Use the display fr dlci-switch command to display the information about the configured FR switching to check if the frame relay switching of a user is correctly configured.

The interface identified by interface-type interface-number can only be a main interface. If no interface is specified, this command displays the information about all the main interfaces with frame relay enabled.

Examples

# Display the information of the configured FR switching.

<Sysname> display fr dlci-switch

Frame relay switch statistics

Status Interface(Dlci) <----------> Interface(Dlci)

Inactive Serial2/1(100) Serial2/0(300)

Table 1-1 display fr dlci-switch command output description

Field	Description
Frame relay switch statistics	The statistics of frame relay switch
Status	The status of frame relay switching function
Interface(Dlci) <----------> Interface(Dlci)	Input interface and its DLCI, output interface and its DLCI.

display fr inarp-info

Syntax

display fr inarp-info [ interface interface-type interface-number ]

View

Any view

Default Level

1: Monitor level

Parameters

interface interface-type interface-number: Specifies an interface by its type and number. It can only be a main interface.

Description

Use the display fr inarp-info command to display statistics about frame relay inverse ARP (INARP) packets, including requests and replies, for the specified or all interfaces.

You may use this command to diagnose whether INARP is operating normally.

If no interface is specified, this command displays statistics about frame relay INARP packets on all the main interfaces.

Related commands: fr inarp.

Examples

# Display the statistics on frame relay INARP packets.

<Sysname> display fr inarp-info

Frame relay InverseARP statistics for interface Serial2/0 (DTE)

In ARP request Out ARP reply Out ARP request In ARP reply

0 0 1 1

Table 1-2 display fr inarp-info command output description

Field	Description
Frame relay InverseARP statistics for interface Serial2/0 (DTE)	Display the statistics on frame relay INARP packets for the interface
In ARP request	Received ARP requests
Out ARP reply	Transmitted ARP replies
Out ARP request	Transmitted ARP requests
In ARP reply	Received ARP replies

display fr interface

Syntax

display fr interface [ interface-type { interface-number | interface-number.subnumber } ]

View

Any view

Default Level

1: Monitor level

Parameters

interface-type { interface-number | interface-number.subnumber }: Specifies an interface by its type and number. The interface-number argument is a main interface number. The subnumber argument is a subinterface number, in the range 0 to 1023.

Description

Use the display fr interface command to display information about the specified or all frame relay interfaces.

You can specify a main interface or a subinterface by providing the interface-type { interface-number | interface-number.subnumber } argument combination.

Examples

# Display information about all frame relay interfaces.

<Sysname> display fr interface

Serial2/0, multi-point, protocol up

Serial2/0.1, point-to-point, protocol down

Table 1-3 display fr interface command output description

Field	Description
Serial2/0, multi-point, protocol up	Frame relay interface, its type and link layer state
Serial2/0.1, point-to-point, protocol down	Subinterface, its type and link layer state

display fr lmi-info

Syntax

display fr lmi-info [ interface interface-type interface-number ]

View

Any view

Default Level

1: Monitor level

Parameters

interface interface-type interface-number: Specifies an interface by its type and number.

Description

Use the display fr lmi-info command to display the statistics of LMI protocol frame.

The LMI protocol maintains current frame relay link by sending status enquiry packets and status packets. The displayed information helps you diagnose faults.

If no interface is specified, this command displays LMI protocol frame statistics on all interfaces.

Examples

# Display the statistics about LMI protocol frames.

<Sysname> display fr lmi-info

Frame relay LMI statistics for interface Serial2/1 (DTE, Q933)

T391DTE = 10 (hold timer 10)

N391DTE = 6, N392DTE = 3, N393DTE = 4

out status enquiry = 96, in status = 85

status timeout = 3, discarded messages = 3

Frame relay LMI statistics for interface Serial2/0 (DCE, Q933)

T392DCE = 15, N392DCE = 3, N393DCE = 4

in status enquiry = 0, out status = 0

status enquiry timeout = 0, discarded messages = 0

Table 1-4 display fr lmi-info command output description

Field	Description
Frame relay LMI statistics for interface Serial2/1 (DTE, Q933)	Terminal type and LMI protocol type for the frame relay interface
T391DTE = 10 (hold timer 10)	DTE-side T.391 setting
N391DTE = 6, N392DTE = 3, N393DTE = 4	DTE-side N.391, N.392, and N.393 settings
out status enquiry = 96, in status = 85	Number of the state enquiry packets sent out through the interface and that of the state enquiry packets received through the interface
status timeout = 3, discarded messages = 3	Number of the state packets that are timed out and that of the discarded packets
Frame relay LMI statistics for interface Serial2/0 (DCE, Q933)	Serial2/0 (a frame relay interface) is a DCE interface conformed with the standard described in Q.933 appendix A
T392DCE = 15, N392DCE = 3, N393DCE = 4	The T392, N392, and N393 parameters of the DCE interface
in status enquiry = 0, out status = 0	Number of the status packets received through the interface and that of the status packets sent out through the interface
status enquiry timeout = 0, discarded messages = 0	Number of the state packets that are timed out and that of the discarded packets

display fr map-info

Syntax

display fr map-info [ interface interface-type { interface-number | interface-number.subnumber } ]

View

Any view

Default Level

1: Monitor level

Parameters

interface interface-type { interface-number | interface-number.subnumber }: Specifies an interface by its type and number. It can be a main or subinterface. The interface-number argument is a main interface number. The subnumber argument is a subinterface number, in the range 0 to 1023.

Description

Use the display fr map-info command to display all frame relay address mappings or the one for the specified interface.

This command displays whether the static address map entries are correct and whether dynamic address mapping operates normally.

Related commands: fr map ip, fr inarp.

Examples

# Display the frame relay address map table.

<Sysname> display fr map-info

Map Statistics for interface Serial2/0 (DTE)

DLCI = 100, IP INARP 100.100.1.1, Serial2/0

create time = 2002/10/21 14:48:44, status = ACTIVE

encapsulation = ietf, vlink = 14, broadcast

DLCI = 200, IP INARP 100.100.1.1, Serial2/0

create time = 2002/10/21 14:34:42, status = ACTIVE

encapsulation = ietf, vlink = 0, broadcast

DLCI = 300, IP 1.1.1.1, Serial2/0

create time = 2002/10/21 15:03:35, status = ACTIVE

encapsulation = ietf, vlink = 15

Table 1-5 display fr map-info command output description

Field	Description
Map Statistics for interface Serial2/0 (DTE)	Display the frame relay address map. The interface operates in DTE mode.
DLCI = 100, IP INARP 100.100.1.1, Serial2/0	The PVC with DLCI 100 is mapped to remote IP address 100.100.1.1 through INARP. The PVC is configured on the interface Serial2/0 (If the keyword INAPP is not provided, you need to manually configure established address mapping.)
create time = 2002/10/21 14:48:44	Time and date when the map entry was created
status = ACTIVE	State of the map entry
encapsulation = ietf	Encapsulation is set to IETF
broadcast	Broadcasts are permitted

display fr pvc-info

Syntax

display fr pvc-info [ interface interface-type { interface-number | interface-number.subnumber } ] [ dlci-number ]

View

Any view

Default Level

1: Monitor level

Parameters

dlci-number: virtual circuit number of frame relay interface. It ranges from 16 to 1007.

Description

Use the display fr pvc-info command to display state information on FR PVCs and statistics about data transmitted and received on them.

If the command is performed with no interface or DLCI specified, the displayed information covers all PVCs; if with an interface (a main interface or subinterface) specified, the displayed information covers only the PVCs on the interface; and if with a DLCI specified, the displayed information covers only the specified PVC.

Related commands: fr dlci.

Examples

# Display the frame relay PVC table.

<Sysname> display fr pvc-info

PVC statistics for interface Serial2/0 (DTE, physical UP)

DLCI = 100, USAGE = UNUSED (0000), Serial2/0

create time = 2000/04/01 23:55:39, status = active

in BECN = 0, in FECN = 0

in packets = 0, in bytes = 0

out packets = 0, out bytes = 0

DLCI = 102, USAGE = LOCAL (0010), INTERFACE = Serial2/0.1

create time = 2000/04/01 23:56:14, status = active

in BECN = 0, in FECN = 0

in packets = 0, in bytes = 0

out packets = 0, out bytes = 0

Table 1-6 display fr pvc-info command output description

Field	Description
PVC statistics for interface Serial2/0 (DTE, physical UP)	Display information about PVCs on the frame relay interface Serial 2/0. The interface operates in as a DTE. The physical state of the interface is up.
DLCI = 100, USAGE = UNUSED (0000), INTERFACE = Serial2/0	DLCI 100 was assigned to the PVC through negotiation of LMI with DCE end. Its state is unused, and it belongs to interface Serial 2/0.
create time = 2000/04/01 23:55:39, status = active	Date and time creating the PVC and the state of the PVC
in BECN = 0, in FECN = 0	Received BECNs and FECNs
in packets = 0, in bytes = 0	Received frames and bytes
out packets = 0, out bytes = 0	Transmitted frames and bytes

display fr statistics

Syntax

display fr statistics [ interface interface-type interface-number ]

View

Any view

Default Level

1: Monitor level

Parameters

interface interface-type interface-number: Specifies an interface by its type and number. This interface must be a main interface.

Description

Use the display fr statistics command to display current frame relay statistics about received and transmitted packets for the specified or all interfaces.

You may use this command to check frame relay traffic statistics and diagnose problems.

Examples

# Display frame relay statistics about received and transmitted packets.

<Sysname> display fr statistics

Frame relay packet statistics for interface Serial2/0 (DTE)

in packets = 84, in bytes = 1333

out packets = 92, out bytes = 1217

discarded in packets = 13, discarded out packets = 0

Frame relay packet statistics for interface Serial2/0.1 (DCE)

in packets = 0, in bytes = 0

out packets = 0, out bytes = 0

discarded in packets = 0, discarded out packets = 0

Table 1-7 display fr statistics command output description

Field	Description
Frame relay packet statistics for interface Serial2/0 (DTE)	Display frame relay packet statistics for the interface Serial 2/0, which operates as a DTE.
in packets = 84, in bytes = 1333	Received packets and bytes
out packets = 92, out bytes = 1217	Transmitted packets and bytes
discarded in packets = 13, discarded out packets = 0	Dropped incoming/outgoing packets

display interface mfr

Syntax

display interface mfr [ interface-number | interface-number.subnumber ]

View

Any view

Default Level

1: Monitor level

Parameters

interface-number: MFR interface number, in the range 0 to 1023.

interface-number.subnumber: MFR subinterface number, of which, interface-number is the main interface number, and subnumber is subinterface number. The subnumber argument ranges from 0 to 1023.

Description

Use the display interface mfr command to display the information about an MFR interface or an MFR sub-interface, including configuration, state, and packet statistics.

If you do not specify an MFR interface or an MFR sub-interface, this command displays the information about all the MFR interfaces.

Examples

# Display the configuration and status information about interface MFR 4.

<Sysname> display interface mfr 4

MFR4 current state : UP

Line protocol current state : UP

Description : MFR4 Interface

The Maximum Transmit Unit is 1500

Internet Address is 12.12.12.2/16 Primary

Link layer protocol is FR IETF

LMI DLCI is 0, LMI type is Q.933a, frame relay DTE

LMI status enquiry sent 435, LMI status received 435

LMI status timeout 0, LMI message discarded 0

Physical is MFR, baudrate: 2048000 bps

Output queue: (Urgent queue: Size/Length/Discards) 0/50/0

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

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

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

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

1058 packets input, 832389 bytes, 0 drops

619 packets output, 828190 bytes, 0 drops

Table 1-8 display interface mfr command output description

Field	Description
MFR4 current state : UP	Physical layer state
Line protocol current state : UP	Link layer state
Description : MFR4 Interface	Interface description
The Maximum Transmit Unit is 1500	MTU
Internet Address is 12.12.12.2/16	IP address and mask
link-protocol is FR IETF	Link layer protocol
LMI DLCI is 0, LMI type is Q.933a, frame relay DTE	DLCI number used by LMI, LMI type, port type and operating mode
LMI status enquiry sent 435, LMI status received 435	Transmitted and received LMI status enquiry messages
LMI status timeout 0, LMI message discarded 0	LMI timeout messages and dropped LMI messages
Physical is MFR	Physical interface is MFR
Output queue: (Urgent queue: Size/Length/Discards) 0/50/0 Output queue: (Protocol queue: Size/Length/Discards) 0/500/0 Output queue: (FIFO queuing: Size/Length/Discards) 0/75/0	Statistics on the packets of the following interface output queues: l Urgent queue l Protocol queue l FIFO queue
Last 300 seconds input: 0 bytes/sec, 0 packets/sec	Input rate of the interface within the last five minutes
Last 300 seconds output: 0 bytes/sec, 0 packets/sec	Output rate of the interface within the last five minutes
1058 packets input, 832389 bytes, 0 drops	Packets and bytes received on the interface and packets dropped as the result of full receive buffer
619 packets output, 828190 bytes, 0 drops	Packets and bytes transmitted on the interface and packets dropped as the result of full transmit buffer

display mfr

Syntax

display mfr [ interface interface-type interface-number | verbose ]

View

Any view

Default Level

1: Monitor level

Parameters

interface interface-type interface-number: Specifies an interface by its type and number.

verbose: Displays detailed statistics information, including the number of controlling packets sent and received.

Description

Use the display mfr command to display configuration and statistics information of multilink frame relay bundle and bundle link. If you do not specify an interface or use the verbose keyword, the command displays brief information about all interfaces.

Examples

# Display configuration and state information about all frame relay bundles and frame relay bundle links.

<Sysname> display mfr

Bundle interface:MFR1, Bundle state = up, Bundle class = A,

fragment disabled, MFR bundle fragment size = 222

original packet be assembled/fragmentized (in/out): 0/0

droped fragment (in/out): 0/0

Bundle name = 2

Bundle links:

Serial2/0, PHY state = up, link state = up, Link name : Serial2/0

Table 1-9 display mfr command output description

Field	Description
Bundle interface	Bundle interface
Bundle state	Operating state of the bundle interface.
Bundle class	Class A indicates if there is one bundle link is in up state, the bundle is flagged as up. Moreover, all bundle links should be tagged as down before the bundle is down.
fragment disabled	Indicates whether the fragment is disabled (disabled in this sample output)
MFR bundle fragment size	Maximum fragment size allowed by the FR link
Bundle name = MFR0	Name of multilink frame relay bundle
Bundle links	Physical interfaces of the links in the bundle.
Serial2/0, PHY state = up, link state = up, Link name = Serial2/0	Physical interface on the bundle link, the operating state of the physical layer interface and link layer interface, the link name of the bundle link (corresponding name on the physical interface by default)

# Display detailed state information about all frame relay bundle links.

<Sysname> display mfr verbose

Bundle interface:MFR1, Bundle state = up, Bundle class = A,

fragment enabled, MFR bundle fragment size = 222

original packet be assembled/fragmentized (in/out): 0/0

droped fragment (in/out): 0/0

Bundle name = 2

Bundle links:

LID : Serial2/0 Peer LID: Serial2/0

Bound to MFR1(BID:2)

Physical state: up, link state: up,

Bundle link fragment size: 222,

Bundle Link statistics:

Hello(TX/RX): 10/10 Hello_ack(TX/RX): 10/10

Add_link(TX/RX): 4/2 Add_link_ack(TX/RX): 2/1

Add_link_rej(TX/RX): 0/0

Remove_link(TX/RX): 0/0 Remove_link_ack(TX/RX): 0/0

Pkts dropped(in/out): 0/0

Timer: ACK 4, Hello 10

Retry: Max 2, Current 0

Cause code: none

Bundle Link fragment statistics:

Mfr fragment(in/out): 0/0

Table 1-10 display mfr verbose command output description

Field	Description
LID	Identifier of the bundle link (to be the name of corresponding physical interface by default)
Peer LID	Identifier of the peer bundle link (to be the name of corresponding physical interface by default).
Bound to MFR0 (BID:MFR0)	The bundle link is bound to MFR0 on the interface MFR
Physical state	Operating state of the physical interface.
link state	Operating state of the link protocol on the bundle link.
Bundle Link statistics:	Statistics about the packets on the bundle link.
Hello(TX/RX)	Number of the transmitted and received Hello messages. Hello messages are sent for maintaining link state.
Hello_ack(TX/RX)	Number of transmitted and received Hello acknowledgement messages. Hello_ack messages are sent notifying receipt of the Hello messages.
Add_link(TX/RX)	Number of transmitted and received Add_link messages. Add_link messages are sent notifying the peer that the local node is ready for processing frames.
Add_link_ack(TX/RX)	Number of transmitted and received Add_link acknowledgment messages. Add_link_ack messages are sent notifying receipt of the Add_link messages.
Add_link_rej(TX/RX)	Number of transmitted and received Add_link reject messages. Add_link_rej messages are sent notifying reject of the Add_link messages.
Remove_link(TX/RX)	Number of transmitted and received Remove_link messages. Remove_link messages are sent notifying removal of a link from the bundle.
Remove_link_ack(TX/RX)	Number of transmitted and received Remove_link_ack messages. Remove_link_ack messages are sent notifying receipt of the Remove_link messages.
Pkts dropped(in/out)	Number of dropped incoming and outgoing packets.
Timer: Ack 4	Time waiting for a Hello_ack message before a Hello message or an Add_link message (for initial synchronization) is retransmitted on the bundle link.
Hello 10	Intervals for sending Hello messages.
Retry: max 2	Maximum number of Hello or Add_link sending retries made when no Hello_ack or Add_link_ack is received on the bundle link.
Current 0	Number of retries
Cause code	Cause resulting in the current state of the bundle link.
Bundle Link fragment statistics	Fragment statistics on the bundle link

fr dlci

Syntax

fr dlci dlci-number

undo fr dlci [ dlci-number ]

View

Interface view

Default Level

2: System level

Parameters

dlci-number: Virtual circuit number allocated for the frame relay interface, in the range 16 to 1007. The virtual circuit number range 0 to 15 and 1008 to 1023 are reserved for special purposes.

