Administrator Guide
In the following example, TenGigabitEthernet 0/7 is moved to VLAN 1000, a non-default VLAN. To fetch the
MAC addresses learned on non-default VLANs, use the object dot1qTpFdbTable. The instance number is the
VLAN number concatenated with the decimal conversion of the MAC address.
-----------------------------MAC Addresses on Dell Networking
System-------------------------------
Dell#show mac-address-table
VlanId Mac Address Type Interface State
1000 00:01:e8:06:95:ac Dynamic Tengig 0/7 Active
---------------Query from Management Station----------------
>snmpwalk -v 2c -c techpubs 10.11.131.162 .1.3.6.1.2.1.17.7.1.2.2.1
Example of Fetching MAC Addresses Learned on a Port-Channel
Use dot3aCurAggFdbTable to fetch the learned MAC address of a port-channel. The instance number is the
decimal conversion of the MAC address concatenated with the port-channel number.
-----------------------------MAC Addresses on Dell Networking
System-------------------------------
Dell(conf)#do show mac-address-table
VlanId Mac Address Type Interface State
1000 00:01:e8:06:95:ac Dynamic Po 1 Active
-------------Query from Management Station----------------------
>snmpwalk -v 2c -c techpubs 10.11.131.162 .1.3.6.1.4.1.6027.3.2.1.1.5
SNMPv2-SMI::enterprises.6027.3.2.1.1.5.1.1.1000.0.1.232.6.149.172.1 = INTEGER: 1000
SNMPv2-SMI::enterprises.6027.3.2.1.1.5.1.2.1000.0.1.232.6.149.172.1 = Hex-STRING:
00 01 E8
06 95 AC
SNMPv2-SMI::enterprises.6027.3.2.1.1.5.1.3.1000.0.1.232.6.149.172.1 = INTEGER: 1
SNMPv2-SMI::enterprises.6027.3.2.1.1.5.1.4.1000.0.1.232.6.149.172.1 = INTEGER: 1
Deriving Interface Indices
The Dell Networking OS assigns an interface number to each (configured or unconfigured) physical and
logical interface. Display the interface index number using the show interfacecommand from EXEC
Privilege mode, as shown in the following example.
The interface index is a binary number with bits that indicate the slot number, port number, interface type,
and card type of the interface. The Dell Networking OS converts this binary index number to decimal, and
displays it in the output of the show interface command.
Starting from the least significant bit (LSB):
• the first 14 bits represent the card type
• the next 4 bits represent the interface type
• the next 7 bits represent the port number
• the next 5 bits represent the slot number
• the next 1 bit is 0 for a physical interface and 1 for a logical interface
• the next 1 bit is unused
For example, the index 44634369 is 10101010010001000100000001 in binary. The binary interface index for
TenGigabitEthernet 0/4 of an Aggregator. Notice that the physical/logical bit and the final, unused bit are not
given. The interface is physical, so this must be represented by a 0 bit, and the unused bit is always 0. These
two bits are not given because they are the most significant bits, and leading zeros are often omitted.
For interface indexing, slot and port numbering begins with binary one. If the Dell Networking system begins
slot and port numbering from 0, binary 1 represents slot and port 0. In the Aggregator the first interface is 0/1
Simple Network Management Protocol (SNMP) 845