XYLAN-PORT-MIB

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Category: Xylan OmniSwitch

Description: Manages Xylan OmniSwitch port configuration, operational status, speed, duplex, and VLAN assignments.

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What Is XYLAN-PORT-MIB?

XYLAN-PORT-MIB is a vendor-private MIB from Xylan (later part of Alcatel via the OmniSwitch line) that manages port-level configuration and status on Xylan OmniSwitch Ethernet switches. It exposes per-port objects covering administrative and operational status, negotiated speed and duplex mode, and VLAN membership assignments for each physical switch port. Setting up XYLAN-PORT-MIB SNMP monitoring typically starts with walking the per-port table to baseline operational status, speed, and duplex before layering VLAN-assignment checks on top. Its monitoring value centers on port/interface operational health and configuration rather than deep environmental sensors: tracking a port's operational status alongside its speed/duplex settings reveals cabling or auto-negotiation mismatches, while VLAN assignment objects let an operator audit whether a port is placed in the correct broadcast domain. It is meant to be used alongside standard IF-MIB interface objects and Xylan's other switch-specific MIBs (VLAN, spanning tree) for a complete picture of switch operation. It is deployed in enterprise network closets running legacy Xylan/Alcatel OmniSwitch Ethernet switches.

IPNetwork Monitor allows you to monitor SNMP objects defined in XYLAN-PORT-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

Xylan OmniSwitch Ethernet switch (legacy per-port configuration)

Monitoring Examples

An administrator would walk the port table to check each port's operational status alongside its negotiated speed and duplex mode, flagging a port stuck at half-duplex as a likely cabling or NIC mismatch. Cross-referencing the VLAN assignment for a given port would reveal if a device was accidentally placed in the wrong VLAN, causing connectivity issues. A port reporting down operational status while administratively enabled would indicate a physical layer fault needing attention.

What Can Be Monitored

port administrative and operational status
port speed and duplex mode
port VLAN assignment
port configuration

Imported Objects

From BRIDGE-MIB

MacAddress

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter

From RFC1213-MIB

DisplayString

From XYLAN-BASE-MIB

xylanVportArch

OBJECT-IDENTITY

OIDs

OID symbolic	OID numeric	Type	Access	Description
echannelPort	1.3.6.1.4.1.800.2.3.5
logicalPort	1.3.6.1.4.1.800.2.3.2
mesmConfEntry	1.3.6.1.4.1.800.2.3.3.2.1		not-accessible	A MESM Physical Port entry.
mesmConfTable	1.3.6.1.4.1.800.2.3.3.2		not-accessible	A list of MESM Physical Port instances.
INT mesmPortAutoDuplexMode	1.3.6.1.4.1.800.2.3.3.2.1.5	INTEGER	read-only	The automatically detected port duplex mode of this MESM port.
INT mesmPortAutoNegotiate	1.3.6.1.4.1.800.2.3.3.2.1.3	INTEGER	read-write	The current autonegotiate mode of this MESM port. This object decides if port line speed and duplex mode are controlled by the user or negotiated automatically.
INT mesmPortAutoSpeed	1.3.6.1.4.1.800.2.3.3.2.1.4	INTEGER	read-only	The automatically detected port line speed of this MESM port.
INT mesmPortCfgDuplexMode	1.3.6.1.4.1.800.2.3.3.2.1.7	INTEGER	read-write	The configured port duplex mode of this MESM port.
INT mesmPortCfgSpeed	1.3.6.1.4.1.800.2.3.3.2.1.6	INTEGER	read-write	The configured port line speed of this MESM port.
INT mesmPortIF	1.3.6.1.4.1.800.2.3.3.2.1.2	INTEGER	read-only	The on-board interface number for this MESM port.
INT mesmPortSlot	1.3.6.1.4.1.800.2.3.3.2.1.1	INTEGER	read-only	The physical slot number for this MESM port.
mirrorEntry	1.3.6.1.4.1.800.2.3.4.1.1		not-accessible	A Virtual Port entry.
XYL mirrorFuncType	1.3.6.1.4.1.800.2.3.4.1.1.4	XylanPortFuncCodes	read-only	The function for this Vport. ie. local, remote, atm.
INT mirrorFuncTypeInstance	1.3.6.1.4.1.800.2.3.4.1.1.5	INTEGER	read-only	The specific instance of this slot/IF/type. For 'most' interface types this will always be 1. The exception is an ATM connected port.
INT mirrorIF	1.3.6.1.4.1.800.2.3.4.1.1.3	INTEGER	read-only	The on-board interface number.
XYL mirrorMirroringFuncType	1.3.6.1.4.1.800.2.3.4.1.1.8	XylanPortFuncCodes	read-write	The function for this Vport. ie. local, remote, atm.
INT mirrorMirroringFuncTypeInstance	1.3.6.1.4.1.800.2.3.4.1.1.9	INTEGER	read-write	The specific instance of this slot/IF/type. For 'most' interface types this will always be 1. The exception is an ATM connected port.
INT mirrorMirroringIF	1.3.6.1.4.1.800.2.3.4.1.1.7	INTEGER	read-write	The on-board interface number or the mirroring port.
INT mirrorMirroringSlot	1.3.6.1.4.1.800.2.3.4.1.1.6	INTEGER	read-write	The physical slot number of the mirroring port.
INT mirrorNumber	1.3.6.1.4.1.800.2.3.4.1.1.1	INTEGER	read-only	A unique number identifies this Virtual Port instance within the physical OmniSwitch. This number is NOT meant for user consumption.
mirrorPort	1.3.6.1.4.1.800.2.3.4
INT mirrorSlot	1.3.6.1.4.1.800.2.3.4.1.1.2	INTEGER	read-only	The physical slot number for this port instance (mirror).
XYL mirrorStatus	1.3.6.1.4.1.800.2.3.4.1.1.10	XylanMirrorEnableCodes	read-write	Whether mirroring is enabled or disabled for this port. prior to enabling mirroring, or at the same time all other read write values in this table for the same row must be set to appropriate values, or defaults will be assumed.
mirrorTable	1.3.6.1.4.1.800.2.3.4.1		not-accessible	A list of Virtual Port instances.
XYL phyPortAdmStatus	1.3.6.1.4.1.800.2.3.3.1.1.5	XylanPhyPortAdminStatCodes	read-write	The administrative status of this port. The user can enable or disable this physical port.
STR phyPortDescription	1.3.6.1.4.1.800.2.3.3.1.1.4	DisplayString	read-write	A string to identify the instance of this port.
phyPortEntry	1.3.6.1.4.1.800.2.3.3.1.1		not-accessible	A Physical Port entry.
INT phyPortFddiAdmMode	1.3.6.1.4.1.800.2.3.3.1.1.20	INTEGER	read-write	The administrative mode of this FDDI port. The user can set this port to either station(2) of concentrator(3) mode. NOTE: this does not take effect until the SMT subsystem is restarted. Examine the phyPortFddiOpMode to see the current operational mode. The administrative mode will be invalid(1) for all but FDDI or CDDI boards.
