Max limit for REST sessions reached with SAN Brocade Rest API

ZoranF

Hi.

I configured two our Brocade SANs to be monitored by Rest API and have the same issue on both.

After 15 -20 minutes of SAN scanning, the Max limit for REST sessions reached error is shown in the log and no more data are collected.

Here is part of its log:

2025-11-04 11:40:00: [SAN_A] Cannot login to Rest API! Exiting... 

2025-11-04 11:40:00: [SAN_B] Cannot login to Rest API! Exiting... 

2025-11-04 11:40:00: [SAN_B] JSON body  : {} 

2025-11-04 11:40:00: } 

2025-11-04 11:40:00: } 

2025-11-04 11:40:00:  ] 

2025-11-04 11:40:00:  } 

2025-11-04 11:40:00:   } 

2025-11-04 11:40:00:   "error-module": "rest" 

2025-11-04 11:40:00:   "error-code": 14, 

2025-11-04 11:40:00:   "error-info": { 

2025-11-04 11:40:00:   "error-message": "Max limit for REST sessions reached", 

2025-11-04 11:40:00:   "error-app-tag": "Error", 

2025-11-04 11:40:00:   "error-tag": "operation-failed", 

2025-11-04 11:40:00:   "error-type": "application", 

2025-11-04 11:40:00:  { 

2025-11-04 11:40:00:  "error": [ 

2025-11-04 11:40:00: "errors": { 

2025-11-04 11:40:00: [SAN_B] Request error: { 

2025-11-04 11:40:00: [SAN_B] Request error: 403 Forbidden 

2025-11-04 11:40:00: [SAN_B] POST url     : https://192.168.xxx.yyy/rest/login 

2025-11-04 11:40:00: [SAN_A] JSON body  : {} 

2025-11-04 11:40:00: } 

2025-11-04 11:40:00: } 

2025-11-04 11:40:00:  ] 

2025-11-04 11:40:00:  } 

2025-11-04 11:40:00:   } 

2025-11-04 11:40:00:   "error-module": "rest" 

2025-11-04 11:40:00:   "error-code": 14, 

2025-11-04 11:40:00:   "error-info": { 

2025-11-04 11:40:00:   "error-message": "Max limit for REST sessions reached", 

2025-11-04 11:40:00:   "error-app-tag": "Error", 

2025-11-04 11:40:00:   "error-tag": "operation-failed", 

2025-11-04 11:40:00:   "error-type": "application", 

2025-11-04 11:40:00:  { 

The XorMon creates multiple Rest API connections and after it creates three of them, error rised.

admin> mgmtapp --showsessions

The following is the history of logins to the switch from external applications

(Login Timestamp, IP Address, User Account, Application, SessionId, Current VF, Auth Token, Protocol, UUID):

. . .

The following are the sessions from the external applications that are currently active:

2025/11/04-12:16:05.393245, 192.168.xxx.yyy, Monitor, libwww-perl/6.68, d7764c143b6be7bc694fa38e36d2f905676348694c13dacb757f859b77a27c31, -1, No, HTTPS, None

2025/11/04-12:26:05.464356, 192.168.xxx.yyy, Monitor, libwww-perl/6.68, 8fadb016d776d3e88494bd9761edb0e293a228a003829c1ac408e12102efddf0, -1, No, HTTPS, None

2025/11/04-12:31:05.563756, 192.168.xxx.yyy, Monitor, libwww-perl/6.68, 08d0c000433b1e1e31cce8b5430d3a98d73823e7a443d2c9e90659da9b88c2bb, -1, No, HTTPS, None

Both SANs have the same, standard Rest config with enabled KeepAlive as described at https://xormon.com/install-network.php#SAN-RESTAPI:

admin> mgmtapp --show

 REST Configuration:

    Interface State: Enabled

    Effective Protocol: HTTPS only

    HTTP State: Enabled

    Session Count: 3

 HTTPS Configuration:

    KeepAlive : Enabled

    KeepAliveTimeout : 15sec

Is there something I am missing? Where can be the problem?

Regards,

Zoran

Karel

Hi,

we are aware of this issue and are working to fix it. We will let you know.

ZoranF

Hi.

Super, many thanks!

Karel

Hi,

use the following file as a fix:

https://download.xormon.com/patch/2.0.25-2-gf43bff/SanBrocadeRestApi.pm.gz

Gunzip it and copy to this path in your Xormon application directory (755, xormon owner):

/home/xormon/xormon-ng/server-nest/microservices/sanbrcdrestapi/

-rwxrwxr-x 1 xormon xormon 94960 Nov 19 12:02 SanBrocadeRestApi.pm

If your web browser gunzips it automatically then just rename it: mv SanBrocadeRestApi.pm.gz SanBrocadeRestApi.pm

Make sure the filesize is the same as in the example above

After deploying that file:

1. restart sanbrcdrestapi microservice

su - xormon
cd /home/xormon/xormon-ng/
./xormon.sh start sanbrcdrestapi

2. terminate old REST API sessions on the switch if necessary

https://xormon.com/install-network.php#SAN-RESTAPI

--> Terminate running REST sessions: