Prueba de compatibilidad spanning-tree
entre switches Aruba, Huawei y Cisco
Fecha: 18 de noviembre del 2022
Escenario
Se realiza la quinta prueba de la saga, ahora testeando la compatibilidad STP entre switches Huawei 5720,
un HP Aruba 2530 con su versión de PVST y un Cisco Catalyst 2960.
Nuevamente probamos el “triangulito” spanning-tree de CCNA pero con las tres marcas diferentes.
1.- Verificación inicial de las conexiones:
1.1.-
En el switch Huawei:
<HUAWEI>disp lldp nei brief
Local Intf
Neighbor Dev Neighbor
Intf Exptime(s)
GE0/0/1 Cisco2960-1 Gi1/0/2 103
GE0/0/2 HP-2530-24G-PoEP 1 109
<HUAWEI>
1.2.- En el switch Cisco:
Cisco2960-1#sh lldp nei
Capability codes:
(R)
Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device
(W)
WLAN Access Point, (P) Repeater, (S) Station, (O) Other
Device ID Local Intf Hold-time Capability Port ID
HP-2530-24G-PoEP Gi1/0/1 120 B 2
HUAWEI Gi1/0/2 120 B,R GigabitEthernet0/0/1
Total entries displayed: 2
Cisco2960-1#
1.3.-
En el switch Aruba:
HP-2530-24G-PoEP# sh lldp info remote-device
LLDP
Remote Devices Information
LocalPort | ChassisId
PortId PortDescr SysName
--------- + ------------------ ------------------ --------- -------------------------
1 | 3c e8 24 7d 14 10 GigabitEthernet0/0/2 Gigabi... HUAWEI
2 | Cisco2960-1 GigabitEthernet1/0/1 Gigabi... Cisco2960-1
HP-2530-24G-PoEP#
2.- Config preliminar en el switch Aruba:
En este lab pretendemos que cada uno de los switches tenga su función de root para cada vlan,
como el Cisco tiene la MAC mas baja, forzaremos al resto con la priority.
2.1.- En el switch
Huawei:
[HUAWEI]stp
vlan 2 priority 4096
[HUAWEI]
2.2.- En el switch
Aruba:
HP-2530-24G-PoEP(config)# spanning-tree vlan 3 priority ?
<0-15> Set the device STP priority for
the specified VLANs (the
value is in
range of 0-61440 divided into steps of 4096
that are
numbered from 0 to 15, default is step 8).
HP-2530-24G-PoEP(config)# spanning-tree vlan 3 priority 1 ( 1 x 4096 = 4096 )
HP-2530-24G-PoEP(config)#
HP-2530-24G-PoEP(config)# spanning-tree pathcost rapid-pvst 8021d (para que los 3 tengan el mismo valor de costo)
HP-2530-24G-PoEP(config)#
3.- Verificación
spanning-tree:
3.1.- En el switch
Huawei:
[HUAWEI]disp
stp brief
VLAN-ID
Port
Role STP State Protection
1 GigabitEthernet0/0/1 ROOT
FORWARDING NONE
1 GigabitEthernet0/0/2 DESI
FORWARDING NONE
2 GigabitEthernet0/0/1 DESI
FORWARDING NONE
2 GigabitEthernet0/0/2 DESI
FORWARDING NONE
3 GigabitEthernet0/0/1 ALTE
DISCARDING NONE
3 GigabitEthernet0/0/2 ROOT
FORWARDING NONE
[HUAWEI]
[HUAWEI]disp
stp vlan 1
-------[VLAN 1 Global Info][Mode VBST]-------
Bridge ID :32768.3ce8-247d-1410
Bridge Diameter :7
Config Times :Hello 2s MaxAge 20s FwDly 15s
Active Times :Hello 2s MaxAge 20s FwDly 15s
Root ID / RPC :32768.005f-86a7-2a00 / 4 (el switch Cisco con la MAC mas baja)
RootPortId :128.4093 (GigabitEthernet0/0/1)
Root Type :Normal
BPDU-Protection :Disabled
STP Converge Mode :Normal
Time since last TC :0 days 0h:8m:43s
Number of TC :193
----[Port4093(GigabitEthernet0/0/1)][FORWARDING]----
Port
Role :Root Port
Port Priority :128
Port
Cost(Dot1D) :Config=Auto / Active=4
Desg.
