Opcional: Configure SNMPv3 para su switch
SNMP se utiliza para supervisar los switches. El monitor de estado del switch Ethernet (CSHM) utiliza SNMP para supervisar el estado y el rendimiento del clúster y los switches de almacenamiento. De forma predeterminada, SNMPv2c se configura automáticamente a través del archivo de configuración de referencia (RCF).
SNMPv3 es más seguro que SNMPv2 porque introduce características de seguridad robustas como la autenticación, el cifrado y la integridad de los mensajes, que protegen contra el acceso no autorizado y garantizan la confidencialidad y la integridad de los datos durante la transmisión.
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SNMPv3 solo es compatible con ONTAP 9.12.1 y versiones posteriores. |
Siga este procedimiento para configurar SNMPv3 para su conmutador específico, que es compatible con CSHM.
Los siguientes comandos se utilizan para configurar un nombre de usuario SNMPv3 en los conmutadores Broadcom, Cisco y NVIDIA:
Configure un OPERADOR DE RED DE nombre de usuario SNMPv3 en los conmutadores Broadcom BES-53248.
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Para sin autenticación:
snmp-server user SNMPv3UserNoAuth NETWORK-OPERATOR noauth
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Para autenticación MD5/SHA:
snmp-server user SNMPv3UserAuth NETWORK-OPERATOR [auth-md5|auth-sha]
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Para autenticación MD5/SHA con cifrado AES/DES:
snmp-server user SNMPv3UserAuthEncrypt NETWORK-OPERATOR [auth-md5|auth-sha] [priv-aes128|priv-des]
El siguiente comando configura un nombre de usuario SNMPv3 en el lado ONTAP:
security login create -user-or-group-name SNMPv3_USER -application snmp -authentication-method usm -remote-switch-ipaddress ADDRESS
El siguiente comando establece el nombre de usuario SNMPv3 con CSHM:
cluster1::*> system switch ethernet modify -device DEVICE -snmp-version SNMPv3 -community-or-username SNMPv3_USER
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Configure el usuario SNMPv3 en el conmutador para que utilice autenticación y cifrado:
show snmp status
(sw1)(Config)# snmp-server user <username> network-admin auth-md5 <password> priv-aes128 <password> (cs1)(Config)# show snmp user snmp Name Group Name Auth Priv Meth Meth Remote Engine ID ----------------- ------------------ ---- ------ ------------------------- <username> network-admin MD5 AES128 8000113d03d8c497710bee
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Configure el usuario SNMPv3 en el lado ONTAP:
security login create -user-or-group-name <username> -application snmp -authentication-method usm -remote-switch-ipaddress 10.231.80.212
cluster1::*> security login create -user-or-group-name <username> -application snmp -authentication-method usm -remote-switch-ipaddress 10.231.80.212 Enter the authoritative entity's EngineID [remote EngineID]: Which authentication protocol do you want to choose (none, md5, sha, sha2-256) [none]: md5 Enter the authentication protocol password (minimum 8 characters long): Enter the authentication protocol password again: Which privacy protocol do you want to choose (none, des, aes128) [none]: aes128 Enter privacy protocol password (minimum 8 characters long): Enter privacy protocol password again:
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Configure CSHM para monitorizar con el nuevo usuario de SNMPv3:
system switch ethernet show-all -device "sw1" -instance
cluster1::*> system switch ethernet show-all -device "sw1 (b8:59:9f:09:7c:22)" -instance Device Name: sw1 IP Address: 10.228.136.24 SNMP Version: SNMPv2c Is Discovered: true DEPRECATED-Community String or SNMPv3 Username: - Community String or SNMPv3 Username: cshm1! Model Number: BES-53248 Switch Network: cluster-network Software Version: 3.9.0.2 Reason For Not Monitoring: None <---- should display this if SNMP settings are valid Source Of Switch Version: CDP/ISDP Is Monitored ?: true Serial Number of the Device: QTFCU3826001C RCF Version: v1.8X2 for Cluster/HA/RDMA cluster1::*> cluster1::*> system switch ethernet modify -device "sw1" -snmp-version SNMPv3 -community-or-username <username>
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Compruebe que el número de serie que se va a consultar con el usuario SNMPv3 recién creado es el mismo que se detalla en el paso anterior después de que se haya completado el período de sondeo de CSHM.
