How do you know if a interface is set to auto or a static setting?

sparkeyluvsparkeyluv Posts: 9Member ■□□□□□□□□□
I am trying to study and have a question regarding Full duplex vs auto vs speed settings of interfaces. My question is this; how do you know if a interface is set to auto or if its been statically set. My running config shows no clue and nor does my show interface below are the outputs of both. Is it assumed that the setting is auto unless specified?

in advance thanks!

Show ruconfig
!
interface Ethernet0
ip address 10.247.214.161 255.255.255.224
ip tcp adjust-mss 1452
hold-queue 100 out
!

Show interface Ethernet0

Ethernet0 is up, line protocol is up
Hardware is PQUICC Ethernet, address is 0009.437e.f807 (bia 0009.437e.f807)
Internet address is 10.247.214.161/27
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Half-duplex, 10Mb/s
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 never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/100 (size/max)
5 minute input rate 4000 bits/sec, 2 packets/sec
5 minute output rate 7000 bits/sec, 2 packets/sec
305066 packets input, 198118260 bytes, 0 no buffer
Received 3056 broadcasts, 0 runts, 0 giants, 2 throttles
4 input errors, 1 CRC, 1 frame, 0 overrun, 2 ignored
0 input packets with dribble condition detected
342985 packets output, 326590753 bytes, 1 underruns
1 output errors, 3382 collisions, 1 interface resets
0 babbles, 0 late collision, 4276 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out

Comments

  • davenulldavenull Posts: 173Member
    'show interfaces status' will give you the information you look for nicely formatted.

    btw, it does say 'Half-duplex, 10Mb/s' on one of the lines of your 2nd command

    edit: the 'sh int status' is for switches, not routers
  • KelkinKelkin Posts: 261Member ■■■□□□□□□□
    by default its auto/auto.. it will show up under the interface config if its statically set.. Spin up GNS3 and play around :)
  • sparkeyluvsparkeyluv Posts: 9Member ■□□□□□□□□□
    Thank you much!
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