display isis bfd-bit-error

Function

The display isis bfd-bit-error interface command displays information about interfaces on which BFD-based bit error detection is enabled.

The display isis bfd-bit-error session command displays information about BFD sessions used to detect bit errors.

Format

display isis bfd-bit-error [ process-id | { vpn-instance vpn-instance-name } ] session { all | { peer peer-addr } | interface { interface-name | interface-type interface-number } }

display isis bfd-bit-error [ process-id | { vpn-instance vpn-instance-name } ] interface

Parameters

Parameter	Description	Value
process-id	Specifies an IS-IS process ID.	The value is an integer ranging from 1 to 4294967295.
vpn-instance vpn-instance-name	Specifies a VPN instance name.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported. In addition, the VPN instance name must not be _public_. When double quotation marks are used around the string, spaces are allowed in the string.
all	Indicates all IS-IS interfaces.	-
peer peer-addr	Specifies the IP address of a neighbor.	The value is in dotted decimal notation.
interface interface-type interface-number	Specifies the type and number of an interface.	-

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
isis	read

Usage Guidelines

Usage Scenario

To check information about interfaces on which BFD-based bit error detection is enabled, run the display isis bfd-bit-error interface command. The command output helps you check whether BFD-based bit error detection operates properly.

To check information about BFD sessions used to detect bit errors, run the display isis bfd-bit-error session command. The command output helps you check whether BFD-based error bit detection works properly.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display information about interfaces on which BFD-based bit error detection is enabled.

<HUAWEI> display isis bfd-bit-error interface
BFD bit error information of interface for ISIS(1)
                   -----------------------------------------

 Interface          BFD Bit Error State
 GE0/1/1            enable        
 GE0/1/2            enable   
 GE0/1/8            enable    

 Total interfaces: 3                          Total BFD bit error enabled interfaces: 3

# Display information about BFD sessions used to detect bit errors.

<HUAWEI> display isis bfd-bit-error session all
BFD bit error session information for ISIS(1)
                      ----------------------------------- 
Peer System ID : 2222.2222.2222        Interface : GE0/1/1           
Peer IP Address : 10.1.1.2             Local IP Address: 10.1.1.1
Status : RUN                           Type : L1(L1L2)                
Peer System ID : 2222.2222.2222        Interface : GE0/1/1           
Peer IP Address : 10.1.1.2             Local IP Address: 10.1.1.1
Status : RUN                           Type : L2(L1L2)                
Total BFD bit error session(s): 2

**Table 1** Description of the **display isis bfd-bit-error** command output
Item	Description
BFD Bit Error State	Status of BFD-based bit error detection on the interface: enable. disable.
Interface	Type and number of the local interface.
Total BFD bit error session(s)	Total number of BFD sessions used to detect bit errors.
Total interfaces	Number of interfaces in the IS-IS process.
Total BFD bit error enabled interfaces	Number of interfaces on which BFD-based bit error detection is enabled.
Peer System ID	System ID of the neighbor.
Peer IP Address	IP address of the neighbor.
Local IP Address	IP address of the local device.
Status	Status of the interaction between the IS-IS and BFD components: INIT: The function is being initialized. PEND_ADDACK: The BFD component has been notified to add a bit error detection session, but the BFD component has not responded. PEND_DELACK: The BFD component has been notified to delete a bit error session, but the BFD component has not responded. RUN: The function operates normally.
Type	Level. L1. L2. L1(L1L2). L2(L1L2). L1L2.