GTM vs LTM

Difference between GTM and LTM

FUNCTION	GTM	LTM
Full Form	Global Traffic Balancer	Local Traffic Manager
Industry Standard name	Global Load Balancer	Server Load balancer
Name resolution	GTM performs name to IP resolution	Does not perform name to IP resolution
Scope	GTM Load balances requests between Data Centers	LTM is limited to single Data Center and Load balancer traffic between Servers within same Data Center.
Traffic Type	DNS traffic is sent via the requestor/client	Actual Data communication traffic and port number is sent by the client/requestor.
Duration of association	Once the GTM has provided name to IP resolution to client , GTM work is complete	LTM remains till the whole communication (starts when requests hits client IP with port number) between client and destination server is complete.
Proxy functionality	No	Yes
Technologies used	WIP , DNS ,resolver	SNAT, Proxy architecture, VIP, caching, persistence, compression.
Deployment	Generally over Cloud or DMZ/ Perimeter Zone in Data Center	Generally in DMZ Zone, Production Zone or Database Zone of Data Centers.
High availability options	Backup box may be placed at distance geo location for redundancy	Backup box needs to be placed in same Data Center and same Vlan.