Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

VLAN Trunking Error Message (Spanning Tree)

Help!

I am getting the following error message when attempting to set up a trunk between a 6509 and 2900XL switch:

16:04:05: %SPANTREE-2-RECV_1Q_NON_TRUNK:

Received 802.1Q BPDU on non trunk FastEthernet0/1 on vlan 100.

16:04:05: %SPANTREE-2-BLOCK_PORT_TYPE: Blocking FastEthernet0/1 on vlan 100.

Inconsistent port type

What am I doing wrong!

Many thanks,

JM

3 REPLIES

Re: VLAN Trunking Error Message (Spanning Tree)

Hi,

it seems like port configured as 802.1q trunk on 6509 side but as acess port on 2900XL side.

Check if there are

int fa 0/1

switchport trunk encapsulation dot1q

switchport mode trunk

commands in the 2900XL config.

Regards,

Milan

New Member

Re: VLAN Trunking Error Message (Spanning Tree)

Milan,

Thanks for your prompt response, I have now got the trunk to work by ensuring that the interfaces on both switches are on the same native VLAN. However, I am now unable to PING the default router even though I have created a VLAN interface with an IP address and default gateway of the MFSC switch.

Any ideas?

Man thanks,

JM

Re: VLAN Trunking Error Message (Spanning Tree)

Hi,

you need

interface VLANx

ip address ........

no shutdown

!

ip default-gateway ..........

in your switch config.

The default gateway address must be the IP address of your default router which has to be in VLANx.

Regards,

Milan

149
Views
0
Helpful
3
Replies
CreatePlease login to create content