INT phyPortFddiMacFlushMode	1.3.6.1.4.1.800.2.3.3.1.1.22	INTEGER	read-write	The current MAC address flush mode (only valid for FDDI ports of mode concentrator). This controls whether MAC addresses will be flushed if any PHY port disconnects are detected. The MAC address flush mode will be invalid(1) for all but FDDI or CDDI boards.
INT phyPortFddiOpMode	1.3.6.1.4.1.800.2.3.3.1.1.21	INTEGER	read-only	The current station Operational Mode of this FDDI port. The Operational Mode will be invalid(1) for all but FDDI or CDDI boards.
CTR phyPortFrameIns	1.3.6.1.4.1.800.2.3.3.1.1.7	Counter	read-only	The number of frames received from this port.
CTR phyPortFrameOuts	1.3.6.1.4.1.800.2.3.3.1.1.13	Counter	read-only	The number of frames transmitted from this port.
INT phyPortIF	1.3.6.1.4.1.800.2.3.3.1.1.2	INTEGER	read-only	The on-board interface number.
CTR phyPortInBufDiscs	1.3.6.1.4.1.800.2.3.3.1.1.11	Counter	read-only	The number of inbound frames discarded from this port due to receive queue overrun.
CTR phyPortInErrDiscs	1.3.6.1.4.1.800.2.3.3.1.1.12	Counter	read-only	The number of inbound frames discarded from this port due to error.
CTR phyPortInNUcastPkts	1.3.6.1.4.1.800.2.3.3.1.1.10	Counter	read-only	The total number of non-unicast packets received.
CTR phyPortInOctets	1.3.6.1.4.1.800.2.3.3.1.1.8	Counter	read-only	The total number of octets received from this port.
CTR phyPortInUcastPkts	1.3.6.1.4.1.800.2.3.3.1.1.9	Counter	read-only	The total number of subnetwork-unicast packets received.
XYL phyPortMediaType	1.3.6.1.4.1.800.2.3.3.1.1.3	XylanPhyPortTypeCodes	read-only	The device type of this physical port
XYL phyPortOperStatus	1.3.6.1.4.1.800.2.3.3.1.1.6	XylanPortOperStatCodes	read-only	The operational status of this port.
CTR phyPortOutBufDiscs	1.3.6.1.4.1.800.2.3.3.1.1.17	Counter	read-only	The number of outbound frames discarded from this port due to transmit queue overrun.
CTR phyPortOutErrDiscs	1.3.6.1.4.1.800.2.3.3.1.1.18	Counter	read-only	The number of outbound frames discarded from this port due to error.
CTR phyPortOutNUcastPkts	1.3.6.1.4.1.800.2.3.3.1.1.16	Counter	read-only	The total number of non-unicast packets transmitted.
CTR phyPortOutOctets	1.3.6.1.4.1.800.2.3.3.1.1.14	Counter	read-only	The total number of octets transmitted from this port.
CTR phyPortOutUcastPkts	1.3.6.1.4.1.800.2.3.3.1.1.15	Counter	read-only	The total number of subnetwork-unicast packets transmitted.
INT phyPortPCause	1.3.6.1.4.1.800.2.3.3.3	INTEGER	not-accessible	The cause for a port partitioning event. This object is not intended to be accessed directly. It is defined for use in port partitioning traps.
INT phyPortSlot	1.3.6.1.4.1.800.2.3.3.1.1.1	INTEGER	read-only	The physical slot number for this port.
phyPortTable	1.3.6.1.4.1.800.2.3.3.1		not-accessible	A list of Physical Port instances.
INT phyPortToInterface	1.3.6.1.4.1.800.2.3.3.1.1.19	INTEGER	read-only	The interface number which instantiates the MIB-2 'ifTable' for this physical port. It is calculated as 'phyPortSlot' multipled by 100 plus 'phyPortIF' for this physical port.
physicalPort	1.3.6.1.4.1.800.2.3.3
virtualPort	1.3.6.1.4.1.800.2.3.1
XYL vportAdmStatus	1.3.6.1.4.1.800.2.3.1.1.1.13	XylanVportAdminStatCodes	read-write	The administrative status of this port which the user can attach or detach during configuration. The attached port can also be switched to disable(1) or enable(2), or delete(3). create(4) and modify(5) are used ONLY for traps.
INT vportBrdgMode	1.3.6.1.4.1.800.2.3.1.1.1.10	INTEGER	read-write	If vportFuncType is either localBridge(1) or localOpSwitch(2) type, setting this field to autoSwitch(3), the default, will allow the port to switch between the localBridge(1) or localOpSwitch(2) mode. The forceBridge(4) mode will prevent the localBridge(1) mode to switch to localOpSwitch(2) mode even there is only one MAC address is detacted. The forceSwitch(5) mode prevents the localOpSwitch(2) mode to switch to localBridge(1) mode. The user would have to make sure no loop is formed in the network in this case. The default is autoSwitch(3).
INT vportBridgeProtocol	1.3.6.1.4.1.800.2.3.1.1.1.8	INTEGER	read-write	The type of bridge protocol supported for this service. The default rfor row creation is transparent(3).
STR vportDescription	1.3.6.1.4.1.800.2.3.1.1.1.12	DisplayString	read-write	A string to identify the instance of this port.
