Contents

HH3C-LPBKDT-MIB· 1

About this MIB· 1

MIB file name· 1

Root object 1

Scalar objects· 1

hh3cLpbkdtVlanID (1.3.6.1.4.1.25506.2.95.2.1) 1

hh3cLpbkdtVlanEnable (1.3.6.1.4.1.25506.2.95.2.2) 1

hh3cLpbkdtAction (1.3.6.1.4.1.25506.2.95.2.3) 2

hh3cLpbkdtIntervalTime (1.3.6.1.4.1.25506.2.95.2.4) 2

hh3cLpbkdtVsiName (1.3.6.1.4.1.25506.2.95.1.1.1) 2

hh3cLpbkdtSVlanID (1.3.6.1.4.1.25506.2.95.1.1.2) 2

hh3cLpbkdtCVlanID (1.3.6.1.4.1.25506.2.95.1.1.3) 2

hh3cLpbkdtACName (1.3.6.1.4.1.25506.2.95.1.1.4) 3

Tabular objects· 3

hh3cLpbkdtPortTable· 3

Notifications· 4

hh3cLpbkdtTrapLoopbacked· 4

hh3cLpbkdtTrapRecovered· 5

hh3cLpbkdtTrapPerVlanLoopbacked· 5

hh3cLpbkdtTrapPerVlanRecovered· 6

hh3cLpbkdtTrapVsiLoopbacked· 7

hh3cLpbkdtTrapVsiRecovered· 8

hh3cLpbkdtTrapActionLOG·· 9

hh3cLpbkdtTrapActionLOGClear 10

hh3cLpbkdtTrapActionBlock· 11

hh3cLpbkdtTrapActionBlockClear 12

hh3cLpbkdtTrapActionDown· 12

hh3cLpbkdtTrapActionDownClear 13

 

 

HH3C-LPBKDT-MIB

About this MIB

The loop detection mechanism performs periodic checking for Layer 2 loops and processes the interfaces with loops as configured.

Use this MIB to perform the following tasks:

·     Generate traps when the loop state of an interface changes.

·     Configure and view the loop detection state, loop protection action, and loop detection interval for VLANs globally.

·     Configure and view the loop detection state, loop protection action, and loop detection interval for VLANs on an interface.

MIB file name

hh3c-lpbkdt.mib

Root object

iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).hh3c(25506).h3cCommon(2).hh3cDldp2Lpbkdt(95)

Scalar objects

hh3cLpbkdtVlanID (1.3.6.1.4.1.25506.2.95.2.1)

Object (OID)	Access	Syntax	Value range	Description	Implementation
hh3cLpbkdtVlanID (1.3.6.1.4.1.25506.2.95.2.1)	accessible-for-notify	INTEGER	1..4094	VLAN ID in reported trap messages when a loop is detected or eliminated on an interface.	As per the MIB.

 

hh3cLpbkdtVlanEnable (1.3.6.1.4.1.25506.2.95.2.2)

Object (OID)	Access	Syntax	Value range	Description	Implementation
hh3cLpbkdtVlanEnable (1.3.6.1.4.1.25506.2.95.2.2)	read-write	OCTET STRING	OCTET STRING (1..512)	Enable or disable loop detection for VLANs globally.	As per the MIB.

 

hh3cLpbkdtAction (1.3.6.1.4.1.25506.2.95.2.3)

Object (OID)	Access	Syntax	Value range	Description	Implementation
hh3cLpbkdtAction (1.3.6.1.4.1.25506.2.95.2.3)	read-write	INTEGER	none (1), block(2), nolearning(3), shutdown(4)	Configure the global loop protection action, which is to take on all ports where loops are detected.	In the current software version, only the log and shutdown operations are supported, and the block and nolearning actions are not supported.

 

hh3cLpbkdtIntervalTime (1.3.6.1.4.1.25506.2.95.2.4)

Object (OID)	Access	Syntax	Value range	Description	Implementation
hh3cLpbkdtIntervalTime (1.3.6.1.4.1.25506.2.95.2.4)	read-write	Integer32	1..300	Loop detection interval.	As per the MIB.

 

hh3cLpbkdtVsiName (1.3.6.1.4.1.25506.2.95.1.1.1)

Object (OID)	Access	Syntax	Value range	Description	Implementation
hh3cLpbkdtVsiName (1.3.6.1.4.1.25506.2.95.1.1.1)	accessible-for-notify	OCTET STRING	OCTET STRING（0..255）	VSI name.	As per the MIB.

