STN-VEI-MIB

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Organization: Spring Tide Networks

Last Updated: 2000-04-06

Category: IPsec / VPN, Spring Tide Networks

Description: Manages Spring Tide Networks virtual external interface configuration and associated routing parameters.

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What Is STN-VEI-MIB?

STN-VEI-MIB is a Spring Tide Networks proprietary MIB describing the Virtual Ethernet Interface (VEI) construct on Spring Tide's multi-service switching platforms (the company was acquired by Lucent Technologies in 1999). Based on its module description, it manages virtual interface objects layered over physical Ethernet, used for routing and per-subscriber or per-service traffic separation on carrier-class multi-service edge devices. No object or table names were provided in the source data for this MIB, so its precise monitoring granularity cannot be confirmed here beyond what the module description implies. Conceptually it would depend on and extend standard interface MIB conventions (IF-MIB-style ifIndex-based addressing) given the 'virtual interface' framing typical of this MIB era. It would have been deployed on Spring Tide Networks multi-service switches in carrier/service-provider edge networks in the late 1990s/early 2000s, a now largely legacy platform. Engineers can download the STN-VEI-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in STN-VEI-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

Spring Tide Networks multi-service switch (legacy)

Monitoring Examples

No sample objects were provided for this MIB, so no specific table or object names can be cited. Based only on the module description ('Virtual Ethernet Interface'), a plausible use would be polling per-virtual-interface operational status, analogous to standard ifTable entries, but this cannot be confirmed without the actual object definitions.

What Can Be Monitored

virtual Ethernet interface operational status (inferred)
virtual interface configuration/routing association (inferred)

Imported Objects

From IF-MIB

InterfaceIndex

From RFC1213-MIB

PhysAddress

From SNMPv2-CONF

MODULE-COMPLIANCE

From SNMPv2-SMI

Counter32
Gauge32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString

From SPRING-TIDE-NETWORKS-SMI

stnNotification

OBJECT-IDENTITY

From STN-ROUTER-MIB

stnRouterVEI

OBJECT-IDENTITY

How to Use in IPNetwork Monitor

Example using stnVeiL2NoFreeEndStations OID:

