[MPLS-TE] Balancing 2+ different bandwidth links

RouterOS Forwarding Protocols
1

Hi folks,

I’m in a struggle with MPLS Traffic Eng in RouterOS. Let’s put an ASCII diagram to help me explain:

		      ... R1 ...
Tail ----- R2			R3 ----- Head
		      *** R4 ****
- 100M
. 10M
* 50M

So far I’m able to establish two TE tunnels between R2 and R3. In fact, they behave very well in a 1+1ish scenario.
But what If I need to aggregate both links bandwidth to achieve 60M bandwidth between tail and head?
Is it doable?

  • Cisco routers have the command “tunnel mpls traffic-eng load-share <0-1000000>”. I don’t know if this is a proprietary feature or if it’s implemented on the RFC.

Thanks!

2

good question I also tried to do, but it seems that mikrotik does not have support for load share,
Anyone know if this is possible with mikrotik?

3

If anyone could tell us just if this is supported by RouterOS is a great start! :slight_smile:

4

Currently there is no equivalent to cisco TE load-share in RouterOS.

5

Ia there any plans to implement this feature?

6

+1
Please!!!
that would be great, we need this a lot !!!

7

Can you bond two VPLS tunnels together as a workaround?

8

Check out this MUM presentation; https://mum.mikrotik.com/presentations/US17/presentation_4519_1496062656.pdf

Video of presentation here: https://www.youtube.com/watch?v=dFZz2z6RdQY

You might be able to implement something along these lines :slight_smile:

9

Thanks! I’ll have a look, but since I don’t fully understand VPLS tunnels (are they Pseudowire/L2 tunnels over MPLS?), I don’t believe it’s a solution, but sure it’s an alternative.

Thanks! Did a quick look in that presentation and it doesn’t solve my problem, since MikroTik doesn’t support for MPLS+ECMP :frowning:

10

Yes they are L2 Pseudowire tunnels over MPLS. I think you could probably do a setup where one VPLS tunnel was going through one MPLS-TE tunnel, and a second VPLS tunnel was going over a second MPLS-TE tunnel, and bond the two VPLS tunnels together.

11

Hopefully Mikrotik take a look at the way Juniper have implemented LSP Load Blancing, it works brilliantly.

https://www.juniper.net/documentation/en_US/junos/topics/usage-guidelines/mpls-configuring-load-balancing-across-rsvp-lsps.html

12

Hum… this would work, but does not comply with the KISS principle and lacks scalability. :frowning:

Yes! That’s what I’m talking about! Nice and simple! @MikroTik should we expect something like this in the near future?

13

from my point of view this is not the solution because it remains unsolved


Please implement TE Load -share on RouterOS
For years I’ve been waiting for this solution on the routeros

14

I’ve been working on a pseudo-manual method using MPLS-TE, BGP communities, and link coloring to “manually” make more preferred paths for traffic-of-interest, overriding OSPF costs.

Does this interest you?

15

Yes this interests us. I have almost the exact same issue as the OP, however, I have 2x 1Gbps links that I need to aggregate for a total of 2Gbps bandwidth over MPLS. Currently this uses OSPF ECMP, but I want to enable MPLS and this is the only thing holding me back. How to handle this one link.

16

+1 Yes please! The load-balancing feature is the only one fixture that stops me to deploy MPLS in my network

17

any news?