system switch ethernet polling-interval show
cluster1::*> system switch ethernet polling-interval show Polling Interval (in minutes): 5 cluster1::*> system switch ethernet show-all -device "sw1" -instance Device Name: sw1 IP Address: 10.228.136.24 SNMP Version: SNMPv3 Is Discovered: true DEPRECATED-Community String or SNMPv3 Username: - Community String or SNMPv3 Username: <username> Model Number: BES-53248 Switch Network: cluster-network Software Version: 3.9.0.2 Reason For Not Monitoring: None <---- should display this if SNMP settings are valid Source Of Switch Version: CDP/ISDP Is Monitored ?: true Serial Number of the Device: QTFCU3826001C RCF Version: v1.8X2 for Cluster/HA/RDMA
Configure un nombre de usuario SNMPv3_USER de SNMPv3 en switches Cisco 9336C-FX2:
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Para sin autenticación:
snmp-server user SNMPv3_USER NoAuth
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Para autenticación MD5/SHA:
snmp-server user SNMPv3_USER auth [md5|sha] AUTH-PASSWORD
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Para autenticación MD5/SHA con cifrado AES/DES:
snmp-server user SNMPv3_USER AuthEncrypt auth [md5|sha] AUTH-PASSWORD priv aes-128 PRIV-PASSWORD
El siguiente comando configura un nombre de usuario SNMPv3 en el lado ONTAP:
security login create -user-or-group-name SNMPv3_USER -application snmp -authentication-method usm -remote-switch-ipaddress ADDRESS
El siguiente comando establece el nombre de usuario SNMPv3 con CSHM:
system switch ethernet modify -device DEVICE -snmp-version SNMPv3 -community-or-username SNMPv3_USER
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Configure el usuario SNMPv3 en el conmutador para que utilice autenticación y cifrado:
show snmp user
(sw1)(Config)# snmp-server user SNMPv3User auth md5 <auth_password> priv aes-128 <priv_password> (sw1)(Config)# show snmp user ----------------------------------------------------------------------------- SNMP USERS ----------------------------------------------------------------------------- User Auth Priv(enforce) Groups acl_filter ----------------- --------------- --------------- --------------- ----------- admin md5 des(no) network-admin SNMPv3User md5 aes-128(no) network-operator ----------------------------------------------------------------------------- NOTIFICATION TARGET USERS (configured for sending V3 Inform) ----------------------------------------------------------------------------- User Auth Priv ----------------- ------------------ ------------ (sw1)(Config)#
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Configure el usuario SNMPv3 en el lado ONTAP:
security login create -user-or-group-name <username> -application snmp -authentication-method usm -remote-switch-ipaddress 10.231.80.212
cluster1::*> system switch ethernet modify -device "sw1 (b8:59:9f:09:7c:22)" -is-monitoring-enabled-admin true cluster1::*> security login create -user-or-group-name <username> -application snmp -authentication-method usm -remote-switch-ipaddress 10.231.80.212 Enter the authoritative entity's EngineID [remote EngineID]: Which authentication protocol do you want to choose (none, md5, sha, sha2-256) [none]: md5 Enter the authentication protocol password (minimum 8 characters long): Enter the authentication protocol password again: Which privacy protocol do you want to choose (none, des, aes128) [none]: aes128 Enter privacy protocol password (minimum 8 characters long): Enter privacy protocol password again:
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Configure CSHM para monitorizar con el nuevo usuario de SNMPv3:
system switch ethernet show-all -device "sw1" -instance
cluster1::*> system switch ethernet show-all -device "sw1" -instance Device Name: sw1 IP Address: 10.231.80.212 SNMP Version: SNMPv2c Is Discovered: true SNMPv2c Community String or SNMPv3 Username: cshm1! Model Number: N9K-C9336C-FX2 Switch Network: cluster-network Software Version: Cisco Nexus Operating System (NX-OS) Software, Version 9.3(7) Reason For Not Monitoring: None <---- displays when SNMP settings are valid Source Of Switch Version: CDP/ISDP Is Monitored ?: true Serial Number of the Device: QTFCU3826001C RCF Version: v1.8X2 for Cluster/HA/RDMA cluster1::*> cluster1::*> system switch ethernet modify -device "sw1" -snmp-version SNMPv3 -community-or-username <username> cluster1::*>
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Compruebe que el número de serie que se va a consultar con el usuario SNMPv3 recién creado es el mismo que se detalla en el paso anterior después de que se haya completado el período de sondeo de CSHM.
