Process hl3mm

[tonyp8581]

Hi,

I have a 3560 running version 15.0(2) SE5 that's showing high utilization.  

Here's a sample from command "show proc cpu sor'

PU utilization for five seconds: 83%/2%; one minute: 80%; five minutes: 80%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
175 2512583491 270339457 9294 53.03% 48.92% 49.38% 0 hl3mm
124 3499920706 1193152191 2933 9.89% 9.67% 9.84% 0 hpm main process
238 1381979870 1243049615 1111 3.24% 2.61% 2.54% 0 Spanning Tree
127 537508726 51630211 10410 1.29% 1.09% 1.09% 0 hpm counter proc
222 667858622 1856009683 359 0.97% 1.09% 1.15% 0 IP Input
413 332616539 1224618873 271 0.81% 0.95% 0.90% 0 PIM Process

I noticed process hl3mm is pretty high.  Does anybody have a clue of what this process is about.  Not much documentation

out there.

Thanks !!

Tony

[Leo Laohoo]

Unless there is an urgent requirement for a feature found only in 15.X, use 12.2(55)SE-train for better stability.  The latest version (not sure if this is the final version) is 12.2(55)SE10.

[tonyp8581]

HI Leo,

Thanks for your response.  I'm running this version on 100+ 3560 with no glitch.

Obviously, if I need to upgrade, I will eventually, but do you know what the process hl3mm is used for ?

Tony

[Leo Laohoo · Accepted solution]

I'm running this version on 100+ 3560 with no glitch.

Upgrading is no problem.  Every 6 months (or so), I regularly upgrade >300 switches of different models and it takes about a week to finish the upgrade.  All using CLI and no automation required.  

but do you know what the process hl3mm is used for

Multi-cast routing.

[tonyp8581]

ok, thanks  Leo !