[c-nsp] %AMDP2_FE-3-UNDERFLO: FastEthernet1/0 transmit error

[Nimal David Sirimanne]

Hi guys,

Can anyone give me any insight into this problem? When i do a sh log on 
my 7206, is always see multiple entries for this error:

Dec  3 01:48:04.145: %AMDP2_FE-3-UNDERFLO: FastEthernet1/0 transmit error
Dec  3 01:53:24.238: %AMDP2_FE-3-UNDERFLO: FastEthernet1/0 transmit error
Dec  3 02:25:58.301: %AMDP2_FE-3-UNDERFLO: FastEthernet1/0 transmit error
Dec  3 02:52:48.477: %AMDP2_FE-3-UNDERFLO: FastEthernet1/0 transmit error


I have a 7206 running a interface with multiple subif (fa1/0) to a 3550 
running a trunk (giga0/9). We used to get this error before when we were 
using a 2950, before it got replaced by this 3550. I saw a previous 
thread about this, and the problem was because duplex configuration was 
inconsistent on the 2 connected interfaces, but that doesn't seem to be 
the case here?

7206:
interface FastEthernet1/0
 no ip address
 no ip mroute-cache
 duplex full
 no cdp enable
!
interface FastEthernet1/0.1
  encapsulation dot1Q 110
 ip address X.X.X.X 255.255.255.248
 ip access-group PERMIT_FREENET in
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 no ip mroute-cache
 no cdp enable
!
interface FastEthernet1/0.2
  encapsulation dot1Q 109
 ip address X.X.X.Y 255.255.255.252
 ip access-group ANTI_SPOOF_INGRESS in
 no ip unreachables
 no ip proxy-arp
 no ip mroute-cache
 no cdp enable
!        
interface FastEthernet1/0.3
  encapsulation dot1Q 111
 ip address X.X.Y.Y 255.255.255.192
  no ip unreachables
 no ip proxy-arp
  no ip mroute-cache
 no cdp enable
!        
interface FastEthernet1/0.4
  encapsulation dot1Q 113
 ip address X.X.X.Z 255.255.255.240
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 no ip mroute-cache
 no cdp enable
!        
interface FastEthernet1/0.5
  encapsulation dot1Q 112
 ip address X.X.W.W 255.255.255.240
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 no ip mroute-cache
 no cdp enable
!        
interface FastEthernet1/0.6
 encapsulation dot1Q 201
 ip address X.X.V.V 255.255.255.240
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 no ip mroute-cache
 no cdp enable

3550:
interface GigabitEthernet0/9
 description **** Trunk to 7206 ****
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,109-113,201
 switchport mode trunk
 duplex full

Thanks!

Nimal David Sirimanne