 

hh3cLpbkdtSVlanID (1.3.6.1.4.1.25506.2.95.1.1.2)

Object (OID)	Access	Syntax	Value range	Description	Implementation
hh3cLpbkdtSVlanID (1.3.6.1.4.1.25506.2.95.1.1.2)	accessible-for-notify	Integer32	Integer32 (1..4094)	SVLAN ID.	As per the MIB.

 

hh3cLpbkdtCVlanID (1.3.6.1.4.1.25506.2.95.1.1.3)

Object (OID)	Access	Syntax	Value range	Description	Implementation
hh3cLpbkdtCVlanID (1.3.6.1.4.1.25506.2.95.1.1.3)	accessible-for-notify	Integer32	Integer32 (1..4094)	CVLAN ID.	As per the MIB.

 

hh3cLpbkdtACName (1.3.6.1.4.1.25506.2.95.1.1.4)

Object (OID)	Access	Syntax	Value range	Description	Implementation
hh3cLpbkdtACName (1.3.6.1.4.1.25506.2.95.1.1.4)	accessible-for-notify	OCTET STRING	OCTET STRING（0..255）	AC name.	As per the MIB.

 

Tabular objects

hh3cLpbkdtPortTable

About this table

Use this table to configure loop detection on a port.

Support for operations

Create：Supported

Edit/Modify：Supported

Delete：Supported

Read：Supported

Columns

The table index is hh3cLpbkdtPortIndex.

Object (OID)	Access	Syntax	Value range	Description	Implementation
hh3cLpbkdtPortIfIndex (1.3.6.1.4.1.25506.2.95.2.5.1.1)	not-accessible	INTEGER	1..2147483647	Interface index.	As per the MIB.
hh3cLpbkdtPortVlanEnable (1.3.6.1.4.1.25506.2.95.2.5.1.2)	read-write	OCTET STRING	OCTET STRING (1..512)	Enable or disable loop detection for VLANs on a port.	As per the MIB.
hh3cLpbkdtPortAction (1.3.6.1.4.1.25506.2.95.2.5.1.3)	read-write	INTEGER	none (1), block(2), nolearning(3), shutdown(4)	Configure the loop protection action for a port, which is to take on the port when a loop is detected.	An aggregate interface supports only the log and shutdown actions. The other interfaces support all actions.
hh3cLpbkdtPortLoopbacked (1.3.6.1.4.1.25506.2.95.2.5.1.4)	read-only	TruthValue	true(1), false(2)	Check for a loop on a port.	As per the MIB.

 

Notifications

hh3cLpbkdtTrapLoopbacked

Basic information

OID	Event	Type	Severity	Recovery notification	Default status
1.3.6.1.4.1.25506.2.95.1.0.1	Loops occur on an interface.	Error	Warning	1.3.6.1.4.1.25506.2.95.1.0.2 (hh3cLpbkdtTrapRecovered)	ON

 

Notification triggers

This notification is generated when the device receives loop detection frames sent by the device itself.

System impact

If you do not remove loops, the broadcast storm caused by loops might cause network congestion or even cause the network to break down.

After loops are removed, the system impact varies by the following loop detection actions:

Block—Disables the interface from learning MAC addresses and blocks the interface.

No-learning—Disables the interface from learning MAC addresses.

Shutdown—Shuts down the interface to disable it from receiving and sending any frames.

VLAN-block—Blocks traffic of the protected VLAN where the loop is detected on the interface.

Status control

This notification cannot be disabled.

Object

OID (object name)	Description	Index	Type	Value range
6.1.4.1.2.1.2.2.1.1  (ifIndex)	Interface index	ifIndex	Integer32	Integer32 (1..2147483647)
1.3.6.1.2.1.2.2.1.2 (ifDescr)	Interface name	ifIndex	OCTET STRING	OCTET STRING(0..255)

 

Recommended action

To resolve this issue:

1.Check whether a Layer 2 loop occurs on the interface.

2.Change the network physical topology to remove the Layer 2 loop.

3.If the issue persists, collect alarm information and configuration data, and then contact H3C Support for help.

hh3cLpbkdtTrapRecovered

Basic information

OID	Event	Type	Severity	Recovery notification	Default status
1.3.6.1.4.1.25506.2.95.1.0. 2	Loops are removed from an interface.	Recovery	Warning	N/A (N/A)	ON

 

Notification triggers

This notification is generated when the device does not receive a loop detection frame within the loop detection interval.

System impact

The interface is restored to the normal forwarding state and the interface services are recovered.

Status control

This notification cannot be disabled.

