![](https://pdfstore-manualsonline.prod.a.ki/pdfasset/f/fa/ffa63819-0092-4e25-b43b-b3dd7442913c/ffa63819-0092-4e25-b43b-b3dd7442913c-bg12d.png)
xStack
®
DGS-3400 Series Layer 2 Gigabit Managed Switch CLI Manual
297
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 CaS 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.
Upgrade to v1.61
To better improve SIM management, the xStack
®
DGS–3400 series switches have been upgraded to version 1.61 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.
The SIM commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table.
Command Parameters
enable sim
disable sim
show sim {[candidates {<candidate_id 1–100>} | members {<member_id 1–32>} | group
{commander_mac <macaddr>} | neighbor]}
reconfig
[member_id <value 1–32> | exit]
config sim_group [add <candidate_id 1–100> {<password>} | delete <member_id 1–32>]
config sim [[commander {group_name <groupname 64>} | candidate] | dp_interval <sec 30–90> |
hold_time <sec 100–255>]
download sim_ms [firmware_from_tftp | configuration_from_tftp] <ipaddr> <path_filename> {[members
<mslist 1–32> | all]}
upload sim_ms [configuration_to_tftp | log_to_tftp] <ipaddr> <path_filename> {[members <mslist> | all]}
Each command is listed, in detail, in the following sections.
enable sim
Purpose Used to enable Single IP Management (SIM) on the Switch.
Syntax
enable sim
Description This command is used to enable SIM globally on the Switch. SIM features and functions
will not function properly unless this function is enabled.
Parameters None.
Restrictions Only Administrator and Operator-level users can issue this command.
Example usage:
To enable SIM on the Switch: