diagnose sys mcast-session/session6 list (IPv4 and IPv6 multicast sessions)

diagnose sys mcast-session/session6 list (IPv4 and IPv6 multicast sessions)

This command lists all IPv4 or IPv6 multicast sessions. If a multicast session can be offloaded, the output includes the offloadable tag. If the multicast path can be offloaded one of the paths in the command output is tagged as offloaded.

The only way to determine the number of offloaded multicast sessions is to use the diagnose sys mcast- session/session6 list command and count the number of sessions with the offload tag.

diagnose sys mcast-session list

session info: id=3 vf=0 proto=17>

used=2 path=11 duration=1 expire=178 indev=6 pkts=2 state:2cpu offloadable

npu-info in-pid=0 vifid=0 in-vtag=0 npuid=0 queue=0 tae=0


path: 2cpu policy=1, outdev=2 out-vtag=0

path: 2cpu policy=1, outdev=3 out-vtag=0

path: offloaded policy=1, outdev=7 out-vtag=0

path: policy=1, outdev=8


path: policy=1, outdev=9 out-vtag=0

path: policy=1, outdev=10 out-vtag=0

path: policy=1, outdev=11 out-vtag=0

path: policy=1, outdev=12 out-vtag=0

path: policy=1, outdev=13 out-vtag=0

path: 2cpu policy=1, outdev=64 out-vtag=0

path: 2cpu policy=1, outdev=68 out-vtag=0


Having trouble configuring your Fortinet hardware or have some questions you need answered? Check Out The Fortinet Guru Youtube Channel! Want someone else to deal with it for you? Get some consulting from Fortinet GURU!

This entry was posted in FortiOS 5.4 Handbook and tagged on by .

About Mike

Michael Pruett, CISSP has a wide range of cyber-security and network engineering expertise. The plethora of vendors that resell hardware but have zero engineering knowledge resulting in the wrong hardware or configuration being deployed is a major pet peeve of Michael's. This site was started in an effort to spread information while providing the option of quality consulting services at a much lower price than Fortinet Professional Services. Owns PacketLlama.Com (Fortinet Hardware Sales) and Office Of The CISO, LLC (Cybersecurity consulting firm).

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.