device(config-lbif-1)# exit
device(config)# snmp-server trap-source loopback 1
The commands in this example configure loopback interface 1, assign IP address 10.00.1/24 to the loopback interface, then designate
the interface as the SNMP trap source for this device. Regardless of the port the Brocade device uses to send traps to the receiver, the
traps always arrive from the same source IP address.
Syntax:
[no] snmp-server trap-source
{
ethernet
unit
/
slot
/
port
|
loopback
num
|
ve
num
}
Configuring delay time for notifying VE down event
When all the ports in the VLAN go into an inactive state (for example, the non-forwarding state), the device notifies the Layer 3 protocols
of the VE down event only after the configured timer expires. Once the timer expires, the device checks if any of the ports is in the
forwarding state. If no ports are in the forwarding state, the device notifies the Layer 3 protocols of the VE down event. If any of the ports
is in the forwarding state, the device ignores the down event.
While the timer is running, if any of the ports comes into forwarding state, the device cancels the timer and does not notify the VE down
event to the protocols.
NOTE
In the case of multiple flaps, if any of the ports comes into forwarding state before the delay notification timer expiry then the
device cancels the timer and a fresh timer is started during port down event. Incase of continuous flaps where flap time is less
than delay notification timer, the flaps can be detected by other methods like port statistics or drop in traffic or by the
convergence logs of layer2 loop detection protocols.
Suppressing the link status notification allows a quick port status change and recovery to occur without triggering any of the changes that
are necessary when a port stays down.
By default, the delay time is not configured.
NOTE
Configuring delayed Layer 3 notifications on the VE feature is supported on ICX 7250, ICX 7450, and ICX 7750. product
families from Brocade.
Configuring VE down time notification
Perform the following steps to configure the delay time for notifying the Layer 3 protocols of the VE down event.
1. From global configuration mode, enter VE interface configuration mode.
device(config)# interface ve 50
2. Configure the delay notifications time value.
device(config-vif-50)# delay-notifications 20
3. Use the
show ip interface ve
command to confirm the configuration.
The following example shows how to configure the delay time for notifying the Layer 3 protocols of the VE down event.
device(config)# interface ve 50
device(config-vif-50)# delay-notifications 20
Configuring IP parameters - Layer 3 switches
FastIron Ethernet Switch Layer 3 Routing
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