Port-channel issue over WAN

[caiobomani]

Dear team,

I've got the scenario attached and currently have the following outputs from my equipment:

DC1-NX3548-CCT-01# show spanning-tree vlan 910

VLAN0910
Spanning tree enabled protocol rstp
Root ID Priority 25486
Address 00de.fbca.0e07
Cost 1
Port 4096 (port-channel1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 33678 (priority 32768 sys-id-ext 910)
Address 6cb2.ae8b.693c
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Po1 Root FWD 1 128.4096 (vPC) P2p
Po5 Desg FWD 2 128.4100 (vPC peer-link) Network P2p
Po30 Desg BLK 1 128.4125 (vPC) Dispute P2p

DC1-NX3548-CCT-02# show spanning-tree vlan 910

VLAN0910
Spanning tree enabled protocol rstp
Root ID Priority 25486
Address 00de.fbca.0e07
Cost 3
Port 4100 (port-channel5)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 33678 (priority 32768 sys-id-ext 910)
Address 707d.b9ac.c281
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Po1 Root FWD 1 128.4096 (vPC) P2p
Po5 Root FWD 2 128.4100 (vPC peer-link) Network P2p
Po30 Desg BLK 1 128.4125 (vPC) P2p

DC2-NX3548-CCT-01# show spanning-tree vlan 910

VLAN0910
Spanning tree enabled protocol rstp
Root ID Priority 25486
Address 00de.fbca.ba27
Cost 3
Port 4100 (port-channel5)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 33678 (priority 32768 sys-id-ext 910)
Address 6cb2.ae8b.6abc
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Po1 Root FWD 1 128.4096 (vPC) P2p
Po5 Root FWD 2 128.4100 (vPC peer-link) Network P2p
Po30 Desg FWD 1 128.4125 (vPC) P2p

DC2-NX3548-CCT-02# show spanning-tree vlan 910

VLAN0910
Spanning tree enabled protocol rstp
Root ID Priority 25486
Address 00de.fbca.ba27
Cost 1
Port 4096 (port-channel1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 33678 (priority 32768 sys-id-ext 910)
Address 6cb2.ae00.99c1
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Po1 Root FWD 1 128.4096 (vPC) P2p
Po5 Desg FWD 2 128.4100 (vPC peer-link) Network P2p
Po30 Desg FWD 1 128.4125 (vPC) P2p

From the STP perspective should be a flat straight sequence of switches, so the spanning tree should not block any of the interfaces. With that in mind, i need to identify from which carrier I'm learning that odd mac address (0026.0bf1.f01e) in Rio.

Since my interfaces are bundled in a port-channel, from the switch perspective, its learning it via the port-channel interface. Is there any command that I may use to identify specifically from which physical interface that MAC is actually coming in from?

Due to an unknown device attempting to negociate STP parameters with my devices (within the carriers network or either another customer that they might be tunneled with the same Vlan as I'm) i'm currently unable to forward traffic on VLAN 910 (vlan 900 works just fine and has an agreement that my swith in DC2 is the root for it). I need that intel so I can question the correct carrier and have them tunnel my traffic properly.

Thanks,

Caio

[caiobomani · Accepted solution]

Found it!

DC2-NX3548-CCT-01# show platform fwm info mac 0026.0bf1.f01e 910

mac vlan 1.910 mac 0026.0bf1.f01e: vlan 1.910, is_vxlan 0

mac vlan 1.910 mac 0026.0bf1.f01e: learned-on Po30 age 259550 ref_map = 'vlan if'

mac vlan 1.910 mac 0026.0bf1.f01e: nohit_count 0 hw_programmed 1 mac_clone 1, hw_leant 0

mac vlan 1.910 mac 0026.0bf1.f01e: clone from VLAN: 0

mac vlan 1.910 mac 0026.0bf1.f01e: old_if_index 'null'

mac vlan 1.910 mac 0026.0bf1.f01e: pss_flags 0

mac vlan 1.910 mac 0026.0bf1.f01e cfg attrs - not-cli-cfg not-static movable no-drop no-regmac non-netstack-learnt not-secure not-src-drop not-ipsg-static 

mac vlan 1.910 mac 0026.0bf1.f01e: mcec_flags 0x9, mac_info_flags 0, rem_if 0, sync_count 0 rcv_count 0

mac vlan 1.910 mac 0026.0bf1.f01e: CDCE Address 0:0:0:0:0:0

Mac history (Last 35 operations):

Total operations: 58:

...

  Operation: Mac create (9)

        (flags: Loc  (0x1) mac_info_flags (0x200) if: 0x1600001d hint: 0)

        at Fri Feb 15 17:16:10 2019

  Operation: Mac learned from hw (40)

        (flags: Loc  (0x1) mac_info_flags (0x0) if: 0x1600001d hint: 0)

        at Fri Feb 15 17:16:10 2019

  Operation: Mac sent to peer on local learn (15) - MAC learned locally and sent to peer

        (flags: Loc  (0x1) mac_info_flags (0x0) if: 0x1600001d hint: 0)

        at Fri Feb 15 17:16:10 2019

  Operation: Mac remote aged (11)

        (flags: Loc  (0x1) mac_info_flags (0x0) if: 0x1600001d hint: 0)

        at Fri Feb 15 17:16:10 2019

  Operation: Mac peer PVRST flush (13)

        (flags: Loc [R-Aged]  (0x9) mac_info_flags (0x0) if: 0x1600001d hint: 0)

        at Fri Feb 15 17:23:33 2019

  Operation: Mac delete (10)

        (flags: Loc [R-Aged]  (0x9) mac_info_flags (0x0) if: 0x1600001d hint: 0)

        at Fri Feb 15 17:23:33 2019

DC2-NX3548-CCT-02# show platform fwm info mac 0026.0bf1.f01e 910

mac vlan 1.910 mac 0026.0bf1.f01e: vlan 1.910, is_vxlan 0

mac vlan 1.910 mac 0026.0bf1.f01e: learned-on Po30 age 0 ref_map = 'vlan if'

mac vlan 1.910 mac 0026.0bf1.f01e: nohit_count 0 hw_programmed 1 mac_clone 1, hw_leant 0

mac vlan 1.910 mac 0026.0bf1.f01e: clone from VLAN: 0

mac vlan 1.910 mac 0026.0bf1.f01e: old_if_index 'null'

mac vlan 1.910 mac 0026.0bf1.f01e: pss_flags 0

mac vlan 1.910 mac 0026.0bf1.f01e cfg attrs - not-cli-cfg not-static movable no-drop no-regmac non-netstack-learnt not-secure not-src-drop not-ipsg-static 

mac vlan 1.910 mac 0026.0bf1.f01e: mcec_flags 0x15, mac_info_flags 0, rem_if 0x7e00001e, sync_count 0 rcv_count 1

mac vlan 1.910 mac 0026.0bf1.f01e: CDCE Address 0:0:0:0:0:0

Mac history (Last 35 operations):

Total operations: 36:

.....

  Operation: Mac create (9)

        (flags: Loc [L-Aged]  (0x15) mac_info_flags (0x0) if: 0x1600001d hint: 0)

        at Fri Feb 15 11:33:10 2019

  Operation: Peer sent and local vpc learnt (1) - MAC learned via VPC

        (flags: Loc [L-Aged]  (0x15) mac_info_flags (0x0) if: 0x1600001d hint: 0)

        at Fri Feb 15 11:33:10 2019

  Operation: Mac peer PVRST flush (13)

        (flags: Loc [L-Aged]  (0x15) mac_info_flags (0x0) if: 0x1600001d hint: 0)

        at Fri Feb 15 11:34:04 2019

  Operation: Mac delete (10)

        (flags: Loc [L-Aged]  (0x15) mac_info_flags (0x0) if: 0x1600001d hint: 0)

        at Fri Feb 15 11:34:04 2019