NT-ENTERPRISE-DATA-TASMAN-MGMT-ETHERNET-MIB

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Organization: Nortel

Last Updated: 1999-07-01

Category: Nortel Enterprise Data

Description: Handles Ethernet interface configuration, port status, and statistics on Nortel Tasman DSL data chassis.

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What Is NT-ENTERPRISE-DATA-TASMAN-MGMT-ETHERNET-MIB?

NT-ENTERPRISE-DATA-TASMAN-MGMT-ETHERNET-MIB is a Nortel (Tasman platform, built on NT-ENTERPRISE-DATA-MIB) proprietary MIB configuring the management Ethernet interface. Its table, keyed by ID, records description, DHCP relay server/gateway address, failover enable, hold-down time, ICMP redirect/unreachable enable, IP address/subnet mask, directed-broadcast enable, IP multicast flag, MTU, speed, mode, shutdown-enable flag, VLAN ID, row status, and a drop-packets counter. As a configuration/performance MIB it lets an administrator confirm management-Ethernet IP addressing and watch dropped-packet counts on a Nortel Tasman platform device. It is deployed on Nortel Tasman platform equipment (management Ethernet). Engineers can download the NT-ENTERPRISE-DATA-TASMAN-MGMT-ETHERNET-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in NT-ENTERPRISE-DATA-TASMAN-MGMT-ETHERNET-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

Nortel Tasman platform equipment (management Ethernet)

Monitoring Examples

An administrator checks nnethernetIpAddr and nnethernetDropPackets to confirm management-Ethernet configuration and watch packet drops on a Nortel Tasman platform device.

What Can Be Monitored

management-Ethernet IP configuration and dropped-packet counts

Imported Objects

From NT-ENTERPRISE-DATA-MIB

ntEnterpriseDataTasmanInterfaces

OBJECT-IDENTITY

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
RowStatus
TruthValue

How to Use in IPNetwork Monitor

Example using nnethernetDropPackets OID:

