Hello,
This is the new schema to get MAC addresses on each port of switchs:
1/ if switch is a Cisco
2/ get all ports not have LLDP/CDP informations
3/ if have 1 or more ports of 2/
4/ get all vlans associated to these ports
5/ if have 1 or more vlans
6/ we check on each vlan and add MAC found to the port
NOTE : to check for each vlan, open a secondary SNMP connection based
on vlan:
* for SNMP v1 and 2: community@vlanid
* for SNMP v3, add to end : context vlan-1 (the context can be found
on this oid .1.3.6.1.2.1.47.1.2.1.1.8)
7/ we be sure have unique mac
For the trunk ports, the point 4 will get 0 vlan for these ports, so we
can exclude them too in point 2/. In most cases, network administrators
use a unique vlan on a server and use vlan routage on the switches
instead use trunk on it. The trunk is used in most cases for link
between switches and so have le LLDP/CDP
David
++
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