Today, one of our Cisco 3750 got unmanaged from NOC, we were able to ping the switch, also, traffic was flowing fine but not able to telnet or local login.
On trying to login through console following messages were coming:
%% Low on memory; try again later
%% Low on memory; try again later
%% Low on memory; try again later
%% Low on memory; try again later
%% Low on memory; try again later
%% Low on memory; try again later
004107: Oct 7 09:26:09.525: %SYS-2-MALLOCFAIL: Memory allocation of 4120 bytes failed from 0x9D2A08, alignment 0
Pool: Processor Free: 10613572 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool
-Process= "Spanning Tree", ipl= 0, pid= 197
-Traceback= D667B8 D66F04 1595DD4 15982F4 1598558 178821C 9D2A0C 86CCAC 14B336C 1490C1C 1490EE8 149109C 14918F8 1491C98 148D80C 14937A8
%% Low on memory; try again later
%% Low on memory; try again later
%% Low on memory; try again later
%% Low on memory; try again later
004108: Oct 7 09:26:51.443: %SYS-2-MALLOCFAIL: Memory allocation of 4120 bytes failed from 0x9D2A08, alignment 0
Pool: Processor Free: 10613592 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool
-Process= "Spanning Tree", ipl= 0, pid= 197
-Traceback= D667B8 D66F04 1595DD4 15982F4 1598558 178821C 9D2A0C 86CCAC 14B336C 1490C1C 1490EE8 149109C 14918F8 1491C98 148D80C 14937A8
%% Low on memory; try again later
We given power on reset, after which we were able to login switch again.
I wanted to know the actual reason behind it and if there is any other way to recover switch other than power reset.???
We are facing this issue every 2-3 days.
Thanks,
Nishant
