Error message: "Max limit for REST sessions reached"

Got error from Brocade Switch with IP 10.10.101.147! (body: {
 "errors": {
  "error": [
   {
    "error-type": "application",
    "error-tag": "operation-failed",
    "error-app-tag": "Error",
    "error-path": "/rest/login",
    "error-message": "Max limit for REST sessions reached",
    "error-info": {
     "error-code": 14,
     "error-module": "auth"
    }

BVQ Version: 6.2 and above

Suggested Action:

By default, the SSH session limits on Brocade switches is set to 3. The number of SSH sessions can be increased up to 10 by using CLI command mgmtapp --config -maxrestsession <1...10>

Brocade scanner fails with "authentication failed"

Due to a bug in FOS version 8.2.3a and 8.2.3a1, communication via SNMP and REST APIs is broken after an update causing Brocade REST scanners to fail.

Root cause is a file descriptor leak that occurs in weblinker during LDAP authentication. Once all file descriptors are consumed a verify error is logged.  This also results in webtools authentication failing, causing SANnav, BNA or BVQ to be unable to authenticate with the switch.

BVQ Version: any

Suggested Action:

Workaround
Performing an hafailover on a director or an hareboot on a non-director will restore connectivity.  Once executed, disabling LDAP will prevent the issue from being hit. If LDAP cannot be disabled, reducing the number of login attempts via HTTP/Webtools will increase the timeframe before the issue is observed again. Downgrading from 8.2.3a or 8.2.3a1 to a lower release will also stop the issue from occurring.

Final Fix
FOS 8.2.3a2

Error message: "E11000 duplicate key error collection: bvq.dgx_brocade_rule"

There is a known Brocade bug which leads to duplicate brocade rule entries. See Brocade documentation FOS-845272. This bug is fixed in Brocade FOS 9.1.1.c, 9.2.0 or higher.

BVQ Version: 2023.H1.2

Suggested Action:

There are two ways to resolve this issue:

• upgrade BVQ to version 2023H12023.H1.3 or higher. This version can cope with such duplicate entries
• preferred: upgrade Brocade switches to FOS 9.1.1.c , or later 9.1 versions. (9.2.0 or higher which contain a fix for this bug.. is not yet supported by 2023.H1.3)