Description

Use the fr dlci command to configure the virtual circuit for frame relay interface and enter the corresponding virtual circuit view on the frame relay..

Use the undo fr dlci command to cancel the configuration.

Note that:

l When the frame relay interface type is DCE or NNI, it is necessary to manually configure virtual circuit for interface (either main interface or subinterface).

l When the frame relay interface type is DTE, if the interface is main interface, the system will automatically configure the virtual circuit according to the peer device.

l The virtual circuit number on the physical interface is unique.

Examples

# Assign a virtual circuit with DLCI 100 to frame relay interface Serial 2/0.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] fr dlci 100

[Sysname-fr-dlci-Serial2/0-100]

fr inarp

Syntax

fr inarp [ ip [ dlci-number ] ]

undo fr inarp [ ip [ dlci-number ] ]

View

Interface view

Default Level

2: System level

Parameters

ip: Performs inverse address resolution for IP addresses.

dlci-number: Data link connection identifier number, that is, virtual circuit number, indicating that the inverse address resolution is performed for this DLCI number only, ranges from 16 to 1007.

Description

Use the fr inarp command to enable the inverse address resolution of frame relay.

Use the undo fr inarp command to disable this function.

By default, frame relay inverse address resolution is enabled.

When the frame relay sends data over the interface, it is necessary to map the IP address of the peer to the local DLCI. Such a map can be specified manually or completed via the function of automatic inverse address resolution. Automatic inverse address resolution can be started by using the command.

Note that:

l To enable inverse address resolution of all PVCs, use this command without any parameters.

l To disable inverse address resolution of all PVCs, use the undo form of this command without any parameters.

l To enable inverse address resolution on a specified virtual circuit, use this command the dlci-number argument specified.

l After you enable inverse address resolution on an interface (including the subinterfaces), inverse address resolution will be enabled on all the PVCs under this interface. In this case, you can use undo fr inarp ip dlci-number command to disable inverse address resolution on a virtual circuit; if you use the undo fr inarp command to disable inverse address resolution on an interface, you will disable this function for all the virtual circuits on the interface. In this case, you can use the fr inarp ip dlci-number command to enable inverse address resolution on individual virtual circuits.

l The fr inarp command configured on an FR main interface also applies to its subinterfaces.

Examples

# Enable InARP at all PVCs of the frame relay interface Serial 2/0.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] fr inarp

fr interface-type

Syntax

fr interface-type { dce | dte | nni }

undo fr interface-type

View

Interface view

Default Level

2: System level

Parameters

dce: Set the type of frame relay interface to DCE (Data Circuit-terminating Equipment).

dte: Set the type of frame relay interface to DTE (Data Terminal Equipment).

nni: Set the type of frame relay interface to NNI (Network-to-Network Interface).

Description

Use the fr interface-type command to set the frame relay interface type.

Use the undo fr interface-type command to restore the default frame relay interface type.

By default, the frame relay interface type is DTE.

In frame relay, there are two communicating parties, namely, the user side and network side. The user side is called Data Terminal Equipment (DTE), and the network side is called Data Communications Equipment (DCE). In a frame relay network, the interface between the frame relay switches is Network-to-Network Interface (NNI), and the corresponding interface adopts the NNI operating view. If the device is used as frame relay switching, the frame relay interface should operate in the NNI view or DCE mode. The system supports these three modes.

Examples

# Set the type of the frame relay interface Serial 2/0 to DCE.

<Sysname> system-view

[Sysname] interface serial2/0

[Sysname-Serial2/0] fr interface-type dce

fr lmi n391dte

Syntax

fr lmi n391dte n391-value

undo fr lmi n391dte

View

Interface view

Default Level

2: System level

Parameters

n391-value: The value of counter N391, ranges from 1 to 255.

Description

Use the fr lmi n391dte command to configure N391 parameter at the DTE side.

Use the undo fr lmi n391dte command to restore the default.

By default, its value is 6.

The DTE sends a Status-Enquiry packet at regular interval set by T391 to the DCE. There are two types of Status-Enquiry messages: link integrity verification messages and link status enquiry messages. N391 defines that the ratio of sent link status enquiry messages to sent link integrity verification messages is N391–1:1.

Examples

# Set DTE as the operating mode of frame relay interface Serial 2/0, and the counter value of the PVC status to 10.

<Sysname> system-view

[Sysname] interface serial2/0

[Sysname-Serial2/0] link-protocol fr

[Sysname-Serial2/0] fr interface-type dte

[Sysname-Serial2/0] fr lmi n391dte 10

fr lmi n392dce

Syntax

fr lmi n392dce n392-value

undo fr lmi n392dce

View

Interface view

Default Level

2: System level

Parameters

n392-value: The Error threshold, which ranges from 1 to 10.

Description

Use the fr lmi n392dce command to set N392 parameter at the DCE side.

Use the undo fr lmi n392dce command to restore the default.

By default, the parameter value is 3.

The DCE requires the DTE to send a Status-Enquiry packet at regular interval (set by T392). If the DCE does not receive the Status-Enquiry packet within a period of time, the error counter on DCE increments by one. If the errors exceed the threshold, the DCE would consider the physical channels and all the DLCIs to be unavailable.

N392 and N393 together define the “error threshold”. N393 defines the event number observed and N392 defines the error threshold of that number (N393). That is, if number of errors that occurred to the DCE reaches N392 in N393 events, DCE will consider the errors have reached the threshold and declare the physical channels and all DLCIs to be unavailable.

Note that, N392 at the DCE side should be less than N393 at the DCE side.

Examples

# Set frame relay interface Serial 2/0 to operate in DCE mode and set N392 to 5 and N393 to 6.

<Sysname> system-view

[Sysname] interface serial2/0

[Sysname-Serial2/0] link-protocol fr

[Sysname-Serial2/0] fr interface-type dce

[Sysname-Serial2/0] fr lmi n392dce 5

[Sysname-Serial2/0] fr lmi n393dce 6

fr lmi n392dte

Syntax

fr lmi n392dte n392-value

undo fr lmi n392dte

View

Interface view

Default Level

2: System level

Parameters

n392-value: The value of N392 parameter at the DTE side. It ranges from 1 to 10.

Description

Use the fr lmi n392dte command to set N392 parameter at the DTE side.

Use the undo fr lmi n392dte command to restore the default.

By default, the parameter is 3.

The DTE sends a Status-Enquiry packet at a regular interval to the DCE to inquire the link status. On receiving this packet, the DCE will immediately send a Status-Response packet. If the DTE does not receive the response packet in the specified time, it will record the error by adding 1 to the error count. If the errors exceed the threshold, the DTE will consider that the physical channels and all the DLCIs to be unavailable.

N392 and N393 together define the “error threshold”. N393 indicates the event number observed and N392 indicates the error threshold of that number (N393). That is, if N392 errors occurred in N393 Status-Enquiry packets in the DTE, the DTE would consider that the error had exceeded the threshold and declare the physical channels and all DLCIs to be unavailable.

Note that, N392 at DTE side should be less than N393 at DTE side.

Examples

# Set the operation of frame relay interface Serial 2/0 as the DTE mode and set N392 to 5 and N393 to 6.

<Sysname> system-view

[Sysname] interface serial2/0

[Sysname-Serial2/0] link-protocol fr

[Sysname-Serial2/0] fr interface-type dce

[Sysname-Serial2/0] fr lmi n392dce 5

[Sysname-Serial2/0] fr lmi n393dce 6

fr lmi n393dce

Syntax

fr lmi n393dce n393-value

undo fr lmi n393dce

View

Interface view

Default Level

2: System level

Parameters

n393-value: The value of N392 parameter at the DTE side. It ranges from 1 to 10.

Description

Use the fr lmi n393dce command to set the N393 parameter at the DCE side.

Use the undo fr lmi n393dce command to restore the default.

By default, the parameter value is 4.

The DCE requires the DTE to send a Status-Enquiry packet at a regular interval (set by T392). If the DCE does not receive the Status-Enquiry packet, it will record the error by adding 1 to the error count. If the errors exceed the threshold, the DCE would consider the physical channels and all the DLCIs to be unavailable.

N392 and N393 together define the “error threshold”. N393 defines the event number observed and N392 defines the error threshold of that number (N393). That is, if the number of errors that occurred to the DCE reach N392 in N393 events, DCE will consider the errors have reached the threshold and declare the physical channels and all DLCIs to be unavailable.

Note that, N392 at DCE side should be less than N393 at DCE side.

Examples

# Set the operation of frame relay interface Serial 2/0 as DCE mode and set N392 to 5 and N393 to 6.

<Sysname> system-view

[Sysname] interface serial2/0

[Sysname-Serial2/0] link-protocol fr

[Sysname-Serial2/0] fr interface-type dce

[Sysname-Serial2/0] fr lmi n392dce 5

[Sysname-Serial2/0] fr lmi n393dce 6

fr lmi n393dte

Syntax

fr lmi n393dte n393-value

undo fr lmi n393dte

View

Interface view

Default Level

2: System level

Parameters

n393-value: The value of N393 parameter at the DTE side. It ranges from 1 to 10.

Description

Use the fr lmi n393dte command to set N393 parameter at the DTE side.

Use the undo fr lmi n393dte command to restore the default.

By default, the parameter value is 4.

N392 and N393 together define the “error threshold”. N393 indicates the event number observed and N392 indicates the error threshold of that number (N393). That is, if N392 errors occurred in N393 Status-Enquiry packets in the DTE, the DTE would consider that the error count had exceeded the threshold and declare the physical channels and all DLCIs to be unavailable.

Note that, N392 at DTE side should be less than N393 at DTE side.

Examples

# Set the operation of frame relay interface Serial 2/0 as the DTE mode and set N392 to 5 and N393 to 6.

<Sysname> system-view

[Sysname] interface serial2/0

[Sysname-Serial2/0] link-protocol fr

[Sysname-Serial2/0] fr interface-type dte

[Sysname-Serial2/0] fr lmi n392dte 5

[Sysname-Serial2/0] fr lmi n393dte 6

fr lmi t392dce

Syntax

fr lmi t392dce t392-value

undo fr lmi t392dce

View

Interface view

Default Level

2: System level

Parameters

t392-value: Value of T392 at the DCE side. The range of the value is 5 to 30, in seconds.

Description

Use the fr lmi t392dce command to set T392 parameter at the DCE side.

Use the undo fr lmi t392dce command to restore the default.

By default, the parameter value is 15 seconds.

This parameter defines the maximum time for DCE waiting for a Status-Enquiry.

Note that, T392 at DCE side should be greater than T391 at DTE side Use the timer hold command to configure the parameter value.

Examples

# Set the frame relay interface Serial 2/0 to operate in DCE mode and set T392 to 10 seconds.

<Sysname> system-view

[Sysname] interface serial2/0

[Sysname-Serial2/0] link-protocol fr

[Sysname-Serial2/0] fr interface-type dce

[Sysname-Serial2/0] fr lmi t392dce 10

fr lmi type

Syntax

fr lmi type { ansi | nonstandard | q933a }

undo fr lmi type

View

Interface view

Default Level

2: System level

Parameters

ansi: Standard LMI protocol type of ANSI T1.617 Appendix D.

nonstandard: Nonstandard compatible LMI protocol type.

q933a: Standard LMI protocol type of Q.933 Appendix A.

bi-direction: Specifies to respond to status-enquiry messages from network side in frame relay DTE mode. The support of this keyword varies with device models.

Description

Use the fr lmi type command to configure the frame relay LMI protocol type.

Use the undo fr lmi type command to restore the default.

By default, the LMI protocol type is q933a.

LMI protocol is used to maintain frame relay protocol PVC table, including notifying PVC increasing, detecting PVC deleting, monitoring PVC status changing and authenticating link integrity. The system usually supports three standard LMI protocols ITU-T Q.933 Appendix A, ANSI T1.617 Appendix D, and nonstandard-compatible LMI protocol.

The bi-direction keyword specifies the interface to respond to status enquiry messages form network side when operating in frame relay DTE mode. It does not enable frame relay network specifications of the network side and has no effect on frame relay DCE interfaces. Normally, this keyword is only needed when the current device is to communicate with routers that require bi-directional LMI, such as Motorola Vanguard 5.3 (or former versions).

Examples

# Set the frame relay LMI type of Serial 2/0 to nonstandard compatible protocol.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] fr lmi type nonstandard

fr map ip

Syntax

fr map ip { ip-address [ mask ] | default } dlci-number [ broadcast | [ ietf | nonstandard ] ] *

undo fr map ip { ip-address | default } dlci-number

View

Interface view

Default Level

2: System level

Parameters

ip-address: Peer IP address.

ip-mask: Peer IP mask.

default: Creates a default map.

dlci-number: Local virtual circuit number, in the range 16 to 1007.

broadcast: Specifies if broadcast packets can be sent using the map.

ietf: The map adopts IETF encapsulation format.

nonstandard: The map adopts nonstandard compatible encapsulation format.

Description

Use the fr map ip command to add an IP address map entry for frame relay.

Use the undo fr map ip command to remove an IP address map entry for frame relay.

By default, no static address map entry exists and InARP is enabled.

You can create an address map manually or by using InARP. InARP is suitable for a complex network where the remote router also supports InARP. When the number of remote hosts is small or when default routes exist, however, manual map creation is preferred.

Examples

# Create a static address map entry on interface Serial 2/0, where DLCI 50 is connected to the router with IP address 202.38.163.252.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] fr map ip 202.38.163.252 50

fr switch

Syntax

fr switch name [ interface interface-type interface-number dlci dlci1 interface interface-type interface-number dlci dlci2 ]

undo fr switch name

View

System view

Default Level

2: System level

Parameters

name: Name of a PVC used for frame relay switching, a string of 1 to 30 characters.

interface interface-type interface-number dlci dlci1: DLCI number at one end of PVC as well as the type and number of its interface.

interface interface-type interface-number dlci dlci2: DLCI number at the peer end of PVC as well as the type and number of its interface.

Description

Use the fr switch name interface interface-type interface-number dlci dlci1 interface interface-type interface-number dlci dlci2 command to create a PVC used for frame relay switching.

Use the fr switch name command to enter the established frame relay switching view.

Use the undo fr switch command to delete a specified PVC.

By default, there is no PVC used for frame relay switching.

The interface for forwarding packets can be either a frame relay interface or an MFR interface. If Tunnel interface is specified as the forwarding interface, frame relay packets over IP can thus be realized.

In frame relay switching view, the shutdown/undo shutdown operation can be executed on a PVC. Before you can enter frame relay switching view, the PVC must have existed.

Examples

# Create a PVC named pvc1 on the DCE serving as the switch, which is from the DLCI 100 of serial interface 2/0 to the DLCI 200 of serial interface 2/1.

<Sysname> system-view

[Sysname] fr switching

[Sysname] fr switch pvc1 interface serial 2/0 dlci 100 interface serial 2/1 dlci 200

[Sysname-fr-switching-pvc1]

fr switching

Syntax

fr switching

undo fr switching

View

System view

Default Level

2: System level

Parameters

None

Description

Use the fr switching command to enable frame relay PVC switching.

Use the undo fr switching command to disable frame relay PVC switching.

By default, frame relay switching is disabled.

Examples

# Enable PVC switching.

<Sysname> system-view

[Sysname] fr switching

interface mfr

Syntax

interface mfr { interface-number | interface-number.subnumber }

undo interface mfr { interface-number | interface-number.subnumber }

View

System view

Default Level

2: System level

Parameters

interface-number: MFR interface number.

interface-number.subnumber: MFR subinterface number, of which, interface-number is the main interface number, and subnumber is subinterface number.

Description

Use the interface mfr command to create a multilink frame relay bundle interface or subinterface and enter the corresponding interface view.

Use the undo interface mfr command to delete a specified multilink frame relay bundle interface or subinterface.

By default, there is no multilink frame relay interface or subinterface.

Note that:

l Before an MFR subinterface is created, the MFR interface must be created first.

l Before using the undo interface mfr command to delete an MFR interface, you must delete all physical interfaces from the MFR interface.

l For MFR interface, if there is one bundle link is in up state, the MFR physical state is up. Moreover, all bundle links should be tagged as down before the bundle is down. The link layer protocol on MFR interface is determined by LMI packet negotiation.

Examples

# Create a multilink frame relay bundle interface MFR4 with a point-to-multipoint subinterface.

<Sysname> system-view

[Sysname] interface mfr 4

[Sysname-MFR4] quit

[Sysname] interface mfr 4.1

[Sysname-MFR4.1]

interface serial

Syntax

interface serial interface-number.subnumber [ p2mp | p2p ]

undo interface serial interface-number.subnumber

View

System view

Default Level

2: System level

Parameters

interface-number: Main interface number.

subnumber: Subinterface number, in the range 0 to 1023..

p2p: Point-to-point subinterface.

p2mp: Point-to-multipoint subinterface.

Description

Use the interface serial command to create subinterface and enter subinterface view.

Use the undo interface serial command to delete subinterface.

Frame relay subinterface type defaults to p2mp.

Examples

# Configure a point-to-point subinterface Serial 2/0.2.

<Sysname> system-view

[Sysname] interface serial2/0.2 p2p

[Sysname-Serial2/0.2]

link-protocol fr

Syntax

link-protocol fr [ ietf | nonstandard ]

View

Interface view

Default Level

2: System level

Parameters

ietf: Default encapsulation format according to the Internet Engineering Task Force (IETF) standard.

nonstandard: Nonstandard compatible encapsulation format.

Description

Use the link-protocol fr command to encapsulate interface link layer protocol as frame relay.

By default, the link-layer protocol encapsulated on the interface is PPP, and the frame relay encapsulation format is IETF.

The frame relay encapsulation can be either ietf or nonstandard. IETF encapsulation conforms to RFC 1490, that is, it supports the IETF standard and is compatible with dedicated encapsulation format of mainstream routers.

If you encapsulate a frame relay interface using any of the above frame relay formats, the packets are encapsulated in the corresponding frame relay format before they are forwarded through the interface. That is, two devices can communicate with each other if the interfaces of both sides can recognize packets in both of the formats even if they are encapsulated using different frame relay formats. If an interface on one side cannot recognize packets of both formats, you need to encapsulate the two interfaces using the same frame relay format.

Examples

# Configure frame relay encapsulation on interface Serial 2/0 and select the nonstandard encapsulation compatible format.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] link-protocol fr nonstandard

link-protocol fr mfr

Syntax

link-protocol fr mfr interface-number

View

Interface view

Default Level

2: System level

Parameters

interface-number: MFR interface number.

Description

Use the link-protocol fr mfr command to configure the current physical interface as an MFR bundle link and bind it to an MFR interface.

By default, an interface is not bound to any MFR interface.

Note that:

l When this command is configured, the specified MFR interface must exist. A maximum of 16 physical interfaces can be bundled onto an MFR interface.

l To delete a physical interface from an MFR interface, use the link-protocol command to apply a link layer protocol of non frame relay MFR to the interface.

l After a physical interface is encapsulated as MFR format, the interface belongs to MFR and is not allowed to be configured using the commands related to FR except MFR. In addition, the queue type on the interface can be configured as FIFO (first in first out) only even if the other queue types have been encapsulated on the interface, they would be converted to FIFO type by force.

Examples

# Configure Serial 2/0 as a bundle link and add it onto the Frame Relay bundle interface MFR4.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] link-protocol fr mfr 4

mfr bundle-name

Syntax

mfr bundle-name [ name ]

undo mfr bundle-name

View

MFR interface view

Default Level

2: System level

Parameters

name: Bundle identification, a string of 1 to 49 characters.

Description

Use the mfr bundle-name command to set frame relay bundle identifier (BID).

Use the undo mfr bundle-name command to restore the default.

By default, the BID of an MFR bundle is represented by mfr plus frame relay bundle number, for example, mfr4.

Each MFR bundle has a BID, which is only of local significance. Therefore, the same BID can be used at both ends of a link.

Note that:

l In spite of the default BID, you cannot configure a BID as a string in the form of mfr + number.

l When changing the BID of an MFR interface, you must execute the shutdown and undo shutdown command on the interface to validate the new BID.

Examples

# Set the frame relay link MFR4 BID to bundle1.

<Sysname> system-view

[Sysname] interface mfr 4

[Sysname-MFR4] mfr bundle-name bundle1

mfr fragment

Syntax

mfr fragment

undo mfr fragment

View

MFR interface view

Default Level

2: System level

Parameters

None

Description

Use the mfr fragment command to enable fragmentation on the MFR bundle.

Use the undo mfr fragment command to disable the function.

By default, fragmentation is disabled on the MFR bundle.

Examples

# Enable fragmentation on interface MFR 4.

<Sysname> system-view

[Sysname] interface mfr 4

[Sysname-MFR4] mfr fragment

mfr fragment-size

Syntax

mfr fragment-size bytes

undo mfr fragment-size

View

Frame relay interface view, MFR interface view

Default Level

2: System level

Parameters

bytes: Fragment size, ranging from 60 to 1,500 in bytes.

Description

Use the mfr fragment-size command to configure the maximum fragment size allowed on a frame relay bundle link.

Use the undo mfr fragment-size command to restore the default.

By default, the maximum fragment size allowed on a frame relay bundle link is of 300 bytes.

The bundle link executes the priority of the fragment size configured on the frame relay interface view after the fragmentation is enabled on MFR interface. If the frame relay interface view is not configured with fragment size, use the fragment size configured on MFR interface view. The priority of the fragment size configured in frame relay interface view is higher than that of the one configured in MFR interface view.

Examples

# Configure the maximum fragment size allowed on the multilink frame relay bundle link Serial 2/0 to be 70 bytes.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] mfr fragment-size 70

mfr link-name

Syntax

mfr link-name [ name ]

undo mfr link-name [ name ]

View

Frame relay interface view

Default Level

2: System level

Parameters

name: Name of a bundle link identification, a string of 1 to 49 characters.

Description

Use the mfr link-name command to set the frame relay bundle link identification (LID).

Use the undo mfr link-name command to restore the default.

By default, LID is the name of the corresponding physical interface.