system switch ethernet polling-interval show
cluster1::*> system switch ethernet polling-interval show Polling Interval (in minutes): 5 cluster1::*> system switch ethernet show-all -device "sw1" -instance Device Name: sw1 IP Address: 10.231.80.212 SNMP Version: SNMPv3 Is Discovered: true SNMPv2c Community String or SNMPv3 Username: SNMPv3User Model Number: N9K-C9336C-FX2 Switch Network: cluster-network Software Version: Cisco Nexus Operating System (NX-OS) Software, Version 9.3(7) Reason For Not Monitoring: None <---- displays when SNMP settings are valid Source Of Switch Version: CDP/ISDP Is Monitored ?: true Serial Number of the Device: QTFCU3826001C RCF Version: v1.8X2 for Cluster/HA/RDMA cluster1::*>
Configure un nombre de usuario SNMPv3 SNMPv3_USER en los switches NVIDIA SN2100 que ejecutan CLI 5,4:
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Para sin autenticación:
net add snmp-server username SNMPv3_USER auth-none
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Para autenticación MD5/SHA:
net add snmp-server username SNMPv3_USER [auth-md5|auth-sha] AUTH-PASSWORD
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Para autenticación MD5/SHA con cifrado AES/DES:
net add snmp-server username SNMPv3_USER [auth-md5|auth-sha] AUTH-PASSWORD [encrypt-aes|encrypt-des] PRIV-PASSWORD
El siguiente comando configura un nombre de usuario SNMPv3 en el lado ONTAP:
security login create -user-or-group-name SNMPv3_USER -application snmp -authentication-method usm -remote-switch-ipaddress ADDRESS
El siguiente comando establece el nombre de usuario SNMPv3 con CSHM:
system switch ethernet modify -device DEVICE -snmp-version SNMPv3 -community-or-username SNMPv3_USER
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Configure el usuario SNMPv3 en el conmutador para que utilice autenticación y cifrado:
net show snmp status
cumulus@sw1:~$ net show snmp status Simple Network Management Protocol (SNMP) Daemon. --------------------------------- ---------------- Current Status active (running) Reload Status enabled Listening IP Addresses all vrf mgmt Main snmpd PID 4318 Version 1 and 2c Community String Configured Version 3 Usernames Not Configured --------------------------------- ---------------- cumulus@sw1:~$ cumulus@sw1:~$ net add snmp-server username SNMPv3User auth-md5 <password> encrypt-aes <password> cumulus@sw1:~$ net commit --- /etc/snmp/snmpd.conf 2020-08-02 21:09:34.686949282 +0000 +++ /run/nclu/snmp/snmpd.conf 2020-08-11 00:13:51.826126655 +0000 @@ -1,26 +1,28 @@ # Auto-generated config file: do not edit. # agentaddress udp:@mgmt:161 agentxperms 777 777 snmp snmp agentxsocket /var/agentx/master createuser _snmptrapusernameX +createuser SNMPv3User MD5 <password> AES <password> ifmib_max_num_ifaces 500 iquerysecname _snmptrapusernameX master agentx monitor -r 60 -o laNames -o laErrMessage "laTable" laErrorFlag != 0 pass -p 10 1.3.6.1.2.1.1.1 /usr/share/snmp/sysDescr_pass.py pass_persist 1.2.840.10006.300.43 /usr/share/snmp/ieee8023_lag_pp.py pass_persist 1.3.6.1.2.1.17 /usr/share/snmp/bridge_pp.py pass_persist 1.3.6.1.2.1.31.1.1.1.18 /usr/share/snmp/snmpifAlias_pp.py pass_persist 1.3.6.1.2.1.47 /usr/share/snmp/entity_pp.py pass_persist 1.3.6.1.2.1.99 /usr/share/snmp/entity_sensor_pp.py pass_persist 1.3.6.1.4.1.40310.1 /usr/share/snmp/resq_pp.py pass_persist 1.3.6.1.4.1.40310.2 /usr/share/snmp/cl_drop_cntrs_pp.py pass_persist 1.3.6.1.4.1.40310.3 /usr/share/snmp/cl_poe_pp.py pass_persist 1.3.6.1.4.1.40310.4 /usr/share/snmp/bgpun_pp.py pass_persist 1.3.6.1.4.1.40310.5 /usr/share/snmp/cumulus-status.py pass_persist 1.3.6.1.4.1.40310.6 /usr/share/snmp/cumulus-sensor.py pass_persist 1.3.6.1.4.1.40310.7 /usr/share/snmp/vrf_bgpun_pp.py +rocommunity cshm1! default