DT-MIB

All MIBs › DT-MIB

Organization: HP Networking

Last Updated: 2012-05-22

Category: Device Management, Vendor: HP/HPE

Description: Manages device timing and synchronization parameters for telecommunications network equipment.

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What Is DT-MIB?

DT-MIB (Distributed Trunking) is an HP ProCurve/HP Networking proprietary MIB managing HP's Distributed Trunking feature, which lets two physical switches present a single logical link-aggregation partner to a downstream device for redundancy without a full stacking chassis. It exposes configuration for peer keepalive settings, statistics on the Inter-Switch Connection (ISC) protocol used between the two DT peer switches, and overall DT peer keepalive and system status information. Its monitoring value is squarely on hardware/software health of the trunking feature: it reports peer keepalive statistics and ISC protocol statistics that reveal whether the two distributed-trunking peer switches can still see each other, which is critical since a lost peer relationship risks a split-brain or loop condition. It builds on standard link-aggregation concepts and HP's proprietary ISC protocol, and is closely tied to HP's LACP/trunk configuration MIBs. It is deployed on pairs of HP ProCurve/HP Networking switches configured in a Distributed Trunking topology for server or uplink redundancy. Network engineers evaluating or troubleshooting this functionality can download the DT-MIB file directly to load it into their MIB browser.

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

HP ProCurve/HP Networking switch (Distributed Trunking pair)

Monitoring Examples

An operator would poll hpSwitchDtPeerKeepAliveStats alongside hpSwitchDtPeerKeepAliveConfig to confirm the keepalive interval/timeout is configured correctly and that keepalive exchanges with the DT peer switch are succeeding. Checking hpSwitchDtIscProtocolStats would reveal ISC protocol errors or drops between the two peer switches, which if rising would warn of an unstable inter-switch link risking a DT failover. hpSwitchDtSystemInfo would be read to confirm both switches agree on their DT role/system state before relying on the pair for redundant uplinks.

What Can Be Monitored

peer keepalive configuration/status
ISC protocol statistics
DT system role/state
peer keepalive statistics

Imported Objects

From HP-ICF-OID

hpSwitch

OBJECT-IDENTITY

From INET-ADDRESS-MIB

InetAddress
InetAddressType
InetPortNumber

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
MacAddress

How to Use in IPNetwork Monitor

Example using hpSwitchDtIscHelloPktsSent OID:

