new isp

[williamcs]

I have GTM and LC integrated and working fine. If user want to add new ISP2 link to LC and add it into wide ip abc.com in GTM, do I need to create new self ip and vlan in GTM?

gtm wideip a /Common/abc.com {
pools {
/Common/ISP1_POOL {
order 0
}

#new added
/Common/ISP2_POOL {
order 1
}
}

[Nikoolayy1]

This may help you:

https://techdocs.f5.com/en-us/bigip-15-1-0/big-ip-link-controller-implementations/configuring-link-c...

[williamcs]

Thank you for your reply. I have 2 seperate box of LC and GTM. I have added new vlan and self ip in LC. Do I need to add new vlan and self ip in GTM too before add the new ISP2 into wideip?

gtm wideip a /Common/abc.com {
pools {
/Common/ISP1_POOL {
order 0
}

#new added
/Common/ISP2_POOL {
order 1
}
}

[williamcs]

Any help is appreciate.

[Leslie_Hubertus]

Hey @williamcs , I see @Nikoolayy1  hasn't been able to come back to follow up on your reply here, so I've asked a colleague to take a look.

[Nikoolayy1]

Have you checked link auto discovery https://my.f5.com/manage/s/article/K13994 as you say that you have seperate LC and GTM devices,so the GTM can learn the LC link?

Maybe another person will provide a better answer as I am not great with F5 Links 🙂

[Nikoolayy1]

Also I found this interesting article https://my.f5.com/manage/s/article/K13827 , so if your DNS/GTM device does not have Virtual Servers (you do not have the LTM module) on it maybe except the DNS Listeners I can't see the benefit of creating self-ip so that it correctly matches the link. If you have the LTM module maybe then add self-ip or just add the correct link under the Virtual servers.

Also this are nice articles:

https://my.f5.com/manage/s/article/K6785

https://my.f5.com/manage/s/article/K6848

Maybe if @Leslie_Hubertus finds someone to that has better knowedge we can learn something as I also started getting interested in links 😊