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VLAN statistics not working after modifying the shared group.

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TitleVLAN statistics not working after modifying the shared group.
Symptoms
VLAN statistics stop to work if change sharing group load-balance hashing algorithm:
X440-24t-10G[34].4 # show configuration | i sharing
enable sharing 25 grouping 25-26 algorithm address-based L2 lacp
X440-24t-10G[34].5 # show vlan statistics no-refresh 
VLAN Statistics
Vlan                Rx Total        Rx Byte         Tx Total          Tx Byte
                     Frames          Count           Frames            Count
================================================================================
v200                      3             204               -                - 
================================================================================
X440-24t-10G[34].6 # ping count 3 10.0.0.35
Ping(ICMP) 10.0.0.35: 3 packets, 8 data bytes, interval 1 second(s).
16 bytes from 10.0.0.35: icmp_seq=0 ttl=64 time=34 ms
16 bytes from 10.0.0.35: icmp_seq=1 ttl=64 time=11 ms
16 bytes from 10.0.0.35: icmp_seq=2 ttl=64 time=2.552 ms

--- 10.0.0.35 ping statistics ---
3 packets transmitted, 3 packets received, 0% loss
round-trip min/avg/max = 2/16/34 ms
X440-24t-10G[34].7 # show vlan statistics no-refresh 
VLAN Statistics
Vlan                Rx Total        Rx Byte         Tx Total          Tx Byte
                     Frames          Count           Frames            Count
================================================================================
v200                      7             476               -                - 
================================================================================
X440-24t-10G[34].8 # disable sharing 25
Warning: Any config on the master port is lost (STP, IGMP filter, IGMP Static Group, MAC-Security, CFM, TRILL, etc.)

* X440-24t-10G[34].9 # enable sharing 25 grouping 25,26 algorithm address-based L3_L4 lacp 
Warning: Any config on the master port is lost (STP, IGMP Filter, IGMP Static Group, MAC-Security, CFM, TRILL, etc.)

* X440-24t-10G[34].10 # conf v200 add port 25 tag 
* X440-24t-10G[34].11 # unconf port 25,26 monitor vlan v200
* X440-24t-10G[34].12 # conf port 25,26 monitor vlan v200
* X440-24t-10G[34].13 # show vlan statistics no-refresh 
VLAN Statistics
Vlan                Rx Total        Rx Byte         Tx Total          Tx Byte
                     Frames          Count           Frames            Count
================================================================================
v200                      -               -               -                - 
================================================================================
* X440-24t-10G[34].15 # show vlan statistics no-refresh 
VLAN Statistics
Vlan                Rx Total        Rx Byte         Tx Total          Tx Byte
                     Frames          Count           Frames            Count
================================================================================
v200                      -               -               -                - 
================================================================================
* X440-24t-10G[34].14 # ping count 3 10.0.0.35
Ping(ICMP) 10.0.0.35: 3 packets, 8 data bytes, interval 1 second(s).
16 bytes from 10.0.0.35: icmp_seq=0 ttl=64 time=18 ms
16 bytes from 10.0.0.35: icmp_seq=1 ttl=64 time=11 ms
16 bytes from 10.0.0.35: icmp_seq=2 ttl=64 time=14 ms

--- 10.0.0.35 ping statistics ---
3 packets transmitted, 3 packets received, 0% loss
round-trip min/avg/max = 11/14/18 ms
* X440-24t-10G[34].15 # show vlan statistics no-refresh 
VLAN Statistics
Vlan                Rx Total        Rx Byte         Tx Total          Tx Byte
                     Frames          Count           Frames            Count
================================================================================
v200                      -               -               -                - 
================================================================================
* X440-24t-10G[34].16 # show vlan statistics no-refresh 
VLAN Statistics
Vlan                Rx Total        Rx Byte         Tx Total          Tx Byte
                     Frames          Count           Frames            Count
================================================================================
v200                      -               -               -                - 
================================================================================
Environment
  • EXOS 16.x, 21.x
  • All EXOS platforms
  • VLAN statistics
Cause
This issue is a result of CR: xos0061948.
Resolution
Upgrade to EXOS where xos0061942 is fixed.
 
Additional notes

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