Select an HP ProCurve/HP Networking switch pair (Distributed Trunking) 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 hpSwitchDtIscHelloPktsSent into the Find box to locate it in the OID tree, then select it and click OK. The total number of ISC protocol hello packets sent to the peer DT switch. 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 (in Packets), 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
hpConfig	1.3.6.1.4.1.11.2.14.11.5.1.7
hpSwitchConfig	1.3.6.1.4.1.11.2.14.11.5.1.7.1
hpSwitchDt	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27			This MIB module contains HP proprietary Distributed Trunking(DT) MIB.
I32 hpSwitchISCPortIndex	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.1	Integer32	read-write	The ifIndex value of Inter Switch Connection (ISC) port. The default value is 0, which means there is no ISC port configured.
I32 hpSwitchRemoteISCPortIndex	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.2	Integer32	read-only	The logical port value of remote switch Inter Switch Connection Port. The default value is 0, which means there is no ISC port configured.
hpSwitchDtLacpStatus	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3
hpSwitchDtLacpStatusLocalTable	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.1		not-accessible	This table holds the lacp status information of all ports that are members of trunks configured as type 'dt-lacp'.
hpSwitchDtLacpStatusLocalEntry	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.1.1		not-accessible	The lacp status information of each local port that is part of a trunk configured as type 'dt-lacp'.
I32 hpSwitchDtLacpLocalIfIndex	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.1.1.1	Integer32	read-only	The ifIndex value of the local interface.
STR hpSwitchDtLacpLocalIfName	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.1.1.2	DisplayString	read-only	The ifName value of the local interface.
I32 hpSwitchDtLacpLocalIfLacpEnable	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.1.1.3	Integer32	read-only	The lacp configuration for the local interface.
I32 hpSwitchDtLacpLocalIfTrunkGroup	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.1.1.4	Integer32	read-only	The trunk group information of the local interface.
I32 hpSwitchDtLacpLocalIfLacpPortStatus	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.1.1.5	Integer32	read-only	The lacp port status information of the local interface.
I32 hpSwitchDtLacpLocalIfLacpPartner	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.1.1.6	Integer32	read-only	The lacp partner information of the local interface.
I32 hpSwitchDtLacpLocalIfLacpStatus	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.1.1.7	Integer32	read-only	The lacp status information of the local interface.
I32 hpSwitchDtLacpLocalIfLacpAdminKey	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.1.1.8	Integer32	read-only	The lacp admin key information of the local interface.
I32 hpSwitchDtLacpLocalIfLacpOperKey	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.1.1.9	Integer32	read-only	The lacp operational key information of the local interface.
hpSwitchDtLacpStatusPeerTable	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.2		not-accessible	This table holds the lacp status information of all ports that are members of trunks configured as type 'dt-lacp'.
hpSwitchDtLacpStatusPeerEntry	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.2.1		not-accessible	The lacp status information of each peer port that is part of a trunk configured as type 'dt-lacp'.
I32 hpSwitchDtLacpPeerIfIndex	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.2.1.1	Integer32	read-only	The ifIndex value of the peer interface.
STR hpSwitchDtLacpPeerIfName	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.2.1.2	DisplayString	read-only	The ifName value of the peer interface.
I32 hpSwitchDtLacpPeerIfLacpEnable	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.2.1.3	Integer32	read-only	The lacp configuration for the peer interface.
I32 hpSwitchDtLacpPeerIfTrunkGroup	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.2.1.4	Integer32	read-only	The trunk group information of the peer interface.
I32 hpSwitchDtLacpPeerIfLacpPortStatus	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.2.1.5	Integer32	read-only	The lacp port status information of the peer interface.
I32 hpSwitchDtLacpPeerIfLacpPartner	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.2.1.6	Integer32	read-only	The lacp partner information of the peer interface.
I32 hpSwitchDtLacpPeerIfLacpStatus	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.3.2.1.7	Integer32	read-only	The lacp status information of the peer interface.
hpSwitchDtConfig	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.4
hpSwitchDtPeerKeepAliveConfig	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.4.1
IPt hpSwitchDtPeerKeepAliveDestAddressType	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.4.1.1	InetAddressType	read-write	The address type of the peer keep-alive destination address. Only IPv4 type is supported.
IP hpSwitchDtPeerKeepAliveDestAddress	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.4.1.2	InetAddress	read-write	The destination IP address to be used by DT switches to send peer keep-alive packets to the peer DT switch.
I32 hpSwitchDtPeerKeepAliveVlanId	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.4.1.3	Integer32	read-write	The interface on which peer keep-alive packets are sent out. A value of zero indicates peer keep-alive interface is not configured.
INE hpSwitchDtPeerKeepAliveDestUdpPort	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.4.1.4	InetPortNumber	read-write	The current value of the destination UDP port for transmitting peer keep-alive messages.
