Bridge Problem, increase traffic after add interface

Hello, i have a problem in my network

when i add sfp2 in bridge2 on R1,after few minutes (1-2 minutes), the traffic on port2 of R2 increases in RX,the cpu increases to 100%

  • every Bridges had RSTP

  • with tourch, mac-protocol i don’t see arp or broadcast increases traffic, but i see protocoll 800(IP) that increases


    Config R1:

  • vlan on sfp2

    \

  • bridge1 ,port VLAN

  • bridge2 , port ether2


    /interface bridge filter
    add action=drop chain=forward dst-address=255.255.255.255/32 dst-port=5678 ip-protocol=udp mac-protocol=ip


    \


config R2

has bridge with PPPoE server with some EoIP for client

Has bridge, ether3 with some EoIP, with proxy-arp


/interface bridge
add name=Bridge1
add arp=proxy-arp l2mtu=1598 name=Bridge2 priority=0x500
add l2mtu=1598 name=bridge-LAN priority=0x8006



/interface bridge port
add bridge=bridge-LAN interface=ether2
add bridge=Bridge1 interface=“EoIP1”
add bridge=Bridge1 interface=“EoIP2”

add bridge=Bridge1 interface=“EoIPN”



add bridge=Bridge2 interface=ether3
add bridge=Bridge2 comment=“EoIPN+1”
add bridge=Bridge2 comment=“EoIPN+2”

add bridge=Bridge2 comment=“EoIPN+M”

\

config R3

/interface bridge
add name=BRIDGE1

/interface bridge port
add bridge=BRIDGE1 interface=sfp2
add bridge=BRIDGE1interface=ether2 # NOT USE


what does this traffic increse?
how can I fix it?
sorry for my English

Hello,

any proposal?