[c-nsp] 2960X SDM Template

[Antonio Soares]

Team,

 

I just realized that with only a few SVIs and one static route I got the
message bellow when using the SDM Template "lanbase-routing":

 

%PLATFORM_UCAST-4-PREFIX:  One or more, more specific prefixes could not be
programmed into TCAM and are being covered by a less specific prefix, and
the packets may be software forwarded

 

Looking at the SDM Table comparison on the link bellow, it seems I am
hitting the maximum value for the "number of indirect IPv4 routes":

 

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960x/software/15-
2_2_e/system_manage/configuration_guide/b_sm_1522e_2960x_cg/b_sm_152ex_2960-
x_cg_chapter_0100.html

 

So it seems the more appropriate SDM Template for my setup is the Template
"lanbase-default" instead of the "lanbase-routing". What I don't understand
is why the "lanbase-routing" has much less resources for routing purposes
than the "lanbase-default" template. They call it routing, right ?  But the
context sensitive help shows this:

 

2960x-lab(config)#sdm prefer ?

  default          Default bias

  lanbase-default  Enhanced support for both IPv4 and IPv6 Routing

  lanbase-routing  Supports both IPv4 and IPv6 Static Routing

 

2960x-lab(config)#

 

The "lanbase-default" is enhanced for routing ??? And the "lanbase-routing"
is not ???

 

What am I missing here ?

 

I tested the "lanbase-default" template and it works fine. No TCAM error
messages and routing works normally (between SVIs and using the static
route). I'm using 15.2(2)E3.

 

 

 

Thanks.

 

Regards,

 

Antonio Soares, CCIE #18473 (RS/SP/DC)
 <mailto:amsoares at netcabo.pt> amsoares at netcabo.pt

http://www.ccie18473.net <http://www.ccie18473.net/>