HDLC configuration commands 1

link-protocol hdlc· 1

timer hold· 1

HDLC link bundling configuration commands 1

bundle id· 1

bundle max-active links 1

bundle member-priority· 2

bundle min-active bandwidth· 3

bundle min-active links 3

default 4

description· 5

display bundle member hdlc-bundle· 5

display interface hdlc-bundle· 7

interface hdlc-bundle· 10

mtu· 11

reset counters interface· 11

shutdown· 12

 

link-protocol hdlc

Syntax

link-protocol hdlc

View

POS interface view

Default level

2: System level

Parameters

None

Description

Use the link-protocol hdlc command to specify HDLC as the link layer protocol of a POS interface.

HDLC can carry network layer protocols such as IP and IPX.

The default link layer protocol of an interface is PPP.

Related commands: timer hold.

Examples

# Specify HDLC as the link layer protocol of POS 7/1/2.

<Sysname> system-view

[Sysname] interface Pos 7/1/2

[Sysname-Pos7/1/2] link-protocol hdlc

timer hold

Syntax

timer hold seconds

undo timer hold

View

POS interface view

Default level

2: System level

Parameters

seconds: Link status polling interval (in seconds), in the range of 0 to 32767.

Description

Use the timer hold command to set the link status polling interval on a POS interface.

Use the undo timer hold command to restore the default.

The default link status polling interval is 10 seconds on a POS interface.

The two ends of a link must use the same link status polling interval.

Setting the link status polling interval to zero disables link status check.

Examples

# Set the link status polling interval to 100 seconds on POS 7/1/2.

<Sysname> system-view

[Sysname] interface Pos 7/1/2

[Sysname-Pos7/1/2] timer hold 100

 

bundle id

Syntax

bundle id bundle-id

undo bundle id

View

POS interface view

Default level

2: System level

Parameters

bundle-id: Number of an HDLC link bundle. The value range for this argument is 1 to 240.

Description

Use the bundle id command to assign a POS interface to an HDLC link bundle.

Use the undo bundle id command to remove a POS interface from an HDLC link bundle.

You cannot assign interfaces configured with the following features to an HDLC link bundle: IPv4 addresses, IPv4 unnumbered, IPv6 addresses, and unicast reverse path forwarding (URPF). After an interface is assigned to an HDLC link bundle, you cannot configure any of these features on the interface.

You can assign only physical POS interfaces to HDLC link bundles.

An interface can be the member of only one HDLC link bundle. To move an interface from one HDLC link bundle to another HDLC link bundle, remove the interface from the current HDLC link bundle first.

The link layer protocol of an interface to be assigned to an HDLC link bundle can only be HDLC. You cannot change the link layer protocol of an HDLC link bundle member interface.

You can assign physical POS interfaces to an HDLC link bundle before you create the bundle.

Examples

# Assign POS 5/1/1 to HDLC link bundle numbered 1.

<Sysname> system-view

[Sysname] interface Pos 5/1/1

[Sysname-Pos5/1/1] bundle id 1

bundle max-active links

Syntax

bundle max-active links number

undo bundle max-active links

View

HDLC link bundle interface view

Default level

2: System level

Parameters

number: Maximum number of selected member interfaces. The value range for this argument is 1 to 8.

Description

Use the bundle max-active links command to limit the number of selected interfaces in an HDLC link bundle.

Use the undo bundle max-active links command to remove the limit.

By default, no limit is set on the maximum number of selected member interfaces in an HDLC link bundle.

The value specified using this command cannot be smaller than that specified using the bundle min-active links command.

Use the bundle max-active links command together with the bundle member-priority command to make sure that the peer interfaces of a link always have the same selected status. If one end is selected but the other end is unselected, communication failure will occur.

Related commands: bundle min-active links and bundle member-priority.

Examples

# Limit the number of selected member interfaces in HDLC link bundle 1 to 8.

<Sysname> system-view

[Sysname] interface Hdlc-bundle 1

[Sysname-Hdlc-bundle1] bundle max-active links 8

bundle member-priority

Syntax

bundle member-priority priority

undo bundle member-priority

View

POS interface view

Default level

2: System level

Parameters

priority: Bundling priority of an HDLC link bundle member interface. The value range for this argument is 1 to 65535.

