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Phyllo
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Posts: 5
Joined: Mon Nov 26, 2018 6:51 pm

Losing Management Ping Unless Resetting vlan-filtering on Bridge?

Fri Mar 01, 2024 2:58 am

Hi,

I am currently trying to setup a CRS518 with some bonded links to another router and two laptops (one on each side) for testing.

I have been able to get the vlan 77 between the one on the router and the one on the crs working without any issue and both laptop can ping each other, but the management that I setup on vlan 77 is spotty at best. If I temporarily turn off the vlan filtering on the bridge1 and turn it back on then the management for the SW pings. if I reboot the switch it stops completely until I repeat the process.

Could someone help me see what I am missing or whether this is expected behavior?
#RouterOS 7.14

/interface bridge
add name=bridge1 vlan-filtering=yes
/interface ethernet
set [ find default-name=sfp28-1 ] name=\
    "sfp28-1 - To Router - Port 3 - LAG #1"
set [ find default-name=sfp28-2 ] name=\
    "sfp28-2 - To Router - Port 4 - LAG #1"
/interface vlan
add interface=bridge1 name=vlan77 vlan-id=77
/interface bonding
add mode=802.3ad name=LAG1 slaves="sfp28-1 - To Router - Port 3 -\
    \_LAG #1,sfp28-2 - To Router - Port 4 - LAG #1"
/interface bridge port
add bridge=bridge1 interface=LAG1
add bridge=bridge1 interface=vlan77
add bridge=bridge1 interface=sfp28-14 pvid=77
/interface bridge vlan
add bridge=bridge1 tagged=LAG1 vlan-ids=70,72,73,75,76,78,191,2020
add bridge=bridge1 tagged=LAG1 untagged=sfp28-14 vlan-ids=77
/ip address
add address=192.168.14.32/24 interface=vlan77 network=192.168.14.0
Thanks!
 
Phyllo
just joined
Topic Author
Posts: 5
Joined: Mon Nov 26, 2018 6:51 pm

Re: Losing Management Ping Unless Resetting vlan-filtering on Bridge?

Fri Mar 01, 2024 10:00 pm

I couldn't find an answer, so I will share the workaround.
You can use this as a hybrid port.

Have vlan 77 or such come in untagged and the remainder of the vlans that are needed as tagged and put the IP on the bridge.
This gets around the issue with the bridge filtering. This is working properly even after a reboot.

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