Object

OID (object name)	Description	Index	Type	Value range
1.3.6.1.2.1.2.2.1.1  (ifIndex)	Interface index	ifIndex	Integer32	Integer32 (1..2147483647)
1.3.6.1.2.1.2.2.1.2 (ifDescr)	Interface name	ifIndex	OCTET STRING	OCTET STRING(0..255)

 

Recommended action

No action is required.

hh3cLpbkdtTrapPerVlanLoopbacked

Basic information

OID	Event	Type	Severity	Recovery notification	Default status
1.3.6.1.4.1.25506.2.95.1.0.3	Loops occur on an interface in a specific VLAN.	Error	Warning	1.3.6.1.4.1.25506.2.95.1.0.4 (hh3cLpbkdtTrapPerVlanRecovered)	ON

 

Notification triggers

This notification is generated when the device receives loop detection frames sent by the device itself in a specific VLAN.

System impact

If you do not remove loops, the broadcast storm caused by loops might cause network congestion or even cause the network to break down.

After loops are removed, the system impact varies by the following loop detection actions:

Block—Disables the interface from learning MAC addresses and blocks the interface.

No-learning—Disables the interface from learning MAC addresses.

Shutdown—Shuts down the interface to disable it from receiving and sending any frames.

VLAN-block—Blocks traffic of the protected VLAN where the loop is detected on the interface.

Status control

This notification cannot be disabled.

Object

OID (object name)	Description	Index	Type	Value range
1.3.6.1.2.1.2.2.1.1  (ifIndex)	Interface index	ifIndex	Integer32	Integer32 (1..2147483647)
1.3.6.1.2.1.2.2.1.2  (ifDescr)	Interface name	ifIndex	OCTET STRING	OCTET STRING(0..255)
1.3.6.1.4.1.25506.2. 2/1/1995 (hh3cLpbkdtVlanID)	VLAN ID	N/A	Integer32	Integer32 (1..4094)

 

Recommended action

To resolve this issue:

1.Check whether a Layer 2 loop occurs on the interface.

2.Change the network physical topology to remove the Layer 2 loop.

3.If the issue persists, collect alarm information and configuration data, and then contact H3C Support for help.

hh3cLpbkdtTrapPerVlanRecovered

Basic information

OID	Event	Type	Severity	Recovery notification	Default status
1.3.6.1.4.1.25506.2.95.1.0.4	Loops are removed from an interface in a specific VLAN.	Recovery	Warning	N/A (N/A)	ON

 

Notification triggers

This notification is generated when the device does not receive a loop detection frame in a specific VLAN within the loop detection interval.

System impact

The interface is restored to the normal forwarding state in the VLAN and the VLAN services are recovered.

Status control

This notification cannot be disabled.

Object

OID (object name)	Description	Index	Type	Value range
1.3.6.1.2.1.2.2.1.1  (ifIndex)	Interface index	ifIndex	Integer32	Integer32 (1..2147483647)
1.3.6.1.2.1.2.2.1.2  (ifDescr)	Interface name	ifIndex	OCTET STRING	OCTET STRING(0..255)
1.3.6.1.4.1.25506.2. 2/1/1995 (hh3cLpbkdtVlanID)	VLAN ID	N/A	Integer32	Integer32 (1..4094)

 

Recommended action

No action is required.

hh3cLpbkdtTrapVsiLoopbacked

Basic information

OID	Event	Type	Severity	Recovery notification	Default status
1.3.6.1.4.1.25506.2.95.1.0.5	Loops occur on an AC.	Error	Warning	1.3.6.1.4.1.25506.2.95.1.0.6 (hh3cLpbkdtTrapVsiRecovered)	ON

 

Notification triggers

This notification is generated when an AC receives a loop detection frame that carries the AC's VXLAN ID.

System impact

If you do not remove loops, the broadcast storm caused by loops might cause network congestion or even cause the network to break down.

After loops are removed, the system impact varies by the following loop detection actions:

Block—Disables the AC from learning MAC addresses and blocks the AC.

Shutdown—Shuts down the interface where the AC resides to disable it from receiving and sending any frames.

Status control

This notification cannot be disabled.

Object

OID (object name)	Description	Index	Type	Value range
1.3.6.1.2.1.2.2.1.1  (ifIndex)	Interface index	ifIndex	Integer32	Integer32 (1..2147483647)
1.3.6.1.4.1.25506.2.95.1.1.1  (hh3cLpbkdtVsiName)	VSI name	N/A	OCTET STRING	OCTET STRING(0..255)
1.3.6.1.4.1.25506.2.95.1.1.2  (hh3cLpbkdtSVlanID)	SVLAN ID	N/A	Integer32	Integer32 (1..4094)
1.3.6.1.4.1.25506.2.95.1.1.3  (hh3cLpbkdtCVlanID)	CVLAN ID	N/A	Integer32	Integer32 (1..4094)
1.3.6.1.4.1.25506.2.95.1.1.4 (hh3cLpbkdtACName)	AC name	N/A	OCTET STRING	OCTET STRING(0..255)

 

Recommended action

To resolve this issue:

1.Check whether a Layer 2 loop occurs on the interface where the AC resides.