Bridge/Port :32768.005f-86a7-2a00 /
128.2
Port
Edged :Config=Default /
Active=Disabled
Point-to-point :Config=Auto / Active=True
Transit
Limit :6 packets/hello
Protection Type :None
Port STP
Mode :VBST
BPDU
Encapsulation :Config=VBST / Active=VBST
BPDU
Sent :0
TCN: 0, Config: 0, RST: 0
BPDU
Received :0
TCN: 0, Config: 0, RST: 0
----[Port4092(GigabitEthernet0/0/2)][FORWARDING]----
Port
Role :Designated Port
Port
Priority :128
Port
Cost(Dot1D) :Config=Auto / Active=4
Desg.
Bridge/Port :32768.3ce8-247d-1410 /
128.4092
Port
Edged :Config=Default / Active=Disabled
Point-to-point :Config=Auto / Active=True
Transit
Limit :6 packets/hello
Protection Type :None
Port STP
Mode :VBST
BPDU
Encapsulation :Config=VBST / Active=VBST
BPDU
Sent :0
TCN: 0, Config: 0, RST: 0
BPDU
Received :0
TCN: 0, Config: 0, RST: 0
[HUAWEI]
[HUAWEI]disp
stp vlan 2
-------[VLAN 2 Global Info][Mode VBST]-------
Bridge ID :4096 .3ce8-247d-1410
Bridge Diameter :7
Config Times :Hello 2s MaxAge 20s FwDly 15s
Active Times :Hello 2s MaxAge 20s FwDly 15s
Root ID / RPC :4096 .3ce8-247d-1410 / 0 (This bridge is the root) (el switch Huawei)
RootPortId :0.0
Root Type :Normal
BPDU-Protection :Disabled
STP Converge Mode :Normal
Time since last TC :0 days 0h:1m:42s
Number of TC :149
----[Port4093(GigabitEthernet0/0/1)][FORWARDING]----
Port
Role :Designated Port
Port
Priority :128
Port
Cost(Dot1D) :Config=4 / Active=4
Desg.
Bridge/Port :4096 .3ce8-247d-1410 /
128.4093
Port
Edged :Config=Default /
Active=Disabled
Point-to-point :Config=Auto / Active=True
Transit
Limit :6 packets/hello
Protection Type :None
Port STP
Mode :VBST
BPDU
Encapsulation :Config=VBST / Active=VBST
BPDU
Sent :0
TCN: 0, Config: 0, RST: 0
BPDU
Received :0
TCN: 0, Config: 0, RST: 0
----[Port4092(GigabitEthernet0/0/2)][FORWARDING]----
Port
Role :Designated
Port
Port
Priority :128
Port
Cost(Dot1D) :Config=Auto / Active=4
Desg.
Bridge/Port :4096 .3ce8-247d-1410 /
128.4092
Port
Edged :Config=Default /
Active=Disabled
Point-to-point :Config=Auto / Active=True
Transit
Limit :6 packets/hello
Protection Type :None
Port STP
Mode :VBST
BPDU
Encapsulation :Config=VBST / Active=VBST
BPDU
Sent :0
TCN: 0, Config: 0, RST: 0
BPDU
Received :0
TCN: 0, Config: 0, RST: 0
[HUAWEI]
[HUAWEI]disp
stp vlan 3
-------[VLAN 3 Global Info][Mode VBST]-------
Bridge ID :32768.3ce8-247d-1410
Bridge Diameter :7
Config Times :Hello 2s MaxAge 20s FwDly 15s
Active Times :Hello 2s MaxAge 20s FwDly 15s
Root ID / RPC :4096 .98f2-b349-f0a0 / 4 (el switch Aruba)
RootPortId :128.4092
(GigabitEthernet0/0/2)
Root Type :Normal
BPDU-Protection :Disabled
STP Converge Mode :Normal
Time since last TC :0 days 0h:4m:28s
Number of TC :5
----[Port4093(GigabitEthernet0/0/1)][DISCARDING]---- (por tener la MAC mas alta que el Cisco)
Port Role :Alternate Port
Port
Priority :128
Port
Cost(Dot1D) :Config=Auto / Active=4
Desg.
Bridge/Port :32768.005f-86a7-2a00 /
128.2
Port
Edged :Config=Default /
Active=Disabled
Point-to-point :Config=Auto / Active=True
Transit
Limit :6 packets/hello
Protection Type :None
Port STP
Mode :VBST
BPDU
Encapsulation :Config=VBST / Active=VBST
BPDU
Sent :0
TCN: 0, Config: 0, RST: 0
BPDU
Received :0
TCN: 0, Config: 0, RST: 0
----[Port4092(GigabitEthernet0/0/2)][FORWARDING]----
(hacia el switch Aruba)
Port
Role :Root Port
Port
Priority :128
Port
Cost(Dot1D) :Config=Auto / Active=4
Desg.
Bridge/Port :4096 .98f2-b349-f0a0 /
128.1
Port
Edged :Config=Default /
Active=Disabled
Point-to-point :Config=Auto / Active=True
Transit
Limit :6 packets/hello
Protection Type :None
Port STP
Mode :VBST
BPDU
Encapsulation :Config=VBST / Active=VBST
BPDU
Sent :0
TCN: 0, Config: 0, RST: 0
BPDU
Received :0
TCN: 0, Config: 0, RST: 0
[HUAWEI]
3.2.- En el switch Cisco:
Cisco2960-1#sh spanning-tree
VLAN0001
Spanning tree enabled protocol rstp
Root ID Priority 32769 (32768 + 1)(por la vlan 1)
Address 005f.86a7.2a00 (es el switch con la MAC mas baja, por eso no se toca la priority)
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 005f.86a7.2a00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost
Prio.Nbr Type
------------------- ---- --- --------- --------
-----------
Gi1/0/1 Desg FWD
4 128.1 P2p
Gi1/0/2 Desg FWD
4 128.2 P2p
VLAN0002
Spanning tree enabled protocol rstp
Root
ID Priority 4098
(4096 + 2)(por la vlan 2)
Address 3ce8.247d.1410 (el switch Huawei)
Cost 4
Port 2
(GigabitEthernet1/0/2)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge
ID Priority 32770
(priority 32768 sys-id-ext 2)
Address 005f.86a7.2a00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role
Sts Cost Prio.Nbr Type
------------------- ---- --- --------- --------
----------
Gi1/0/1 Desg FWD 4 128.1 P2p
Gi1/0/2 Root FWD 4 128.2 P2p
VLAN0003
Spanning tree enabled protocol rstp
Root
ID Priority 4099
(4096 + 3)(por la vlan 3)
Address 98f2.b349.f0a0 (el switch Aruba)
Cost 4
Port 1
(GigabitEthernet1/0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge
ID Priority 32771
(priority 32768 sys-id-ext 3)
Address
005f.86a7.2a00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- --------
--------------------------------
Gi1/0/1 Root FWD 4 128.1 P2p
Gi1/0/2 Desg FWD 4 128.2 P2p
Cisco2960-1#
3.2.- En el switch Aruba:
HP-2530-24G-PoEP# sh spanning-tree vlan 1
Spanning
Tree Information
STP
Enabled [No] : Yes
Mode :
RPVST
Extended System ID :
Enabled
Ignore
PVID Inconsistency : Disabled
Switch
MAC Address : 98f2b3-49f0a0
VLAN
ID : 1
RPVST
Enabled : Enabled
Root
MAC Address : 005f86-a72a00 (el switch Cisco)
Root Priority : 32,768 (al tener la MAC mas baja no es necesario tocar la priority)
Root Path Cost : 5
Root
Port : 2
Operational Hello Time (secs) : 2
Topology Change Count :
6
Time
Since Last Change : 12 secs
Root
Inconsistent Ports :
Loop
Inconsistent Ports :
PVID
Inconsistent Ports :
Designated
Port Type Cost
Priority Role State Bridge
-----
---------- --------- --------- ---------- ---------- --------------------------
1 100/1000T
5 128 Alternate Blocking 98f2b3-49f0a0
2 100/1000T
5 128 Root Forwarding 005f86-a72a00
-resumido-
HP-2530-24G-PoEP#
HP-2530-24G-PoEP# sh spanning-tree vlan 2
Spanning
Tree Information
STP
Enabled [No] : Yes
Mode :
RPVST
Extended System ID :
Enabled
Ignore
PVID Inconsistency : Disabled
Switch
MAC Address : 98f2b3-49f0a0
VLAN
ID : 2
RPVST
Enabled : Enabled
Root
MAC Address : 3ce824-7d1410 (el switch Huawei)
Root
Priority : 4096
Root
Path Cost : 5
Root
Port : 1
Operational Hello Time (secs) : 2
Topology Change Count :
11
Time
Since Last Change : 34 mins
Root
Inconsistent Ports :
Loop
Inconsistent Ports :
PVID
Inconsistent Ports :
Designated
Port Type Cost
Priority Role State Bridge
-----
---------- --------- --------- ---------- ----------------- ---------------
1 100/1000T
5 128 Root Forwarding 3ce824-7d1410
2 100/1000T
5 128 Alternate Blocking 005f86-a72a00
HP-2530-24G-PoEP#
HP-2530-24G-PoEP# sh spanning-tree vlan 3
Spanning
Tree Information
STP
Enabled [No] : Yes
Mode : RPVST
Extended System ID :
Enabled
Ignore
PVID Inconsistency : Disabled
Switch
MAC Address : 98f2b3-49f0a0
VLAN
ID : 3
RPVST
Enabled : Enabled
Root
MAC Address : 98f2b3-49f0a0 (el switch Aruba)
Root
Priority : 4096
Root
Path Cost : 0
Root
Port : This switch is root
Operational Hello Time (secs) : 2
Topology Change Count :
15
Time
Since Last Change : 26 secs
Root
Inconsistent Ports :
Loop
Inconsistent Ports :
PVID
Inconsistent Ports :
Designated
Port Type Cost
Priority Role State Bridge
-----
---------- --------- --------- ---------- ---------- ------------------------
1 100/1000T
5 128 Designated Forwarding 98f2b3-49f0a0
2 100/1000T
5 128 Designated Forwarding 98f2b3-49f0a0
HP-2530-24G-PoEP#
4.- Pruebas de caída del enlace Cisco-Aruba:
4.1.- Verificamos previamente en el switch Aruba:
HP-2530-24G-PoEP# sh spanning-tree vlan 1
Spanning
Tree Information
STP
Enabled [No] : Yes
Mode :
RPVST
Extended System ID :
Enabled
Ignore
PVID Inconsistency : Disabled
Switch
MAC Address : 98f2b3-49f0a0
VLAN
ID : 1
RPVST
Enabled : Enabled
Root
MAC Address : 005f86-a72a00
Root
Priority : 32,768
Root
Path Cost : 5 (un segmento de 5 hasta el Cisco)
Root
Port : 2
Operational Hello Time (secs) : 2
Topology Change Count :
14
Time
Since Last Change : 49 secs
Root
Inconsistent Ports :
Loop
Inconsistent Ports :
PVID
Inconsistent Ports :
Designated
Port Type Cost
Priority Role State Bridge
-----
---------- --------- --------- ---------- ---------- ---------------
1 100/1000T
5 128 Alternate Blocking 3ce824-7d1410
2 100/1000T
5 128 Root Forwarding 005f86-a72a00
---resumido---
HP-2530-24G-PoEP#
4.2.- Ce el enlace:
Cisco2960-1#conf t
Enter configuration commands, one per
line. End with CNTL/Z.
Cisco2960-1(config)#int Gi1/0/1
Cisco2960-1(config-if)#shut
Cisco2960-1(config-if)#
4.3.- Verificamos el tiempo de convergencia:
Respuesta desde 192.168.1.4: bytes=32 tiempo=2ms TTL=255
Respuesta desde 192.168.1.4: bytes=32 tiempo=1ms TTL=255
Tiempo de espera agotado para esta solicitud.
Respuesta desde 192.168.1.4: bytes=32 tiempo=2ms TTL=255
Respuesta desde 192.168.1.4: bytes=32 tiempo=2ms TTL=255
4.4.- Verificamos previamente en el switch Aruba:
HP-2530-24G-PoEP# sh spanning-tree vlan 1
Spanning
Tree Information
STP
Enabled [No] : Yes
Mode :
RPVST
Extended System ID :
Enabled
Ignore
PVID Inconsistency : Disabled
Switch
MAC Address : 98f2b3-49f0a0
VLAN
ID : 1
RPVST Enabled : Enabled
Root
MAC Address : 005f86-a72a00
Root
Priority : 32,768
Root
Path Cost : 9 (5 hasta el Huawei + 4 hasta el Cisco)
Root
Port : 1
Operational Hello Time (secs) : 2
Topology
Change Count : 9
Time
Since Last Change : 22 secs
Root
Inconsistent Ports :
Loop
Inconsistent Ports :
PVID
Inconsistent Ports :
Designated
Port
Type Cost Priority
Role State Bridge
-----
---------- --------- --------- ---------- ---------- ---------------
1 100/1000T
5 128 Root Forwarding
3ce824-7d1410
2 100/1000T
0 128 Disabled Disabled
---resumido---
HP-2530-24G-PoEP#
4.5.- Verificamos desde el Cisco al Aruba:
Cisco2960-1#sh spann vlan 3
VLAN0003
Spanning tree enabled protocol rstp
Root
ID Priority 4099
(4096 + 3)
Address 98f2.b349.f0a0 (el switch Aruba)
Cost 8 (4 hasta el Huawei y 4 hasta el Aruba)
Port 2
(GigabitEthernet1/0/2)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge
ID Priority 32771
(priority 32768 sys-id-ext 3)
Address 005f.86a7.2a00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- --------
--------------------------------
Gi1/0/2 Root FWD 4 128.2 P2p
Cisco2960-1#
4.6.- Se reestablece el enlace:
Cisco2960-1(config)#int Gi1/0/1
Cisco2960-1(config-if)#no shut
Cisco2960-1(config-if)#
4.7.- Verificamos en el Cisco:
Cisco2960-1#sh spann vlan 3
VLAN0003
Spanning tree enabled protocol rstp
Root
ID Priority 4099
Address 98f2.b349.f0a0
Cost 4 (un segmento hasta el Huawei)
Port 1 (GigabitEthernet1/0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge
ID Priority 32771
(priority 32768 sys-id-ext 3)
Address 005f.86a7.2a00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- --------
--------------------------------
Gi1/0/1 Root FWD 4 128.1 P2p
Gi1/0/2
Desg FWD 4 128.2 P2p
Cisco2960-1#
5.- Se simula la caída entre el switch Huawei y el Cisco:
5.1.- Generamos la caida:
Cisco2960-1#conf t
Enter configuration commands, one per
line. End with CNTL/Z.
Cisco2960-1(config)#int gi1/0/2
Cisco2960-1(config-if)#shut
Cisco2960-1(config-if)#
5.2.- Verificamos en el switch Huawei:
[HUAWEI]disp
stp vlan 1
-------[VLAN 1 Global Info][Mode VBST]-------
Bridge ID :32768.3ce8-247d-1410
Bridge Diameter :7
Config Times
:Hello 2s MaxAge 20s FwDly
15s
Active Times :Hello 2s MaxAge 20s FwDly 15s
Root ID / RPC :32768.005f-86a7-2a00 / 9 ( 5 hasta el Aruba + 4 hasta el Cisco )
RootPortId :128.4092
(GigabitEthernet0/0/2)
Root Type
:Normal
BPDU-Protection :Disabled
STP Converge Mode :Normal
Time since last TC :0 days 0h:0m:1s
Number of TC :223
----[Port4093(GigabitEthernet0/0/1)][DOWN]----
Port
Role :Disabled Port
Port
Priority :128
Port
Cost(Dot1D) :Config=Auto / Active=65535
Desg.
Bridge/Port :32768.3ce8-247d-1410 / 128.4093
Port
Edged :Config=Default /
Active=Disabled
Point-to-point :Config=Auto / Active=False
Transit
Limit :6 packets/hello
Protection Type :None
Port STP
Mode :VBST
BPDU
Encapsulation :Config=VBST / Active=VBST
BPDU
Sent :0
TCN: 0, Config: 0, RST: 0
BPDU
Received :0
TCN: 0, Config: 0, RST: 0
----[Port4092(GigabitEthernet0/0/2)][FORWARDING]----
Port
Role :Root Port
Port
Priority :128
Port
Cost(Dot1D) :Config=Auto / Active=4
Desg.
Bridge/Port :32768.98f2-b349-f0a0 /
128.1
Port
Edged :Config=Default /
Active=Disabled
Point-to-point :Config=Auto / Active=True
Transit
Limit :6 packets/hello
Protection Type :None
Port STP
Mode :VBST
BPDU
Encapsulation :Config=VBST / Active=VBST
BPDU
Sent :0
TCN: 0, Config: 0, RST: 0
BPDU
Received :0
TCN: 0, Config: 0, RST: 0
[HUAWEI]
6.- Prueba de PVID inconsistente entre Huawei y Aruba:
Esta prueba verifica si entre el Huawei y el Aruba se detectan el PVID inconsistente, tal como hicimos contra el Cisco (ver lab ).
6.1.- Cambiamos el PVID en el switch Huawei:
[HUAWEI]int
gi0/0/2
[HUAWEI-GigabitEthernet0/0/2]port trunk pvid vlan 2
[HUAWEI-GigabitEthernet0/0/2]
6.2.- Verificamos en el switch Huawei:
[HUAWEI]disp
stp abnormal-interface
VLAN-ID
Interface
Status Reason
1 GigabitEthernet0/0/2 DISCARDING PVID-Inconsistency
2 GigabitEthernet0/0/2 DISCARDING PVID-Inconsistency
[HUAWEI]
6.3.- Verificamos en el switch Aruba:
HP-2530-24G-PoEP# sh spanning-tree
inconsistent-ports
VLAN
ID Blocked Port Reason
---------- ------------
-------------------------
1 1 Pvid Inconsistent
2 1 Pvid Inconsistent
HP-2530-24G-PoEP#
7.- Diferencias de BPDUs entre marcas:
Tal como hicimos en el primer lab de compatibilidad, comparamos cada campo de BPDU entre las tres marcas.
Frame 2: 64 bytes on wire (512 bits), 64
bytes captured (512 bits)
IEEE
802.3 Ethernet (BPDU switch Huawei)
Destination: 01:00:0c:cc:cc:cd
Source: 3c:e8:24:7d:14:10
Length: 50
Logical-Link Control
IEEE 802.3 Ethernet (BPDU switch Cisco)
Destination: 01:00:0c:cc:cc:cd
Source: 00:5f:86:a7:2a:01
Length: 50
Logical-Link Control
IEEE 802.3 Ethernet (BPDU switch Aruba)
Destination: 01:00:0c:cc:cc:cd
Source: 98:f2:b3:49:f0:be
Length: 50
Logical-Link Control
Spanning Tree Protocol (BPDU switch Huawei)
Protocol Identifier: Spanning Tree Protocol (0x0000)
Protocol Version Identifier: Rapid Spanning Tree (2)
BPDU
Type: Rapid/Multiple Spanning Tree (0x02)
BPDU
flags: 0x3c, Forwarding, Learning, Port Role: Designated
0... .... = Topology Change Acknowledgment: No
.0.. .... = Agreement: No
..1. .... = Forwarding: Yes
...1 .... = Learning: Yes
.... 11.. = Port Role: Designated (3)
.... ..0. = Proposal: No
.... ...0 = Topology Change: No
Spanning Tree Protocol (BPDU switch Cisco)
Protocol Identifier: Spanning Tree Protocol (0x0000)
Protocol Version Identifier: Rapid Spanning Tree (2)
BPDU
Type: Rapid/Multiple Spanning Tree (0x02)
BPDU
flags: 0x0e, Port Role: Designated, Proposal
0...
