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    layer 3 etherchannel

    tingtong

      hai

       

      when i configure  a layer 3 etherchannel  i am getting some error please helpme on this .layer 2 etherchannel is working fine .which ip want to give for port-channel interface .

       

      i am using 2 no of  3560  switches .

       

      Switch(config)#int po
      Switch(config)#int port-channel 1
      Switch(config-if)#sw
      Switch(config-if)#no sw

      %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel 1, changed state to down

      %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel 1, changed state to up
      Switch(config-if)#ip add 10.204.96.2 255.255.255.0
      % 10.204.96.0 overlaps with Vlan96
      Switch(config-if)#
      Switch#

        • 1. Re: layer 3 etherchannel
          Babatunde

          Without even looking at your attachments, from the error message you are getting you need to go take a look at the IP configuration /address you have on you SVI for vlan 96 (Interface Vlan96).  You are trying to configure an IP address on the same subnet twice in a device.  (you cannot configure the same IP/subnet on two interfaces in the same device.)

          • 2. Re: layer 3 etherchannel
            tingtong

            dear i  changed ip address some other also i am getting same error........

            • 3. Re: layer 3 etherchannel
              Babatunde

              What IP address did you change to? What interface where you configuring?

              • 4. Re: layer 3 etherchannel
                Conwyn

                Hi Ting

                 

                do a show ip int brief to see what IP ranges you are using. Then select something different for your Etherchannel.

                 

                Regards Conwyn

                • 5. Re: layer 3 etherchannel
                  Mr. Sharma.

                  Hi, Ting

                  I am agree with Babatunde   comments, Try the other ip add like (10.204.97.1  255.255.255.0) instead of 10.204.96.2 255.255.255.0.

                  Regd..

                  • 6. Re: layer 3 etherchannel
                    Conwyn

                    Hi Ting

                     

                    You only need 255.255.255.252 since it is point to point.

                     

                    Regards Conwyn

                    • 7. Re: layer 3 etherchannel
                      tingtong

                      ya i configured

                      sw#

                       

                      int port channel-group 1

                      ip add 10.204.86.2 255.255.255.252

                      channel-group 1 mode on

                       

                      Switch#ping 10.204.86.2

                      Type escape sequence to abort.
                      Sending 5, 100-byte ICMP Echos to 10.204.86.2, timeout is 2 seconds:
                      !!!!!
                      Success rate is 100 percent (5/5), round-trip min/avg/max = 0/9/16 ms

                       

                       

                      i can able to ping the this interface  from sw 1  .but i cant able to ping the sw2 .

                      sw 2 i configured for layer 2 etherchannel

                       

                      sw2#

                      int range fa 0/1-2

                      channel-group 1 mode on

                      • 8. Re: layer 3 etherchannel
                        Conwyn

                        Hi Ting

                         

                        Switch Number one

                         

                        int port channel-group 1

                        ip add 10.204.86.1 255.255.255.252

                        channel-group 1 mode on

                         

                        int range fa 0/1-2

                        channel-group 1 mode on

                         

                        Switch Number two

                         

                        int port channel-group 1

                        ip add 10.204.86.2 255.255.255.252

                        channel-group 1 mode on

                         

                        int range fa 0/1-2

                        channel-group 1 mode on

                         

                         

                        Switch Number one

                        ping 10.204.86.2

                        Switch Number two

                        ping 10.204.86.1

                         

                        Regards Conwyn

                        • 9. Re: layer 3 etherchannel
                          tingtong

                          ya  .now i can i able to ping  .the ip add 10.204.86.1 and 10.204.86.2 but from sw 1 i cant able to ping sw 2 .pls help Con...

                          • 10. Re: layer 3 etherchannel
                            Inder Vaid

                            Ting,

                             

                            Can you see other switch connected to that port ? Sh cdp neighbor will show if it is.

                             

                            HTH

                            • 11. Re: layer 3 etherchannel
                              tingtong

                              from sw 1 it showing   the sw 2

                               

                              Switch#sh cdp ne

                              Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge

                                                S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone

                              Device ID    Local Intrfce   Holdtme    Capability   Platform    Port ID

                              Switch       Por 1            156                    3560        Fas 0/1

                              Switch       Por 1            156                    3560        Fas 0/2

                              Switch       Por 1            156                    3560        Por 1

                              ---------------------------------------------------------------------------------------------------------

                              from sw 2 it showing the port channel ip add of another sw (10.204.86.1)

                               

                               

                              Switch#sh cdp  neighbors

                              Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge

                                                S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone

                              Device ID    Local Intrfce   Holdtme    Capability   Platform    Port ID

                              Switch       Por 1            161                    3560        Por 1

                              • 12. Re: layer 3 etherchannel
                                Conwyn

                                Hi Ting

                                 

                                Show cdp entry * Pro

                                 

                                Regard Conwyn

                                • 13. Re: layer 3 etherchannel
                                  tingtong

                                  sw 1#

                                  Switch#sh cdp entry * protocol

                                  Protocol information for Switch :
                                    IP Address: 10.204.96.3
                                  ---------------------------

                                  Protocol information for Switch :
                                    IP Address: 10.204.96.3
                                  ---------------------------

                                  Protocol information for Switch :
                                    IP Address: 10.204.86.2

                                   

                                  ----------------------------------------------------------------------------------

                                  sw 2

                                  Switch#sh cdp entry * pro
                                  Switch#sh cdp entry * protocol

                                  Protocol information for Switch :
                                    IP Address: 10.204.86.1

                                  • 14. Re: layer 3 etherchannel
                                    Conwyn

                                    Hi Ting

                                     

                                    From Switch 1 can you ping 10.204.86.2?

                                    From Switch 2 can you ping 10.204.86.1?

                                     

                                    Regards Conwyn

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