Wired

Hello Airheads,

This is my first post to the site, sorry if there are templates I should be using when posting a issue/question.

We have an issue where we swapped out a 2530 ArubaOS switch with a 6100 24G switch to accommodate for more ports. This switch is inside of a boiler room and it connects to some HVAC equipment (Trane Tracer Summit BCU) that allows for remote controls over the HVAC systems at this school. There are 2 of these systems there that connect to the new switch. They were there before the new switch was installed and was working without any issues.

Currently working with TAC but with no resolution and was told of possible incompatibility. When pinging these 2 devices that are setup as static, we have very high latency, sometimes there are points where the pings will be normal and consistent. Pings will show packet loss, but if I do a "sh int 1/1/17" it displays 0 dropped packets, TAC suggested that they were not being dropped, and that it was just very high latency. The ports are auto-negotiating as 100 half-duplex and thats how they were setup on the old switch.

The switch at times will show 100 or 80% or more CPU utilization in CLI and on the web GUI. TAC saw that the switch was trying to reach Central, but we do not have Central and suggest we disable this, which I have, I have also updated to the recommended version from TAC of 10.10.1040. I have tried just manually setting up the 100 - Half along with other configuration just to see if it would make a difference. I have setup QOS on these ports but it has not changed anything in regards to the high latency.

These pings are from the switch to the 2 devices are connected to, not across multiple switches.

I hope others have ran into this issue and know of a fix, we are upgrading multiple schools in a week to CX switches and we would not like to run into this issue. We also have the same issue with our Valcom Paging equipment with exact same issues on a CX switch, but connect to an old Aruba-OS switch and have no issues with same settings.

Thanks for your time.

How high is 'high' for your latency?
How do you determine that high latency?
You could ask TAC to escalate your case if there does not come a satisfactorily answer. It would not be expected that latancy goes up significantly if you move from a 2530 to CX6100.

Hello Airheads,

This is my first post to the site, sorry if there are templates I should be using when posting a issue/question.

We have an issue where we swapped out a 2530 ArubaOS switch with a 6100 24G switch to accommodate for more ports. This switch is inside of a boiler room and it connects to some HVAC equipment (Trane Tracer Summit BCU) that allows for remote controls over the HVAC systems at this school. There are 2 of these systems there that connect to the new switch. They were there before the new switch was installed and was working without any issues.

Currently working with TAC but with no resolution and was told of possible incompatibility. When pinging these 2 devices that are setup as static, we have very high latency, sometimes there are points where the pings will be normal and consistent. Pings will show packet loss, but if I do a "sh int 1/1/17" it displays 0 dropped packets, TAC suggested that they were not being dropped, and that it was just very high latency. The ports are auto-negotiating as 100 half-duplex and thats how they were setup on the old switch.

The switch at times will show 100 or 80% or more CPU utilization in CLI and on the web GUI. TAC saw that the switch was trying to reach Central, but we do not have Central and suggest we disable this, which I have, I have also updated to the recommended version from TAC of 10.10.1040. I have tried just manually setting up the 100 - Half along with other configuration just to see if it would make a difference. I have setup QOS on these ports but it has not changed anything in regards to the high latency.

These pings are from the switch to the 2 devices are connected to, not across multiple switches.

I hope others have ran into this issue and know of a fix, we are upgrading multiple schools in a week to CX switches and we would not like to run into this issue. We also have the same issue with our Valcom Paging equipment with exact same issues on a CX switch, but connect to an old Aruba-OS switch and have no issues with same settings.

Thanks for your time.