Dell PowerEdge FX2/FX2s - Manual (Page 181)

To display the ports in a VLAN, send an snmpget request for the object dot1qStaticEgressPorts using the
interface index as the instance number, as shown in the following example.
Example of Viewing the Ports in a VLAN in SNMP
snmpget -v2c -c mycommunity 10.11.131.185 .1.3.6.1.2.1.17.7.1.4.3.1.2.1107787786
SNMPv2-SMI::mib-2.17.7.1.4.3.1.2.1107787786 = Hex-STRING:
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
The table that the Dell Networking system sends in response to the snmpget request is a table that
contains hexadecimal (hex) pairs, each pair representing a group of eight ports.
• Seven hex pairs represent a stack unit. Seven pairs accommodate the greatest number of ports
available on an Aggregator, 12 ports. The last stack unit is assigned eight pairs, the eight pair is unused.
The first hex pair, 00 in the previous example, represents ports 1 to 7 in Stack Unit 0. The next pair to the
right represents ports 8 to 15. To resolve the hex pair into a representation of the individual ports, convert
the hex pair to binary. Consider the first hex pair 00, which resolves to 0000 0000 in binary:
• Each position in the 8-character string is for one port, starting with Port 1 at the left end of the string,
and ending with Port 8 at the right end. A 0 indicates that the port is not a member of the VLAN; a 1
indicates VLAN membership.
All hex pairs are 00, indicating that no ports are assigned to VLAN 10. In the following example, Port 0/2 is
added to VLAN 10 as untagged; the first hex pair changes from 00 to 04.
Example of Viewing VLAN Ports Using SNMP (Port Assigned)
R5(conf)#do show vlan id 10
Codes: * - Default VLAN, G - GVRP VLANs
Q: U - Untagged, T - Tagged
x - Dot1x untagged, X - Dot1x tagged
G - GVRP tagged, M - Vlan-stack
NUM Status Description Q Ports
10 Inactive U TenGi 0/2
[Unix system output]
> snmpget -v2c -c mycommunity 10.11.131.185 .
1.3.6.1.2.1.17.7.1.4.3.1.2.1107787786
SNMPv2-SMI::mib-2.17.7.1.4.3.1.2.1107787786 = Hex-STRING: 40 00 00 00 00 00 00
00 00 00 00
The value 40 is in the first set of 7 hex pairs, indicating that these ports are in Stack Unit 0. The hex value
40 is 0100 0000 in binary. As described, the left-most position in the string represents Port 1. The next
position from the left represents Port 2 and has a value of 1, indicating that Port 0/2 is in VLAN 10. The
remaining positions are 0, so those ports are not in the VLAN.
Simple Network Management Protocol (SNMP) 181