07-14-2016 11:43 AM - edited 03-12-2019 01:01 AM
Please help me to get the solution.
below are the router input.
IOS Image bootflash:/isr4300-
sh interfaces gigabitEthernet 0/0/1
GigabitEthernet0/0/1 is up, line protocol is up
Hardware is ISR4331-3x1GE, address is ecbd.1d48.8631 (bia ecbd.1d48.8631)
Internet address is 192.168.2.2/30
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 4/255, rxload 2/255
Encapsulation ARPA, loopback not set
Keepalive not supported
Full Duplex, 100Mbps, link type is force-up, media type is RJ45
output flow-control is on, input flow-control is on
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:17, output 00:00:58, output hang never
Last clearing of "show interface" counters 2d04h
Input queue: 0/375/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 1132000 bits/sec, 265 packets/sec
5 minute output rate 1830000 bits/sec, 319 packets/sec
19105808 packets input, 9026244955 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 watchdog, 3818 multicast, 0 pause input
22200372 packets output, 13011087602 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
417 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
sh ver
Cisco IOS XE Software, Version 03.13.02.S - Extended Support Release
Cisco IOS Software, ISR Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 15.4(3)S2, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2015 by Cisco Systems, Inc.
Regards
07-14-2016 02:05 PM
Is this link an 802.1q Trunk?
07-14-2016 02:58 PM
It's dot1Q
here is the configuration of switch & router.
Router:
interface GigabitEthernet0/0/0
no ip address
negotiation auto
interface GigabitEthernet0/0/0.20
description Data VLAN connected to switch
encapsulation dot1Q 10 native
ip address 192.168.12.1 255.255.255.0
ip directed-broadcast
ip pim sparse-dense-mode
no cdp enable
Switch:
interface GigabitEthernet1/0/46
description UPLINK TO ROUTER
switchport trunk native vlan 20
switchport mode trunk
speed auto
duplex auto
07-14-2016 03:01 PM
If the port is an 802.1q Trunk then "Unknown Protocol Drops" are always present.
07-14-2016 03:03 PM
is there solution to fix it.
07-14-2016 03:35 PM
It's not an issue to be worried about.
07-14-2016 03:38 PM
can I configure switchport nonegotiate on trunk port of switch?
will there be any issue by configuring this.
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