I have a 3750 switch that currently will only display this error:
%% Low on memory; try again later
The only warning/error that is on our logging server previous to this is a traceback error. Thier is no history of this on this stack, and if it was so low on memory I would have expected to see a %memalloc error before a full failure.
Any ideas? At the very least I'm trying to figure out if I have more going on here then simply memory overrun and needing a reboot.
The other switch will be fine but it will become the stackmaster and it will not fall back to the original switch by itself . If that is a concern make sure the switch priorities are set and just reload the whole stack . We have seen the low memory issue also on a 6 switch stack , we reloaded the whole stack . I think the stackmaster sometimes runs into issues because it has to handle the configuration and tracking of things like spanning tree and other functions for the whole stack . My take it is a bug and for some reason these eventually run into a memory leak situation. Cisco should look into this further but I can't say I have seen a bug for this and I have looked before . We run like 12.2.35SE .
this message should mean that unfortunately it is high time to reload this device.
I've seen this message on routers. On a switch like yours it should be the sign of a SW bug.
Hope to help