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ukzerosniper
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Joined: Tue Jul 23, 2013 9:20 pm

MPLS TE 2x 1gbps point to point links

Sun Jan 13, 2019 11:23 pm

Hi Guys,

I borrowed the ascii art idea from another thread to which I have a similar issue, but not the same.

I have two sites linked with a Siklu 2500FX (2gbps radio over 2x 1gbps ethernet at each side).

I have eth1 on R1 connected to Eth1 on the siklu at site one.
I have eth2 on R1 connected to Eth2 on the siklu at site one.

I have eth1 on R2 connected to Eth1 on the siklu at site two.
I have eth2 on R2 connected to Eth2 on the siklu at site two.

Currently, I run OSPF ECMP across the links and everything works great! However, we now want to deploy MPLS on the network.

MikroTik support told me that we can achieve the same or similar results using TE with MPLS. Without TE MPLS only uses 1 of the links. It doesnt use both.

What I think I would like to do is setup TE between R1 and R2 in a way that it will use Eth1 <---> Eth1 up to 900Mbps then start using Eth2 <----> Eth2 up to 900Mbps.

I have spent maybe 20hours or so in GNS3 trying to figure this out with no luck. Is there anyone here that can come and save the day and show me how to create a config along these lines.

Thanks guys.
		Eth1----> Siklu2500FX Eth1 ~~~Wireless link~~~ Siklu2500FX Eth1 <----Eth1
Site1----- R1											R2 ----- Site2
		Eth1----> Siklu2500FX Eth1 ~~~Wireless link~~~ Siklu2500FX Eth1 <----Eth1
			
 
mducharme
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Joined: Tue Jul 19, 2016 6:45 pm

Re: MPLS TE 2x 1gbps point to point links

Mon Jan 14, 2019 12:53 am

Hi,

This is accomplished by forcing one VPLS tunnel across one TE tunnel and the other VPLS tunnel across the other TE tunnel. The VPLS tunnels can then be used for load balancing.
 
ukzerosniper
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Topic Author
Posts: 110
Joined: Tue Jul 23, 2013 9:20 pm

Re: MPLS TE 2x 1gbps point to point links

Mon Jan 14, 2019 1:25 am

Hi,

This is accomplished by forcing one VPLS tunnel across one TE tunnel and the other VPLS tunnel across the other TE tunnel. The VPLS tunnels can then be used for load balancing.
Hi @mducharme,

Would you be able to share an example config for me that I could use to understand how this would function?

I want this link to be functional so that it can function as a normal segment in the MPLS core so that my BGP signaled VPLS connections for the end users can pass it without issue.

Thanks for your response, I really do appreciate all the help I can get at the moment as this is totally new to me.

Thanks again.
 
ukzerosniper
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Topic Author
Posts: 110
Joined: Tue Jul 23, 2013 9:20 pm

Re: MPLS TE 2x 1gbps point to point links

Mon Jan 14, 2019 3:44 pm

Hi Guys,

I managed to get RSVP TE tunnel up and running between the two routers but traffic doesn't pass over it.

I notice that the RSVP TE shows up as an Interface in the router.

Should I configure an OSPF connection between the two routers on the RSVP TE interfaces?

The issue I am currently having is that traffic is not passing over the RSVP TE connection, it is still passing via the normal interfaces.

Any assistance would be great.
 
mducharme
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Posts: 713
Joined: Tue Jul 19, 2016 6:45 pm

Re: MPLS TE 2x 1gbps point to point links

Tue Jan 15, 2019 1:45 am

Hi Guys,

I managed to get RSVP TE tunnel up and running between the two routers but traffic doesn't pass over it.

I notice that the RSVP TE shows up as an Interface in the router.

Should I configure an OSPF connection between the two routers on the RSVP TE interfaces?

The issue I am currently having is that traffic is not passing over the RSVP TE connection, it is still passing via the normal interfaces.

Any assistance would be great.
View the status of your VPLS tunnel - it should show the TE tunnel name in the "transport" field if it is using the TE tunnel. You will not generally see traffic on the TE interface itself, so you can't really use that as a way of determining whether it is working or not.

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