Management sessions, Syslog and snmp traps, Mac address changes – Brocade FastIron SX Series Chassis Hardware Installation Guide User Manual
Page 112: Management module redundancy configuration, Changing the default active chassis slot

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Management sessions
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Syslog and SNMP traps
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MAC addresses
The following sections explain the implications for these areas.
Management sessions
You can establish management sessions with the active management module’s management port. If a
switchover occurs, the management port on the original active module shuts down and all open CLI,
Web Management Interface, and Brocade Network Advisor sessions with that port close. You can
open new sessions with the new active module, provided that the new active module has the same
management port connections. (For example, if you were accessing the Web Management Interface
through a PC connected to the original active module’s management port, you can open a new
session if a PC is connected to the new active module’s management port.)
In the scenario described above, you can open a new session using the same IP address you were
using before the switchover. (You configure an IP address for the active module only; if a switchover
occurs, the IP address is used by the new active module.)
Syslog and SNMP traps
When a switchover occurs, the system sends a Syslog message to the local Syslog buffer and also to
the Syslog server, if you have configured the system to use one. In addition, if you have configured an
SNMP trap receiver, the system sends an SNMP trap to the receiver.
When the system is powered on or otherwise reset normally, the system sends a cold start message
and trap. However, if the system is reset as the result of switchover to the standby management
module, the system instead sends a warm start message and trap.
MAC address changes
The MAC addresses in the system are based on the MAC address of the chassis. During switchover,
the system's MAC addresses do not change.
Management module redundancy configuration
Configuring management module redundancy consists of performing one optional task (changing the
default active chassis slot). The following section explains how to perform this task.
Changing the default active chassis slot
By default, the system considers the module installed in the lower-numbered slot to be the active
management module. If desired, you can change the default active chassis slot to the higher-
numbered slot.
To change the default active chassis slot, enter commands such as the following.
device# configure terminal
Brocade(config)# set-active-mgmt mgmt1
Syntax: [no] set-active-mgmt { mgmt0 | mgmt1 }
Management sessions
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