07-28-2009 09:03 AM - edited 03-06-2019 06:59 AM
Hello,
I have 2 interfaces setup as a port channel.
The 1st int is showing up/up
The 2nd is showing up/down
The port channel is showing up/up, but with only one interface as member of the channel.
Why is the the 2nd int up/down.
Please help.
interface GigabitEthernet1/5
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 601
switchport trunk allowed vlan none
switchport mode trunk
no ip address
no snmp trap link-status
channel-group 3 mode desirable non-silent
!
interface GigabitEthernet4/15
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 601
switchport trunk allowed vlan none
switchport mode trunk
no ip address
no snmp trap link-status
channel-group 3 mode desirable non-silent
!
rp01#sh int g1/5
GigabitEthernet1/5 is up, line protocol is up (connected)
!
rp01#sh int g4/15
GigabitEthernet4/15 is up, line protocol is down (notconnect)
!
rp01#sh int po3
Port-channel3 is up, line protocol is up (connected)
Hardware is EtherChannel, address is 00d0.c0d6.4fd2 (bia 00d0.c0d6.4fd2)
MTU 1500 bytes, BW 1000000 Kbit, 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
input flow-control is off, output flow-control is off
Members in this channel: Gi1/5
07-28-2009 09:10 AM
Please paste a:
- sh etherchannel summary
- sh mod
do you see any error message in the logs regarding g4/15 ?
If you take g4/15 out of the channel would it come up/up?
07-30-2009 11:58 AM
How does it look on the switch at the other end of the channel?
As far as I understadn the output, you do not receive data from the equipment connected to gig4/15, so you might want to check that one.
HTH
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