A3COM-HUAWEI-RS485-MIB

All MIBs › A3COM-HUAWEI-RS485-MIB

Organization: Hangzhou H3C Technologies Co., Ltd.

Last Updated: 2009-10-21

Category: Network Interfaces, Vendor: H3C/HH3C

Description: Manages RS-485 serial interface configuration on H3C/3Com devices, providing baud rate, data bits, parity, and flow control settings for serial ports.

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What Is A3COM-HUAWEI-RS485-MIB?

The A3COM-HUAWEI-RS485-MIB manages RS-485 serial interfaces on H3C/3Com devices, covering physical-layer serial parameters such as baud rate, data bits, parity, stop bits, and flow control, along with session-level counters for raw serial sessions carried over those interfaces. It exposes both configuration data and hardware/traffic counters such as transmitted/received character counts and error character counts. Its monitoring value is explicitly hardware-health-oriented, since h3cRS485TXErrCharacters and h3cRS485RXErrCharacters reveal serial-line signal integrity problems such as cabling faults, electrical noise, or a wrong baud rate on the physical RS-485 bus, often used to connect environmental sensors or auxiliary hardware to a networking device. There is no strong dependency on other standard MIBs, as RS-485 is a device-local serial-port feature. It is deployed on H3C devices with auxiliary serial ports used to interface with legacy serial equipment such as sensors, modems, or console/monitoring hardware. Engineers can download the A3COM-HUAWEI-RS485-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in A3COM-HUAWEI-RS485-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

H3C device with RS-485 serial port (switch/router with auxiliary serial interface)

Monitoring Examples

An admin polls h3cRS485PropertiesTable/h3cRS485PropertiesEntry to confirm the configured h3cRS485BaudRate, h3cRS485DataBits, and h3cRS485Parity match the attached serial device, then watches h3cRS485RXErrCharacters for a rising count that would indicate a baud-rate mismatch or noisy cable. Tracking h3cRS485TXCharacters versus h3cRS485RXCharacters across h3cRS485RawSessions helps confirm whether a serial session is actively exchanging data or has gone silent.

What Can Be Monitored

RS-485 baud rate/parity/flow-control configuration
transmitted and received character counts
TX/RX error character counts
raw serial session status