.... = Topology Change Acknowledgment: No
.0.. .... = Agreement: No
..0. .... = Forwarding: No
...0 .... = Learning: No
.... 11.. = Port Role: Designated (3)
.... ..1. = Proposal: Yes
....
...0 = Topology Change: No
Spanning Tree Protocol (BPDU switch Aruba)
Protocol Identifier: Spanning Tree Protocol (0x0000)
Protocol Version Identifier: Rapid Spanning Tree (2)
BPDU
Type: Rapid/Multiple Spanning Tree (0x02)
BPDU
flags: 0x4e, Agreement, Port Role: Designated, Proposal
0... .... = Topology Change Acknowledgment: No
.1.. .... = Agreement: Yes
..0. .... = Forwarding: No
...0 .... = Learning: No
.... 11.. = Port Role: Designated (3)
.... ..1. = Proposal: Yes
.... ...0 = Topology Change: No
Root
Identifier: 32768 / 2 / 00:5f:86:a7:2a:00 (BPDU switch Huawei)
Root Bridge Priority: 32768
Root Bridge System ID Extension: 2
Root Bridge System ID: 00:5f:86:a7:2a:00
Root
Path Cost: 20000
Root Identifier: 32768 / 2 / 00:5f:86:a7:2a:00 (BPDU switch Cisco)
Root Bridge Priority: 32768
Root Bridge System ID Extension: 2
Root Bridge System ID: 00:5f:86:a7:2a:00
Root
Path Cost: 0
Root
Identifier: 32768 / 2 / 98:f2:b3:49:f0:a0 (BPDU switch Aruba)
Root Bridge Priority: 32768
Root Bridge System ID Extension: 2
Root Bridge System ID: 98:f2:b3:49:f0:a0
Root
Path Cost: 0
Bridge Identifier: 32768 / 2 / 3c:e8:24:7d:14:10
(BPDU switch Huawei)
Bridge Priority: 32768
Bridge System ID Extension: 2
Bridge System ID: 3c:e8:24:7d:14:10
Bridge Identifier: 32768 / 2 / 00:5f:86:a7:2a:00 (BPDU switch Cisco)
Bridge Priority: 32768
Bridge System ID Extension: 2
Bridge System ID: 00:5f:86:a7:2a:00
Bridge Identifier: 32768 / 2 / 98:f2:b3:49:f0:a0 (BPDU switch Aruba)
Bridge Priority: 32768
Bridge System ID Extension: 2
Bridge System ID: 98:f2:b3:49:f0:a0
Port
identifier: 0x8ffd (BPDU switch Huawei)
Message Age: 1
Max
Age: 20
Hello
Time: 2
Forward Delay: 15
Version 1 Length: 0
Port
identifier: 0x8001 (BPDU switch Cisco)
Message Age: 0
Max Age: 20
Hello
Time: 2
Forward Delay: 15
Version 1 Length: 0
Port
identifier: 0x8002 (BPDU switch Aruba)
Message Age: 0
Max
Age: 20
Hello
Time: 2
Forward Delay: 15
Version 1 Length: 0
Originating VLAN (PVID): 2 (BPDU switch Huawei)
Type: Originating VLAN (0x0000)
Length: 2
Originating VLAN: 2
Originating VLAN (PVID): 2 (BPDU switch Cisco)
Type: Originating VLAN (0x0000)
Length: 2
Originating VLAN: 2
Originating
VLAN (PVID): 2 (BPDU switch Aruba)
Type: Originating VLAN (0x0000)
Length: 2
Originating VLAN: 2
(2022) Ménage à trois avec
spanning-tree
Rosario, Argentina