LLT over or UDP or Ethernet
- 11 years ago
Symantec recommends that you configure heartbeat links that use LLT over Ethernet, unless hardware requirements force you to use LLT over UDP. If you want to configure LLT over UDP, make sure you meet the prerequisites.
UDP makes LLT packets routable and thus able to span longer distances more economically.
Reder to admin guide for building the understanding
https://sort.symantec.com/public/documents/sfha/6.0/linux/productguides/html/vcs_install/ch08s05.htm
G
- 11 years ago
Also to note, The LLT-over-UDP configuration works over the IP layer, and is therefore a little slower than the LLT-over-Ethernet configuration
G
- 11 years ago
Thats correct.
- 11 years ago
"public network" means it is a network used by other things (i.e it has IP addresses assigned) as oppose to a private network which is private just for LLT.
A low-pri heartbeat on a "public network" can still use LLT over Ethernet (so LLT doesn't use the IPs on the interfaces) and this is the norm.
You cannot use a mix of LLT over ethernet and UDP - you must use one or the other for all links (including low-pri)
Mike