UNSOLVED
N1148P-ON issues / questions
Hi,
We've just deployed 2 stacks of Dell N1148P/T switches last night and ran into a couple of issues/questions:
- When I 'show process cpu', it shows CPU utilization to be close to 100%, with the process Sim_Keep_Alive taking up ~70%. I'm pretty confident that this is intended, but it's kinda misleading that the total CPU utilization is shown as 100%.. Is there a reason for this process?
- Is there any way to show how long a port has been active? In Cisco IOS I can do 'show interfaces to see how long it's been since the last input/output - is there any way to do this on Dell switches?
- Last, but not least - on the last stack, we have an issue where some PoE ports continuously have an orange LED lid (even if we unplug the cable). The ports doesn't supply PoE and don't seem to work.. I have done the following trying to get it to work:
Set static port speed to the phones (same speed at the phone NIC).
Reverted firmware back to 6.4.1.4 (what the switch was delivered with). - Currently running 6.4.2.3 - Same issue.
Rebooted the switch (obviously).
Set Power inline priority to high on the ports (switch overall consumed power is 55W, so not really an issue).
Shutdown the port (the LED turns off, but light up again as soon as 'shutdown' is removed).
Moved the device to another port without this issue (PoE works fine).
Does anyone have any suggestions? I'm convinced it's a faulty switch, but hope someone has an idea :)
The stack with the faulty ports consists of 1 N1148P-ON & 1 N1148T-ON switch.
Thanks in advance.
Thanks for your response :)
Keep alive isn't enabled.
#show keepalive
Keepalive Service.............................. Disabled
Transmit Interval.............................. 10
Retry Count.................................... 3There aren't any entries of "keepalive" in running-config either.
The stack isn't configured for MLAG, I've configured the stack with the following method:
#configure
(config)# stack
(config-stack)# stack-port tengigabitethernet 1/0/25 stack
It doesn't seem like the switch CPU is overloaded, as I can easily manage the switch with both ssh / https and it isn't slow in any way. The CPU process "sim_Keep_Alive" is only in the process list on stacked switches. We've tried booting a standalone switch and the process doesn't appear.
We have 3 of these stacks and the process appears on all of them. They do function perfectly, though. (apart from stack view not working and this mysterious process being shown as taking up 70% of the CPU usage).
Thanks for clearing up my question about interface timers, no need to keep looking for the right command then :)
The new update was released: http://www.dell.com/support/home/us/en/19/drivers/driversdetails?driverId=T40NX
We already tested and this issue seems to have been solved.
Fixes:
CS4700527/FIELD-2817-High CPU utilization of "SIM_Keep_alive" task
CS4738952/FIELD-2828-Missing snmp-server IP address entry in running-config.
CS4816982/FIELD-2850-Switch-port is reporting exaggerated MAC learned values when port security is applied.
CS4652919/FIELD-2803-Ping traffic drops and latency, 8 out of 13 switches having the same problem.
moxom
21 Posts
4994
0
Posted January 30th, 2018 01:00
Hi, thanks your reply - I've messaged you privately.
In addition to the previous questions, I'd like to report at bug on the HTML site. When I choose "Stack View", nothing is showing. On the N2048's I get a Graphic View on the entire stack, which is nice for some purposes.
Hope you can forward the report to the appropriate team :)