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Router Interface Statistics Help (Physical & Sub-Interfaces)

Hamidsattarrana
Beginner
Beginner

Hello

Hope you guys are well!

 

I need some help regarding interface statistics. Below are the interface statistics.

 

Core-Router#show interfaces gigabitEthernet 0/0
GigabitEthernet0/0 is up, line protocol is up
Hardware is BCM1125 Internal MAC, address is 68bd.abbd.d720 (bia 68bd.abbd.d720)
Description: WAN
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 2/255, rxload 3/255
Encapsulation 802.1Q Virtual LAN, Vlan ID 1., loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, media type is RJ45
output flow-control is XON, input flow-control is XON
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 1d19h
Input queue: 0/75/0/350 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 15593000 bits/sec, 2757 packets/sec
30 second output rate 8791000 bits/sec, 2352 packets/sec
210324652 packets input, 2803268500 bytes, 88 no buffer
Received 378640 broadcasts, 0 runts, 0 giants, 5 throttles
6 input errors, 0 CRC, 0 frame, 6 overrun, 0 ignored
0 watchdog, 595202 multicast, 0 pause input
0 input packets with dribble condition detected
123517844 packets output, 1758071145 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
5185 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

 

It says 6 input errors and 6 Overrun.

88 no buffer

 

And 1 more thing there are 4 ISPs configured on the same interface gig 0/0. How can I check the errors on specific Sub-Interface?

Router is 3845

 

The output of show interface gig 0/0.200 is below but it does not show any errors:

Core-Router#show int gig 0/0.200
GigabitEthernet0/0.200 is up, line protocol is up
Hardware is BCM1125 Internal MAC, address is 68bd.abbd.d720 (bia 68bd.abbd.d720)
Description: WAN-NEXLINK
Internet address is 102.59.56.85/29
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 4/255
Encapsulation 802.1Q Virtual LAN, Vlan ID 200.
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters never

 

2 Replies 2

Hello,

 

unfortunately, you cannot get the same statistics for logical/sub interfaces. I think XR show some more stats, but not in (XE) IOS.

Joseph W. Doherty
Hall of Fame
Hall of Fame

One would expect (or hope) physical interface errors only reported on the physical interface.  Plus, logically, a bit pointless to note such errors on ever subinterface (which might lead you to believe you actual errors time the number of subinterfaces errors - BTW, I recall seeing on some Cisco switch some physical errors "replicated" on every port being controlled by the same ASIC - clue this was the case, each port had exactly the same count for those errors).

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