03-07-2020 03:17 AM
Hi,
I have plugged 2 UTP 1Gb cable on 2 ports of a 3750 switch and 2 ports of a 2960 switch.
I am trying to trunk the 2 switches with a port-channel, but something seems off in my configs since the port-channel reports a speed of 1000Mb/s when I wass expecting 2000Mb/s
Config on Switch1
interface Port-channel1
switchport trunk encapsulation dot1q
switchport mode trunk
interface GigabitEthernet1/0/11
description -empty-
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
!
interface GigabitEthernet1/0/12
description Trunk port to 10.1.255.100 port 24
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
!
Some more info
Switch1#show interfaces port-channel 1
Port-channel1 is up, line protocol is up (connected)
Hardware is EtherChannel, address is d4a0.2ab7.b48c (bia d4a0.2ab7.b48c)
MTU 1500 bytes, BW 2000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 0/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, link type is auto, media type is unknown
input flow-control is off, output flow-control is unsupported
Members in this channel: Gi1/0/11 Gi1/0/12
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: 0/0 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
12227738 packets input, 2355872064 bytes, 0 no buffer
Received 115654 broadcasts (114816 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 114816 multicast, 0 pause input
0 input packets with dribble condition detected
30714069 packets output, 25032340084 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
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
Switch1#show etherchannel
Channel-group listing:
----------------------
Group: 1
----------
Group state = L2
Ports: 2 Maxports = 8
Port-channels: 1 Max Port-channels = 1
Protocol: -
Minimum Links: 0
Config on Switch2
interface Port-channel1
interface GigabitEthernet1/0/23
channel-group 1 mode on
!
interface GigabitEthernet1/0/24
description Trunk Port to Stack Master's port 12
channel-group 1 mode on
!
Some more info:
Switch2#show int port-channel 1
Port-channel1 is up, line protocol is up (connected)
Hardware is EtherChannel, address is 00cc.fc21.7e98 (bia 00cc.fc21.7e98)
MTU 1500 bytes, BW 2000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, link type is auto, media type is unknown
input flow-control is off, output flow-control is unsupported
Members in this channel: Gi1/0/23 Gi1/0/24
ARP type: ARPA, ARP Timeout 04:00:00
Last input 19:36:42, 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: 0/40 (size/max)
5 minute input rate 58000 bits/sec, 106 packets/sec
5 minute output rate 4000 bits/sec, 5 packets/sec
30728351 packets input, 25033314906 bytes, 0 no buffer
Received 7136969 broadcasts (626201 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 626201 multicast, 0 pause input
0 input packets with dribble condition detected
12226992 packets output, 2355786810 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 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
Switch2#show etherchannel
Channel-group listing:
----------------------
Group: 1
----------
Group state = L2
Ports: 2 Maxports = 8
Port-channels: 1 Max Port-channels = 1
Protocol: -
Minimum Links: 0
Can someone help me get it right?
Thank you
Solved! Go to Solution.
03-07-2020 07:51 AM
Hi,
The numbers are correct. Look at the bandwidth, which is 2Gig.
BW 2000000 Kbit,
HTH
03-07-2020 07:51 AM
Hi,
The numbers are correct. Look at the bandwidth, which is 2Gig.
BW 2000000 Kbit,
HTH
03-07-2020 12:57 PM
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