istack fault on S6700 due to optical module mismatch

Issue Description

When you attach 2 switch model s6700-48-EI using SFP+ SFP-10G-CU1M optical transceiver you get following error building iStack:

[STAR-25-A-stack-port0/1]port interface XGigabitEthernet 0/0/48 enable

Warning: Enabling stack port cause configuration loss on the interface, continue?[Y/N]:y

Error: Configuration failed. Please check optical module(s).

[STAR-25-A-stack-port0/1]dis transceiver interface XGigabitEthernet 0/0/48

 

XGigabitEthernet0/0/48 transceiver information:

————————————————————-

Common information:

  Transceiver Type               :1X_CopperPassive_SFP

  Connector Type                 :Copper Pigtail

  Wavelength(nm)                 :-

  Transfer Distance(m)           :1(copper)

  Digital Diagnostic Monitoring  :NO

  Vendor Name                    :TIMEINTERCONNECT

  Vendor Part Number             :D09181-4A      

  Ordering Name                  :

————————————————————-

Manufacture information:

  Manu. Serial Number            :D142460133     

  Manufacturing Date             :2014-09-03

  Vendor Name                    :TIMEINTERCONNECT

————————————————————-

[STAR-25-A-stack-port0/1]dis cu int XGigabitEthernet 0/0/48

#

interface XGigabitEthernet0/0/48

#

 

 

Alarm Information

Warning: Enabling stack port cause configuration loss on the interface, continue?[Y/N]:y

Error: Configuration failed. Please check optical module(s).

Handling Process

1) check if the module is certified by Huawei

2) Attach same optical module (same transceiver) for port grouped by 4.

Root Cause

You must use same transceiver  to port 45,46,47,48.

If you have 2 kind of transceiver on that ports you can’t make iStack work as aspected.

Solution

Unplug transceiver sfp (1Gb) if are connected on the same port grup (controlled by same hardware chip) use only SFP+ transceiver

Huawei S6700 series switch:

S6720-30C-EI-24S-AC

S6720-54C-EI-48S-AC

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