I32 hpSwitchDtPeerKeepAliveInterval	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.4.1.5	Integer32	read-write	The current value of peer keep-alive packet transmission interval for DT switches in milliseconds.
I32 hpSwitchDtPeerKeepAliveTimeout	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.4.1.6	Integer32	read-write	The peer keep-alive timeout period for DT switches in seconds.
I32 hpSwitchDtPeerKeepAliveHoldTime	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.4.1.7	Integer32	read-write	The current value of keep-alive hold timer for DT switches in seconds.
hpSwitchDtStats	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.5
hpSwitchDtIscProtocolStats	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.5.1
C32 hpSwitchDtIscHelloPktsSentEx	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.5.1.1	Counter32	read-only	The total number of ISC protocol hello packets sent to the peer DT switch.
C32 hpSwitchDtIscHelloPktsRecv	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.5.1.2	Counter32	read-only	The total number of ISC protocol hello packets received from the peer DT switch.
C32 hpSwitchDtIscMACLearnPktsSent	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.5.1.3	Counter32	read-only	The total number of MAC learn packets sent to the peer switch.
C32 hpSwitchDtIscMACLearnPktsRecv	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.5.1.4	Counter32	read-only	The total number of MAC learn packets received from the peer switch.
C32 hpSwitchDtIscMACAgedPktsSent	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.5.1.5	Counter32	read-only	The total number of MAC ageout packets sent to the peer switch.
C32 hpSwitchDtIscMACAgedPktsRecv	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.5.1.6	Counter32	read-only	The total number of MAC ageouts received from the peer switch.
hpSwitchDtPeerKeepAliveStats	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.5.2
C32 hpSwitchDtPeerKeepAlivePktsSent	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.5.2.1	Counter32	read-only	The number of peer keep-alive packets sent on the keep-alive interface.
C32 hpSwitchDtPeerKeepAlivePktsRecv	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.5.2.2	Counter32	read-only	The number of valid peer keep-alive packets received on the keep-alive interface.
hpSwitchDtSystemInfo	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.6
INT hpSwitchDtSystemISCProtocolState	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.6.1	INTEGER	read-only	The current value of DT ISC protocol state. This OID will return error when DT is not configured.
MAC hpSwitchDtSystemDtLacpSystemID	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.6.2	MacAddress	read-only	The current value of system ID used by DT LACPDU. This OID will return error when DT is not configured otherwise it returns the system ID.
I32 hpSwitchDtSystemAdminRolePriority	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.6.3	Integer32	read-write	The admin value for DT role priority. The DT switch with lower priority value will be elected as DT primary when dual active scenario is detected.
I32 hpSwitchDtSystemOperRolePriority	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.6.4	Integer32	read-only	The operational value of DT role priority which is currently used by the protocol.
I32 hpSwitchDtSystemPeerOperRolePriority	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.6.5	Integer32	read-only	The operational role priority value of the connected DT partner.
INT hpSwitchDtSystemRole	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.6.6	INTEGER	read-only	The current role of the DT switch. This is represented as primary or secondary. Primary switch will keep the DT links active while secondary will block its DT links when dual active is detected.When the ISC link is up role is not applicable.
hpSwitchDtConformance	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.256
hpSwitchDtCompliances	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.256.1
hpSwitchDtCompliance	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.256.1.1			The compliance statement for the entries in the Distributed Trunking MIB.
hpSwitchDtCompliance1	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.256.1.2			The compliance statement for the entries in the Distributed Trunking MIB.
hpSwitchDtGroups	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.256.2
hpSwitchDtIscGroup	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.256.2.1			A collection of objects providing information about switch-interconnect port.
hpSwitchDtLocalLacpGroup	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.256.2.2			A collection of objects providing information about local dt-lacp ports.
hpSwitchDtRemoteLacpGroup	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.256.2.3			A collection of objects providing information about remote dt-lacp ports.
hpSwitchDtPeerKeepAliveGroup	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.256.2.4			A collection of objects providing information about peer keep-alive interface.
hpSwitchDtIscStatsGroup	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.256.2.5			A collection of objects providing information about DT ISC protocol.
hpSwitchDtPeerKeepAliveStatsGroup	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.256.2.6			A collection of objects providing information about peer keep-alive protocol.
hpSwitchDtSystemInfoGroup	1.3.6.1.4.1.11.2.14.11.5.1.7.1.27.256.2.7			A collection of objects providing system wide information.

RFC description

Manages Distributed Trunking configuration, LACP, and inter-switch communication on HP switches.

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Download DT-MIB