XYL vportEncapsulation	1.3.6.1.4.1.800.2.3.1.1.1.9	XylanVportEncapsulationCodes	read-write	The frame encapsulation translation to be used for this particular port. The value indicates the frame format required for the output interface. The default for row creation is default(2) the meaning of which is dependent on the media type of the port
vportEntry	1.3.6.1.4.1.800.2.3.1.1.1		not-accessible	A Virtual Port entry.
INT vportFloodLimit	1.3.6.1.4.1.800.2.3.1.1.1.27	INTEGER	read-write	The amount of flooded bandwidth in byte / second that may be transmitted on this port.
CTR vportFloodLimitDiscs	1.3.6.1.4.1.800.2.3.1.1.1.31	Counter	read-only	The number of outbound frames discarded from this port due to the flood limit being exceed.
CTR vportFrameIns	1.3.6.1.4.1.800.2.3.1.1.1.15	Counter	read-only	The number of frames received from this port.
CTR vportFrameOuts	1.3.6.1.4.1.800.2.3.1.1.1.21	Counter	read-only	The number of frames transmitted from this port.
XYL vportFuncType	1.3.6.1.4.1.800.2.3.1.1.1.4	XylanPortFuncCodes	read-write	The function for this vport. ie. local, remote, atm.
INT vportFuncTypeInstance	1.3.6.1.4.1.800.2.3.1.1.1.5	INTEGER	read-write	The specific instance of this slot/IF/type. For 'most' interface types this will always be 1. The exception is an ATM connected port.
INT vportIF	1.3.6.1.4.1.800.2.3.1.1.1.3	INTEGER	read-write	The on-board interface number.
INT vportIfIndex	1.3.6.1.4.1.800.2.3.1.1.1.32	INTEGER	read-only	The MIB-2 interface table 'ifIndex' assigned to this virtual port.
CTR vportInBufDiscs	1.3.6.1.4.1.800.2.3.1.1.1.19	Counter	read-only	The number of inbound frames discarded from this port due to receive queue overrun.
CTR vportInErrDiscs	1.3.6.1.4.1.800.2.3.1.1.1.20	Counter	read-only	The number of inbound frames discarded from this port due to error.
CTR vportInNUcastPkts	1.3.6.1.4.1.800.2.3.1.1.1.18	Counter	read-only	The total number of non-unicast packets received.
CTR vportInOctets	1.3.6.1.4.1.800.2.3.1.1.1.16	Counter	read-only	The total number of octets received from this port.
CTR vportInUcastPkts	1.3.6.1.4.1.800.2.3.1.1.1.17	Counter	read-only	The total number of subnetwork-unicast packets received.
MAC vportMACaddress	1.3.6.1.4.1.800.2.3.1.1.1.7	MacAddress	read-only	The MAC address represented by this Virtual Port. This value is returned upon row creation and attachment.
INT vportManualMode	1.3.6.1.4.1.800.2.3.1.1.1.29	INTEGER	read-write	This setting permits the user to manually set the spanning tree state of the given port. It is designed primarily for those virtual ports that can not utilize the IBM spanning tree algorithm. If set to the manual mode (ether manual_override_forwarding or manual_override_blockng), the IEEE or IBM spanning tree algorithm is disabled for the given port.
INT vportMVLANMembership	1.3.6.1.4.1.800.2.3.1.1.1.30	INTEGER	read-only	This object is a bit mask with each bit that is set indicating that the Multicast VLAN given by the bit position is active on this port.
INT vportNumber	1.3.6.1.4.1.800.2.3.1.1.1.1	INTEGER	read-write	A unique number identifies this Virtual Port instance within the physical OmniSwitch. This number is NOT meant for user consumption.
XYL vportOperStatus	1.3.6.1.4.1.800.2.3.1.1.1.14	XylanPortOperStatCodes	read-only	The operational status of this virtual port. This is called slot/if/type/instance???. Note that if the card is removed for this slot, the service will be marked as portDown(1). The chassis MIB will maintain the record of the card be absent....
CTR vportOutBufDiscs	1.3.6.1.4.1.800.2.3.1.1.1.25	Counter	read-only	The number of outbound frames discarded from this port due to transmit queue overrun.
CTR vportOutErrDiscs	1.3.6.1.4.1.800.2.3.1.1.1.26	Counter	read-only	The number of outbound frames discarded from this port due to error.
CTR vportOutNUcastPkts	1.3.6.1.4.1.800.2.3.1.1.1.24	Counter	read-only	The total number of non-unicast packets transmitted.
CTR vportOutOctets	1.3.6.1.4.1.800.2.3.1.1.1.22	Counter	read-only	The total number of octets transmitted from this port.
CTR vportOutUcastPkts	1.3.6.1.4.1.800.2.3.1.1.1.23	Counter	read-only	The total number of subnetwork-unicast packets transmitted.
