Discovery Brocade G720 fabrics

AchimM279672093
Tera Contributor

yesterday

Hello,

We are trying to discover Brocade G720 fabrics using SNMPv3. Unfortunately, we haven’t had any success. We are also unable to retrieve information via SNMP using SNMPWALK. It does not appear to be a username or password issue, because we receive error messages when we enter them incorrectly.

So, it seems that authentication is working somehow, but we are not getting any results back.

We think we might not have configured the Brocade settings correctly, but we can’t really figure it out from the Brocade manual.

Perhaps one of you has encountered a similar problem with Brocade before and can give us the key tip we need.

Best regards,
Achim

 

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pr8172510
Tera Guru

an hour ago

Hi @AchimM279672093,

 If SNMPWALK cannot retrieve data, the issue is typically with the device SNMP configuration or network connectivity rather than Discovery itself.

   check:

  • Verify SNMPv3 settings match exactly on both sides:

    • Username

    • Authentication protocol (SHA/MD5)

    • Privacy protocol (AES/DES)

    • Security level (authNoPriv / authPriv)

  • Confirm UDP 161 is open between the MID Server and the Brocade switch.

  • Test SNMPWALK from the MID Server host against a standard OID 1.3.6.1.2.1.1


If this does not return data, Discovery will also fail.

  • Check Brocade SNMP Views / ACLs. A common issue is that authentication succeeds, but the configured SNMP view does not allow access to the required MIBs, resulting in empty responses.

  • Review the Discovery Classification logs. ServiceNow Discovery requires successful SNMP responses to classify Fibre Channel switches and populate CI data.

 focus on getting a successful SNMPWALK result from the MID Server host. Once SNMP communication is working, ServiceNow Discovery should be able to identify and discover the Brocade G720 fabric if the required MIBs are exposed.

 

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AchimM279672093
Tera Contributor
In response to pr8172510

an hour ago

Since we’re not getting any results with SNMPWALK either, I’m assuming there’s a misconfiguration in the Brocade. Unfortunately, we can’t find the error in the Brocade, and it’s still unclear to us whether we need to create users not only in the SNMP configuration of the Brocade interface but also in another location.

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