Imported Objects

From A3COM-HUAWEI-OID-MIB

h3cCommon

OBJECT-IDENTITY

From IF-MIB

ifIndex

OBJECT-TYPE

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
RowStatus

OIDs

OID symbolic	OID numeric	Type	Access	Description
h3cRS485	1.3.6.1.4.1.43.45.1.10.2.109			The objects in this MIB module are used to manage RS485 interfaces, and manage sessions on them.
h3cRS485Properties	1.3.6.1.4.1.43.45.1.10.2.109.1
h3cRS485PropertiesTable	1.3.6.1.4.1.43.45.1.10.2.109.1.1		not-accessible	Propertie table.
h3cRS485PropertiesEntry	1.3.6.1.4.1.43.45.1.10.2.109.1.1.1		not-accessible	Propertie entry.
I32 h3cRS485RawSessionNextIndex	1.3.6.1.4.1.43.45.1.10.2.109.1.1.1.1	Integer32	read-only	The next valid index of raw sessions, from 1 to 64, which session has been created. When there is no valid index left, it will return 0.
INT h3cRS485BaudRate	1.3.6.1.4.1.43.45.1.10.2.109.1.1.1.2	INTEGER	read-write	The port's baud rate.
INT h3cRS485DataBits	1.3.6.1.4.1.43.45.1.10.2.109.1.1.1.3	INTEGER	read-write	The port's number of data bits in a character.
INT h3cRS485Parity	1.3.6.1.4.1.43.45.1.10.2.109.1.1.1.4	INTEGER	read-write	The port's sense of a character parity bit.
INT h3cRS485StopBits	1.3.6.1.4.1.43.45.1.10.2.109.1.1.1.5	INTEGER	read-write	The port's number of stop bits.
INT h3cRS485FlowControl	1.3.6.1.4.1.43.45.1.10.2.109.1.1.1.6	INTEGER	read-write	The port's type of input flow control. 'none' indicates no flow control at this level. 'hardware' indicates use of hardware signals. 'xonOrxoff' indicates use of software function.
I32 h3cRS485TXCharacters	1.3.6.1.4.1.43.45.1.10.2.109.1.1.1.7	Integer32	read-only	The number of output characters for the port.
I32 h3cRS485RXCharacters	1.3.6.1.4.1.43.45.1.10.2.109.1.1.1.8	Integer32	read-only	The number of input characters for the port.
I32 h3cRS485TXErrCharacters	1.3.6.1.4.1.43.45.1.10.2.109.1.1.1.9	Integer32	read-only	The number of output error characters for the port.
I32 h3cRS485RXErrCharacters	1.3.6.1.4.1.43.45.1.10.2.109.1.1.1.10	Integer32	read-only	The number of input error characters for the port.
INT h3cRS485ResetCharacters	1.3.6.1.4.1.43.45.1.10.2.109.1.1.1.11	INTEGER	read-write	Reset the counters to zero, inlucding h3cRS485TXCharacters, h3cRS485RXCharacters, h3cRS485TXErrCharacters and h3cRS485RXErrCharacters.
h3cRS485RawSessions	1.3.6.1.4.1.43.45.1.10.2.109.2
h3cRS485RawSessionSummary	1.3.6.1.4.1.43.45.1.10.2.109.2.1
I32 h3cRS485RawSessionMaxNum	1.3.6.1.4.1.43.45.1.10.2.109.2.1.1	Integer32	read-only	The max number of raw sessions what we can support.
h3cRS485RawSessionTable	1.3.6.1.4.1.43.45.1.10.2.109.2.2		not-accessible	RS485 raw session table. Data recieved from rs485 will be sent to the destination by raw sockets.
h3cRS485RawSessionEntry	1.3.6.1.4.1.43.45.1.10.2.109.2.2.1		not-accessible	Parameters of a session, including remote IP address, remote port, local port, and so on.
I32 h3cRS485SessionIndex	1.3.6.1.4.1.43.45.1.10.2.109.2.2.1.1	Integer32	not-accessible	Raw session index.
INT h3cRS485SessionType	1.3.6.1.4.1.43.45.1.10.2.109.2.2.1.2	INTEGER	read-write	The type of a session. A session can use UDP socket, TCP socket as a client, or TCP socket as a server.
IPt h3cRS485SessionAddType	1.3.6.1.4.1.43.45.1.10.2.109.2.2.1.3	InetAddressType	read-write	This object indicates the transport type of the address contained in h3cRS485SessionRemoteIP object.
IP h3cRS485SessionRemoteIP	1.3.6.1.4.1.43.45.1.10.2.109.2.2.1.4	InetAddress	read-create	The IP of remote entry. When session type is 'udp', this is the IP of the peer. When session type is 'tcpClient', this is the IP of the server . When session type is 'tcpServer', this is invalid, it will return 0.
I32 h3cRS485SessionRemotePort	1.3.6.1.4.1.43.45.1.10.2.109.2.2.1.5	Integer32	read-create	The port of remote entry. When session type is 'udp', this is port of the peer. When session type is 'tcpClient', this is the port of the server. When session type is 'tcpServer', this is invalid, it will return 0.
I32 h3cRS485SessionLocalPort	1.3.6.1.4.1.43.45.1.10.2.109.2.2.1.6	Integer32	read-create	Local socket port. When session type is 'udp', this is local UDP socket port. When session type is 'tcpClient', this is invalid, it will return 0. When session type is 'tcpServer', this is the local port which will be listened.
ROW h3cRS485SessionStatus	1.3.6.1.4.1.43.45.1.10.2.109.2.2.1.7	RowStatus	read-create	The status column used for creating, modifying, and deleting instances of the columnar objects in raw session table.
h3cRS485RawSessionErrInfoTable	1.3.6.1.4.1.43.45.1.10.2.109.2.3		not-accessible	Error infomation table. It is fail to create a session, management station can get infomation from this table.
h3cRS485RawSessionErrInfoEntry	1.3.6.1.4.1.43.45.1.10.2.109.2.3.1		not-accessible	Error infomaition.
STR h3cRS485RawSessionErrInfo	1.3.6.1.4.1.43.45.1.10.2.109.2.3.1.1	DisplayString	read-only	Error infomation string. When a response with 'noCreeation' for row creation in table h3cRS485RawSessionTable, the management station should display this string to users, thus users can konw the reason.

RFC description

H3C RS485 serial interface management MIB. Manages RS485 session configuration including baud rate, parity, and flow control.

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Download A3COM-HUAWEI-RS485-MIB

What Is A3COM-HUAWEI-RS485-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description