Cisco C1111-8PLTELA - Suppot for WAN portchannel for increased bandwidth?

[Drizz]

Hello,

I am looking at replacing an old site router (non-Cisco) with a Cisco C1111-8PLTELA.

Due to the remoteness of the site they aren't able to get a high bandwidth WAN connection, so currently they are using 4 (2x LTE 2x VDSL) and the existing router performs some aggregation/weighting.
Routing Protocols,
I am wondering what the best method would be to aggregate these? EtherChannel doesn't seem to be supported and default configuration in WebUI the WAN connections are Primary/Backup - I could possibly split some outbound traffic with QoS? - Any thoughts or suggestions would be a big help here.

Thanks in advance.

[Georg Pauwen]

Hello,

the simplest solution would be to use mutiple static routes for load balancing. Let's say your 2 LTE and 2 VDSL interfaces are all dialer interfaces (you can change these if your configuration looks different):

Dialer 1 (LTE 1)
Dialer 2 (LTE 2)
Dialer 3 (VDSL 1)
Dialer 4 (VDSL 2)

First, you would create routes to non-existing networks, using the dialer interfaces according to the bandwidth. In the example below, the VDSL interfaces would get twice as much traffic as the LTE interfaces:

ip route 10.1.1.1 255.255.255.255 Dialer 1
ip route 10.1.1.2 255.255.255.255 Dialer 2
ip route 10.1.1.3 255.255.255.255 Dialer 3
ip route 10.1.1.4 255.255.255.255 Dialer 3
ip route 10.1.1.5 255.255.255.255 Dialer 4
ip route 10.1.1.6 255.255.255.255 Dialer 4

Then, you create multiple static default routes:

ip route 0.0.0.0 0.0.0.0 10.1.1.1
ip route 0.0.0.0 0.0.0.0 10.1.1.2
ip route 0.0.0.0 0.0.0.0 10.1.1.3
ip route 0.0.0.0 0.0.0.0 10.1.1.4
ip route 0.0.0.0 0.0.0.0 10.1.1.5
ip route 0.0.0.0 0.0.0.0 10.1.1.6

The idea is that the more static default routes you have with a specific outgoing interface, the more traffic that interface gets. 

[Drizz]

Thanks for this, I will see if I can adapt it to do what I need.