[c-nsp] ME3400

[Brandon Ewing]

On Wed, Mar 11, 2009 at 01:44:21PM +0300, Dmitry Valdov wrote:
> Hi!
>
> The device says 9K total (5K directly connected and  4K indirect)..
> ===
>
> #sh sdm pref
>  The current template is "default" template.
>  The selected template optimizes the resources in
>  the switch to support this level of features for
>  8 routed interfaces and 1024 VLANs.
>
>   number of unicast mac addresses:                  5K
>   number of IPv4 IGMP groups + multicast routes:    1K
>   number of IPv4 unicast routes:                    9K
>     number of directly-connected IPv4 hosts:        5K
>     number of indirect IPv4 routes:                 4K
>   number of IPv4 policy based routing aces:         0.5K
>   number of IPv4/MAC qos aces:                      0.5K
>   number of IPv4/MAC security aces:                 1K

If it's like a 3560's SDM, be careful:  A connected subnet is 4
"indirect IPv4 routes" -- it stores a CEF receive entry for the network
address, broadcast address, assigned IP, and then the CEF attach for the 
actual netblock.

And even though "directly-connected IPv4 hosts" is listed under the "unicast
routes" prefix, it isn't counting connected networks.  Each connected subnet is
a glean in the "directly-attached" section, and each IP -> ARP address is an
adjacency in the "directly-attached" section, so it's really more a
limitation on the amount of ARP entries the switch can store.

-- 
Brandon Ewing                                        (nicotine at warningg.com)
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