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DES-3010F/G / DES-3018 / DES-3026 Fast Ethernet Switch Manual

After configuring one switch to operate as the CS of a SIM group, additional switches may join the group through a direct

connection to the Commander switch. Only the Commander switch will allow entry to the candidate switch enabled for

SIM. 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, 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 CS becomes a MS, it automatically becomes a member of the first SNMP community (include 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

other switches in the group, including the CS, do not belong.

The DES-3018 has limited functions when using SIM. It can only be configured to be a candidate switch and therefore has

no Commander role. For its role to be switched to Member switch, the Commander switch must first accept it into the SIM

group. Once accepted, its role will be changed to Member switch.

SIM Using the Web Interface

All switches are set as Candidate (CaS) switches as their factory default configuration and Single IP Management will be

disabled. To enable SIM for the Switch using the Web interface, go to the Single IP Management folder, located in the

Administration folder, and click the SIM Settings link, revealing the following window.

Figure 6- 27. SIM Settings window (disabled)

Change the SIM State to Enabled using the pull down menu and click Apply. The screen will then refresh and the SIM

Settings window will look like this:

Figure 6- 28. SIM Settings window (enabled)

The following parameters can be set:

Parameters Description

SIM State

Use the pull down menu to either enable or disable the SIM state on the Switch. Dis-

abled will render all SIM functions on the Switch inoperable.

Role State

Candidate - A Candidate Switch (CaS) is not the member of a SIM group but is

connected to a Commander Switch. This is the default setting for the SIM role.

Once the commander switch has accepted this Switch as a member of an SIM group,

this field will disappear.

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