07-01-2008 03:22 PM - edited 03-05-2019 11:56 PM
Hello I have a issue with spantree. This message appears
Jan 15 13:47:20.640 MEX: %SPANTREE-SP-7-RECV_1Q_NON_TRUNK: Received 802.1Q BPDU on non trunk GigabitEthernet1/1 VLAN7.
Jan 15 13:47:20.640 MEX: %SPANTREE-SP-7-BLOCK_PORT_TYPE: Blocking GigabitEthernet1/1 on VLAN0007. Inconsistent port type.
290052: Jan 15 13:47:25.028 MEX: %SYS-5-CONFIG_I: Configured from console by mnet onvty0 (172.18.0.120)
290053: Jan 15 13:48:11.584 MEX: %SYS-5-CONFIG_I: Configured from console by mnet onvty0 (172.18.0.120)
Jan 15 13:48:42.656 MEX: %SPANTREE-SP-2-BLOCK_BPDUGUARD: Received BPDU on port GigabitEthernet1/1 with BPDU Guard enabled. Disabling port.
Jan 15 13:48:42.656 MEX: %PM-SP-4-ERR_DISABLE: bpduguard error detected on Gi1/1, putting Gi1/1 in err-disable state
This occurs when I connect a Cat6500>SwitchAvaya>CatExpress 500.
Here are configured.
Cat6500
interface GigabitEthernet1/1
description "Hacia SW "
switchport
switchport access vlan 7
switchport mode access
no ip address
speed nonegotiate
no cdp enable
Avaya
Plane.
You can see attachment.
I need to knows what do I can configured to this work well?.
Can you help me?.
Solved! Go to Solution.
07-01-2008 11:16 PM
If you want to continue using this port as access port, then disable bpduguard on interfce:
int gi1/1
spanning-tree bpduguard disable
07-02-2008 09:09 AM
Spanning tree portfast is not recommended for switch to switch links.
07-01-2008 03:50 PM
The errors that you are seeing is because you have an access port connected to a switch that is probably a trunk and sending BPDU's. You should configure Gi1/1 as an 802.1q trunk. Since you have global BPDU guard enabled it puts the port into err-disable.
switchport mode trunk
switchport trunk encapsulation dot1q
Mark
07-01-2008 04:05 PM
Thanks for reply but I can not change it already that this access port is neccesary for that this connected to switch X without vlan or vlan1 for default so that catexpress is conneceted to switch.
that is to say.
6500 access port-- switch X(all port Vlan 1)--- CatExpress 500 (all port vlan 1) .
any change I need to do over the switch catalyst express 500. can you tell me how can I to do it?
07-01-2008 04:14 PM
I am not familiar with the CatExpress 500 series switches. You should configure the connected port as an access port on vlan 7 based on your 6500 port.
07-01-2008 04:32 PM
You can also disable the global BPDU guard and enable it on the necessary interfaces.
no spanning-tree portfast bpduguard default
On the interfaces
spanning-tree portfast bpduguard
07-01-2008 06:52 PM
In my case I need this command be over interface can I type spanning-tree portfast bpduguard into interface gi 1/1 to do disable the BPDU?
and I have other question can I to use bpdufilter and what is command correct into interface.
07-01-2008 07:04 PM
You will want to disable the global BPDU guard and enable it on the required interfaces.
07-01-2008 10:50 PM
or you can temporarily diable bpduguard and loopguard globally and enable again after you connect your switch. The problem is when you enable bpduguard globally, it is enable on all your access ports when you connect a switch to an access port, bpduguard will error disable that port when any BPDU's is detected on that port.
also remove any bpduguard or loopguard commands from your gig1/1 interface. if you are using access port in a specific vlan, then only that vlan is allowed between your switches unless you enable a trunk.
07-01-2008 11:16 PM
If you want to continue using this port as access port, then disable bpduguard on interfce:
int gi1/1
spanning-tree bpduguard disable
07-02-2008 07:37 AM
Thanks for reply. I prefers it but spanning-tree porfast also it should be in int gi 1/1?
Thanks.
07-02-2008 09:09 AM
Spanning tree portfast is not recommended for switch to switch links.
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