How Do You Enable and Disable Registered State Change Notification (RSCN) on a Brocade Switch?

Asset ID:	1-71-1599997.1
Update Date:	2013-11-18
Keywords:

Solution Type Technical Instruction Sure

Solution 1599997.1 : How Do You Enable and Disable Registered State Change Notification (RSCN) on a Brocade Switch?

Applies to:

Brocade 300 Switch - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Goal

How to enable and disable Registered State Change Notification (RSCN) on a Brocade switch.

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Solution

Brocade uses a value called RSCN suppression to manage registered state change notifications.
The default value is off (disabled).

RSCN suppressed off/disabled means that device changes on the port generate
an RSCN to all other end devices that are zoned with this one. By default, RSCN
suppression is disabled on all ports.

RSCN on/enabled means any device changes on the port will not
generate an RSCN to any other end device.

To view the current stat of RSCN suppression on a port use the cli command portcfgshow:

Example:

brocade:admin> portcfgshow 1
Area Number:              1
Speed Level:              AUTO(HW)
Fill Word:                0(Idle-Idle)
AL_PA Offset 13:          OFF
Trunk Port                ON
Long Distance             OFF
VC Link Init              OFF
Locked L_Port             OFF
Locked G_Port             OFF
Disabled E_Port           OFF
Locked E_Port             OFF
ISL R_RDY Mode            OFF
RSCN Suppressed           OFF <---------- Current RSCN Suppressed value is off.
Persistent Disable        OFF
LOS TOV enable            OFF
NPIV capability           ON
QOS E_Port                OFF
Port Auto Disable:        OFF
EX Port                   OFF
Mirror Port               OFF
F_Port Buffers            OFF
Fault Delay:              0(R_A_TOV)
NPIV PP Limit:            126

To enable RSCN suppression use the cli command portcfg rscnsupr <port #> --enable

brocade:admin> portcfg rscnsupr 1 --enable

brocade:admin> portcfgshow 1
Area Number:              1
Speed Level:              AUTO(HW)
Fill Word:                0(Idle-Idle)
AL_PA Offset 13:          OFF
Trunk Port                ON
Long Distance             OFF
VC Link Init              OFF
Locked L_Port             OFF
Locked G_Port             OFF
Disabled E_Port           OFF
Locked E_Port             OFF
ISL R_RDY Mode            OFF
RSCN Suppressed           ON
Persistent Disable        OFF
LOS TOV enable            OFF
NPIV capability           ON
QOS E_Port                OFF
Port Auto Disable:        OFF
EX Port                   OFF
Mirror Port               OFF
F_Port Buffers            OFF
Fault Delay:              0(R_A_TOV)
NPIV PP Limit:            126

To disable RSCN suppression use the cli command portcfg rscnsupr <port #> --disable

brocade:admin> portcfg rscnsupr 1 --disable

brocade:admin> portcfgshow 1
Area Number:              1
Speed Level:              AUTO(HW)
Fill Word:                0(Idle-Idle)
AL_PA Offset 13:          OFF
Trunk Port                ON
Long Distance             OFF
VC Link Init              OFF
Locked L_Port             OFF
Locked G_Port             OFF
Disabled E_Port           OFF
Locked E_Port             OFF
ISL R_RDY Mode            OFF
RSCN Suppressed           OFF <---------------RSCN Suppressed off/disabled
Persistent Disable        OFF
LOS TOV enable            OFF
NPIV capability           ON
QOS E_Port                OFF
Port Auto Disable:        OFF
EX Port                   OFF
Mirror Port               OFF
F_Port Buffers            OFF
Fault Delay:              0(R_A_TOV)
NPIV PP Limit:            126

For more details on the portcfg rscnsupr command, or any other Brocade cli command refer to the Brocabe command reference guide.

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