[c-nsp] Cisco 7301 limitation ?

[Olivier CALVANO]

Hi

i have a problems with a cisco 7301 IOS:

Cisco IOS Software, 7301 Software (C7301-ADVENTERPRISEK9-M), Version
12.2(33)SRD5, RELEASE SOFTWARE (fc2)

No special config on C7301, no qos, no access list, no filter ... only IP
Route



On this router, i have two ports used:
    GigabitEthernet0/0
    GigabitEthernet0/1

Port 0/0 it's a 1 Gbits link
Port 0/1 it's a 1 Gbits link but i two vlan each vlan is a fiber remote
link, one of 20Mbits and the second 500 Mbits


When i start a upload from a pc behind the 500 Mbits vlan link, no
problems, i have 500 Mbits and cpu is good:
CPU utilization for five seconds: 33%/22%



but when i download, i am limited to 266 Mbits and the CPU of the C7301 are
high:

CPU utilization for five seconds: 98%/43%


anyone know this problems ?

It's possible because the cisco don't know that the vlan is limited at 500
mbits and he want sent at 1 gbits ?

regards
Olivier