Cat 9300 & 9500 Port-channel not oming up

[kalen4101]

 Good day all,

  Having an issue with port-channel 

  My predecessor set up a few single port channel groups (don't ask me why?). They are auto on both sides and are currently working just fine

 I have a 2 port channel-group I'm trying to set up and one of the ports is active and carrying traffic.

 So I configure the port-channel on both switches, configure the shutdown port and add it to the channel group. I do a no shut on the port and the port-channel. Port-channel is down/down and port is down/down (suspended) Double checked the configs and the match.

 What am I missing?  

[Reza Sharifi]

Hi,

Can you post the configs from both switches? Also, can you post the output of "sh ether summ"?

HTH

[kalen4101]

interface GigabitEthernet1/1/3
description 9500
switchport trunk native vlan 101
switchport trunk allowed vlan 1,10,201,701,2010
switchport mode trunk
switchport nonegotiate
shutdown
channel-group 1 mode active
end

Switch#show run int po1
Building configuration...

Current configuration : 228 bytes
!
interface Port-channel1
description 9500
switchport trunk native vlan 101
switchport trunk allowed vlan 1,10,201,701,2010
switchport mode trunk
switchport nonegotiate
shutdown
storm-control broadcast level 50.00
end

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 f - failed to allocate aggregator

M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port

A - formed by Auto LAG

Number of channel-groups in use: 1
Number of aggregators: 1

Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
1 Po1(SD) LACP Gi1/1/3(D)

++++9500++++++

interface TenGigabitEthernet2/0/39
description 9300 1/1/3
switchport trunk native vlan 98
switchport trunk allowed vlan 1,201,701,2010
switchport mode trunk
switchport nonegotiate
shutdown
channel-group 10 mode active
end

switch#

interface Port-channel10
description 9300
switchport trunk native vlan 98
switchport trunk allowed vlan 1,10,701,2010
switchport mode trunk
switchport nonegotiate
shutdown
storm-control broadcast level 50.00
end

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 f - failed to allocate aggregator

M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port

A - formed by Auto LAG

Number of channel-groups in use: 15
Number of aggregators: 15

Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
10 Po10(SD) LACP Te2/0/39(D)

[Reza Sharifi]

Hi,

switchport trunk native vlan 101

switchport trunk native vlan 98

The native vlan needs to be the same for all switches. So, use 101 or 98 on all switches and not both.

Also, not that this should matter, but why are you using interface Port-channel1 for one switch and interface Port-channel10 on the other switch? Try using the same Po id on both sides of the Portchannel and test again.

HTH

[kalen4101]

 Actually both are on the same native vlan, that was an error on my part.

 I changed from po1 and added po10 so both port-channels on each switch is the same but it made no difference. For some reason it refuses to come up and the port stays up/down (suspended)

[Deepak Kumar]

Hi,

Why there is a "SHUTDOWN" command on both switches? What about the VLAN mismatch (native VLAN)?

[kalen4101]

 There is no "native Vlan mistmatch". As I said after he pointed it out, that was a mistake on my part. Native VLAN matches

 after going through the config's a 51st time I did notice VLANs allowed did not match. changed config so the do match and still no joy!?!?

OK, went through logs and found

%ETC-5-CANNOT_BUNDLE2: Gi1/1/3 is not compatible with Po10 and will be suspended (Broadcast suppression: Level of Gi1/1/3 is not configured. Level of Po10 is 50.00%, 50.00%.)

Now the only level I have is the storm-control broadcast level. But when I try to apply it to the gi1/1/3 I get the error

Command Rejected: Storm-control feature cannot be applied on a port part of a port-channel

[Reza Sharifi]

Can you remove the storm-control commands and test again.

interface GigabitEthernet1/1/3
description 9500
switchport trunk native vlan 101
switchport trunk allowed vlan 1,10,201,701,2010
switchport mode trunk
switchport nonegotiate
channel-group 1 mode active
end

Switch#show run int po1
Building configuration...

Current configuration : 228 bytes
!
interface Port-channel10
description 9500
switchport trunk native vlan 101
switchport trunk allowed vlan 1,10,201,701,2010
switchport mode trunk

HTH

[kalen4101]

 So Cisco information is wrong again. I followed it and put storm-control on the port-channel, that led to a (suspended) message as well as errors in the log.

 I took it off the port channel and it came up just fine!