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manson
newbie
Topic Author
Posts: 32
Joined: Thu Feb 14, 2013 9:41 am

Routerboard 2011UiAS-RM level 5 stp/rstp issue

Tue Mar 01, 2016 9:32 pm

Hello

I have two RB 2011UiAS-RM connected to a HUAWEI S5720-56C-EI-48S-AC switch with trunk ports configured like this

interface GigabitEthernet0/0/4
undo negotiation auto
port link-type trunk
port trunk pvid vlan 1002
port trunk allow-pass vlan 400 1002 1100

interface GigabitEthernet0/0/5
undo negotiation auto
port link-type trunk
port trunk pvid vlan 1003
port trunk allow-pass vlan 400 1003 1100

On each MT i have sfp port with two vlans added. Each vlan has corresponding bridge interface, and there is one bridge with sfp port added. Bridge for Vlan 400 is addressed with a /24 subnet ip address.

And here is the issue.
If on bridge interfaces stp or rstp is enabled, there is no traffic to any other devices behind the huawei switch. Even mikrotiks are unreachable to each other. But MT's are visible to each other while i'm connecting them directly via sfp.
When i'm disabling stp on bridge interface everything is working fine, traffic is going through switch.

Any idea, broken stp protocol?

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