Ring topology stack mode doesn't work between 3 CE6810 switches

Latest reply: Apr 20, 2018 19:50:44 667 1 1 0

Issue Description:

Ring topology stack mode doesn't work between 3 CE6810 switches

Alarm Information:
 HUAWEI> system-view
[~HUAWEI] sysname SwitchA
[*HUAWEI] commit
[~SwitchA] stack
 [~SwitchA-stack] stack member 1 priority 150
 [*SwitchA-stack] stack member 1 domain 10
 [*SwitchA-stack] quit
[*SwitchA] commit

 
 <HUAWEI> system-view
 [~HUAWEI] sysname SwitchB
 [*HUAWEI] commit
 [~SwitchB] stack
 [~SwitchB-stack] stack member 1 priority 120
 [*SwitchB-stack] stack member 1 domain 10
 [*SwitchB-stack] stack member 1 renumber 2 inherit-config
 Warning: The stack configuration of member ID 1 will be inherited to member ID 2 after the device resets. Continue? [Y/N]: y
 [*SwitchB-stack] quit
[*SwitchB] commit

 <HUAWEI> system-view
 [~HUAWEI] sysname SwitchC
 [*HUAWEI] commit
 [~SwitchC] stack
 [~SwitchC-stack] stack member 1 priority 90
 [*SwitchC-stack] stack member 1 domain 10
 [*SwitchC-stack] stack member 1 renumber 3 inherit-config
 Warning: The stack configuration of member ID 1 will be inherited to member ID 3 after the device resets. Continue? [Y/N]: y
 [*SwitchC-stack] quit
[*SwitchC] commit
 [~SwitchA] interface stack-port 1/1
 [*SwitchA-Stack-Port1/1] port member-group interface 10ge 1/0/1 to 1/0/2
 Warning: After the configuration is complete,
 1.The interface(s) (10GE1/0/1-1/0/4) will be converted to stack mode and be configured with the port crc-statistics trigger error-down command if the configuration does not exist.
 2.The interface(s) may go Error-Down (crc-statistics) because there is no shutdown configuration on the interfaces.Continue? [Y/N]: y
 [*SwitchA-Stack-Port1/1] quit
 [*SwitchA] interface stack-port 1/2
 [*SwitchA-Stack-Port1/2] port member-group interface 10ge 1/0/3 to 1/0/4
 [*SwitchA-Stack-Port1/2] quit
 [*SwitchA] commit
[~SwitchA] quit
 [~SwitchB] interface stack-port 1/1
 [*SwitchB-Stack-Port1/1] port member-group interface 10ge 1/0/1 to 1/0/2
 Warning: After the configuration is complete,
 1.The interface(s) (10GE1/0/1-1/0/4) will be converted to stack mode and be configured with the port crc-statistics trigger error-down command if the configuration does not exist.
 2.The interface(s) may go Error-Down (crc-statistics) because there is no shutdown configuration on the interfaces.Continue? [Y/N]: y
 [*SwitchB-Stack-Port1/1] quit
 [*SwitchB] interface stack-port 1/2
 [*SwitchB-Stack-Port1/2] port member-group interface 10ge 1/0/3 to 1/0/4
 [*SwitchB-Stack-Port1/2] quit
 [*SwitchB] commit
[~SwitchB] quit

 [~SwitchC] interface stack-port 1/1
 [*SwitchC-Stack-Port1/1] port member-group interface 10ge 1/0/1 to 1/0/2
 Warning: After the configuration is complete,
 1.The interface(s) (10GE1/0/1-1/0/4) will be converted to stack mode and be configured with the port crc-statistics trigger error-down command if the configuration does not exist.
 2.The interface(s) may go Error-Down (crc-statistics) because there is no shutdown configuration on the interfaces.Continue? [Y/N]: y
 [*SwitchC-Stack-Port1/1] quit
 [*SwitchC] interface stack-port 1/2
 [*SwitchC-Stack-Port1/2] port member-group interface 10ge 1/0/3 to 1/0/4
 [*SwitchC-Stack-Port1/2] quit
 [*SwitchC] commit
[~SwitchC] quit

 
Handling Process:
1. check customer provide diagnose information , we can found the stack configuration wrong .
                 display stack topology
===============================================================================

