HTTP Downloads cancels when LDP enabled

RouterOS Forwarding Protocols
1

Hi Im having a Issue from 3 months ago could not resolve it and had searched on the web without any clue.
I have the following topology

Need to activate MPLS on the network for giving customers services like l3 vpn.

My problem is that when I have a customer from site 78 via a wireless link and I activate LDP on Site 80 every https / http downloads cancels giving out the error “Network Error”
I have notice that when I disable there’s not issue whith downloads any single.

Running ROS: 6.44.5

From Site 80 I have OSPF to other sites I have
I have enabled Jumbo Frame on PTP links, Checked the Switch Configurations and MTU are set to 9216 on the switches.

here are some ss from the configurations
Site 80




Site 78

The Vlans from the PTP has 9000 MTU Configured

2

Typically the issue you are describing indicates a problem with MTU somewhere.

What are your MTU settings for.

L2
L3
MPLS

?

3

I setup the following

CCR1009
On the Trunk Interface:
L3 MTU:1500
L2 MTU: 1580
MPLS MTU: 1530

On the vlan Is has
L3 MTU: 1500
L2 MTU(Autoconfigure to): 1576

AirFiber: JumboFramce Activated on both PTP

Site 1 Edgepoint S16: MTU on all interfaces 9216
Site 2 EdgeSwitch; MTU on all interfaces 9216

Test of ping of 1472 + 28 =1500

Error from chrome

When I shutdown LDP on Site A I accomplish the download

4

The first thing I would do is connect a router locally to Site 80 that isn’t over the wireless link, enable MPLS and see i it’s still an issue.

Does this hapen to all HTTP/HTTPs sites or only some of them?

5

What is your advertise filter set to?

6

I got 10.0.0.0/24 advertise yes
0.0.0.0/0 advertise no

Is setup on all routers, our forwarding table carries all labels for loopbacks