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Configuring LACP to work between Catalyst and 300 Series switches by CLI.docx

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Configure Link Aggregation wieh LACP enabled between Catalyst and 300 Serires switches. Version 2.0 correct some typos, and Add PAgP as Cisco proprietary statement.

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Beginner

Sx300/500 Inter-connect with Catalyst

LAG/LACP example

[Catalyst]

Interface rang f0/11 -12

Channel-protocol lacp

Channel-group 1 mode active

[Sx300/500]

SG300(config-if-range)#channel-group 1 mode

  on                   Add port without LACP

  auto                 Add port with LACP

SG300(config)#Port-Channel load-balance

  src-dst-mac-ip       Port channel load balancing is based on source and destination of MAC and IP addresses.

  src-dst-mac          Port channel load balancing is based on source and destination MAC address. [Default]

[Sx300/500]

SG300#sh cdp nei

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

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

                  M - Remotely-Managed Device, C - CAST Phone Port,

                  W - Two-Port MAC Relay

    Device ID       Local      Adv  Time To Capability   Platform     Port ID                    Interface  Ver. Live

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

       SW3             gi7      2     168     R S I    cisco WS-C3560-12P C-S       FastEthernet0/12

       SW3             gi8      2     168     R S I    cisco WS-C3560-12P C-S       FastEthernet0/11

SG300(config-if-range)#do sh int po 1

Load balancing: src-dst-mac.

Gathering information...

Channel  Ports

-------  -----

Po1      Active: gi7-8

SG300#show lacp Port-Channel 1

Port-Channel Po1

       Port Type Gigabit Ethernet

       Attached Lag id:

       Actor

               System Priority:32769

               MAC Address:    64:d8:14:5d:14:13

               Admin Key:      1000

               Oper Key:       1000

       Partner

               System Priority:32768

               MAC Address:    00:23:ac:c0:ac:00

               Oper Key:       1

SG300#show lacp gi 7

gi7 LACP parameters:

      Actor

              system priority:       32769

              system mac addr:       64:d8:14:5d:14:13

              port Admin key:        1000

              port Oper key:         1000

              port Oper number:      55

              port Admin priority:   1

              port Oper priority:    1

              port Admin timeout:    LONG

              port Oper timeout:     LONG

              LACP Activity:         ACTIVE

              Aggregation:           AGGREGATABLE

              synchronization:       TRUE

              collecting:            TRUE

              distributing:          TRUE

              expired:               FALSE

      Partner

              system priority:       32768

              system mac addr:       00:23:ac:c0:ac:00

              port Admin key:        0

              port Oper key:         1

              port Oper number:      269

              port Admin priority:   0

              port Oper priority:    32768

              port Oper timeout:     LONG

              LACP Activity:         ACTIVE

              Aggregation:           AGGREGATABLE

              synchronization:       TRUE

              collecting:            TRUE

              distributing:          TRUE

              expired:               FALSE

gi7 LACP statistics:

      LACP Pdus sent:                242

      LACP Pdus received:            217

gi7 LACP Protocol State:

      LACP State Machines:

              Receive FSM:           Current State

              Mux FSM:               Collecting Distributing State

              Periodic Tx FSM:       Slow Periodic State

      Control Variables:

              BEGIN:                 FALSE

              LACP_Enabled:          TRUE

              Ready_N:               FALSE

              Selected:              SELECTED

              Port_moved:            FALSE

              NNT:                   FALSE

              Port_enabled:          TRUE

      Timer counters:

              periodic tx timer:     26

              current while timer:   88

              wait while timer:      0

SG300#show lacp gi 8

gi8 LACP parameters:

      Actor

              system priority:       32769

              system mac addr:       64:d8:14:5d:14:13

              port Admin key:        1000

              port Oper key:         1000

              port Oper number:      56

              port Admin priority:   1

              port Oper priority:    1

              port Admin timeout:    LONG

              port Oper timeout:     LONG

              LACP Activity:         ACTIVE

              Aggregation:           AGGREGATABLE

              synchronization:       TRUE

              collecting:            TRUE

              distributing:          TRUE

              expired:               FALSE

      Partner

              system priority:       32768

              system mac addr:       00:23:ac:c0:ac:00

              port Admin key:        0

              port Oper key:         1

              port Oper number:      268

              port Admin priority:   0

              port Oper priority:    32768

              port Oper timeout:     LONG

              LACP Activity:         ACTIVE

              Aggregation:           AGGREGATABLE

              synchronization:       TRUE

              collecting:            TRUE

              distributing:          TRUE

              expired:               FALSE

gi8 LACP statistics:

      LACP Pdus sent:                204

      LACP Pdus received:            188

gi8 LACP Protocol State:

      LACP State Machines:

              Receive FSM:           Current State

              Mux FSM:               Collecting Distributing State

              Periodic Tx FSM:       Slow Periodic State

      Control Variables:

