01-05-2009 12:38 AM - edited 03-06-2019 03:14 AM
3750 runs low memory too often. The current memory is 128MB. Switch almost fully populated with ip phones/PCs. Is this an IOS bug? Running IOS is C3750-IPSERVICES-M), Version 12.2(25)SEE3
01-05-2009 01:44 AM
Hello Keith,
use sh proc mem to see what processes are using the memory.
Have you got any routing protocol running on it ?
Security measures like Dynamic ARP inspection, DHCP snooping and so on ?
802.1X ?
If the switch is used as a simple L2 switch with no additional features it should be fine and quiet about memory.
If this is the case I would think of an IOS upgrade to 12.2(46)SE or 12.2(44)SE.
Hope to help
Giuseppe
01-05-2009 01:56 AM
Giuseppe,
We're using the switch as L3 and running the following on the:
OSPF
802.1x
AAA - Radius/Tacacs
L3 Portchannels
ACLs
MQC
And that's pretty much what we running on the box.
Perhaps i should ugrade to later IOS.
01-05-2009 02:01 AM
Hello Keith,
how many OSPF routes are in the db ?
use
sh ip ospf summary
if in the order of thousands you should think to put it in an OSPF stub area but you likely have already it in a stub area.
if you like you can post the sh proc mem to see what are the processes that uses more memory.
Copy it to a text file with .csv extension import it in a spreadsheet and order based on memory usage
(I don't rembember is a sh proc mem sorted option exists)
Hope to help
Giuseppe
01-05-2009 02:50 AM
Giuseppe,
My area is stub and I have less than 100 routes in the db. See the top memory users on the switch below,
HRPC qos request
HQM Stack Proces
RedEarth Tx Mana
Hulc LED Process
*Init*
SNMP ENGINE
And just for interest sake , there is no command sh ip ospf summary, but sh ip ospf summary-address.
01-05-2009 03:03 AM
Hello Keith,
sorry for the mistake
the right command should be
sh ip ospf database summary
However, OSPF is not an issue in your scenario.
I would go for an IOS upgrade
Hope to help
Giuseppe
01-05-2009 03:12 AM
Will do... Thanks for you time and efforts.
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: