Dell PowerEdge FX2 Dell PowerEdge FN I/O Aggregator Configuration Guide 9.6(0 - Page 183
Deriving Interface Indices, Example of Fetching Dynamic MAC Addresses on a Non-default VLANs
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>snmpwalk -v 2c -c techpubs 10.11.131.162 .1.3.6.1.2.1.17.4.3.1 SNMPv2-SMI::mib-2.17.4.3.1.1.0.1.232.6.149.172 = Hex-STRING: 00 01 E8 06 95 AC Example of Fetching Dynamic MAC Addresses on a Non-default VLANs 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 Simple Network Management Protocol (SNMP) 183