TLOC Extension Issue

[Richard Clayton]

I have configured 2 WAN Edge routers as a dual router site, each has a dedicated WAN circuit. R1 has public-internet and R2 has biz-internet. I have also configured a tloc extension between the two so that R1 can use R2 biz-internet transport and R2 can use R1 public-internet transport.

When I refresh the view in Manager not all of the control connections are 100% forming over the local colour and the tloc extension colour, some of the routers have 100% control connections over both and a couple don't. If I refresh again the ones that didn't have 100% control connections now have them and the ones that did now don't. This changes each time I refresh.
The fact that control connections form over both local and telc extension paths makes me think that the config is correct, but why would I be seeing this behaviour and how do I fix it?

The BFD sessions are also not 100% and keep changing on refresh.

Just for more info, I'm using Configuration Groups.

Thanks

[Richard Clayton]

I've attached a screenshot showing the output of the of the refreshes.

[Jeongjun Park · Accepted solution]

Hi, Richard.

As far as I know, The BFDs (include TLOC ext) dont up fully If TLOC ext configs are wrong.

Please refer to this picture, and modify the static routing, tloc ext configuration.

https://www.networkacademy.io/ccie-enterprise/sdwan/tloc-extension

Thank you.

Please remark this as a solution If this is helpful.

[Richard Clayton]

Hi Jeongjun

Thanks for taking the time to reply.

I worked out what the issue was, I had forgotten to bond the WAN interface to the TLOC extension interface on both routers. Once I fixed that each router was able to create control, IPSEC and BFD connections out of both the local WAN and TLOC extension interfaces.

Thanks

Rick

[Jeongjun Park]

Good to hear !

Hope you have a good day !