Etherchannel configruation

[ssweehinlew]

The port link aggregation is not working between Cisco switch and Juniper switch. Below is the configuration. Anything not right? Please advise. Many thanks.

Cisco:

interface FastEthernet0/21
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode active
!
interface FastEthernet0/22
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode active

interface Port-channel1
 switchport trunk encapsulation dot1q
 switchport mode trunk

Juniper:

  ge-0/0/46 {
        enable;
        ether-options {
            802.3ad ae0;
        }
    }
    ge-0/0/47 {
        enable;
        ether-options {
            802.3ad ae0;
        }
    }

   ae0 {
        mtu 1500;
        aggregated-ether-options {
            lacp {
                passive;
                periodic fast;
            }
        }
        unit 0 {
            family ethernet-switching {
                port-mode trunk;
                vlan {
                    members all;
                }
            }
        }
    }

[devils_advocate]

How do you mean 'not working'?

Are the ports not coming up at all?

[ssweehinlew]

Yes. The port is not coming up at all. No light on the port.

[InayathUlla Sharieff]

Okay first thing first:-

1-does the link between the devices comes up without the other channel configuration?

If the answer is no, then I would first suggest to look the later issue the port light is not coming up means some issue with layer 1.

[ssweehinlew]

no issue on layer 1. The link can come up without etherchannel configuration.

[Madhukrishnan Gopinathan Nair]

Can you check these ports are indeed going to the same Juniper box. By mistake if any cabling error, the ports won't join Port-channel.

What does the log say on cisco when you do this?

Thanks,

Madhu

[ssweehinlew]

No finding from the logs even I turned on the "debug lacp all"

[Madhukrishnan Gopinathan Nair]

Did you check the cabling?

Also try only adding one port to the channel and see single port comes up in the channel.

[ssweehinlew]

I have done all the layer 1 checking like cabling, port and etc...

[Madhukrishnan Gopinathan Nair]

Check the below under cisco to see LACP packets are send or received

sh lacp counters

[Madhukrishnan Gopinathan Nair]

Also share me  the below

sh lacp internal detail

[ssweehinlew]

Hi,

Below is the output:

sh lacp internal detail 
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 4

Actor (internal) information:

          Actor                 Actor                       Actor
Port      System ID             Port Number     Age         Flags
Fa0/21    32768,001f.6ce6.0780  0x17            780s        SA

          LACP Actor           Actor           Actor
          Port Priority        Oper Key        Port State
          32768                0x4             0x45

          Port State Flags Decode:
          Activity:   Timeout:   Aggregation:   Synchronization:
          Active      Long       Yes            No 

          Collecting:   Distributing:   Defaulted:   Expired:
          No            No              Yes          No 

 --More--                   Actor                 Actor                       Actor
 --More--         Port      System ID             Port Number     Age         Flags
Fa0/22    32768,001f.6ce6.0780  0x18            781s        SA

          LACP Actor           Actor           Actor
          Port Priority        Oper Key        Port State
          32768                0x4             0x45

          Port State Flags Decode:
          Activity:   Timeout:   Aggregation:   Synchronization:
          Active      Long       Yes            No 

          Collecting:   Distributing:   Defaulted:   Expired:
          No            No              Yes          No 
Switch#sh lacp counter

Switch#

[Madhukrishnan Gopinathan Nair]

Can you please try

lacp rate fast

under these interfaces

Thanks,

Madhu

[ssweehinlew]

Just found out that the port speed need to be set to 100 mbps from juniper switch in order to make it up and running. Thank you for the help.

[devils_advocate]

Glad you got it sorted, more often than not it turns out to be something simple!