Administrator Guide

-----------------------------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 1/21 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
SNMPv2-SMI::mib-2.17.7.1.2.2.1.2.
1000.0.1.232.6.149.172 = INTEGER: 118
SNMPv2-SMI::mib-2.17.7.1.2.2.1.3.1000.0.1.232.6.149.172 = INTEGER: 3
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 (congured or uncongured) physical and logical interface.
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 signicant bit (LSB):
• the rst 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 72925242 is 100010110001100000000111010 in binary. The binary interface index for GigabitEthernet 1/21 of a
48-port 10/100/1000Base-T line card with RJ-45 interface. Notice that the physical/logical bit and the nal, unused bit are not
given. The interface is physical, so represent this type of interface by a 0 bit, and the unused bit is always 0. These 2 bits are not
given because they are the most signicant bits, and leading zeros are often omitted.
NOTE: The interface index does not change if the interface reloads or fails over. If the unit is renumbered (for any
reason) the interface index changes during a reload.
To display the interface number, use the following command.
• Display the interface index number.
EXEC Privilege mode
show interface
756
Simple Network Management Protocol (SNMP)