H3C S3610 Series Istruzioni per l'installazione

Command Manual – BFD-GR

H3C S3610&S5510 Series Ethernet Switches Table of Contents

Table of Contents

Chapter 1 BFD Configuration Commands..................................................................................1-1

1.1 BFD Configuration Commands..........................................................................................1-1

1.1.1 bfd authentication-mode..........................................................................................1-1

1.1.2 bfd detect-multiplier.................................................................................................1-2

1.1.3 bfd echo-source-ip ..................................................................................................1-3

1.1.4 bfd min-echo-receive-interval..................................................................................1-3

1.1.5 bfd min-receive-interval...........................................................................................1-4

1.1.6 bfd min-transmit-interval..........................................................................................1-5

1.1.7 bfd session init-mode..............................................................................................1-5

1.1.8 display bfd interface ................................................................................................1-6

1.1.9 display bfd paf.........................................................................................................1-8

1.1.10 display bfd session................................................................................................1-8

1.1.11 reset bfd session statistics..................................................................................1-10

1.1.12 snmp-agent trap enable bfd................................................................................1-11

Chapter 2 GR Commands.............................................................................................................2-1

2.1 GR Commands..................................................................................................................2-1

Command Manual – BFD-GR

H3C S3610&S5510 Series Ethernet Switches Chapter 1 BFD Configuration Commands

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Chapter 1 BFD Configuration Commands

1.1 BFD Configuration Commands

1.1.1 bfd authentication-mode

Syntax

bfd authentication-mode{md5 key-id key | sha1 key-id key | simple key-id

password }

undo bfd authentication-mode

View

Interface view

Parameters

md5: Uses message digest 5 (MD5) authentications.

sha1: Uses secure hash algorithm (SHA-1) authentication.

simple: Uses plaint text authentication.

key-id:Authentication key ID, in the range 1 to 255.

key: A string of 1 to 16 characters. It is displayed as a 24-byte cipher text string when

the display current-configuration command is executed.

password: Password, a string of 1 to 16 characters when the simple keyword is used. It

is displayed when the display current-configuration command is executed.

Description

Use the bfd authentication-mode command to configure the BFD authentication

mode and key on the interface.

Use the undo bfd authentication-mode command to remove the authentication mode

on the interface (only one authentication mode can be configured on an interface).

By default, no authentication is configured on an interface.

Command Manual – BFD-GR

H3C S3610&S5510 Series Ethernet Switches Chapter 1 BFD Configuration Commands

1-2

Note:

The authentication mode, key-id, key (or password) used by both ends trying to

establish a BFD session must be the same. If one end changes its authentication mode,

it sends the authentication packets in both the new and the old mode at the same time

until the other end also changes to the same authentication mode.

Examples

# Configure VLAN-interface 1 to support MD5 authentication, setting the authentication

key-id to 15 and authentication key to BfdKey.

<Sysname> system-view

[Sysname] interface vlan-interface 1

[Sysname-Vlan-interface 1] bfd authentication-mode md5 15 BfdKey

1.1.2 bfd detect-multiplier

Syntax

bfd detect-multiplier value

undo bfd detect-multiplier

View

Interface view

Parameters

value: Maximum number of consecutive BFD control packets that the remote device

fails to receive from the local device interface before considering the BFD session down,

in the range of 3 to 50.

Description

Use the bfd detect-multiplier command to configure the maximum number of

consecutive BFD control packets that the remote device fails to receive from the local

device before considering the BFD session down.

Use the undo bfd detect-multiplier command to restore the default.

The default is 5.

Examples

# Configure the detect multiplier as 6 on VLAN-interface 1.

<Sysname> system-view

[Sysname] interface vlan-interface 1

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H3C S3610&S5510 Series Ethernet Switches Chapter 1 BFD Configuration Commands

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[Sysname-Vlan-interface 1] bfd detect-multiplier 6

1.1.3 bfd echo-source-ip

Syntax

bfd echo-source-ip ip-address

undo bfd echo-source-ip

View

System view

Parameters

ip-address: Source IP address of BFD echo packets.

Description

Use the bfd echo-source-ip command to configure the source IP address of BFD

echo packets.

Use the undo bfd echo-source-ip command to remove the configured source IP

address of BFD echo packets.

Note that, since a large amount of ICMP redirect packets may be sent by the remote

device, causing network congestion, do not configurethe source IP address of the BFD

echo packets to belong to the same network segment as any interface address of the

device.

Examples

# Configure the source IP address of BFD echo packets as 10.1.1.1.

<Sysname> system-view

[Sysname] bfd echo-source-ip 10.1.1.1

1.1.4 bfd min-echo-receive-interval

Syntax

bfd min-echo-receive-interval value

undo bfd min-echo-receive-interval

View

Interface view

Parameters

value: Minimum BFD echo receiving interval, in milliseconds. This value is in the range

of 200 to 1000 and defaults to 400.

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H3C S3610&S5510 Series Ethernet Switches Chapter 1 BFD Configuration Commands

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Description

Use the bfd min-echo-receive-interval command to configure the minimum BFD

echo packet receiving interval on the interface.

Use the undo bfd min-echo-receive-interval command to restore the default.

The default value is 400 milliseconds.

Examples

# Configure the minimum BFD echo receiving interval on VLAN-interface 1 as 300

milliseconds.

<Sysname> system-view

[Sysname] interface vlan-interface 1

[Sysname-Vlan-interface 1] bfd min-echo-receive-interval 300

1.1.5 bfd min-receive-interval

Syntax

bfd min-receive-interval value

undo bfd min-receive-interval

View

Interface view

Parameters

value: Minimum interval for receiving BFD control packets, in milliseconds. It is a

multiple of 100 milliseconds. It is in the range of 200 ms to 1000 ms and defaults to 400

ms.

Description

Use the bfd min-receive-interval command to configure the minimum interval for

receiving BFD control packets.

If the remote device sends BFD control packets at an interval smaller than the minimum

receiving interval of the local device, the remote device changes its sending interval to

the minimum receiving interval of the local device.

Use the undo bfd min-receive-interval command to restore the default.

By default, the minimum interval for receiving BFD control packets is 400 milliseconds.

Examples

# Configure the minimum interval for receiving BFD control packets on VLAN-interface

1 as 300 milliseconds.

<Sysname> system-view

Command Manual – BFD-GR

H3C S3610&S5510 Series Ethernet Switches Chapter 1 BFD Configuration Commands

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[Sysname] interface vlan-interface 1

[Sysname-Vlan-interface 1] bfd min-receive-interval 300

1.1.6 bfd min-transmit-interval

Syntax

bfd min-transmit-interval value

undo bfd min-transmit-interval

View

Interface view

Parameters

value: Minimum interval for transmitting BFD control packets, in milliseconds. It is a

multiple of 100. It is in the range of 200 to 1000 and defaults to 400.

Description

Use the bfd min-transmit-interval command to configure the minimum interval for

transmitting BFD control packets.

The minimum interval for transmitting BFD control packets through an interface

ensures BFD control packets are not transmitted faster than the device can deal with.

The actual interval for transmitting BFD control packets at the local device should be

the greater between the minimum interval for sending BFD control packets configured

on the local interface and the minimum interval for receiving BFD control packets on the

remote device.

Use the undo bfd min-transmit-interval command to restore the default.

By default, the minimum BFD transmit interval is 400 milliseconds.

Examples

# Configure the minimum interval for transmitting BFD control packets on

VLAN-interface 1 as 300 milliseconds.

<Sysname> system-view

[Sysname] interface vlan-interface 1

[Sysname-Vlan-interface 1] bfd min-transmit-interval 300

1.1.7 bfd session init-mode

Syntax

bfd session init-mode{active | passive }

undo bfd session init-mode

Command Manual – BFD-GR

H3C S3610&S5510 Series Ethernet Switches Chapter 1 BFD Configuration Commands

1-6

View

System view

Parameters

active: Uses the active mode. In the active mode, upon being enabled with BFD, an

interface actively transmits a BFD control packet to the remote device.

passive: Uses the passive mode. In the passive mode, an interface does not actively

transmit a BFD control packet to the remote end; it transmits a BFD control packet only

after receiving a BFD control packet from the remote end.

Description

Use the bfd session init-mode command to configure the mode for establishing a

BFD session.

Use the undo bfd session init-mode command to restore the default. By default, BFD

sessions are established in the active mode.

Examples

# Configure the session establishment mode as passive.

<Sysname> system-view

[Sysname] bfd session init-mode passive

1.1.8 display bfd interface

Syntax

display bfd interface [ verbose ]

View

Any view

Parameters

verbose: Displays detailed interface information.

Description

Use the display bfd interface command to display information about BFD-enabled

interfaces.

Besides the information displayed by the display bfd interface command, the display

bfd interface verbose command displays brief session information of the interfaces.

Examples

# Display information about BFD-enabled interfaces.

Command Manual – BFD-GR

H3C S3610&S5510 Series Ethernet Switches Chapter 1 BFD Configuration Commands

1-7

<Sysname> display bfd interface

Total Interface Num: 1

Interface: Vlan-interface1 Session Num: 1

Min Trans Inter: 400ms Min Recv Inter: 400ms

DetectMult: 5 Min Echo Recv Inter: 400ms

Auth mode: Simple

# Display detailed information about BFD-enabled interfaces.

<Sysname> display bfd interface verbose

Total Interface Num: 1

Interface: Vlan-interface1 Session Num: 1

Min Trans Inter: 400ms Min Recv Inter: 400ms

DetectMult: 5 Min Echo Recv Inter: 400ms

Auth mode: Simple

LD/RD SourceAddr DestAddr ConnType State Mode

1 192.168.0.136 192.168.0.138 Direct Up Echo

Table 1-1 Description on the fields of the display bfd interface command

Field Description

Interface Interface name

Session Num Number of sessions established on the local interface

Min Trans Inter Expected minimum transmit interval configured on the interface

Min Recv Inter Expected minimum receive interval configured on the interface

DetectMult Session detection multiplier

Min Echo Recv

Inter Minimum interval for receiving echo packets

Auth mode Session authentication mode: simple, MD5, or SHA-1

LD Local ID of the session

RD Remote ID of the session

SourceAddr Source IP address of the session

DestAddr Destination IP address of the session

ConnType Connection type of the interface

State Session state

Mode Mode

Command Manual – BFD-GR

H3C S3610&S5510 Series Ethernet Switches Chapter 1 BFD Configuration Commands

1-8

1.1.9 display bfd paf

Syntax

display bfd paf

View

Any view

Parameters

None

Description

Use the display bfd paf command to display PAF configuration information.

Examples

# Display BFD PAF configuration information.

<Sysname> display bfd paf

BFD PAF Information:

Control Packet Min-Transmit-Interval(ms): 200

Control Packet Min-Receive-Interval(ms) : 200

Echo Packet Min-Receive-Interval(ms) : 200

Max Session Number : 10

Table 1-2 Description on the fields of the display bfd paf command

Field Description

Control Packet

Min-Transmit-Interval(ms) Minimum interval for transmitting control

packets

Control Packet

Min-Receive-Interval(ms) Minimum interval for receiving control

packets

Echo Packet Min-Receive-Interval(ms) Minimum interval for receiving echo

packets

Max Session Number Supported maximum number of

sessions

1.1.10 display bfd session

Syntax

display bfd session [ verbose ]

Command Manual – BFD-GR

H3C S3610&S5510 Series Ethernet Switches Chapter 1 BFD Configuration Commands

1-9

View

Any view

Parameters

verbose: Displays detailed session information.

slot slot-id: Displays the session information of the specified board/slot.

Description

Use the display bfd session command to display BFD session information. This

command displays the following interface-related information: session local ID, session

remote ID, source address, destination address, session state, length of time before

session detection timer expires, and the name of the interface of the session.

Besides the information displayed by the display bfd session command (except the

length of time before session detection timer expires), the display bfd session

verbose command displays:

Minimum transmit interval, minimum receive interval, actual transmit interval, actual

session detection timer, packets sent and received by the session, time when the

session was established, last time when the session was down, last time when the

session was up, authentication mode, connection type, registered protocol, and

diagnostic information.

Examples

# Display information about all the BFD sessions.

<Sysname> display bfd session

Total Session Num: 1 Init Mode: Active

Session Working Under Echo Mode:

LD SourceAddr DestAddr State Holdtime Interface

1 192.168.0.136 192.168.0.138 Up 1700ms Vlan1

# Display detailed information about the sessions maintained by the device.

<Sysname> display bfd session verbose

Total Session Num: 1 Init Mode: Active

Session Working Under Echo Mode:

Local Discr: 1

Source IP: 192.168.0.136 Destination IP: 192.168.0.138

Session State: Up Interface: Vlan-interface1

Min Recv Inter: 400ms Act Trans Inter: 400ms

Act Detect Inter: 2000ms Hold Time: 1700ms

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