2.Change the network physical topology to remove the Layer 2 loop.

3.If the issue persists, collect alarm information and configuration data, and then contact H3C Support for help.

hh3cLpbkdtTrapVsiRecovered

Basic information

OID	Event	Type	Severity	Recovery notification	Default status
1.3.6.1.4.1.25506.2.95.1.0.6	Loops are removed from an AC.	Recovery	Warning	N/A (N/A)	ON

 

Notification triggers

This notification is generated when an AC does not receive a loop detection frame that carries the AC's VXLAN ID within the loop detection interval.

System impact

The AC is restored to the normal forwarding state and the AC services are recovered.

Status control

This notification cannot be disabled.

Object

OID (object name)	Description	Index	Type	Value range
1.3.6.1.2.1.2.2.1.1  (ifIndex)	Interface index	ifIndex	Integer32	Integer32 (1..2147483647)
1.3.6.1.4.1.25506.2.95.1.1.1  (hh3cLpbkdtVsiName)	VSI name	N/A	OCTET STRING	OCTET STRING(0..255)
1.3.6.1.4.1.25506.2.95.1.1.4 (hh3cLpbkdtACName)	AC name	N/A	OCTET STRING	OCTET STRING(0..255)

 

Recommended action

No action is required.

hh3cLpbkdtTrapActionLOG

Basic information

OID	Event	Type	Severity	Recovery notification	Default status
1.3.6.1.4.1.25506.2.95.1.0.7	A loop occurs on an interface and a log message is generated.	Error	Warning	1.3.6.1.4.1.25506.2.95.1.0.8 (hh3cLpbkdtTrapActionLOGClear)	ON

 

Notification triggers

This notification is generated when the interface is in loopback state and the processing action uses the default.

System impact

If you do not remove loops, the broadcast storm caused by loops might cause network congestion or even cause the network to break down.

After loops are removed, the system impact varies by the following loop detection actions:

Block—Disables the interface from learning MAC addresses and blocks the interface.

No-learning—Disables the interface from learning MAC addresses.

Shutdown—Shuts down the interface to disable it from receiving and sending any frames.

VLAN-block—Blocks traffic of the protected VLAN where the loop is detected on the interface.

Status control

This notification cannot be disabled.

Object

OID (object name)	Description	Index	Type	Value range
1.3.6.1.2.1.2.2.1.1  (ifIndex)	Interface index	ifIndex	Integer32	Integer32 (1..2147483647)
1.3.6.1.2.1.2.2.1.2 (ifDescr)	Interface name	ifIndex	OCTET STRING	OCTET STRING (0..255)

 

Recommended action

To resolve this issue:

1.Check whether a Layer 2 loop occurs on the interface.

2.Change the network physical topology to remove the Layer 2 loop.

3.If the issue persists, collect alarm information and configuration data, and then contact H3C Support for help.

hh3cLpbkdtTrapActionLOGClear

Basic information

OID	Event	Type	Severity	Recovery notification	Default status
1.3.6.1.4.1.25506.2.95.1.0.8	A loop is removed or the processing action is changed and a log message is generated.	Recovery	Warning	N/A (N/A)	ON

 

Notification triggers

This notification is generated when the loop is removed or the processing action is changed.

System impact

When loops are removed, services are recovered on the interface where loops occur.

After loops are removed, the system impact varies by the following loop detection actions:

Block—Disables the interface from learning MAC addresses and blocks the interface.

No-learning—Disables the interface from learning MAC addresses.

Shutdown—Shuts down the interface to disable it from receiving and sending any frames.

VLAN-block—Blocks traffic of the protected VLAN where the loop is detected on the interface.

Status control

This notification cannot be disabled.

