Concept Guide

• If a port is congured in a VLAN, the respective bit for that port will be set to 1 in the specic VLAN.
• In the aggregator, all the server ports and uplink LAG 128 will be in switchport. Hence, the respective bits are set to 1.
The following output is for the default VLAN.
Example of dot1qVlanCurrentUntaggedPorts output
snmpwalk -Os -c public -v 1 10.16.151.151 1.3.6.1.2.1.17.7.1.4.2.1.5
mib-2.17.7.1.4.2.1.5.0.1107525633 = Hex-STRING:
FF FF FF FF 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 00 00 00 00 00
01 00
The last byte is free byte . The bit for LAGs starts from 43 byte. If server LAG 1 is created with server ports Te 0/6 and Te 0/7, the
respective bit for the ports are unset and the bit for LAG 1 is set in default VLAN. The corresponding output will be as follows:
snmpwalk -Os -c public -v 1 10.16.151.151 1.3.6.1.2.1.17.7.1.4.2.1.5
mib-2.17.7.1.4.2.1.5.0.1107525633 = Hex-STRING: F9 FF FF FF 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
80 00 00 00 00 00
00 00 00 00 00 00 00 00 00 01 00
In the above example, the 43rd byte is set to 80. The 43rd byte is for LAG IDs from 1 to 8. But, only one LAG po 1 is set as switch port.
Hence, the binary bits will be 10000000. If this converted to Hexadecimal, the value will be 80. Similarly, the rst byte for Te 0/1 to Te 0/8
server ports, as the 6th and 7th byte is removed from switch port, the respective bits are set to 0. In binary, the value is 11111001 and the
corresponding hex decimal value is F9.
In standalone mode, there are 4000 VLANs, by default. The SNMP output will display for all 4000 VLANs. To view a particular VLAN, issue
the snmp query with VLAN interface ID.
Dell#show interface vlan 1010 | grep “Interface index”
Interface index is 1107526642
Use the output of the above command in the snmp query.
snmpwalk -Os -c public -v 1 10.16.151.151 1.3.6.1.2.1.17.7.1.4.2.1.4.0.1107526642
mib-2.17.7.1.4.2.1.4.0.1107526642 = Hex-STRING: F9 FF FF FF 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
80 00 00 00 00 00
00 00 00 00 00 00 00 00 00 01 00
MIB Support to Display the Available Memory Size on
Flash
Dell Networking provides more MIB objects to display the available memory size on ash memory. The following table lists the MIB object
that contains the available memory size on ash memory.
Table 27. MIB Objects for Displaying the Available Memory Size on Flash via SNMP
MIB Object OID Description
chStackUnitFlashUsageUtil 1.3.6.1.4.1.6027.3.19.1.2.8.1.6 Contains ash memory usage in percentage.
The chStackUnitUtilTable MIB table contains the chStackUnitFlashUsageUtil MIB object which contains the ash memory usage percent.
Viewing the Available Flash Memory Size
228
Simple Network Management Protocol (SNMP)