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June 20th, 2024 13:16
Port-Cannel troubleshooting commands debug
I am looking for in-depth commands for troubleshooting Port-Cannel.
The issue is that I have been tasked with making a L2 LAG to switches that are physically separated by 3,000 miles. I fully understand this is unheard of but this is my task.
To add to the fun the two links are with different providers and have different latency.
Surprise surprise I am unable to get both links in the LAG at the same time. This is what I expected but I want to know exactly why this is happening....PDU not arriving, packets out of order.......
What commands do you use to get the factual data to why?
< show lacp XXX counters >
Does no really help me that much
< show lacp XX >
Seems like this has a lot of good data but, its hard to read. For example, when comparing it to a good Port-Channel the "State" has a "H" indicating "H - OUT_OF_SYNC" but that PC is working and has been working for years.
and who is the "Actor" and who is the "Partner" ? is there a white paper explaining the command < show lacp XX >
< debug lacp pdu >
I can see that pdu's are being sent. I can also see the "State" is 3f. What are the states and their meanings?
< debug lacp events >
Did not have time to let this run. Is there a document that will guide me in the results once I can let this command run?
In the end I just need hard data pointing to exactly why this is not coming up.
Below is my config...it is the same on both sides:
interface Port-channel 1
no ip address
mtu 9216
switchport
no shutdown
interface TenGigabitEthernet 1/1
no ip address
!
port-channel-protocol LACP
port-channel 1 mode active
interface TenGigabitEthernet 1/2
no ip address
!
port-channel-protocol LACP
port-channel 1 mode active