Select a Nortel Tasman platform equipment (management Ethernet) 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 nnethernetDropPackets 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 total number of drop packet statistics for the LAN interface when the box encounters packet drops like Tunnel encapsulation errors, VLAN packets dropped due to QoS (classification errors, queuing errors),VLAN packets dropped due to RED, Input/Output interface is down with respect. 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 between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
nnethernetMib	1.3.6.1.4.1.562.73.1.1.2.4			Ethernet MIB for defining ethernet parameters
nnethernetTable	1.3.6.1.4.1.562.73.1.1.2.4.1		not-accessible	Ethernet management related parameters are defined in this table.
nnethernetTableEntry	1.3.6.1.4.1.562.73.1.1.2.4.1.1		not-accessible	Ethernet management parameters are listed in this table.
INT nnethernetId	1.3.6.1.4.1.562.73.1.1.2.4.1.1.1	INTEGER	read-only	ethernetId is the identifier for the ethernet interfaces.
STR nnethernetDescr	1.3.6.1.4.1.562.73.1.1.2.4.1.1.2	DisplayString	read-create	Brief description of the ethernet.The maximum length of this parameter is 25 characters.
IP nnethernetDhcpRelayServerAddr	1.3.6.1.4.1.562.73.1.1.2.4.1.1.3	IpAddress	read-create	The DHCP relay server Ipaddress.
IP nnethernetDhcpRelayGatewayAddr	1.3.6.1.4.1.562.73.1.1.2.4.1.1.4	IpAddress	read-create	The DHCP relay gateway address.
T/F nnethernetFailOverEnable	1.3.6.1.4.1.562.73.1.1.2.4.1.1.5	TruthValue	read-create	This object toggles the failover enable mode for a particular Ethernet interface. The default mode is failover disabled. At present this is only applicable for data using source forwarding on an Ethernet interface. If failover is enabled on a particular Ethernet interface and the Ethernet interface link goes down, source forwarded traffic will switch over to the other Ethernet interface.
INT nnethernetHoldDownTime	1.3.6.1.4.1.562.73.1.1.2.4.1.1.6	INTEGER	read-create	The time, in seconds, that an Ethernet interface should be in holdDown when it receives an up signal. In other words, no source forwarding traffic should be sent on the Ethernet interface during the holdDown time period. The default is 3 seconds and the maximum is 900 seconds (15 minutes). This applies when failover is enabled on the interface and traffic has switched over to the other Ethernet interface .
T/F nnethernetIcmpRedirectEnable	1.3.6.1.4.1.562.73.1.1.2.4.1.1.7	TruthValue	read-create	This object toggles the ICMP redirect mode for a particular Ethernet interface. The default mode is redirect disabled.
T/F nnethernetIcmpUnreachableEnable	1.3.6.1.4.1.562.73.1.1.2.4.1.1.8	TruthValue	read-create	This object toggles the ICMP unreachable mode for a particular Ethernet interface. The default mode is unreachable disabled.
IP nnethernetIpAddr	1.3.6.1.4.1.562.73.1.1.2.4.1.1.9	IpAddress	read-create	The ethernet IP address. The parameters ethernetIpAddr and ethernetSubnetMask have to be set together,giving first IpAddress and then Subnetmask, in a same request. Unless an IpAddress and a Subnet mask are not set the network activity for the specified ethernet interface will not be up for service.
IP nnethernetSubnetMask	1.3.6.1.4.1.562.73.1.1.2.4.1.1.10	IpAddress	read-create	The ethernet subnet mask. The parameters ethernetIpAddr and ethernetSubnetMask have to be set together,giving first IpAddress and then Subnetmask, in a same request. Unless an IpAddress and a Subnet mask are not set the network activity for the specified ethernet interface will not be up for service.
T/F nnethernetIpDirectedBroadcastEnable	1.3.6.1.4.1.562.73.1.1.2.4.1.1.11	TruthValue	read-create	This object toggles the IP directed braodcast mode for a particular Ethernet interface. The default mode is unreachable disabled.
INT nnethernetIpMulticast	1.3.6.1.4.1.562.73.1.1.2.4.1.1.12	INTEGER	read-create	Specifies the multicast type.
I32 nnethernetMtu	1.3.6.1.4.1.562.73.1.1.2.4.1.1.13	Integer32	read-create	Specifies the message transfer size. It has a range of 64-4072. The default value is 1500.
INT nnethernetSpeed	1.3.6.1.4.1.562.73.1.1.2.4.1.1.14	INTEGER	read-create	Specifies the ethernet speed. The values are 10 or 100 or auto.
INT nnethernetMode	1.3.6.1.4.1.562.73.1.1.2.4.1.1.15	INTEGER	read-create	Specifies the ethernet mode to be half-duplex or full-duplex. The default value is half-duplex.
T/F nnethernetShutdownEnable	1.3.6.1.4.1.562.73.1.1.2.4.1.1.16	TruthValue	read-create	This object when enabled shuts down the particular Ehternet interface. Default value is disabled. Both cannot be shutdown at same time. Either of the two Ethernet interfaces, with valid IpAddress, should be up and running for a network activity.
INT nnethernetVlanId	1.3.6.1.4.1.562.73.1.1.2.4.1.1.17	INTEGER	read-create	Vlan Tagging enabled in VLAN forwarding mode for this Id.
ROW nnethernetRowStatus	1.3.6.1.4.1.562.73.1.1.2.4.1.1.18	RowStatus	read-create	RowStatus is used to add/delete a row in the table. Adding or deleting a row corresponds to creating or deleting an ethernet entry. In order to add a row to the ethernet table, a set should be done with the value 4 (createAndGo) along with the value of 65535 as an index for both RowStatus and Ethernet Descr. A request to create a row can be completed successfully if and only if a set on the ethernetRowStatus and the ethernetDescr come in the same request with first RowStatus and then Ethernet Description. To delete a row this parameter has to be set with the value 6(destroy).
C32 nnethernetDropPacketsEx	1.3.6.1.4.1.562.73.1.1.2.4.1.1.19	Counter32	read-only	The total number of drop packet statistics for the LAN interface when the box encounters packet drops like Tunnel encapsulation errors, VLAN packets dropped due to QoS (classification errors, queuing errors),VLAN packets dropped due to RED, Input/Output interface is down with respect to VLAN, VLAN errors such as unrecognized VLAN id, multiple dot1q encapsulations in the packet, system errors from the time box is up. This list is only a subset of the numerous reasons for the packets to be dropped by the agent per interface

RFC description

Manages Ethernet interface configuration, statistics, and port status on Nortel Tasman DSL data chassis.

Start monitoring Nortel Tasman platform equipment (management Ethernet) 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 NT-ENTERPRISE-DATA-TASMAN-MGMT-ETHERNET-MIB