Region : CzechRepublic

Model : TL-SG3210

Hardware Version : V2

Firmware Version : 1.9.8 Build 20140818 Rel.66877(s)

ISP :

Hi,
I´m using L2 managed switch SG3210 behind PON OLT. Switch is used to distribute internet VLAN and IPTV VLAN to end users. I have setup IGMP snooping for proper VLAN.

I had enabled FAST LEAVE option, but IPTV units still delete and create multicast groups. I do not remember right time intervals, but it was aprox. 5 minutes. Strange is, that this behavior starts after 20-40 hours uptime.

So i tried to disable FAST LEAVE. After doing this, IPTV units keeps their multicast groups and TV transmissions works correctly. But when uptime of switch reach 24+ hours, switch reach CPU RISING THRESHOLD warning in log. Log is shown below.

1	2015-02-23 22:20:42	CPU_LOAD	level_3		CPU RISING THRESHOLD: Total CPU Utilization is 100%.
2	2015-02-23 22:17:37	CPU_LOAD	level_3		CPU RISING THRESHOLD: Total CPU Utilization is 88%.
3	2015-02-23 21:22:57	CPU_LOAD	level_3		CPU RISING THRESHOLD: Total CPU Utilization is 83%.
4	2015-02-21 12:05:33	CPU_LOAD	level_3		CPU RISING THRESHOLD: Total CPU Utilization is 100%.
5	2015-02-21 12:02:28	CPU_LOAD	level_3		CPU RISING THRESHOLD: Total CPU Utilization is 88%.
6	2015-02-21 11:07:48	CPU_LOAD	level_3		CPU RISING THRESHOLD: Total CPU Utilization is 83%.
7	2015-02-19 01:50:18	CPU_LOAD	level_3		CPU RISING THRESHOLD: Total CPU Utilization is 100%.
8	2015-02-19 01:47:13	CPU_LOAD	level_3		CPU RISING THRESHOLD: Total CPU Utilization is 81%.
9	2015-02-19 00:52:38	CPU_LOAD	level_3		CPU RISING THRESHOLD: Total CPU Utilization is 84%.

What causes this problem? Is this important?