Select a Spring Tide Networks (Lucent) multi-service switch (Virtual Ethernet Interface config) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type stnVeiL2NoFreeEndStations into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The number of times that the VEI ran out of MAC address database entries when attempting to learn a new remote MAC address. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
stnVei	1.3.6.1.4.1.3551.2.7.1.6.1			This MIB module describes managed objects of Spring Tide Networks Virtual Ethernet Interface.
stnVeiObjects	1.3.6.1.4.1.3551.2.7.1.6.1.1
stnVeiL2Table	1.3.6.1.4.1.3551.2.7.1.6.1.1.1		not-accessible	A list of VEI L2 entries.
stnVeiL2Entry	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1		not-accessible	Entry contains information about a particular VEI L2.
NUM stnVeiL2IfIndex	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.1	InterfaceIndex	read-only	The ifIndex of the VEI Layer 2 Interface.
I32 stnVeiL2ViId	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.2	Integer32	read-only	The instance of the configuration record corresponding to this VEI.
STR stnVeiL2Name	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.3	DisplayString	read-only	The name configured for this VEI.
INT stnVeiL2Type	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.4	INTEGER	read-only	The type of virtual ethernet interface. An atmBridgeEnetV2 VEI implements Ethernet V2 PDUs encapsulated per RFC1483 over ATM AAL5. An atmBridgeEnetV2 VEI implements Ethernet 802.3 PDUs encapsulated per RFC1483 over ATM AAL5.
G32 stnVeiL2MacTtl	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.5	Gauge32	read-only	The approximate time, in seconds, that a learned MAC address will be considered in-use by the VcLink it originated on. Once this time has expired, the resources associated with the MAC database entry can be reclaimed for learning other MAC addresses if necessary.
INT stnVeiL2State	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.6	INTEGER	read-only	The current operational state of the VEI.
G32 stnVeiL2RegisteredLowerLinks	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.7	Gauge32	read-only	The current number of VCLinks registered with the VEI.
G32 stnVeiL2ActiveLowerLinks	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.8	Gauge32	read-only	The current number of VCLinks actively carrying traffic for this VEI.
C32 stnVeiL2NoFreeEndStationsEx	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.9	Counter32	read-only	The number of times that the VEI ran out of MAC address database entries when attempting to learn a new remote MAC address. This indicates that the total number of remote MACs allowed on the VEI is greater than the system limit of 4096 per VEI.
C32 stnVeiL2TxDestNotFound	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.10	Counter32	read-only	The number of outgoing packets that were dropped because the VEI could not find a MAC address database entry for the destination MAC address. This indicates that the VEI has not learned the destination MAC address.
C32 stnVeiL2TxArpRspDropNoEndStation	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.11	Counter32	read-only	The number of outgoing ARP response packets dropped by the VEI because either the ARP's sending or target MAC address is not in the MAC address database.
C32 stnVeiL2ActiveMultiCasts	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.12	Counter32	read-only	The current number of mulicast/broadcast transmit packets that the VEI is propagating across all active VCLinks.
C32 stnVeiL2MultiCastsDrop	1.3.6.1.4.1.3551.2.7.1.6.1.1.1.1.13	Counter32	read-only	The number of multicast/broadcast transmit packets that the VEI dropped due to resource limitations.
stnVeiLinkTable	1.3.6.1.4.1.3551.2.7.1.6.1.1.2		not-accessible	A list of the links configured for a VEI.
stnVeiLinkEntry	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1		not-accessible	Entry contains information about a particular VEI L2.
NUM stnVeiLinkVeiIfIndex	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1.1	InterfaceIndex	read-only	The IfIndex of the VEI for which this VcLink is configured.
NUM stnVeiLinkIfIndex	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1.2	InterfaceIndex	read-only	The IfIndex of this VcLink.
G32 stnVeiLinkMaxEndStations	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1.3	Gauge32	read-only	The maximum number of MAC address database entries that this VcLink service. This limits the number of active endstations supported via this link.
G32 stnVeiLinkCurrentEndStations	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1.4	Gauge32	read-only	The current number of MAC address database entries in use by this VcLink.
C32 stnVeiLinkLearnFailures	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1.5	Counter32	read-only	The number of receive packets discarded because the source MAC address did not appear in the MAC address database and could not be added (learned) due to resource limitations.
C32 stnVeiLinkMacRecycledLocal	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1.6	Counter32	read-only	The number of times a MAC address entry was reused to learn a new MAC address on the same link. The original MAC address is discarded on this event. This occurs only when no traffic has been seen from the endstation corresponding to the MAC address entry after approximately stnVeiL2MacTtl seconds, and a new MAC address must be learned (added to the database) for this link. This recycle only occurs if the VcLink is at its endstation limit (stnVeiLinkMaxEndStations) or a new MAC address database object cannot be allocated due to system resource limits.
C32 stnVeiLinkMacRecycledGlobal	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1.7	Counter32	read-only	The number of times a MAC address entry was removed from this link and reused by a different VcLink to learn a new MAC address. This can only occur when: 1) no traffic has been seen from the endstation corresponding to the MAC address entry for approximately twice stnVeiL2MacTtl seconds, AND 2) the total number of MAC address entries (stnVeiLinkMaxEndStations) for all VcLinks under the VEI is greater than the per-VEI system limit (4096), AND 3) there are no free MAC address entries available. When these conditions are true, then the VEI has been overprovisioned with respect to the number of MAC address entries. Recycling entries across VcLinks allow those VcLinks under high demand claim MAC address entries from VcLinks experiencing less activity.
C32 stnVeiLinkArpRspDropSameIface	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1.8	Counter32	read-only	The number of outgoing ARP Response packets that could be discarded because the target and source MAC Addresses reside on the same VcLink. In this case, no ARP Proxy support is needed, and the packet can safely be discarded.
C32 stnVeiLinkEndStationMoved	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1.9	Counter32	read-only	The number of times the VEI detected that a remote MAC address moved from this link and appeared on another.
NUM stnVeiLinkPhysIfIndex	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1.10	InterfaceIndex	read-only	The physical interface index represents the port and line card used by this link. It is calculated based on the slot and port of the module.
I32 stnVeiLinkVpi	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1.11	Integer32	read-only	The VPI value of the PVC represented by this link.
I32 stnVeiLinkVci	1.3.6.1.4.1.3551.2.7.1.6.1.1.2.1.12	Integer32	read-only	The VCI value of the PVC represented by this link.
stnVeiLinkMacTable	1.3.6.1.4.1.3551.2.7.1.6.1.1.3		not-accessible	A list of the remote MACs learned by a VEI VcLink.
stnVeiLinkMacEntry	1.3.6.1.4.1.3551.2.7.1.6.1.1.3.1		not-accessible	Entry contains information about a particular remote MAC learned on a VEI VcLink.
NUM stnVeiLinkMacVeiIfIndex	1.3.6.1.4.1.3551.2.7.1.6.1.1.3.1.1	InterfaceIndex	read-only	The IfIndex of the VEI for the VcLink which owns the MAC database entry.
NUM stnVeiLinkMacLinkIfIndex	1.3.6.1.4.1.3551.2.7.1.6.1.1.3.1.2	InterfaceIndex	read-only	The IfIndex of the VcLink which owns the MAC database entry.
PHY stnVeiLinkMacAddress	1.3.6.1.4.1.3551.2.7.1.6.1.1.3.1.3	PhysAddress	read-only	The MAC address of the remote endstation for which this database entry corresponds to.
G32 stnVeiLinkMacAge	1.3.6.1.4.1.3551.2.7.1.6.1.1.3.1.4	Gauge32	read-only	The approximate number of time periods that have passed since packets were received from the endstation corresponding to this entry. Each time period is approximately one-half the value of stnVeiL2MacTtl for this VEI. The current maximum for this value is 4. If the entry is statically configured, this value will always be zero.
INT stnVeiLinkMacType	1.3.6.1.4.1.3551.2.7.1.6.1.1.3.1.5	INTEGER	read-only	Indicates the type of MAC database entry. veiLinkMacLearned indicates that the entry was dynamically learned from the incoming packet flow. veiLinkMacStatic indicates that the entry is statically configured and will never age out.

RFC description

Spring Tide Networks Virtual Ethernet Interface (VEI) for logical interface management.

Start monitoring Spring Tide Networks (Lucent) multi-service switch (Virtual Ethernet Interface config) 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 STN-VEI-MIB