xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch CLI Manual
298
43
D-Link Single IP Management Commands
Simply put, D-Link Single IP Management is a concept that will stack switches together over
Ethernet instead of using stacking ports or modules. Switches using D-Link Single IP Management
(labeled here as SIM) must conform to the following rules:
•
SIM is an optional feature on the Switch and can easily be enabled or disabled. SIM grouping
has no effect on the normal operation of the Switch in the user’s network.
•
There are three classifications for switches using SIM. The Commander Switch(CS), which is
the master switch of the group, Member Switch(MS), which is a switch that is recognized by the
CS a member of a SIM group, and a Candidate Switch(CaS), which is a switch that has a
physical link to the SIM group but has not been recognized by the CS as a member of the SIM
group.
•
A SIM group can only have one Commander Switch(CS).
•
All switches in a particular SIM group must be in the same IP subnet (broadcast domain).
Members of a SIM group cannot cross a router.
•
A SIM group accepts up to 32 switches (numbered 0-31), including the Commander Switch
(numbered 0).
•
There is no limit to the number of SIM groups in the same IP subnet (broadcast domain),
however a single switch can only belong to one group.
•
If multiple VLANs are configured, the SIM group will only utilize the default VLAN on any
switch.
•
SIM allows intermediate devices that do not support SIM. This enables the user to manage a
switch that are more than one hop away from the CS.
The SIM group is a group of switches that are managed as a single entity. The DES 3800 Series may take
on three different roles:
Commander Switch(CS)
– This is a switch that has been manually configured as the controlling device
for a group, and takes on the following characteristics:
•
It has an IP Address.
•
It is not a Commander Switch or Member Switch of another Single IP group.
•
It is connected to the Member Switches through its management VLAN.
Member Switch(MS)
– This is a switch that has joined a single IP group and is accessible from the CS,
and it takes on the following characteristics:
•
It is not a CS or MS of another IP group.
•
It is connected to the CS through the CS management VLAN.
Candidate Switch(CaS)
– This is a switch that is ready to join a SIM group but is not yet a member of
the SIM group. The Candidate Switch may join the SIM group through an automatic function of the DES-
3828, or by manually configuring it to be a MS of a SIM group. A switch configured as a CaS is not a
member of a SIM group and will take on the following characteristics:
•
It is not a CS or MS of another Single IP group.
