CISCOSB-PHY-MIB

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Organization: Cisco Systems, Inc.

Last Updated: 2002-09-30

Category: Network Interfaces, Vendor: RADLAN/Cisco SB

Description: Manages Cisco Small Business PHY (physical layer) interface parameters including auto-negotiation.

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What Is CISCOSB-PHY-MIB?

CISCOSB-PHY-MIB is a Cisco Small Business private MIB used for testing Layer 1 (physical layer/PHY) interfaces on Cisco Small Business switches. It defines objects for configuring and retrieving results of PHY-level diagnostic tests, including test type, status, result, units, and alarm indications. Its monitoring purpose is squarely hardware health: it lets an operator initiate a physical-layer test on a port and read back whether the port's PHY hardware passed or failed, along with any alarm condition and timestamp, directly surfacing cabling or transceiver hardware faults at the physical layer. As a CISCOSB private testing MIB it works alongside the standard IF-MIB and Ethernet-like MIB for everyday interface statistics, adding a diagnostic layer on top. It is deployed on Cisco Small Business switches when technicians need to run built-in cable/PHY diagnostics to troubleshoot suspected physical-layer faults. Engineers can download the CISCOSB-PHY-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCOSB-PHY-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

Cisco Small Business switch

Monitoring Examples

A technician would write a test type into rlPhyTestSetTable/rlPhyTestSetType to initiate a PHY diagnostic on a given port, then poll rlPhyTestGetTable objects such as rlPhyTestGetStatus, rlPhyTestGetResult, and rlPhyTestGetAlarm to see the outcome. An rlPhyTestGetAlarm value indicating a fault combined with an abnormal rlPhyTestGetResult would reveal a bad cable segment or failing PHY transceiver on that port. rlPhyTestGetTimeStamp records when the last test was run, useful for correlating results with recent link-flap events.

What Can Be Monitored

PHY test type
PHY test status
PHY test result
PHY alarm condition
PHY test timestamp

Imported Objects

From CISCOSB-MIB

switch001

MODULE-IDENTITY

From IF-MIB

ifIndex

OBJECT-TYPE

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION
TimeStamp

OIDs

OID symbolic	OID numeric	Type	Access	Description
rlPhy	1.3.6.1.4.1.9.6.1.101.90			The MIB module describes the private MIB for testing Layer1 interfaces supported by CISCOSB's software and products.
rlPhyTest	1.3.6.1.4.1.9.6.1.101.90.1
rlPhyTestSetTable	1.3.6.1.4.1.9.6.1.101.90.1.1		not-accessible
rlPhyTestSetEntry	1.3.6.1.4.1.9.6.1.101.90.1.1.1		not-accessible	An entry containing objects for invoking tests on an interface.
RLP rlPhyTestSetType	1.3.6.1.4.1.9.6.1.101.90.1.1.1.1	RlPhyTestType	read-write	A control variable used to start operator initiated interface tests.1 indicates that no test has been initiated. Only operator initiated interface tests can be set to this variable.
rlPhyTestGetTable	1.3.6.1.4.1.9.6.1.101.90.1.2		not-accessible
rlPhyTestGetEntry	1.3.6.1.4.1.9.6.1.101.90.1.2.1		not-accessible	An entry containing results of tests on an interface.
RLP rlPhyTestGetType	1.3.6.1.4.1.9.6.1.101.90.1.2.1.1	RlPhyTestType	read-only	A control variable used to, 1 to indicate that this test can be done on the specified port, 2 to initiate the test whenever the user wishes
INT rlPhyTestGetStatus	1.3.6.1.4.1.9.6.1.101.90.1.2.1.2	INTEGER	read-only	This object contains the status of the most recently requested test for operator initiated tests or the value none(1) if no tests have been requested since the last reset. For non operator initiated tests the value is always none(1). Note that this facility provides no provision for saving the results of one test when starting another, as could be required if used by multiple managers concurrently.
INT rlPhyTestGetResult	1.3.6.1.4.1.9.6.1.101.90.1.2.1.3	INTEGER	read-only	This object holds the test result
INT rlPhyTestGetUnits	1.3.6.1.4.1.9.6.1.101.90.1.2.1.4	INTEGER	read-only	The test result unit of measure. The units can be standard unit or special units that are designed for special test. The alaskaPhyLength unit is design for the VCT diagnostic and its values are: less_than_50M(1), 50-80M(2), 80-110M(3), 110-140M(4), more_than_140M(5). The alaskaPhyStatus unit is design for the VCT diagnostic and its values are: 4_pair_cable(1), 2_pair_cable(2), no_cable(3), open_cable(4), short_cable(5), bad_cable(6), impedance_mismatch(7).
INT rlPhyTestGetAlarm	1.3.6.1.4.1.9.6.1.101.90.1.2.1.5	INTEGER	read-only	This object hold the Alarm for this Entry. only Test that have can have alarms use this field, other holds the Value notRelevant(1)
STR rlPhyTestGetTimeStamp	1.3.6.1.4.1.9.6.1.101.90.1.2.1.6	DisplayString	read-only	The time in string (formated DD-MMM-YYYY HH:MM:SS e.g 14-Apr-2002 10:33:31)

RFC description

Tests Layer 1 physical interfaces on Cisco Small Business switches including cable status and optical parameters.

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Download CISCOSB-PHY-MIB

What Is CISCOSB-PHY-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description