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MAC's learning in port Blocking RSTP

Hi. 

I have a mistakes in my Switch ME-3600X-24FS-M

This MAC's being learned by the interface Gi 0/14 but interface is using RSTP he is in blocked condition.

Why this happens, if the port this one in Alternative and alone way can receive BPDU?

I need to learn the MAC's for the Root Port

---

Sw_Entidades_ZonaFranca_C#sho spanning-tree vlan 628

VLAN0628
Spanning tree enabled protocol rstp
Root ID Priority 628
Address a40c.c383.b380
Cost 8
Port 1 (GigabitEthernet0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 8820 (priority 8192 sys-id-ext 628)
Address e8ed.f378.e500
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300

Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi0/1 Root FWD 4 128.1 P2p
Gi0/4 Desg FWD 4 128.4 P2p
Gi0/6 Desg FWD 4 128.6 P2p
Gi0/8 Desg FWD 4 128.8 P2p
Gi0/14 Altn BLK 4 128.14 P2p
Gi0/17 Desg FWD 4 128.17 P2p

**************************

Sw_Entidades_ZonaFranca_C#sho mac address-table vlan 628
Mac Address Table
-------------------------------------------

Vlan Mac Address Type Ports
---- ----------- -------- -----

628 001c.7f63.4073 DYNAMIC Gi0/1
628 001c.7f67.0759 DYNAMIC Gi0/14
628 6073.5cfb.348e DYNAMIC Gi0/14
628 7c69.f667.91d4 DYNAMIC Gi0/1
628 8c60.4f74.e8c4 DYNAMIC Gi0/14
628 8c60.4f75.06c4 DYNAMIC Gi0/14

Thanks for reading

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