rouser _snmptrapusernameX +rouser SNMPv3User priv sysobjectid 1.3.6.1.4.1.40310 sysservices 72 -rocommunity cshm1! default net add/del commands since the last "net commit" User Timestamp Command ---------- -------------------------- ------------------------------------------------------------------------- SNMPv3User 2020-08-11 00:13:51.826987 net add snmp-server username SNMPv3User auth-md5 <password> encrypt-aes <password> cumulus@sw1:~$ cumulus@sw1:~$ net show snmp status Simple Network Management Protocol (SNMP) Daemon. --------------------------------- ---------------- Current Status active (running) Reload Status enabled Listening IP Addresses all vrf mgmt Main snmpd PID 24253 Version 1 and 2c Community String Configured Version 3 Usernames Configured <---- Configured here --------------------------------- ---------------- cumulus@sw1:~$
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Configure el usuario SNMPv3 en el lado ONTAP:
security login create -user-or-group-name SNMPv3User -application snmp -authentication-method usm -remote-switch-ipaddress 10.231.80.212
cluster1::*> security login create -user-or-group-name SNMPv3User -application snmp -authentication-method usm -remote-switch-ipaddress 10.231.80.212 Enter the authoritative entity's EngineID [remote EngineID]: Which authentication protocol do you want to choose (none, md5, sha, sha2-256) [none]: md5 Enter the authentication protocol password (minimum 8 characters long): Enter the authentication protocol password again: Which privacy protocol do you want to choose (none, des, aes128) [none]: aes128 Enter privacy protocol password (minimum 8 characters long): Enter privacy protocol password again:
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Configure CSHM para monitorizar con el nuevo usuario de SNMPv3:
system switch ethernet show-all -device "sw1 (b8:59:9f:09:7c:22)" -instance
cluster1::*> system switch ethernet show-all -device "sw1 (b8:59:9f:09:7c:22)" -instance Device Name: sw1 (b8:59:9f:09:7c:22) IP Address: 10.231.80.212 SNMP Version: SNMPv2c Is Discovered: true DEPRECATED-Community String or SNMPv3 Username: - Community String or SNMPv3 Username: cshm1! Model Number: MSN2100-CB2FC Switch Network: cluster-network Software Version: Cumulus Linux version 4.4.3 running on Mellanox Technologies Ltd. MSN2100 Reason For Not Monitoring: None Source Of Switch Version: LLDP Is Monitored ?: true Serial Number of the Device: MT2110X06399 <---- serial number to check RCF Version: MSN2100-RCF-v1.9X6-Cluster-LLDP Aug-18-2022 cluster1::*> cluster1::*> system switch ethernet modify -device "sw1 (b8:59:9f:09:7c:22)" -snmp-version SNMPv3 -community-or-username SNMPv3User
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Compruebe que el número de serie que se va a consultar con el usuario SNMPv3 recién creado es el mismo que se detalla en el paso anterior después de que se haya completado el período de sondeo de CSHM.
system switch ethernet polling-interval show
cluster1::*> system switch ethernet polling-interval show Polling Interval (in minutes): 5 cluster1::*> system switch ethernet show-all -device "sw1 (b8:59:9f:09:7c:22)" -instance Device Name: sw1 (b8:59:9f:09:7c:22) IP Address: 10.231.80.212 SNMP Version: SNMPv3 Is Discovered: true DEPRECATED-Community String or SNMPv3 Username: - Community String or SNMPv3 Username: SNMPv3User Model Number: MSN2100-CB2FC Switch Network: cluster-network Software Version: Cumulus Linux version 4.4.3 running on Mellanox Technologies Ltd. MSN2100 Reason For Not Monitoring: None Source Of Switch Version: LLDP Is Monitored ?: true Serial Number of the Device: MT2110X06399 <---- serial number to check RCF Version: MSN2100-RCF-v1.9X6-Cluster-LLDP Aug-18-2022