[c-nsp] issue on old but running device

[james list]

Dear expert
I'm trying to get any useful insight and I can also understand not polite
comments...

We've a customer which is experiencing multicast gaps on feed A and we've
identified an old C3925-SPE200 in a remote location (hence difficult to be
replaced in a manner) which is experiencing input errors/overrun also on
low bandwidth and packet rate.
The customer has the same kind of device in another remote location
receiving the same multicast feed (feed B) without issues.
I think these gaps are due to packet dropped ... customer has also tried to
move interface from g0/1 to g0/2 but no improvement has obtained.

Any idea what could be the reason ?

Thanks in advance
James

xxx>sh inventory
NAME: "CISCO3925-CHASSIS", DESCR: "CISCO3925-CHASSIS"
PID: CISCO3925-CHASSIS , VID: V02, SN: FCZxxx

NAME: "Cisco Services Performance Engine 200 for Cisco 3900 ISR on Slot 0",
DESCR: "Cisco Services Performance Engine 200 for Cisco 3900 ISR"
PID: C3900-SPE200/K9   , VID: V04 , SN: FOC160320B7xxx

NAME: "C3900 AC Power Supply 1", DESCR: "C3900 AC Power Supply 1"
PID: PWR-3900-AC       , VID: V03, SN: SNIxxx

NAME: "C3900 AC Power Supply 2", DESCR: "C3900 AC Power Supply 2"
PID: PWR-3900-AC       , VID: V03 , SN: QCSxxx


xxx>sh int g0/2
GigabitEthernet0/2 is up, line protocol is up
  Hardware is iGbE, address is 442b.0316.9302 (bia 442b.0316.9302)
  Description: To Market
  MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 2/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  1., loopback not set
  Keepalive set (10 sec)
  Full Duplex, 1Gbps, media type is RJ45
  output flow-control is unsupported, input flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 01:18:46
  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  30 second input rate 9004000 bits/sec, 2628 packets/sec
  30 second output rate 9000 bits/sec, 7 packets/sec
     7936911 packets input, 4224448667 bytes, 0 no buffer
     Received 7914597 broadcasts (7218973 IP multicasts)
     0 runts, 0 giants, 0 throttles
     56932 input errors, 0 CRC, 0 frame, 56932 overrun, 0 ignored
     0 watchdog, 7914597 multicast, 0 pause input
     30904 packets output, 2951099 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     158 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out


interface GigabitEthernet0/2
 description To Market
 no ip address
 load-interval 30
 duplex full
 speed 1000
 hold-queue 2000 in
!
interface GigabitEthernet0/2.90
 description VLAN multicast
 encapsulation dot1Q 90
 ip address xx.xx.221.1 255.255.255.0
 ip pim query-interval 5
 ip pim bsr-border
 ip pim dense-mode proxy-register list xx
 ip multicast boundary xx
 ip nat outside
 ip virtual-reassembly in
!
interface GigabitEthernet0/2.1683
 description To market flex vpn
 encapsulation dot1Q 1683
 ip address 10.xx.xx.85 255.255.255.252
 ip access-group CRYPTO-xxx