2021-04-25 0

How to Configure Inter-board Protection When Two SCUN Control Boards Working in Active/Standby Mode but Only One Optical Cable Is Configured for Upstr

Product Model

SmartAX MA5600T
Topo
OLT（eth0/9 0 1）—–(g0/0/25-26)SW

Problem Description

The OLT Ports 0/9/0 and 0/9/1 are uplink, now the customer wants inter-board protection that two SCUN control boards working in active/standby mode.

Problem Analysis

When configuring inter-board protection, the system automatically detects the control board on which the optical port is used. Then, the system uses the control board whose optical port is connected with the optical fiber for upstream transmission. In a remote upgrade in such a scenario, the control boards need to be reset and therefore inter-board protection can be configured to facilitate the upgrade. The configurations are as follows:

huawei(config)#protect-group
{ pgid<U><0,63>|protect-target<K> }:protect-target
{ as-mainboard-lag<K>|as-mainboard-port<K>|as-mainboard<K>|epon-uni-port<K>|eth-
nni-lag-member<K>|eth-nni-port<K>|gpon-uni-port<K> }:as-mainboard
{ workmode<K> }:workmode
{ portstate<K> }:portstate
  Command:
          protect-group protect-target as-mainboard workmode portstate
huawei(protect-group-0)#protect-group member board 0/9
{ role<K> }:role
{ member-role<E><work,protect> }:work
  Command:
          protect-group member board 0/9 role work
huawei(protect-group-0)#protect-group member board 0/10 role protect
huawei(protect-group-0)#protect-group enable
huawei(protect-group-0)#quit
huawei(config)#display protect-group
{ <cr>|pgid<U><0,63> }:
  Command:
          display protect-group
  -----------------------------------------------------------------------
  Group ID     : 0
  Admin State  : enable
  -----------------------------------------------------------------------
  Member        Role         Operation         State         PeerMember
  -----------------------------------------------------------------------
  0/9           work         none              active        none
  0/10          protect      none              standby       none
  -----------------------------------------------------------------------
  Total : 1
huawei(config)#display protect-group 0
  -----------------------------------------------------------------------
  Group ID             : 0
  Protect Target       : Active main board and standby main board
  Work Mode            : portstate
  Description          :
  Admin State          : enable
  Operation            : none
  Reversion            : disable
  Reversion Time(s)    : 720
  -----------------------------------------------------------------------
  Member        Role         Operation         State         PeerMember
  -----------------------------------------------------------------------
  0/9           work         none              active        none
  0/10          protect      none              standby       none
  -----------------------------------------------------------------------

 

Root Cause

configuration example, no root cause
Solution Description
provide configuration example

Suggestion

suggest configuring protect-group on different OLT as dual-homing type-B rather than Two Control Boards in one OLT.