D-Link DGS-3700 Series Reference Manual page 71

DGS-3700 Series Layer 2 Managed Gigabit Ethernet Switch CLI Reference Guide
7. The user can manually configure a CaS to become a CS
8. 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-3700 Series switches
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 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 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 Upgrade to v1.6
To better improve SIM management, the DGS-3700 Series has been upgraded to version 1.6 in this release.
Many improvements have been made, including:
The Commander Switch (CS) now has the capability to automatically rediscover member switches that have
left the SIM group, either through a reboot or web malfunction. This feature is accomplished through the use
of Discover packets and Maintain packets that previously set SIM members will emit after a reboot. Once a
MS has had its MAC address and password saved to the CS's database, if a reboot occurs in the MS, the CS
will keep this MS information in its database and when a MS has been rediscovered, it will add the MS back
into the SIM tree automatically. No configuration will be necessary to rediscover these switches. There are
some instances where pre-saved MS switches cannot be rediscovered. For example, if the Switch is still
powered down, if it has become the member of another group, or if it has been configured to be a
Commander Switch, the rediscovery process cannot occur.
This version will support multiple switch upload and downloads for firmware, configuration files and log
files, as follows:
• Firmware – The switch now supports multiple MS firmware downloads from a TFTP server.
• Configuration Files – This switch now supports multiple downloading and uploading of
configuration files both to (for configuration restoration) and from (for configuration backup) MS's,
using a TFTP server..
• Log – The switch now supports uploading multiple MS log files to a TFTP server.
NOTE: For more details regarding improvements made in SIMv1.6, please refer to the
White Paper located on the D-Link website.
The SIM commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters)
in the following table.
C P
OMMAND
enable sim
disable sim
show sim
reconfig
config sim_group
config sim
ARAMETERS
{[candidates { <candidate_id 1-100> } | members{ <member_id 1-32> } | group
{commander_mac <macaddr>} | neighbor]}
[member_id <value 1-32> | exit]
[add <candidate_id 1-100> {<password>} | delete <member_id 1-32>]
[[commander { group_name <groupname 64>}|candidate]| dp_interval <sec 30-90> |
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