Description

Use the bundle member-priority command to set the bundling priority of an HDLC-enabled POS interface.

Use the undo bundle member-priority command to restore the default.

The default bundling priority of an HDLC-enabled POS interface is 32768.

A higher priory value equals a lower bundling priority.

Examples

# Set the bundling priority of the HDLC-enabled interface POS 5/1/1 to 1.

<Sysname> system-view

[Sysname] interface Pos 5/1/1

[Sysname-Pos5/1/1] bundle member-priority 1

bundle min-active bandwidth

Syntax

bundle min-active bandwidth bandwidth

undo bundle min-active bandwidth

View

HDLC link bundle interface view

Default level

2: System level

Parameters

bandwidth: Minimum amount of bandwidth (in kbps) required to bring up the HDLC link bundle. The value range for this argument is 64 to 1342177280.

Description

Use the bundle min-active bandwidth command to set the minimum amount of bandwidth required to bring up the HDLC link bundle.

Use the undo bundle min-active bandwidth command to remove the limit.

By default, no limit is set on the minimum amount of bandwidth required to bring up an HDLC link bundle.

Examples

# Set the minimum amount of bandwidth required to bring up HDLC link bundle 1 to 1000 kbps.

<Sysname> system-view

[Sysname] interface Hdlc-bundle 1

[Sysname-Hdlc-bundle1] bundle min-active bandwidth 1000

bundle min-active links

Syntax

bundle min-active links number

undo bundle min-active links

View

HDLC link bundle interface view

Default level

2: System level

Parameters

number: Number of selected member interfaces required to bring up the HDLC link bundle. The value range for this argument is 1 to 8.

Description

Use the bundle min-active links command to set the minimum number of selected interfaces required to bring up the HDLC link bundle.

Use the undo bundle min-active links command to remove the limit.

By default, no limit is set on the minimum number of selected member interfaces required to bring up an HDLC link bundle.

The value specified by using this command cannot be bigger than that specified using the bundle max-active links command.

Related commands: bundle max-active links.

Examples

# Set the number of selected member interfaces required to bring up HDLC link bundle 1 to 5.

<Sysname> system-view

[Sysname] interface Hdlc-bundle 1

[Sysname-Hdlc-bundle1] bundle min-active links 5

default

Syntax

default

View

HDLC bundle interface view

Default level

2: System level

Parameters

None

Description

Use the default command to restore the default settings for an HDLC bundle interface.

This command might fail to restore the default settings for some commands for reasons such as command dependencies and system restrictions. You can use the display this command in interface view to check for these commands, and perform their undo forms or follow the command reference to individually restore their default settings. If your restoration attempt still fails, follow the error message to resolve the problem.

 

CAUTION: The default command might interrupt ongoing network services. Make sure you are fully aware of the impacts of this command when you perform it on a live network.

 

Examples

# Restore the default settings for HDLC link bundle interface 1.

<Sysname> system-view

[Sysname] interface Hdlc-bundle 1

[Sysname-Hdlc-bundle1] default

This command will restore the default settings. Continue? [Y/N]:y

description

Syntax

description text

undo description

View

HDLC link bundle interface view

Default level

2: System level

Parameters

text: Description of an interface, a case-sensitive string of 1 to 80 characters.

Description

Use the description command to configure the description string of an HDLC link bundle interface.

Use the undo description command to restore the default.

By default, the description of an interface is the interface name followed by the Interface string, for example, Hdlc-bundle1 Interface.

Examples

# Configure the description of HDLC link bundle interface 1 as hdlc-bundle interface.

<Sysname> system-view

[Sysname] interface Hdlc-bundle 1

[Sysname-Hdlc-bundle1] description hdlc-bundle interface

display bundle member hdlc-bundle

Syntax

display bundle member hdlc-bundle [ bundle-id ] [ slot slot-number ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

bundle-id: Number of an HDLC link bundle. The value range for this argument is 1 to 240.

slot slot-number: Specifies the slot number of an HDLC link bundle interface.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

exclude: Displays all lines that do not match the specified regular expression.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display bundle member hdlc-bundle command to display information about a specific HDLC link bundle.

