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‘Out-of-Band’ connection, meaning that console is
connected to the switch using a different circuit than
that used for normal network communications. So, the
console can be used to set up and manage the switch
even if the network is down.
Local console management uses the terminal
connection to operate the console program built-in to
the switch. A network administrator can manage,
control and monitor the switch from the console
program.
The VH-2402-L3 contains a CPU, memory for data
storage, flash memory for configuration data,
operational programs, and SNMP agent firmware.
These components allow the switch to be actively
managed and monitored from either the console port or
the network itself (out-of-band, or in-band).
SNMP Management
The Simple Network Management Protocol (SNMP) is
an OSI layer 7 (the application layer) protocol for
remotely monitoring and configuring network devices.
SNMP enables network management stations to read
and modify the settings of gateways, routers, switches,
and other network devices. SNMP can be used to
perform many of the same functions as a directly
connected console, or can be used within an integrated
network management software package such as
NetSight.
Flow Control
The VH-2402-L3 supports flow control (back pressure
handling) on a per-port basis. The limit at which
flow control is applied to a port is based on the
amount of memory used by the packets on an input
port. The limit is 9.6 kb and whenever this limit is
reached, flow control is applied: