[c-nsp] dCEF Problem

[Hyunseog Ryu]

That's because dCEF needs to build forwarding table in VIP2-50, and 
VIP2-50 doesn't have enough memory to have all routing table imported 
into Forwarding table.
If you really needs dCEF feature, you have to upgrade VIP2-50 memory.
I believe VIP2-50 can be upgraded to 128MB DRAM, and 8MB SRAM.

Hyun

Sridhar Ayengar wrote:
> I have a 7505 with RSP2 with a VIP2-50 containing a PA-FE-TX in slot 0, 
> and a PA-4E in slot 1.  If I activate dCEF and reload, I get errors 
> saying things like "Memory allocation of xxxx bytes failed" and "Cause: 
> No memory" and "No alternate pool".  After that, the VIP2-50 looks like 
> it crashes, and everything starts over again.  I was able to get the 
> router back up and running by deactivating dCEF while the VIP2-50 was 
> down, after which everything started running normally.
>
> Now, I am not running BGP or a firewall on this router, or anything else 
> that takes a lot of horsepower.  The only thing I'm running that takes 
> any power at all is a PPPoE connection on one of the ports of the PA-4E. 
>   Why am I running out of memory for dCEF?
>
> Also, I'm sorry I don't have the exact error message, as I was 
> concentrating on getting the router back up.  If it will help, I can 
> schedule some downtime and activate remote syslog.  Just let me know.
>
> My VIP2-50 has 32MB of DRAM and 4MB SRAM.  Does this need to be 
> upgraded?  The RSP2 has 128MB DRAM and is running IOS 12.4(1a).
>
> Thanks.
>
> Peace...  Sridhar
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