The command output includes the following information:

·           Basic information about the HDLC link bundle, including the limit on the number of selected member interfaces in the HDLC link bundle, the number of selected member interfaces required to bring up the HDLC link bundle, the minimum amount of bandwidth required to bring up the HDLC link bundle, the number of selected member interfaces, and the total bandwidth of all the selected member interfaces

·           The slot number of the HDLC link bundle interface

·           Information about individual member interfaces, including the name, state, bandwidth, and bundling priority of each member interface

If you specify neither bundle-id nor slot-number, this command displays information about all HDLC link bundle interfaces on the active main control board.

If you specify bundle-id but not slot-number, this command displays information about the specified HDLC link bundle interface on the active main control board.

If you specify slot-number but not bundle-id, this command displays information about all HDLC link bundle interfaces on the standby main control board or the specified interface board.

If you specify both slot-number and bundle-id, this command displays information for the specified HDLC link bundle interface on the standby main control board or the specified interface board.

The HDLC link bundling information displayed for the active main control board includes information about the unselected member interfaces, limit on the number of selected member interfaces in the HDLC link bundle, number of selected member interfaces required to bring up the HDLC link bundle, and minimum amount of bandwidth required to bring up the HDLC link bundle; the information displayed for the standby main control board or any other interface board does not include such information.

Examples

# Display information about HDLC link bundle 1 on the active main control board.

<Sysname> display bundle member Hdlc-bundle 1

 bundle is Hdlc-bundle1, slot 0

 max-active links:2, min-active links:2, min-active bandwidth: 1000000 kbps

  Selected members: 2, total bandwidth: 1244160 kbps

  State: S -- Selected, R -- Ready, N -- Negotiated, I -- Initial

  Member                   State             Bandwidth(kbps)           Priority

  Pos5/1/1                     S                622080                      1

  Pos5/1/2                     S                622080                      2

  Pos5/1/3                     R                622080                      32768

  Pos5/1/4                     R                622080                      65535

  Pos5/1/5                     N                155520                      32768

  Pos5/1/6                     N                155520                      32768

  Pos5/1/7                     I                   -                         32768

# Display information about HDLC link bundle 1 on the interface card in slot 1.

<Sysname> display bundle member Hdlc-bundle 1 slot 1

bundle is Hdlc-bundle1, slot 1

  Selected members: 2, total bandwidth: 1244160 kbps

  Member                  State                  Bandwidth(kbps)      Priority

  Pos5/1/1                    S                  622080                    1

  Pos5/1/2                    S                  622080                    2

Table 1 Output description

Field	Description
bundle	Name of the HDLC link bundle.
slot	Number of the interface board whose HDLC link bundling information is displayed.
max-active links	Limit on the number of selected member interfaces in the HDLC link bundle (This field will not be displayed if you have not limited the number of selected member interfaces in the HDLC link bundle).
min-active links	Number of selected member interfaces required to bring up the HDLC link bundle (This field will not be displayed if you have not set the number of selected member interfaces required to bring up the HDLC link bundle).
min-active bandwidth	Minimum amount of bandwidth required to bring up the HDLC link bundle (This field will not be displayed if you have not set the minimum amount of bandwidth required to bring up the HDLC link bundle).
Selected members	Current number of selected member interfaces.
total bandwidth	Total bandwidth of all the selected member interfaces in the HDLC link bundle.
Member	Name of a member interface.
State: S -- Selected, R -- Ready, N -- Negotiated, I -- Initial	State of a member interface, which can be: ·       S—Selected (On an interface board, only information about member interfaces in this state will be displayed) ·       R—Ready ·       N—Negotiated ·       I—Initial
Bandwidth(kbps)	Bandwidth (in kbps) of a member interface.
Priority	Bundling priority of a member interface.

