We have a 4 member port channel setup. the port channel is up but two of the member interfaces are showing up/down. On the other side is not a Cisco switch but a PAlo Alto firewall and all interfaces on that end are configured correctly to be in the same aggregated link.
Here are some show outputs:
CH-CORE-6807-XL#sh etherchannel 20 sum
Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use N - not in use, no aggregation
f - failed to allocate aggregator
M - not in use, no aggregation due to minimum links not met
m - not in use, port not aggregated due to minimum links not met
u - unsuitable for bundling
d - default port
w - waiting to be aggregated
Number of channel-groups in use: 8
Number of aggregators: 8
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
20 Po20(SU) LACP Gi1/5/27(P) Gi1/5/28(P) Gi2/5/25(D)
Gi2/5/26(D)
CH-CORE-6807-XL#sh lacp 20 internal
Flags: S - Device is requesting Slow LACPDUs
F - Device is requesting Fast LACPDUs
A - Device is in Active mode P - Device is in Passive mode
Channel group 20
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Gi1/5/27 SA bndl 32768 0x14 0x14 0x151C 0x3D
Gi1/5/28 SA bndl 32768 0x14 0x14 0x151D 0x3D
Gi2/5/25 FA down 32768 0x14 0x14 0x251A 0x47
Gi2/5/26 FA down 32768 0x14 0x14 0x251B 0x47
CH-CORE-6807-XL#sh run int gi1/5/25
Building configuration...
Current configuration : 185 bytes
!
interface GigabitEthernet1/5/25
description CityPA1 Gi1 Po20
switchport
switchport mode trunk
switchport trunk allowed vlan 250,800,805,820,830
channel-group 20 mode active
end
CH-CORE-6807-XL#sh run int gi1/5/26
Building configuration...
Current configuration : 185 bytes
!
interface GigabitEthernet1/5/26
description CityPA1 Gi2 Po20
switchport
switchport mode trunk
switchport trunk allowed vlan 250,800,805,820,830
channel-group 20 mode active