INT vportSlot	1.3.6.1.4.1.800.2.3.1.1.1.2	INTEGER	read-write	The physical slot number for this port instance (vport).
vportSwitchDefaultEntry	1.3.6.1.4.1.800.2.3.1.3.2		not-accessible	A Virtual Port Switch Options entry.
INT vportSwitchDefaultIndex	1.3.6.1.4.1.800.2.3.1.3.2.1	INTEGER	read-write	The index selecting which media type default is to be configured/viewed.
XYL vportSwitchDefaultipEthertype	1.3.6.1.4.1.800.2.3.1.3.2.2	XylanVportTranslationCodes	read-write	A Virtual Port Switch translation option for IP Ethertype traffic.
XYL vportSwitchDefaultipSnap	1.3.6.1.4.1.800.2.3.1.3.2.3	XylanVportTranslationCodes	read-write	A Virtual Port Switch translation option for IP SNAP traffic.
XYL vportSwitchDefaultipxEthertype	1.3.6.1.4.1.800.2.3.1.3.2.4	XylanVportTranslationCodes	read-write	A Virtual Port Switch translation option for IPX Ethertype traffic.
XYL vportSwitchDefaultipxLlc	1.3.6.1.4.1.800.2.3.1.3.2.6	XylanVportTranslationCodes	read-write	A Virtual Port Switch translation option for IPX LLC traffic.
XYL vportSwitchDefaultipxProp	1.3.6.1.4.1.800.2.3.1.3.2.5	XylanVportTranslationCodes	read-write	A Virtual Port Switch translation option for IPX 802.3 traffic.
XYL vportSwitchDefaultipxSnap	1.3.6.1.4.1.800.2.3.1.3.2.7	XylanVportTranslationCodes	read-write	A Virtual Port Switch translation option for IPX SNAP traffic.
vportSwitchDefaultTable	1.3.6.1.4.1.800.2.3.1.3		not-accessible	A list of Media instances.
vportSwitchEntry	1.3.6.1.4.1.800.2.3.1.2.2		not-accessible	A Virtual Port Switch Options entry.
XYL vportSwitchFuncType	1.3.6.1.4.1.800.2.3.1.2.2.3	XylanPortFuncCodes	read-write	The function for this vport. ie. local, remote, atm.
INT vportSwitchFuncTypeInstance	1.3.6.1.4.1.800.2.3.1.2.2.4	INTEGER	read-write	The specific instance of this slot/IF/type. For 'most' interface types this will always be 1. The exception is an ATM connected port.
INT vportSwitchIF	1.3.6.1.4.1.800.2.3.1.2.2.2	INTEGER	read-write	The on-board interface number.
XYL vportSwitchipEthertype	1.3.6.1.4.1.800.2.3.1.2.2.5	XylanVportTranslationCodes	read-write	A Virtual Port Switch translation option for IP Ethertype traffic.
XYL vportSwitchipSnap	1.3.6.1.4.1.800.2.3.1.2.2.6	XylanVportTranslationCodes	read-write	A Virtual Port Switch translation option for IP SNAP traffic.
XYL vportSwitchipxEthertype	1.3.6.1.4.1.800.2.3.1.2.2.7	XylanVportTranslationCodes	read-write	A Virtual Port Switch translation option for IPX Ethertype traffic.
XYL vportSwitchipxLlc	1.3.6.1.4.1.800.2.3.1.2.2.9	XylanVportTranslationCodes	read-write	A Virtual Port Switch translation option for IPX 802.2 traffic.
XYL vportSwitchipxProp	1.3.6.1.4.1.800.2.3.1.2.2.8	XylanVportTranslationCodes	read-write	A Virtual Port Switch translation option for IPX 802.3 traffic.
XYL vportSwitchipxSnap	1.3.6.1.4.1.800.2.3.1.2.2.10	XylanVportTranslationCodes	read-write	A Virtual Port Switch translation option for IPX SNAP traffic.
INT vportSwitchSlot	1.3.6.1.4.1.800.2.3.1.2.2.1	INTEGER	read-write	The physical slot number for this port instance (vport).
vportSwitchTable	1.3.6.1.4.1.800.2.3.1.2		not-accessible	A list of Virtual Port instances.
INT vportSwitchTimer	1.3.6.1.4.1.800.2.3.1.1.1.11	INTEGER	read-write	The time out period for a Bridged port to convert to a switch optimized mode in seconds if vportBrdgMode is set to autoSwitch(1). Setting it to zero will cause automactic switching between the two modes immediately. The default is 60 seconds.
vportTable	1.3.6.1.4.1.800.2.3.1.1		not-accessible	A list of Virtual Port instances.
INT vportVLANMembership	1.3.6.1.4.1.800.2.3.1.1.1.28	INTEGER	read-only	This object is a bit mask with each bit that is set indicating that the VLAN given by the bit position is active on this port.
INT vportVlanNumber	1.3.6.1.4.1.800.2.3.1.1.1.6	INTEGER	read-write	The VLAN that this virtual port belongs to. The default for row creation is 1.

RFC description

Alcatel Internetworking enterprise-specific MIB defining virtual port management objects for network switches.

Start monitoring Xylan OmniSwitch Ethernet switch (per-port admin/oper status, speed/duplex, VLAN-membership config status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download XYLAN-PORT-MIB

What Is XYLAN-PORT-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description