 

display interface hdlc-bundle

Syntax

display interface hdlc-bundle bundle-id [ brief ] [ | { begin | exclude | include } regular-expression ]

display interface [ hdlc-bundle ] [ brief [ down ] ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

bundle-id: Number of an HDLC link bundle. The value range for this argument is 1 to 240.

brief: Displays brief interface information. If you do not specify this keyword, the command displays detailed interface information.

down: Displays information about interfaces in the DOWN state and the link down causes. If you do not specify this keyword, this command displays information about interfaces in all states.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

exclude: Displays all lines that do not match the specified regular expression.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use the display interface hdlc-bundle command to display information about an HDLC link bundle interface.

If you do not specify the hdlc-bundle keyword, this command displays information about all interfaces.

If you specify the hdlc-bundle keyword without any HDLC link bundle interface number, this command displays information about all HDLC link bundle interfaces.

Examples

# Display information about HDLC link bundle interface 1.

<Sysname> display interface Hdlc-bundle 1

Hdlc-bundle1 current state: UP

Line protocol current state: UP

Description: Hdlc-bundle1 Interface

The Maximum Transmit Unit is 1500

Internet Address is 1.1.1.2/24 Primary

Link layer protocol is HDLC

Physical is HDLC-BUNDLE, baudrate: 155520 kbps

Output queue : (Urgent queuing : Size/Length/Discards)  0/100/0

Output queue : (Protocol queuing : Size/Length/Discards)  0/500/0

Output queue : (FIFO queuing : Size/Length/Discards)  0/75/0

 Last clearing of counters:  Never

    Last 300 seconds input rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec

    Last 300 seconds output rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec

    0 packets input, 0 bytes, 0 drops

    0 packets output, 0 bytes, 0 drops

# Display brief information about HDLC link bundle interface 1.

<Sysname> display interface Hdlc-bundle 1 brief

The brief information of interface(s) under route mode:

Link: ADM - administratively down; Stby - standby

Protocol: (s) - spoofing

Interface            Link Protocol Main IP         Description

HBDL1                UP   UP(s)    --

# Display information about all HDLC link bundle interfaces in the DOWN state.

<Sysname> display interface Hdlc-bundle brief down

The brief information of interface(s) under route mode:

Link: ADM - administratively down; Stby - standby

Interface            Link Cause

HBDL2                DOWN Not connected

Table 2 Output description

Field	Description
HDLC-bundle1 current state	Physical state of the HDLC link bundle interface: ·       DOWN (Administratively)—The interface is shut down using the shutdown command. ·       DOWN—The interface is administratively up but physically down. ·       UP—The interface is up both administratively and physically.
Line protocol current state	Link layer protocol state of the HDLC link bundle interface: ·       DOWN—The link layer protocol of the interface is down, indicating that the HDLC link bundle probably contains no selected member interface. ·       UP—The link layer protocol of the interface is up.
Description	Description of the HDLC link bundle interface.
The Maximum Transmit Unit	Maximum transmission unit (MTU) on the HDLC link bundle interface.
Internet Address	IP address of the HDLC link bundle interface.
Link layer protocol	Link layer protocol used by the HDLC link bundle interface.
Physical is HDLC-BUNDLE	The physical type of the HDLC link bundle interface is HDLC bundle.
baudrate	Baudrate of the HDLC link bundle interface.
Output queue : (Urgent queuing : Size/Length/Discards)  0/100/0 Output queue : (Protocol queuing : Size/Length/Discards)  0/500/0 Output queue : (FIFO queuing : Size/Length/Discards)  0/75/0	Traffic statistics for each output queue on the interface, including the number of packets in the queue (the queue size), the maximum number of packets that the queue can hold (queue length), and the number of dropped packets. In the sample output, the output queues on the interface include an urgent queue, a protocol queue, and a FIFO queue.
Last 300 seconds input/output rate	Average incoming/outgoing traffic rate in Bps/bps/pps in the last 300 seconds.
packets input/output, bytes, drops	Incoming and outgoing traffic size in packets/bytes on the interface and the number of dropped incoming/outgoing packets.
The brief information of interface(s) under route mode	Brief information about Layer 3 interfaces.
Link: ADM - administratively down; Stby - standby	Link status: ·       ADM—The interface has been administratively shut down. To recover its physical state, perform the undo shutdown command. ·       Stby—The interface is operating as a backup interface.
Protocol: (s) - spoofing	If the network layer protocol state of an interface is shown as UP, but its link is an on-demand link or not present at all, the protocol attribute includes the spoofing flag (an s in parentheses).
Interface	Abbreviated interface name.
Link	Physical link state of the interface: ·       UP—The link is up. ·       ADM—The link has been administratively shut down. To recover its physical state, perform the undo shutdown command.
Protocol	Protocol connection state of the interface, which can be UP, DOWN, or UP(s).
Main IP	The main IP address of the interface.
Description	Description of the interface.
Cause	The cause of a DOWN physical link. If the port has been shut down with the shutdown command, this field displays Administratively. To restore the physical state of the interface, use the undo shutdown command.

