Hi everyone,
I have a router ISR 4331 on which I have created a tunnel interface and loopback interface as a source interface of tunnel connected with my remote site. Recently I have started seeing packet discards on my tunnel interface. My MPLS provider is giving 75 MB link on both side of my offices. Kindly find below output results of tunnel interface if anything is missconfigured.
RT01#show interfaces Gi0/0/2.1201
GigabitEthernet0/0/2.1201 is up, line protocol is up
Hardware is ISR4331-3x1GE, address is
Description: *** PRI Link ***
Internet address is 172.25.25.2/30
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation 802.1Q Virtual LAN, Vlan ID 1201.
ARP type: ARPA, ARP Timeout 04:00:00
Keepalive not supported
Last clearing of "show interface" counters never
RT01#show interfaces tunnel 150
Tunnel150 is up, line protocol is up
Hardware is Tunnel
Internet address is 10.2.30.2/30
MTU 9976 bytes, BW 100 Kbit/sec, DLY 50000 usec,
reliability 255/255, txload 255/255, rxload 255/255
Encapsulation TUNNEL, loopback not set
Keepalive set (10 sec), retries 30
Tunnel linestate evaluation up
Tunnel source 1.1.1.1, destination 2.2.2.2
Tunnel protocol/transport GRE/IP
Key disabled, sequencing disabled
Checksumming of packets disabled
Tunnel TTL 255, Fast tunneling enabled
Tunnel transport MTU 1476 bytes
Tunnel transmit bandwidth 8000 (kbps)
Tunnel receive bandwidth 8000 (kbps)
Last input never, output never, output hang never
Last clearing of "show interface" counters 8w5d
Input queue: 0/375/0/0 (size/max/drops/flushes); Total output drops: 9252882
Queueing strategy: fifo
Output queue: 0/0 (size/max)
5 minute input rate 2013000 bits/sec, 375 packets/sec
5 minute output rate 2294000 bits/sec, 369 packets/sec
688153682 packets input, 487757675447 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
674136197 packets output, 569157823426 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
