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Forum Discussion

fubarSUSHI's avatar
fubarSUSHI
Icon for Altocumulus rankAltocumulus
Feb 27, 2015

Load balancing two ISPs? With GTM or LTM?

Im assisting with an installation but Im trying to find a method to load balance two ISPs. We purchased a GTM license but everything looks like it should be done with an LTM that is on the outside p...
deployment
design
shaggy_121467's avatar
shaggy_121467
Icon for Cumulonimbus rankCumulonimbus
Feb 27, 2015

@Brian R. said it well - very similar to link controller (but hopefully easier/better because LC is like LTM+GTM lite)

 

also check out https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/ltm-implementations-11-1-0/2.html

 

Outbound ISP load-balancing uses LTM, inbound ISP load-balancing is DNS-based and uses GTM. Each public site that you want to load-balance between the ISPs will have a unique IP address in each ISPs public space, and the GTM will load balance by resolving the name to its address in either ISP space

 

fubarSUSHI's avatar
fubarSUSHI
Icon for Altocumulus rankAltocumulus
Feb 27, 2015
tyvm for your time. I havent read the article yet but I just wanted to ask a quick question... could I route traffic based upon type? In other words... web traffic goes isp1 while app traffic goes isp2?