              BEGIN:                 FALSE

              LACP_Enabled:          TRUE

              Ready_N:               FALSE

              Selected:              SELECTED

              Port_moved:            FALSE

              NNT:                   FALSE

              Port_enabled:          TRUE

      Timer counters:

              periodic tx timer:     14

              current while timer:   75

              wait while timer:      0

[Catalyst]

SW3(config-if)#do sh ether 1 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      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

Number of channel-groups in use: 1

Number of aggregators:           1

Group  Port-channel  Protocol    Ports

------+-------------+-----------+-----------------------------------------------

1      Po1(SU)         LACP      Fa0/11(P)   Fa0/12(P)

SW3(config-if)#do sh ether 1 de

Group state = L2

Ports: 2   Maxports = 16

Port-channels: 1 Max Port-channels = 16

Protocol:   LACP

Minimum Links: 0

                Ports in the group:

                -------------------

Port: Fa0/11

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

Port state    = Up Mstr Assoc In-Bndl

Channel group = 1           Mode = Active          Gcchange = -

Port-channel  = Po1         GC   =   -             Pseudo port-channel = Po1

Port index    = 0           Load = 0x00            Protocol =   LACP

Flags:  S - Device is sending Slow LACPDUs   F - Device is sending fast LACPDUs.

        A - Device is in active mode.        P - Device is in passive mode.

Local information:

                            LACP port     Admin     Oper    Port        Port

Port      Flags   State     Priority      Key       Key     Number      State

Fa0/11    SA      bndl      32768         0x1       0x1     0x10C       0x3D

Partner's information:

                  LACP port                        Admin  Oper   Port    Port

Port      Flags   Priority  Dev ID          Age    key    Key    Number  State

Fa0/11    SA      1         64d8.145d.1413   9s    0x0    0x3E8  0x38    0x3D

Age of the port in the current state: 0d:00h:09m:07s

Port: Fa0/12

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

Port state    = Up Mstr Assoc In-Bndl

Channel group = 1           Mode = Active          Gcchange = -

Port-channel  = Po1         GC   =   -             Pseudo port-channel = Po1

Port index    = 0           Load = 0x00            Protocol =   LACP

Flags:  S - Device is sending Slow LACPDUs   F - Device is sending fast LACPDUs.

        A - Device is in active mode.        P - Device is in passive mode.

Local information:

                            LACP port     Admin     Oper    Port        Port

Port      Flags   State     Priority      Key       Key     Number      State

Fa0/12    SA      bndl      32768         0x1       0x1     0x10D       0x3D

Partner's information:

                  LACP port                        Admin  Oper   Port    Port

Port      Flags   Priority  Dev ID          Age    key    Key    Number  State

Fa0/12    SA      1         64d8.145d.1413   9s    0x0    0x3E8  0x37    0x3D

Age of the port in the current state: 0d:00h:09m:05s

                Port-channels in the group:

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

Port-channel: Po1    (Primary Aggregator)

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

Age of the Port-channel   = 0d:00h:09m:47s

Logical slot/port   = 2/1          Number of ports = 2

HotStandBy port = null

Port state          = Port-channel Ag-Inuse

Protocol            =   LACP

Port security       = Disabled

Ports in the Port-channel:

Index   Load   Port     EC state        No of bits

------+------+------+------------------+-----------

  0     00     Fa0/11   Active             0

  0     00     Fa0/12   Active             0

Time since last port bundled:    0d:00h:09m:05s    Fa0/12

Time since last port Un-bundled: 0d:00h:09m:47s    Fa0/12

SW3(config-if)#do sh lacp 1 nei

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 1 neighbors

Partner's information:

                  LACP port                        Admin  Oper   Port    Port

Port      Flags   Priority  Dev ID          Age    key    Key    Number  State

Fa0/11    SA      1         64d8.145d.1413  10s    0x0    0x3E8  0x38    0x3D 

Fa0/12    SA      1         64d8.145d.1413  10s    0x0    0x3E8  0x37    0x3D 

SW3(config-if)#do sh lacp 1 nei de

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 1 neighbors

Partner's information:

          Partner               Partner                     Partner

Port      System ID             Port Number     Age         Flags

Fa0/11    32769,64d8.145d.1413  0x38             15s        SA

          LACP Partner         Partner         Partner

          Port Priority        Oper Key        Port State

          1                    0x3E8           0x3D

          Port State Flags Decode:

          Activity:   Timeout:   Aggregation:   Synchronization:

          Active      Long       Yes            Yes

          Collecting:   Distributing:   Defaulted:   Expired:

          Yes           Yes             No           No

          Partner               Partner                     Partner

Port      System ID             Port Number     Age         Flags

Fa0/12    32769,64d8.145d.1413  0x37             15s        SA

          LACP Partner         Partner         Partner

          Port Priority        Oper Key        Port State

          1                    0x3E8           0x3D

          Port State Flags Decode:

          Activity:   Timeout:   Aggregation:   Synchronization:

          Active      Long       Yes            Yes

          Collecting:   Distributing:   Defaulted:   Expired:

          Yes           Yes             No           No

GREAT