05-06-2011 12:49 PM
So we had a power outage today in are main data center. And when we where bringing everthing back up I hoped on to the console one of our routers and noticed a strange error message.
Warning: pp_add_ip_host_to_hw() Direct 192.168.31.100/32 return 28UT_OF_CPU_MEM
Warning: pp_add_ip_host_to_hw() Direct 192.168.28.10/32 return 28UT_OF_CPU_MEM
This message seems to pick a ransdom address. I cant seem to find a pattern. I also cant tell what its trying to warn me about
Total DRAM: 134217728 bytes
Dynamic memory: 113246208 bytes total, 41927784 bytes free, 62% used
I Just kind of want to know what this message means
05-06-2011 02:29 PM
pp_add_ip_host_to_hw() Direct 192.168.31.100/32 return 28UT_OF_CPU_MEM
pp is the packet processor - so just guess is you are out of address space on the line card. However you should be looked at by the TAC.
Highly suggest you log a TAC call and get it looked at.
05-31-2011 10:28 AM
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Global Community Moderator
08-22-2011 02:31 PM
It looks like we are running out of hardware resources(Tcam)
The TCAM is where your layer 3 forwarding entries get programmed into hardware. It takes a certain amount of time for the unused entries to age out. Once this has happened and the number of entries drops below the maximum value (256 in this case), you will no longer see the error message. The number of entries is dependent upon the number of hosts attached to your device and the number of local ip subnets configured. I would recommend increasing the maximum Tcam value to 1020:
To increase the Tcam issue the command listed below, write to memory and reload.
(config)#system-max hw-ip-route-tcam 1020
Let me know if this resolves the issue.