Users Guide

Enabling and Disabling a Port using SNMP
To enable and disable a port using SNMP, use the following commands.
1 Create an SNMP community on the Dell system.
CONFIGURATION mode
snmp-server community
2 From the Dell EMC Networking system, identify the interface index of the port for which you want to change the admin status.
EXEC Privilege mode
show interface
Or, from the management system, use the snmpwwalk command to identify the interface index.
3 Enter the snmpset command to change the admin status using either the object descriptor or the OID.
snmpset with descriptor: snmpset -v version -c community agent-ip ifAdminStatus.ifindex i {1
| 2}
snmpset with OID: snmpset -v version -c community agent-ip .1.3.6.1.2.1.2.2.1.7.ifindex i {1
| 2}
Choose integer 1 to change the admin status to Up, or 2 to change the admin status to Down.
Fetch Dynamic MAC Entries using SNMP
Dell EMC Networking supports the RFC 1493 dot1d table for the default VLAN and the dot1q table for all other VLANs.
NOTE
: The 802.1q Q-BRIDGE MIB denes VLANs regarding 802.1d, as 802.1d itself does not dene them. As a switchport must
belong a VLAN (the default VLAN or a congured VLAN), all MAC address learned on a switchport are associated with a VLAN.
For this reason, the Q-Bridge MIB is used for MAC address query. Moreover, specic to MAC address query, the MAC address
indexes dot1dTpFdbTable only for a single forwarding database, while dot1qTpFdbTable has two indices — VLAN ID and MAC
address — to allow for multiple forwarding databases and considering that the same MAC address is learned on multiple VLANs.
The VLAN ID is added as the rst index so that MAC addresses are read by the VLAN, sorted lexicographically. The MAC address
is part of the OID instance, so in this case, lexicographic order is according to the most signicant octet.
Table 117. MIB Objects for Fetching Dynamic MAC Entries in the Forwarding Database
MIB Object OID MIB Description
dot1dTpFdbTable .1.3.6.1.2.1.17.4.3 Q-BRIDGE MIB List the learned unicast MAC
addresses on the default VLAN.
dot1qTpFdbTable .1.3.6.1.2.1.17.7.1.2. 2 Q-BRIDGE MIB List the learned unicast MAC
addresses on non-default
VLANs.
dot3aCurAggFdb Table .1.3.6.1.4.1.6027.3.2. 1.1.5 F10-LINK-AGGREGATION -MIB List the learned MAC addresses
of aggregated links (LAG).
In the following example, R1 has one dynamic MAC address, learned o of port TenGigabitEthernet 1/21, which a member of the default
VLAN, VLAN 1. The SNMP walk returns the values for dot1dTpFdbAddress, dot1dTpFdbPort, and dot1dTpFdbStatus.
Each object comprises an OID concatenated with an instance number. In the case of these objects, the instance number is the decimal
equivalent of the MAC address; derive the instance number by converting each hex pair to its decimal equivalent. For example, the decimal
equivalent of E8 is 232, and so the instance number for MAC address 00:01:e8:06:95:ac is.0.1.232.6.149.172.
954
Simple Network Management Protocol (SNMP)