This article explains why "show forwarding-options hash-key" returns error.

The command returns error as below.

lab@ACX7024X> show forwarding-options hash-key 
Exception:  [Errno -2] Name or service not known

The error is because command support mapping was wrong for ACX7024X.

The problem has been fixed in PR1846150 as below.

lab@ACX7024X> show forwarding-options hash-key 
SENT: Ukern command: show evo-pfemand hashkey
Multiservice Hash Settings
----------------------------
    Source MAC: disabled
    Destination MAC: disabled

Inet Hash Settings
--------------------
    Layer3 Proto: disabled
    Layer4 Proto: disabled

Inet6 Hash Settings
----------------------
    Layer3 Proto: disabled
    Layer4 Proto: disabled

Mpls Hash Settings
---------------------
    Label: disabled
    IpPayload: disabled
    EtherPayload: disabled
    ZeroCW: disabled

As a workaround on non-fixed versions, run the underlying command "show evo-pfemand hashkey" in pfe shell.

lab@ACX7024X> start shell pfe network fpc0
lab@ACX7024X:pfe> show evo-pfemand hashkey