recently because of business needs, working with the company network
We are cisco 4507 core switches, fiber core huawei s7706 pick on end, direct

idea is like this:
Divided into a common vlan96 with connection, both interface Settings for the access mode, the two sides to write static routing,

cisco vlan 96 192.168.96.10/24
Huawei vlan 96 192.168.96.20/24

After unexpectedly good pick up line, can't communicate, 96.10 and 96.20 are not Shared, ports and protocols are up state, will be connected to the interface from the access to the trunk and only allow vlan96 passthrough, 96 blocks of IP can communicate, but other vlan cannot forward data,

Will print information display to the terminal, found port in access, there are the following print information
* 08:22:30 Oct 14, 468: % SPANTREE - 2 - UNBLOCK_CONSIST_PORT: Unblocking TenGigabitEthernet4/1 on VLAN0096. Port consistency restored.
* 08:22:31 Oct 14, 466: % SPANTREE - 7 - RECV_1Q_NON_TRUNK: 802.1 Q Received bpdus on non trunk TenGigabitEthernet4/1 VLAN96.
* 08:22:31 Oct 14, 466: % SPANTREE - 7 - BLOCK_PORT_TYPE: Blocking TenGigabitEthernet4/1 on VLAN0096. The Inconsistent port type.

According to the error message, baidu, discovery is cisco and huawei spanning tree protocol does not match the cause, follow the idea of online, check the solution

View your cisco VTP status, found that the port is in the state BKN * (broken)
4507 # show spanning - tree interface tenGigabitEthernet 4/1

Vlan Role Sts Cost Prio. Nbr Type
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
VLAN0096 Desg BKN 128.385 P2p Edge * * 2 TYPE_Inc

4507 # show spanning - tree interface tenGigabitEthernet 4/1 state
VLAN0096 broken


See cisco VTP mode, found that cisco indeed as expected is to use their own proprietary protocol PVST

CD_CORE # show spanning - tree summary
The Switch is in the PVST mode
The Root bridge for: none
Extended system ID is enabled
Portfast Default is disabled
The PortFast bpdus Guard Default is disabled
The Portfast bpdus Filter Default is disabled
Loopguard Default is disabled
EtherChannel misconfig guard is enabled
UplinkFast is disabled
BackboneFast is disabled
Configured Pathcost method 2 is

check huawei STP information, found that huawei's port is not an error, in the FORWARDING state
[S7706] display STP brief,
MSTID Port Role STP State Protection,
0 XGigabitEthernet1/0/11 DESI FORWARDING NONE
0 XGigabitEthernet1/0/12 DESI FORWARDING NONE
0 XGigabitEthernet1/0/15 DESI FORWARDING NONE

to view specific information, found that huawei STP protocol is up, the global use of MSTP
[S7706] display STP interface XGigabitEthernet 1/0/15
- [Port42 (XGigabitEthernet1/0/15)]/FORWARDING -
The Port Protocol: Enabled
The Port Role: Designated Port
The Port Priority: 128
The Port Cost (Dot1T) : Config=auto/Active=2000
Designated Bridge/Port: 32768. F063 - f94d - efd0/128.42
The Port Edged: Config=default/Active=disabled
Point - to - Point: Config=auto/Active=true
Transit Limit: 6 packets/s
Protection Type: None
The Port STP Mode: the STP
The Port Protocol Type: Config=auto/Active=dot1s
BPDU Encapsulation: Config=STP/Active=STP
PortTimes: Hello 2 s MaxAge 20 s FwDly 15 s RemHop 20
TC or TCN send: 141
TC or TCN received: 256
Bpdus Sent: 232
TCN: 0, Config: 230, RST: 0, MST: 2
BPDU Received: 257
TCN: 22, Config: 235, RST: 0, MST: 0
The Last forwarding time: 2019/10/14 10:00:00 UTC



to view data, there should be two solutions :
1, had been open bpdus port information function
2, is used to match the VTP agreement, cisco is changed to the MST can

Looked at the two kinds of methods, to the difficulty of the discovery method is more suitable for 1, method 2 to require the same domain name, seems not suitable for the two companies,
You just need to enable bpdufilter under port 4507
Spanning - tree bpdufilter enable

Port configuration is as follows:
[color=# 800000] interface TenGigabitEthernet4/1
Switchport access vlan 96
Switchport mode access
Spanning - tree bpdufilter enable
[/color]



cisco end STP state also finally showed normal
CD# show spanning - tree interface tenGigabitEthernet 4/1

Vlan Role Sts Cost Prio. Nbr Type
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
VLAN0096 Desg FWD 2, 128.385 P2p


check 7706 state, display is not normal

& lt; XITC_CD_S7706_Core & gt; Display the STP vlan 96
ProcessId InstanceId Port Role the State

0 0 XGigabitEthernet1/0/15 DESI FORWARDING


Each IP communication test is normal, the feeling is solving the problem of the


finally tested bandwidth
Around 40 MB upload, download 80 MB
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