On Sun, 2010-12-12 at 14:13 -0500, Mark Price wrote:
> Yes, please see following. My understanding is that the routing
> protocol information from ospf is making the masks/values fill up
> faster than normal static routes. Let me know what you think:
I thought one FIB prefix was one FIB prefix, no matter where it came
from. I can't see why an OSPF originated prefix should take up more
masks or values.
Are you sure they take up more space than the same static routes?
>From a random IPv4 only, "desktop default" C3560 I have the following
utilisation:
somerouter#sh ip route summ
IP routing table name is Default-IP-Routing-Table(0)
IP routing table maximum-paths is 32
Route Source Networks Subnets Overhead Memory (bytes)
connected 0 5 444 760
static 0 0 0 0
ospf 1 2 324 25600 49552
Intra-area: 269 Inter-area: 47 External-1: 0 External-2: 10
NSSA External-1: 0 NSSA External-2: 0
internal 3 3516
Total 5 329 26044 53828
somerouter#sh plat tcam util
CAM Utilization for ASIC# 0 Max Used
Masks/Values Masks/values
Unicast mac addresses: 784/6272 36/195
IPv4 IGMP groups + multicast routes: 144/1152 6/26
IPv4 unicast directly-connected routes: 784/6272 36/195
IPv4 unicast indirectly-connected routes: 272/2176 59/394
IPv4 policy based routing aces: 0/0 0/0
IPv4 qos aces: 768/768 260/260
IPv4 security aces: 1024/1024 31/31
Does it change anything to reload the box?
--
Peter
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