Single Ip Settings - D-Link xStack Reference Manual

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xStack DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch Web UI Reference Guide
8. SIM allows intermediate devices that do not support SIM. This enables the user to manage switches 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 Switch 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 command 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 Single 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 of the Switch 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.
It is connected to the CS through the CS management VLAN
The following rules also apply to the above roles:
1. Each device begins in a Candidate state.
2. CSs 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 DGS-3620 Series switches may join
the group by manually configuring the Switch to be a MS. The CS will then serve as the in band entry point for
access to the MS. The CS's IP address will become the path to all MS's of the group and the CS's Administrator's
password, and/or authentication will control access to all MS's of the SIM group.
With SIM enabled, the applications in the CS will redirect the packet instead of executing the packets. The
applications will decode the packet from the administrator, modify some data, and then send it to the MS. After
execution, the CS may receive a response packet from the MS, which it will encode and send it back to the
administrator.
When a CaS becomes a MS, it automatically becomes a member of the first SNMP community (includes read/write
and read only) to which the CS belongs. However, if a MS has its own IP address, it can belong to SNMP
communities to which itself belongs to.

Single IP Settings

The Switch is set as a Candidate (CaS) as the factory default configuration and Single IP Management is disabled.
To view the following window, click Management > Single IP Management > Single IP Settings, as shown below:
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