D-Link Single Ip Management Commands - D-Link xstack DGS-3612G Instruction Manual

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
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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
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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).
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All switches in a particular SIM group must be in the same IP subnet (broadcast domain). Members of a SIM group cannot
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cross a router.
A SIM group accepts up to 32 switches (numbered 1-32), including the Commander Switch (numbered 1).
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There is no limit to the number of SIM groups in the same IP subnet (broadcast domain), however a single switch can only
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belong to one group.
If multiple VLANs are configured, the SIM group will only utilize the default VLAN on any switch.
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SIM allows intermediate devices that do not support SIM. This enables the user to manage a switch that is more than one
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hop away from the CS.
The SIM group is a group of switches that are managed as a single entity. The DGS-3612G 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.
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It is not a Commander Switch or Member Switch of another Single IP group.
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It is connected to the Member Switches through its management VLAN.
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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.
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It is connected to the CS through the CS management VLAN.
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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 DGS-3612G, 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.
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It is connected to the CS through the CS management VLAN.
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The following rules also apply to the above roles:
1. Each device begins in the Candidate state.
2. CS's must change their role to CaS and then to MS, to become a MS of a SIM group. Thus the CS cannot directly be converted
to a MS.
3. The user can manually configure a CS to become a CaS.
4. A MS can become a CaS by:
a. Being configured as a CaS through the CS.
b. If report packets from the CS to the MS time out.
5. The user can manually configure a CaS to become a CS
6. The CaS can be configured through the CS to become a MS.
After configuring one switch to operate as the CS of a SIM group, additional the xStack DGS-3612G may join the group by either an
automatic method or by manually configuring the Switch to be a MS. The CS will then serve as the in band entry point for access to
xStack DGS-3612G Layer 3 Gigabit Ethernet Managed Switch CLI Manual
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