SummitStack slot unexpectedly resets

[Robert_Zdziebło]

Hi all, I got one X460 (slot-1) and one X440 (slot-2) in a stack, connected using standard SummitStack cables in a ring topology. Prior to slot-1 unexpected reboot, I had couple of the following entries in a log: Slot-1: IPv4 multicast entry not added. Hardware Group Table full. Could this slot-1 reset be due to some wrong (default) multicast configuration ? Both switches have the same 16.1.1.4 EXOS image. Regards  Robert

[Robert_Zdziebło]

Thank you, Patrick Here you have a little longer output: 2015-09-11 05:56:10.22 Slot-2: Slot-2 FAILED (1) Dual Master 2015-09-11 05:56:09.66 Slot-2: Node State[5] = FAIL (Dual Master) 2015-09-11 05:56:07.99 Slot-2: pibConduitMasterRcvOneSlot(): failed, rc=-3, errno=0, slot=1 2015-09-11 05:55:56.51 Slot-2: Slot-1 FAILED (1) 2015-09-11 05:55:56.50 Slot-2: PRIMARY NODE (Slot-1) DOWN 2015-09-10 11:57:03.58 Slot-1: IPv4 multicast entry not added. Hardware Group Table full. 2015-09-10 09:56:16.94 Slot-1: IPv4 multicast entry not added. Hardware Group Table full. 2015-09-10 08:28:08.35 Slot-1: IPv4 multicast entry not added. Hardware Group Table full. 2015-09-10 07:25:33.96 Slot-1: IPv4 multicast entry not added. Hardware Group Table full. 2015-09-10 06:08:31.75 Slot-1: IPv4 multicast entry not added. Hardware Group Table full. 2015-09-09 13:49:40.67 Slot-1: Login failed for user root through ssh (10.1.103.101) 2015-09-09 09:59:57.42 Slot-1: IPv4 multicast entry not added. Hardware Group Table full. 2015-09-09 08:59:45.08 Slot-1: IPv4 multicast entry not added. Hardware Group Table full. 2015-09-09 07:59:03.23 Slot-1: IPv4 multicast entry not added. Hardware Group Table full. 2015-09-09 06:51:18.25 Slot-1: Login failed for user root through xml (10.1.103.101) I'll check the article you mentioned and the power conditions.

[Robert_Zdziebło]

Just wanted to add a newline and we have a very short reply  Delete those two posts above if you can 

[Patrick_Voss]

Hi Robert,

The unexpected reboot and the log you received are probably unrelated.

As far as the log message you received. The x440 switch was designed as mainly a edge switch so its hardware tables are much smaller than the x460. This limits the stack because they share resources. There are some steps that you can take to help minimize the entries in the tables:

https://gtacknowledge.extremenetworks.com/articles/How_To/Multicast-Entry-not-Added-Hardware-Table-F...

The unexpected reboot we would need to see the output before the unexpected reboot log. If there is nothing this typically means that the switch lost power so I would check the power source and the power cable. If you have a syslog server setup this might have more information than the switch.

Let me know if you have any questions.