Stack Topology:
----------------------------------------------
            Stack-Port 1      Stack-Port 2
MemberID   Status Neighbor   Status Neighbor 
----------------------------------------------
1          up     2          --     --       
2          up     1          --     --       
----------------------------------------------

Stack Link:
----------------------------------------------------------------------------
Stack-Port       Port               Status     PeerPort           PeerStatus
----------------------------------------------------------------------------
Stack-Port1/1    40GE1/0/1          up         40GE2/0/1          up       
Stack-Port1/1    40GE1/0/2          down       --                 --       
Stack-Port2/1    40GE2/0/1          up         40GE1/0/1          up       
Stack-Port2/1    40GE2/0/2          down       --                 --       
#
interface 40GE1/0/2
port mode stack
 stack-port 1/1
port crc-statistics trigger error-down
device transceiver 40GBASE-COPPER
#
interface 40GE2/0/2
port mode stack
 stack-port 2/1
port crc-statistics trigger error-down
device transceiver 40GBASE-COPPER
Please note below information .
 
2. Customer refer to the example used two link added to one Stack-port , but actually customer’s Stack topology connected to each other use one 40G port , so it need to change the configuration .
 

    [~SwitchA] interface stack-port 1/1
    [*SwitchA-Stack-Port1/1] port member-group interface 40ge 1/0/1
    Warning: After the configuration is complete,
    1.The interface(s) (10GE1/0/1-1/0/4) will be converted to stack mode and be configured with the port crc-statistics trigger error-down command if the configuration does not exist.
    2.The interface(s) may go Error-Down (crc-statistics) because there is no shutdown configuration on the interfaces.Continue? [Y/N]: y
    [*SwitchA-Stack-Port1/1] quit
    [*SwitchA] interface stack-port 1/2
    [*SwitchA-Stack-Port1/2] port member-group interface 40ge 1/0/2
    [*SwitchA-Stack-Port1/2] quit
   [*SwitchA] commit
[~SwitchA] quit
    [~SwitchB] interface stack-port 1/1
    [*SwitchB-Stack-Port1/1] port member-group interface 40ge 1/0/1
    Warning: After the configuration is complete,
    1.The interface(s) (10GE1/0/1-1/0/4) will be converted to stack mode and be configured with the port crc-statistics trigger error-down command if the configuration does not exist.
    2.The interface(s) may go Error-Down (crc-statistics) because there is no shutdown configuration on the interfaces.Continue? [Y/N]: y
    [*SwitchB-Stack-Port1/1] quit
    [*SwitchB] interface stack-port 1/2
    [*SwitchB-Stack-Port1/2] port member-group interface 40ge 1/0/2
    [*SwitchB-Stack-Port1/2] quit
   [*SwitchB] commit
[~SwitchB] quit

    [~SwitchC] interface stack-port 1/1
    [*SwitchC-Stack-Port1/1] port member-group interface 40ge 1/0/1
    Warning: After the configuration is complete,
    1.The interface(s) (10GE1/0/1-1/0/4) will be converted to stack mode and be configured with the port crc-statistics trigger error-down command if the configuration does not exist.
    2.The interface(s) may go Error-Down (crc-statistics) because there is no shutdown configuration on the interfaces.Continue? [Y/N]: y
    [*SwitchC-Stack-Port1/1] quit
    [*SwitchC] interface stack-port 1/2
    [*SwitchC-Stack-Port1/2] port member-group interface 40ge 1/0/2
    [*SwitchC-Stack-Port1/2] quit
   [*SwitchC] commit
[~SwitchC] quit

 


 

Root Cause:

Customer want to use Ring Stack Topology , but added all connnected Stack interface to one Stack-Port .
Solution:

Change the 40GE 1/0/2 to stack -port 1/2 , then commit the configuration and reboot the device from Master and backup and Slave .
Note : For ring topology stack , one port connect each other is not strong , if one link flapping , the whole Stack topology will recalculation .

This post was last edited by Skay at 2018-09-12 08:58.

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MVE Created Apr 20, 2018 19:50:44 Helpful(0) Helpful(0)

useful document, thanks
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Telecommunications%20Engineer%2C%20currently%20senior%20project%20manager%20of%20the%20radio%20access%20network%20and%20partner%20of%20Huawei%20de%20Tunisia.

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