HH3C-RS485-MIB

All MIBs › HH3C-RS485-MIB

Organization: Hangzhou H3C Technologies Co., Ltd.

Last Updated: 2009-10-21

Category: Hardware and Environment, Network Interfaces, Vendor: H3C/HH3C

Description: HH3C MIB for RS-485 serial interface management on H3C devices with RS-485 console or sensor ports.

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What Is HH3C-RS485-MIB?

HH3C-RS485-MIB is an H3C MIB for managing RS-485 serial interfaces on H3C devices equipped with RS-485 ports, commonly used for console access or connecting external sensors/equipment. It exposes per-interface serial parameters (baud rate, data bits, parity, stop bits, flow control) as well as transmit/receive character and error counters, plus a raw session table for active serial sessions. Its monitoring value includes both configuration verification, confirming serial parameters match the attached equipment, and basic hardware/link-health monitoring via TX/RX error character counts, which can reveal a failing serial cable, connector, or mismatched line settings. It is a device-specific hardware-interface MIB not tied to a broader IETF standard, since RS-485 management isn't covered by common network MIBs. It is typically deployed on H3C devices that expose RS-485 ports for out-of-band console access or for integrating serial-based peripheral/environmental sensors, where an HH3C-RS485-MIB download helps confirm serial parameters and catch a failing cable or connector early.

IPNetwork Monitor allows you to monitor SNMP objects defined in HH3C-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

Monitoring Examples

An admin would poll hh3cRS485PropertiesTable to confirm hh3cRS485BaudRate, hh3cRS485DataBits, hh3cRS485Parity, and hh3cRS485StopBits match the expected configuration for an attached serial device, then check hh3cRS485TXErrCharacters and hh3cRS485RXErrCharacters for rising error counts. A steadily increasing hh3cRS485RXErrCharacters count alongside stable hh3cRS485RXCharacters would suggest a wiring, termination, or baud-rate mismatch problem on that RS-485 link. The hh3cRS485RawSessionSummary and hh3cRS485RawSessionNextIndex objects help track active raw serial sessions on the port.

What Can Be Monitored

RS-485 baud rate/parity/data bits configuration
TX/RX character counts
TX/RX error character counts
active raw serial sessions

Imported Objects

From HH3C-OID-MIB

hh3cCommon

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
hh3cRS485	1.3.6.1.4.1.25506.2.109			The objects in this MIB module are used to manage RS485 interfaces, and manage sessions on them.
hh3cRS485Properties	1.3.6.1.4.1.25506.2.109.1
hh3cRS485PropertiesTable	1.3.6.1.4.1.25506.2.109.1.1		not-accessible	Propertie table.
hh3cRS485PropertiesEntry	1.3.6.1.4.1.25506.2.109.1.1.1		not-accessible	Propertie entry.
I32 hh3cRS485RawSessionNextIndex	1.3.6.1.4.1.25506.2.109.1.1.1.1	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 hh3cRS485BaudRate	1.3.6.1.4.1.25506.2.109.1.1.1.2	INTEGER	read-write	The port's baud rate.
INT hh3cRS485DataBits	1.3.6.1.4.1.25506.2.109.1.1.1.3	INTEGER	read-write	The port's number of data bits in a character.
INT hh3cRS485Parity	1.3.6.1.4.1.25506.2.109.1.1.1.4	INTEGER	read-write	The port's sense of a character parity bit.
INT hh3cRS485StopBits	1.3.6.1.4.1.25506.2.109.1.1.1.5	INTEGER	read-write	The port's number of stop bits.
INT hh3cRS485FlowControl	1.3.6.1.4.1.25506.2.109.1.1.1.6	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 hh3cRS485TXCharacters	1.3.6.1.4.1.25506.2.109.1.1.1.7	Integer32	read-only	The number of output characters for the port.
I32 hh3cRS485RXCharacters	1.3.6.1.4.1.25506.2.109.1.1.1.8	Integer32	read-only	The number of input characters for the port.
I32 hh3cRS485TXErrCharacters	1.3.6.1.4.1.25506.2.109.1.1.1.9	Integer32	read-only	The number of output error characters for the port.
I32 hh3cRS485RXErrCharacters	1.3.6.1.4.1.25506.2.109.1.1.1.10	Integer32	read-only	The number of input error characters for the port.
INT hh3cRS485ResetCharacters	1.3.6.1.4.1.25506.2.109.1.1.1.11	INTEGER	read-write	Reset the counters to zero, inlucding hh3cRS485TXCharacters, hh3cRS485RXCharacters, hh3cRS485TXErrCharacters and hh3cRS485RXErrCharacters.
hh3cRS485RawSessions	1.3.6.1.4.1.25506.2.109.2
hh3cRS485RawSessionSummary	1.3.6.1.4.1.25506.2.109.2.1
I32 hh3cRS485RawSessionMaxNum	1.3.6.1.4.1.25506.2.109.2.1.1	Integer32	read-only	The max number of raw sessions what we can support.
hh3cRS485RawSessionTable	1.3.6.1.4.1.25506.2.109.2.2		not-accessible	RS485 raw session table. Data recieved from rs485 will be sent to the destination by raw sockets.
hh3cRS485RawSessionEntry	1.3.6.1.4.1.25506.2.109.2.2.1		not-accessible	Parameters of a session, including remote IP address, remote port, local port, and so on.
I32 hh3cRS485SessionIndex	1.3.6.1.4.1.25506.2.109.2.2.1.1	Integer32	not-accessible	Raw session index.
INT hh3cRS485SessionType	1.3.6.1.4.1.25506.2.109.2.2.1.2	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 hh3cRS485SessionAddType	1.3.6.1.4.1.25506.2.109.2.2.1.3	InetAddressType	read-write	This object indicates the transport type of the address contained in hh3cRS485SessionRemoteIP object.
IP hh3cRS485SessionRemoteIP	1.3.6.1.4.1.25506.2.109.2.2.1.4	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 hh3cRS485SessionRemotePort	1.3.6.1.4.1.25506.2.109.2.2.1.5	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 hh3cRS485SessionLocalPort	1.3.6.1.4.1.25506.2.109.2.2.1.6	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 hh3cRS485SessionStatus	1.3.6.1.4.1.25506.2.109.2.2.1.7	RowStatus	read-create	The status column used for creating, modifying, and deleting instances of the columnar objects in raw session table.
hh3cRS485RawSessionErrInfoTable	1.3.6.1.4.1.25506.2.109.2.3		not-accessible	Error infomation table. It is fail to create a session, management station can get infomation from this table.
hh3cRS485RawSessionErrInfoEntry	1.3.6.1.4.1.25506.2.109.2.3.1		not-accessible	Error infomaition.
STR hh3cRS485RawSessionErrInfo	1.3.6.1.4.1.25506.2.109.2.3.1.1	DisplayString	read-only	Error infomation string. When a response with 'noCreeation' for row creation in table hh3cRS485RawSessionTable, the management station should display this string to users, thus users can konw the reason.

RFC description

RS485 serial interface management including port properties and session configuration.

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Download HH3C-RS485-MIB

What Is HH3C-RS485-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description