Dear Friends,
I have faced QinQ problem and need some feeds
I want to use qinq between my_core and Reserv_side as you see i have two physical links and I want to create redundancy using mstp
Qinq topology is readyI can ping Reser_SIDe but when unlocking both ports in sw ACTIVE and STANDBY it started mac flapping
It seems stp doesn't work
I have mstp running in my core side and it is ok using multiple links between switches
Branches connected to core using ospf I need to implement reserv side that if core will be down clients may connect directly to reserv side using routing protocol ospf
My need connect both physical line to reserv side and transfer my vlan from Core to Reserve controling them with mstp
QinQ conf at ISP side:
switchport access vlan 453
switchport mode dot1q-tunnel
l2protocol-tunnel stp
no cdp enable
Configuration
Reserv_SIDE:
Spanning tree enabled protocol mstp
Root ID Priority 32768
Address 4c4e.3529.4380
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32768 (priority 32768 sys-id-ext 0)
Address 4c4e.3529.4380
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi0/1 Desg FWD 20000 128.1 P2p Edge
Gi0/48 Desg FWD 200000 128.48 P2p
ACTIVE:SW
MST0
Spanning tree enabled protocol mstp
Root ID Priority 0
Address 0011.20bb.1700
Cost 0
Port 25 (GigabitEthernet0/25)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32768 (priority 32768 sys-id-ext 0)
Address 08d0.9f65.8900
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi0/25 Root FWD 20000 128.25 P2p
MST1
Spanning tree enabled protocol mstp
Root ID Priority 32769
Address 0011.20bb.1700
Cost 20000
Port 25 (GigabitEthernet0/25)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 08d0.9f65.8900
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi0/25 Root FWD 20000 128.25 P2p
STANDBY:SW
MST0
Spanning tree enabled protocol mstp
Root ID Priority 0
Address 0011.20bb.1700
Cost 0
Port 25 (GigabitEthernet0/25)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32768 (priority 32768 sys-id-ext 0)
Address 2893.feba.4880
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi0/1 Desg FWD 200000 128.1 P2p
Gi0/2 Desg FWD 20000 128.2 P2p Bound(PVST)
Gi0/3 Desg FWD 200000 128.3 P2p
Gi0/4 Desg FWD 20000 128.4 P2p
Gi0/5 Desg FWD 200000 128.5 P2p
Gi0/6 Desg FWD 200000 128.6 P2p
Gi0/7 Desg FWD 20000 128.7 P2p
Gi0/10 Desg FWD 20000 128.10 P2p
Gi0/25 Root FWD 20000 128.25 P2p
Gi0/26 Desg FWD 20000 128.26 P2p
Gi0/27 Desg FWD 20000 128.27 P2p
MST1
Spanning tree enabled protocol mstp
Root ID Priority 32769
Address 0011.20bb.1700
Cost 20000
Port 25 (GigabitEthernet0/25)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 2893.feba.4880
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi0/10 Desg FWD 20000 128.10 P2p
Gi0/25 Root FWD 20000 128.25 P2p
Gi0/26 Desg FWD 20000 128.26 P2p
CORE_SIDE:
spanning-tree mode mst
spanning-tree loopguard default
spanning-tree logging
spanning-tree extend system-id
!
spanning-tree mst configuration
name BoB
instance 1 vlan 48, 59, 128, 191, 352, 406
instance 2 vlan 130, 600-601
instance 3 vlan 9, 100, 300, 302
instance 4 vlan 126-127, 129
instance 5 vlan 160
instance 6 vlan 200
instance 7 vlan 942
instance 8 vlan 58, 143
instance 9 vlan 701, 903
instance 10 vlan 31, 99, 318
!
spanning-tree mst 0 priority 0
spanning-tree mst 3-4 priority 8192
!
vlan internal allocation policy ascending
CoreSwitch3750# sh span
MST0
Spanning tree enabled protocol mstp
Root ID Priority 0
Address 0011.20bb.1700
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 0 (priority 0 sys-id-ext 0)
Address 0011.20bb.1700
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi1/0/1 Desg FWD 20000 128.1 P2p
Gi1/0/2 Desg FWD 200000 128.2 P2p
Gi1/0/3 Desg FWD 200000 128.3 P2p
Gi1/0/4 Desg FWD 200000 128.4 P2p
Gi1/0/5 Desg FWD 20000 16.5 P2p Bound(PVST)
Gi1/0/6 Desg FWD 20000 16.6 P2p
Gi1/0/7 Desg FWD 20000 16.7 P2p
Gi1/0/8 Desg FWD 20000 16.8 P2p
Gi1/0/9 Desg FWD 20000 16.9 P2p
Gi1/0/10 Desg FWD 200000 128.10 P2p
Gi1/0/11 Desg FWD 200000 128.11 P2p
Gi1/0/12 Desg FWD 20000 128.12 P2p Edge
Gi1/0/13 Desg FWD 20000 128.13 P2p
Gi1/0/14 Desg FWD 200000 128.14 P2p
Gi1/0/15 Desg FWD 200000 128.15 P2p
Gi1/0/16 Desg FWD 20000 128.16 P2p
Gi1/0/17 Desg FWD 200000 128.17 Shr
Gi1/0/18 Desg FWD 20000 16.18 P2p
Gi1/0/19 Desg FWD 20000 16.19 P2p Bound(PVST)
Gi1/0/20 Desg FWD 20000 16.20 P2p Bound(PVST)
Gi1/0/21 Desg FWD 200000 128.21 P2p
Gi1/0/22 Desg FWD 200000 128.22 P2p
Gi1/0/23 Desg FWD 20000 128.23 P2p
Gi1/0/24 Desg FWD 20000 128.24 P2p Edge
Gi1/0/25 Desg FWD 20000 128.25 P2p
Gi1/0/26 Desg FWD 20000 128.26 P2p
Gi1/0/27 Desg FWD 20000 128.27 P2p
MST1
Spanning tree enabled protocol mstp
Root ID Priority 32769
Address 0011.20bb.1700
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 0011.20bb.1700
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi1/0/1 Desg FWD 20000 128.1 P2p
Gi1/0/3 Desg FWD 200000 128.3 P2p
Gi1/0/4 Desg FWD 200000 128.4 P2p
Gi1/0/5 Desg FWD 20000 16.5 P2p Bound(PVST)
Gi1/0/6 Desg FWD 20000 16.6 P2p
Gi1/0/7 Desg FWD 20000 16.7 P2p
Gi1/0/8 Desg FWD 20000 16.8 P2p
Gi1/0/9 Desg FWD 20000 16.9 P2p
Gi1/0/15 Desg FWD 200000 128.15 P2p
Gi1/0/17 Desg FWD 200000 128.17 Shr
Gi1/0/18 Desg FWD 20000 16.18 P2p
Gi1/0/20 Desg FWD 20000 16.20 P2p Bound(PVST)
Gi1/0/23 Desg FWD 20000 128.23 P2p
Gi1/0/25 Desg FWD 20000 128.25 P2p
Gi1/0/27 Desg FWD 20000 128.27 P2p
log:
%SW_MATM-4-MACFLAP_NOTIF: Host b499.babc.03c8 in vlan 8 is flapping between port Gi0/10 and port Gi0/25
Thanks