 

interface hdlc-bundle

Syntax

interface hdlc-bundle bundle-id

undo interface hdlc-bundle bundle-id

View

System view

Default level

2: System level

Parameters

bundle-id: Number of an HDLC link bundle interface. The value range for this argument is 1 to 240.

Description

Use the interface hdlc-bundle command to create an HDLC link bundle interface and enter its view. If the HDLC link bundle interface already exists, you enter the HDLC link bundle interface view directly.

Use the undo interface hdlc-bundle command to remove an HDLC link bundle interface.

Examples

# Create HDLC link bundle interface 1 and enter its view.

<Sysname> system-view

[Sysname] interface Hdlc-bundle 1

[Sysname-Hdlc-bundle1]

mtu

Syntax

mtu size

undo mtu

View

HDLC link bundle interface view

Default level

2: System level

Parameters

size: Maximum transmission unit (MTU) in bytes on an HDLC link bundle interface. The value range for this argument is 46 to 10240.

Description

Use the mtu command to set the MTU size for an HDLC link bundle interface.

Use the undo mtu command to restore the default.

By default, the MTU size of an HDLC link bundle interface is 1500 bytes.

Examples

# Set the MTU size of HDLC link bundle interface 1 to 1430 bytes.

<Sysname> system-view

[Sysname] interface Hdlc-bundle 1

[Sysname-Hdlc-bundle1] mtu 1430

reset counters interface

Syntax

reset counters interface [ hdlc-bundle [ bundle-id ] ]

View

User view

Default level

2: System level

Parameters

bundle-id: ID of an HDLC link bundle interface.

Description

Use the reset counters interface command to clear the statistics of an HDLC link bundle interface.

Before collecting traffic statistics within a specific period of time on an interface, you need to clear the existing statistics.

If you specify neither hdlc-bundle nor bundle-id, this command clears the statistics of all interfaces.

If you specify hdlc-bundle but not bundle-id, this command clears the statistics of all HDLC link bundle interfaces.

If you specify both hdlc-bundle and bundle-id, this command clears the statistics of the specified HDLC link bundle interface.

Examples

# Clear the statistics of HDLC link bundle interface HDLC-bundle 1.

<Sysname> reset counters interface Hdlc-bundle 1

shutdown

Syntax

shutdown

undo shutdown

View

HDLC link bundle interface view

Default level

2: System level

Parameters

None

Description

Use the shutdown command to shut down an HDLC link bundle interface.

Use the undo shutdown command to bring up an HDLC link bundle interface.

By default, an HDLC link bundle interface is up.

Enabling/disabling an HDLC link bundle interface does not enable or disable any member interface in the HDLC link bundle, but the operation can affect the selected state of the member interfaces. When an HDLC link bundle interface is disabled, no member interface can be in the selected state to forward traffic.

Examples

# Shut down HDLC link bundle interface 1.

<Sysname> system-view

[Sysname] interface Hdlc-bundle 1

[Sysname-Hdlc-bundle1] shutdown