Monitoring The Interface Status; Troubleshooting - MikroTik RouterOS v2.9 Reference Manual

Flags: X - disabled, D - dynamic, R - running
# NAME
0 R ether1
[admin@MikroTik] > interface ethernet
[admin@MikroTik] interface ethernet> print
Flags: X - disabled, R - running
# NAME
0 R ether1
[admin@MikroTik] interface ethernet> print detail
Flags: X - disabled, R - running
0 R name="ether1" mtu=1500 mac-address=00:0C:42:03:00:F2 arp=enabled
disable-running-check=yes auto-negotiation=yes full-duplex=yes
cable-settings=default speed=100Mbps
[admin@MikroTik] interface ethernet>

Monitoring the Interface Status

Command name: /interface ethernet monitor
Property Description
status ( link-ok | no-link | unknown ) - status of the interface, one of the:
• link-ok - the card has connected to the network
• no-link - the card has not connected to the network
• unknown - the connection is not recognized
rate ( 10 Mbps | 100 Mbps | 1 Gbps ) - the actual data rate of the connection
auto-negotiation ( done | incomplete ) - fast link pulses (FLP) to the adjacent link station to
negotiate the SPEED and MODE of the link
• done - negotiation done
• incomplete - negotiation failed
full-duplex ( yes | no ) - whether transmission of data occurs in two directions simultaneously
Notes
See the IP Addresses and ARP
the interfaces.
Example
[admin@MikroTik] interface ethernet> monitor ether1,ether2
status: link-ok link-ok
auto-negotiation: done
rate: 100Mbps 100Mbps
full-duplex: yes

Troubleshooting

Description
• Interface monitor shows wrong information
In some very rare cases it is possible that the device driver does not show correct information,
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TYPE
ether
MTU
1500
section of the manual for information how to add IP addresses to
done
yes
RX-RATE TX-RATE
0 0
MAC-ADDRESS
00:0C:42:03:00:F2 enabled
MTU
1500
ARP