Concept Guide

snmp-server traps mac-notification
– Trap messages are generated only for the new MAC and for the MAC that is learnt for the rst time in the system. If same MAC is
learnt on dierent vlan–ids, then the system does not generate trap messages.
– If station–move is detected within 3 seconds, then the system generates station–move trap messages and beyond 3 seconds, you
cannot see any SYSLOG messages in the system. In continuous station–move, the system generates only 4 station–move trap
messages and after every 1 minute, the system generates SYSLOG/trap messages.
– If there is MAC ooding, only 50 MACs are covered in the trap messages in 1 second and other MAC’s learnt in the system are
processed in the next cycle.
NOTE: For the VLT-LAG interfaces, the snmp-server traps mac-notification command should be enabled on both
the interfaces. If the command is congured only on one VLT node, then you cannot see any VLT mismatch in the system. The
snmp-server traps mac-notification is not visible under ICL interface and no TRAPS are supported.
Manage VLANs using SNMP
The qBridgeMIB managed objects in Q-BRIDGE-MIB, dened in RFC 2674, allows you to use SNMP to manage VLANs.
Creating a VLAN
To create a VLAN, use the dot1qVlanStaticRowStatus object.
The snmpset operation shown in the following example creates VLAN 10 by specifying a value of 4 for instance 10 of the
dot1qVlanStaticRowStatus object.
Example of Creating a VLAN using SNMP
> snmpset -v2c -c mycommunity 123.45.6.78 .1.3.6.1.2.1.17.7.1.4.3.1.5.10 i 4
SNMPv2-SMI::mib-2.17.7.1.4.3.1.5.10 = INTEGER: 4
Assigning a VLAN Alias
Write a character string to the dot1qVlanStaticName object to assign a name to a VLAN.
Example of Assigning a VLAN Alias using SNMP
[Unix system output]
> snmpset -v2c -c mycommunity 10.11.131.185 .1.3.6.1.2.1.17.7.1.4.3.1.1.1107787786 s "My
VLAN"
SNMPv2-SMI::mib-2.17.7.1.4.3.1.1.1107787786 = STRING: "My VLAN"
[Dell system output]
DellEMC#show int vlan 10
Vlan 10 is down, line protocol is down
Vlan alias name is: My VLAN
Address is 00:01:e8:cc:cc:ce, Current address is 00:01:e8:cc:cc:ce
Interface index is 1107787786
Internet address is not set
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed auto
Displaying the Ports in a VLAN
Dell EMC Networking OS identies VLAN interfaces using an interface index number that is displayed in the output of the show
interface vlan
command.
Simple Network Management Protocol (SNMP)
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