Object

OID (object name)	Description	Index	Type	Value range
1.3.6.1.2.1.2.2.1.1  (ifIndex)	Interface index	ifIndex	Integer32	Integer32 (1..2147483647)
1.3.6.1.2.1.2.2.1.2 (ifDescr)	Interface name	ifIndex	OCTET STRING	OCTET STRING (0..255)

 

Recommended action

No action is required.

hh3cLpbkdtTrapActionBlock

Basic information

OID	Event	Type	Severity	Recovery notification	Default status
1.3.6.1.4.1.25506.2.95.1.0.9	A loop occurs on an interface and the processing action is block	Error	Warning	1.3.6.1.4.1.25506.2.95.1.0.10 (hh3cLpbkdtTrapActionBlockClear)	ON

 

Notification triggers

This notification is generated when the device receives loop detection frames sent by the device itself and the processing action is block.

System impact

A loop occurs on an interface in a VLAN, and the interface is blocked.

Status control

This notification cannot be disabled.

Object

OID (object name)	Description	Index	Type	Value range
1.3.6.1.2.1.2.2.1.1  (ifIndex)	Interface index	ifIndex	Integer32	Integer32 (1..2147483647)
1.3.6.1.2.1.2.2.1.2 (ifDescr)	Interface name	ifIndex	OCTET STRING	OCTET STRING (0..255)

 

Recommended action

To resolve this issue:

1.Check whether a Layer 2 loop occurs on the interface.

2.Change the network physical topology to remove the Layer 2 loop.

3.If the issue persists, collect alarm information and configuration data, and then contact H3C Support for help.

hh3cLpbkdtTrapActionBlockClear

Basic information

OID	Event	Type	Severity	Recovery notification	Default status
1.3.6.1.4.1.25506.2.95.1.0.10	The blocked interface is restored to the normal forwarding state.	Recovery	Warning	N/A (N/A)	ON

 

Notification triggers

The loop is considered removed if no loop detection packets are received on the blocked interface within three loop detection intervals.

System impact

The interface is restored to the normal forwarding state and the interface services are recovered.

Status control

This notification cannot be disabled.

Object

OID (object name)	Description	Index	Type	Value range
1.3.6.1.2.1.2.2.1.1  (ifIndex)	Interface index	ifIndex	Integer32	Integer32 (1..2147483647)
1.3.6.1.2.1.2.2.1.2 (ifDescr)	Interface name	ifIndex	OCTET STRING	OCTET STRING (0..255)

 

Recommended action

No action is required.

hh3cLpbkdtTrapActionDown

Basic information

OID	Event	Type	Severity	Recovery notification	Default status
1.3.6.1.4.1.25506.2.95.1.0.11	A loop occurs on an interface and the processing action is shutdown	Error	Warning	1.3.6.1.4.1.25506.2.95.1.0.12 (hh3cLpbkdtTrapActionDownClear)	ON

 

Notification triggers

This notification is generated when the device receives loop detection frames sent by the device itself and the interface goes down.

System impact

The device shuts down the interface where a loop occurs to disable it from receiving and sending any frames.

Status control

This notification cannot be disabled.

Object

OID (object name)	Description	Index	Type	Value range
1.3.6.1.2.1.2.2.1.1  (ifIndex)	Interface index	ifIndex	Integer32	Integer32 (1..2147483647)
1.3.6.1.2.1.2.2.1.2 (ifDescr)	Interface name	ifIndex	OCTET STRING	OCTET STRING (0..255)

 

Recommended action

To resolve this issue:

1.Check whether a Layer 2 loop occurs on the interface.

2.Change the network physical topology to remove the Layer 2 loop.

3.If the issue persists, collect alarm information and configuration data, and then contact H3C Support for help.

hh3cLpbkdtTrapActionDownClear

Basic information

OID	Event	Type	Severity	Recovery notification	Default status
1.3.6.1.4.1.25506.2.95.1.0.12	The shutdown interface is restored	Recovery	Warning	N/A (N/A)	ON

 

Notification triggers

After the interface where a loop occurs is shut down, the interface is restored after the interval configured by using the shutdown-interval command.

System impact

The interface is restored to the normal forwarding state. If the loop still exists on the interface, the interface will be shut down and then restored repeatedly until the loop is removed.

Status control

This notification cannot be disabled.

Object

OID (object name)	Description	Index	Type	Value range
1.3.6.1.2.1.2.2.1.1  (ifIndex)	Interface index	ifIndex	Integer32	Integer32 (1..2147483647)
1.3.6.1.2.1.2.2.1.2 (ifDescr)	Interface name	ifIndex	OCTET STRING	OCTET STRING (0..255)

 

Recommended action

To resolve this issue:

● If the interface is shut down after it is restored, perform the following tasks:

Check whether a Layer 2 loop occurs on the interface.

Change the network physical topology to remove the Layer 2 loop.

If the issue persists, collect alarm information and configuration data, and then contact H3C Support for help.

● If the interface is not shut down after it is restored, no action is required.