Basic system parameter configuration

2

Setting the SNMP trap holddown time

When a Brocade device starts up, the software waits for Layer 2 convergence (STP) and Layer 3 convergence (OSPF) before beginning to send SNMP traps to external SNMP servers. Until convergence occurs, the device might not be able to reach the servers, in which case the messages are lost.

By default, a Brocade device uses a one-minute holddown time to wait for the convergence to occur before starting to send SNMP traps. After the holddown time expires, the device sends the traps, including traps such as “cold start” or “warm start” that occur before the holddown time expires.

You can change the holddown time to a value from one second to ten minutes.

To change the holddown time for SNMP traps, enter a command such as the following at the global CONFIG level of the CLI.

Brocade(config)# snmp-server enable traps holddown-time 30

The command in this example changes the holddown time for SNMP traps to 30 seconds. The device waits 30 seconds to allow convergence in STP and OSPF before sending traps to the SNMP trap receiver.

Syntax: [no] snmp-server enable traps holddown-time <secs>

The <secs> parameter specifies the number of seconds and can be from 1 – 600 (ten minutes). The default is 60 seconds.

Disabling SNMP traps

Brocade devices come with SNMP trap generation enabled by default for all traps. You can selectively disable one or more of the following traps.

NOTE

By default, all SNMP traps are enabled at system startup.

SNMP Layer 2 traps

The following traps are generated on devices running Layer 2 software:

SNMP authentication keys

Power supply failure

Fan failure

Cold start

Link up

Link down

Bridge new root

Bridge topology change

Locked address violation

SNMP Layer 3 traps

The following traps are generated on devices running Layer 3 software:

SNMP authentication key

Brocade ICX 6650 Administration Guide

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Brocade Communications Systems 6650 manual Setting the Snmp trap holddown time, Disabling Snmp traps, Snmp Layer 2 traps