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Cisco Port-Channel on Cisco 3550 switch showing as down
I have a Cisco 3550 Switch I configured with an etherchannel because I have teamed NICs on one of my 2 of my servers. If I do a "show int port-channel1" it shows as down, and I don't know why. I provided some information below. Any assistance would be greatly appreciated. Thanks.
Switch_SW2#show etherchannel
Channel-group listing:
----------------------
Group: 1
----------
Group state = L2
Ports: 4 Maxports = 16
Port-channels: 1 Max Port-channels = 1
Protocol: LACP
Minimum Links: 0
Group: 2
----------
Group state = L2
Ports: 4 Maxports = 16
Port-channels: 1 Max Port-channels = 1
Protocol: LACP
Minimum Links: 0
Switch_SW2#show int port-channel1
Port-channel1 is down, line protocol is down (notconnect)
Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000)
Description: SQL-SERVER-TEAMED-NICS
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 0/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, 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 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 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
Switch_SW2#show int port-channel2
Port-channel2 is down, line protocol is down (notconnect)
Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000)
Description: SQL-SERVER-TEAMED-NICS
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 0/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, 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 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 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
Relevant configs
interface Port-channel1
description SQL-SERVER-TEAMED-NICS
switchport access vlan 40
switchport mode access
speed 100
duplex full
spanning-tree portfast
!
interface Port-channel2
description SQL-SERVER-TEAMED-NICS
switchport access vlan 40
switchport mode access
speed 100
duplex full
spanning-tree portfast
interface FastEthernet0/30
description NIC1
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 1 mode passive
!
interface FastEthernet0/31
description NIC2
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 1 mode passive
!
interface FastEthernet0/32
description NIC3
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 1 mode passive
!
interface FastEthernet0/33
description NIC4
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 1 mode passive
!
interface FastEthernet0/34
description NIC1
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 2 mode passive
!
interface FastEthernet0/35
description NIC2
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 2 mode passive
!
interface FastEthernet0/36
description NIC3
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 2 mode passive
!
interface FastEthernet0/37
description NIC4
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 2 mode passive
Switch_SW2#show etherchannel
Channel-group listing:
----------------------
Group: 1
----------
Group state = L2
Ports: 4 Maxports = 16
Port-channels: 1 Max Port-channels = 1
Protocol: LACP
Minimum Links: 0
Group: 2
----------
Group state = L2
Ports: 4 Maxports = 16
Port-channels: 1 Max Port-channels = 1
Protocol: LACP
Minimum Links: 0
Switch_SW2#show int port-channel1
Port-channel1 is down, line protocol is down (notconnect)
Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000)
Description: SQL-SERVER-TEAMED-NICS
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 0/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, 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 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 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
Switch_SW2#show int port-channel2
Port-channel2 is down, line protocol is down (notconnect)
Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000)
Description: SQL-SERVER-TEAMED-NICS
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 0/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, 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 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 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
Relevant configs
interface Port-channel1
description SQL-SERVER-TEAMED-NICS
switchport access vlan 40
switchport mode access
speed 100
duplex full
spanning-tree portfast
!
interface Port-channel2
description SQL-SERVER-TEAMED-NICS
switchport access vlan 40
switchport mode access
speed 100
duplex full
spanning-tree portfast
interface FastEthernet0/30
description NIC1
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 1 mode passive
!
interface FastEthernet0/31
description NIC2
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 1 mode passive
!
interface FastEthernet0/32
description NIC3
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 1 mode passive
!
interface FastEthernet0/33
description NIC4
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 1 mode passive
!
interface FastEthernet0/34
description NIC1
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 2 mode passive
!
interface FastEthernet0/35
description NIC2
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 2 mode passive
!
interface FastEthernet0/36
description NIC3
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 2 mode passive
!
interface FastEthernet0/37
description NIC4
switchport access vlan 40
switchport mode access
speed 100
duplex full
channel-group 2 mode passive
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ASKER
Do I have to have "switchport mode trunk" on my port?
ASKER
After making the changes you stated above the port-channel still didn't come up. I did a little more research and found a link that said to do a shut and a no shut on the port-channel. I did that and the port-channel came up. Thanks.
You don't need to have switchport mode trunk, it should be switchport mode access.
Portfast command should be on physical interfaces, not on the ether channel. As a precaution also add "spanning-tree bpdu guard enable" so when when it receives bpdu, it will go into err-disabled state.
Also, check your NIC teaming options.
Check out this Cisco article about ether channel and NIC teaming: http://www.cisco.com/en/US/tech/tk389/tk213/technologies_configuration_example09186a008089a821.shtml
Portfast command should be on physical interfaces, not on the ether channel. As a precaution also add "spanning-tree bpdu guard enable" so when when it receives bpdu, it will go into err-disabled state.
Also, check your NIC teaming options.
Check out this Cisco article about ether channel and NIC teaming: http://www.cisco.com/en/US/tech/tk389/tk213/technologies_configuration_example09186a008089a821.shtml
ASKER