從 NX-OS 8.5.1 進行 Cisco MDS 降級嘗試失敗並顯示錯誤: 服務:snmpd,功能:CAP_FEATURE_SNMP_USER_PRIV_TYPE

Riepilogo: 由於 snmp 組態中的相容性錯誤,因此無法從 8.5.1 降級至先前的 8.x 版本。

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Sintomi

1.ISSD 表單 nx-os 8.5.1 失敗並顯示錯誤:  服務:snmpd,功能:

CAP_FEATURE_SNMP_USER_PRIV_TYPE 2.設定 snmp-server 使用者的 ISSU 至 NX-OS 8.5(1) 會在組態中包含取消參數,以防止 ISSD:
 
At 8.4(1a) username test841a is created:

MDS9710(config)# username test841a password 
This is what it looks like in the 8.4(1a) running-config:

username test841a password 5 $5$BHHjWJKi$NLeBFmSWaiG9bdtlchxDdC0MqMOIB5GetNr/g4idtv6  role network-operator
username test841a passphrase  lifetime 99999 warntime 14 gracetime 3
snmp-server user test841a network-operator auth md5 0x83c6f217cef0f643fee4a3130f488a14 priv 0x83c6f217cef0f643fee4a3130f488a14 localizedkey

ISSU 至 8.5(1)。

這是在 8.5(1) 個 running-config 中的外觀。請注意,現在已插入取消關鍵字:
 
username test841a password 5 $5$BHHjWJKi$NLeBFmSWaiG9bdtlchxDdC0MqMOIB5GetNr/g4idtv6  role network-operator
username test841a passphrase  lifetime 99999 warntime 14 gracetime 3
snmp-server user test841a network-operator auth md5 0x83c6f217cef0f643fee4a3130f488a14 priv des 0x83c6f217cef0f643fee4a3130f488a14 localizedkey

3.無法將 ISSD 回復至 8.4 (1a):相容性檢查記錄錯誤,並指出如何移除具有 DES 隱私類型的使用者
 
F241-15-09-9710-1# show incompatibility-all system bootflash:m9700-sf4ek9-mz.8.4.1a.bin
Checking incompatible configuration(s):
The following configurations on active are incompatible with  the system image
1) Service : snmpd , Capability : CAP_FEATURE_SNMP_USER_PRIV_TYPE

Description : SNMP user (show running snmp) with DES privacy config present which is not compatible with older image. Please re-configure to remove the DES priv type.
Capability requirement : STRICT
Enable/Disable command :  no snmp-server user 


Causa

Cisco bug id CSCvy23094 Unable to ISSD from NX-OS 8.5(1) with 'snmp-server user' with 'des' parameter in running-config Conditions: Applies to all MDS switch running NX-OS 8.5(1) with snmp-server user users config


Conditions.






Risoluzione

因應措施:
更新或刪除 snmp-server 使用者,以繼續從 NX-OS 8.5.1 進行降級。如果 NX-OS 8.5(1) 上更新 snmp-server 使用者,則取消加密參數會變更為 aes-128,且將允許 ISSD。


要刪除的命令範例:
config
no snmp-server user test841a network-operator auth md5 0x83c6f217cef0f643fee4a3130f488a14 priv des 0x83c6f217cef0f643fee4a3130f488a14 localizedkey 范

例命令,以重新建立/重新設定:
config
snmp-server user test841a network-operator auth md5 password priv password




Fix:  升級至 NX-OS 9.2.1 或更新版本。  此版本所形成的降級/ISSD 將不會遇到此錯誤。

Informazioni aggiuntive

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Proprietà dell'articolo
Numero articolo: 000206287
Tipo di articolo: Solution
Ultima modifica: 08 giu 2023
Versione:  4
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