 VFI 172.30.0.4 3990 DOWN
VFI L2_NM_mgmt \
VFI 172.30.0.4 3999 DOWN
VFI L2_NM_L2 VFI 172.30.0.5 3990 UP
VFI L2_NM_mgmt \
VFI 172.30.0.5 3999 UP
VFI L2_NM_L2 VFI 172.30.0.6 3990 UP
VFI L2_NM_mgmt \
VFI 172.30.0.6 3999 UP
VFI L2_NM_L2 VFI 172.30.0.7 3990 UP
VFI L2_NM_mgmt \
VFI 172.30.0.7 3999 UP
Vl959 Eth VLAN 959 172.30.0.8 959 UP
VFI L2_NM_L2 VFI 172.30.0.8 3990 UP
VFI VPLS_TAN VFI 172.30.0.8 3998 DOWN
VFI L2_NM_mgmt \
VFI 172.30.0.8 3999 UP
VFI L2_NM_L2 VFI 172.30.0.9 3990 DOWN
VFI VPLS_TAN VFI 172.30.0.9 3998 DOWN
VFI L2_NM_mgmt \
VFI 172.30.0.9 3999 UP
VFI L2_NM_L2 VFI 172.30.0.10 3990 DOWN
VFI L2_NM_mgmt \
VFI 172.30.0.10 3999 UP
VFI L2_NM_L2 VFI 172.30.0.11 3990 UP
VFI L2_NM_mgmt \
VFI 172.30.0.11 3999 UP
172.30.0.12 3998 DOWN
sw_pn_cun101_tb#sh vfi name L2_NM_L2
Legend: RT=Route-target, S=Split-horizon, Y=Yes, N=No
VFI name: L2_NM_L2, state: up, type: multipoint
VPN ID: 3990, VPLS-ID: 65000:3990
RD: 65000:3990, RT: 65000:3990
Local attachment circuits:
Vlan3990
Neighbors connected via pseudowires:
Peer Address VC ID Discovered Router ID S
172.30.0.3 3990 172.30.0.3 Y
172.30.0.2 3990 172.30.0.2 Y
172.30.0.9 3990 172.30.0.9 Y
172.30.0.10 3990 172.30.0.10 Y
172.30.0.11 3990 172.30.0.11 Y
172.30.0.7 3990 172.30.0.7 Y
172.30.0.6 3990 172.30.0.6 Y
172.30.0.5 3990 172.30.0.5 Y
172.30.0.8 3990 172.30.0.8 Y
172.30.0.4 3990 172.30.0.4 Y
10-14-2011 02:24 AM
Most probably your are hitting CSCts07998, Wait for the fix
10-14-2011 03:10 AM
That is very interesting. A very close match.
Auvinet,
Do you what triggered these logs? Any commands executed on any of the PEs in the VP?
Regards,
Anand
10-14-2011 08:57 AM
Hi guys:
I have the same problem but no access to CSCts07998 details.
Could anybody please include here those details (description, severity, workaround, etc)?
Regards
Ricardo
02-02-2015 02:25 AM
Hi,
4715575: .Feb 2 5:09:29.406: %SW_MATM-4-MACFLAP_NOTIF: Host 4c1f.cc1b.742 in vlan 1232 is flapping between port VP7 and port VP1
ME3800#sho vfi nam 3GH
Legend: RT=Route-target, S=Split-horizon, Y=Yes, N=No
VFI name: 3GH, state: up, type: multipoint
VPN ID: 1232
Local attachment circuits:
Vlan1232
Neighbors connected via pseudowires:
Peer Address VC ID S
10.0.200.26 331916232 Y
10.0.200.93 331913232 N
10.0.200.46 331916232 Y
10.0.200.29 331919232 Y
10.0.200.11 331911232 Y
10.0.200.10 331910232 Y
10.0.200.208 331911232 Y
How should I do next?
02-02-2015 03:10 AM
Hi,
I don't know....
I think macflapp occurs when a type of multicast packets go across the MPLS VPLS.
It's a Bug.
I have also same problem.
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