Note that:

l Use the link-protocol fr mfr command to configure the current physical interface as a multilink frame relay bundle link before using the mfr link-name command to configure.

l The peer equipment identifies a frame relay bundle link via LID or associates the bundle link with a frame relay bundle by using LID. LID is locally valid; therefore, the LIDs at both ends of a link can be the same.

l When changing the bundle LID on an interface, you must execute the shutdown/undo shutdown command on the interface to make the new bundle LID valid.

Examples

# Set the bundle LID of the multilink frame relay bundle link Serial 2/0 to be bl1.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] mfr link-name bl1

mfr retry

Syntax

mfr retry number

undo mfr retry

View

Frame relay interface view

Default Level

2: System level

Parameters

number: The maximum times that a bundle link can resend hello messages, in the range 1 to 5.

Description

Use the mfr retry command to set the maximum times that a frame relay bundle link can resend hello message when waiting for a hello acknowledgement message.

Use the undo mfr retry command to restore the default.

By default, the maximum times that a frame relay bundle link can resend hello message is twice.

The bundle link sustains link status by periodically sending hello message to the peer end. If the times that a bundle link resends hello message reach the maximum without receiving acknowledgement from the peer, the system will regard the link protocol on the bundle link to be malfunctioning.

Note that, only after the link-protocol fr mfr command is used to associate a frame relay bundle link interface with a frame relay bundle, can this command be configured.

Examples

# Set the bundle link Serial 2/0 to resend hello message for 3 times at most.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] mfr retry 3

mfr timer ack

Syntax

mfr timer ack seconds

undo mfr timer ack

View

Frame relay interface view

Default Level

2: System level

Parameters

seconds: Time (in seconds) of waiting for hello acknowledgment message before resending hello message, in the range 1 to 10.

Description

Use the mfr timer ack command to set the time of waiting for hello acknowledgment message before frame relay bundle link resends hello message.

Use the undo mfr timer ack command to restore the default.

By default, time of waiting for hello acknowledgment message before resending hello message is 4 seconds.

Note that, only after the link-protocol fr mfr command is used to associate a frame relay bundle link interface with a frame relay bundle, can this command be configured.

Related commands: mfr timer hello, mfr retry.

Examples

# Set the frame relay bundle link Serial 2/0 to wait for six seconds before resending hello message.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] mfr timer ack 6

mfr timer hello

Syntax

mfr timer hello seconds

undo mfr timer hello

View

Frame relay interface view

Default Level

2: System level

Parameters

seconds: Interval (in seconds) for a bundle link to send hello message, in the range 1 to 180.

Description

Use the mfr timer hello command to set the interval for a frame relay bundle link to send hello message.

Use the undo mfr timer hello command to restore the default.

By default, the interval for a frame relay bundle link to send hello message is 10 seconds.

Note that, only after the link-protocol fr mfr command is used to associate a frame relay bundle link interface with a frame relay bundle, can this command be configured.

Examples

# Set the bundle link Serial 2/0 to send hello message once every 15 seconds.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] mfr timer hello 15

mfr window-size

Syntax

mfr window-size number

undo mfr window-size

View

MFR interface view

Default Level

2: System level

Parameters

number: Number of fragments, in the range 1 to 16.

Description

Use the mfr window-size command to configure the number of fragments that can be hold by the window used in sliding window algorithm when multilink frame relay reassembles received fragments.

Use the undo mfr window-size command to restore the default.

By default, the size of a sliding window is equal to the number of physical interfaces of an MFR bundle.

Examples

# Set the size of the sliding window of the MFR bundle interface MFR4 to be 8.

<Sysname> system-view

[Sysname] interface mfr 4

[Sysname-MFR4] mfr window-size 8

shutdown

Syntax

shutdown

undo shutdown

View

Frame relay switching view

Default Level

2: System level

Parameters

None

Description

Use the shutdown command to disable the current switching PVC.

Use the undo shutdown command to enable the current switching PVC.

By default, the switching PVC is enabled.

Examples

# Create a PVC named pvc1 on the DCE serving as the switch, which is from the DLCI 100 of Serial 2/0 to the DLCI 200 of Serial 2/1 and disable the current switching PVC.

<Sysname> system-view

[Sysname] fr switching

[Sysname] fr switch pvc1 interface serial 2/0 dlci 100 interface serial 2/1 dlci 200

[Sysname-fr-switching-pvc1] shutdown

reset counters interface

Syntax

reset counters interface [ mfr [ interface-number | interface-number.subnumber ] ]

View

User view

Default Level

2: System level

Parameters

interface-number: MFR interface number, in the range of 0 to 1023.

interface-number.subnumber: MFR subinterface number. The interface-number argument is the main interface number, and the subnumber argument is the subinterface number, ranging from 0 to 1023.

Description

Use the reset counters interface command to clear statistics of the specified or all MFR interfaces.

To collect statistics spanning a specific period for an interface, you need to clear statistics of the interface before starting statistics collection.

l If you specify neither mfr nor an interface number, this command clears the statistics of all interfaces.

l If you specify mfr but not an interface number, this command clears the statistics of all MFR interfaces.

l If you specify both mfr and an interface number, this command clears the statistics of the specified MFR interface.

Examples

# Clear statistics of interface MFR 4.

<Sysname> reset counters interface mfr 4

reset fr inarp

Syntax

reset fr inarp

View

User view

Default Level

2: System level

Parameters

None

Description

Use the reset fr inarp command to clear the address mapping established by inverse ARP.

In some special cases, for example, when the network architecture changes, the dynamic address maps originally established will become invalid. Hence it is necessary to establish them again. Users can use this command to clear all the dynamic address maps.

Related commands: fr inarp.

Examples

# Clear all the frame relay dynamic address maps.

<Sysname> reset fr inarp

sub-interface rate-statistic

Syntax

sub-interface rate-statistic

undo sub-interface rate-statistic

View

MFR interface view

Default Level

2: System level

Parameters

None

Description

Use the sub-interface rate-statistic command to enable rate statistics collecting on the MFR interface.

Use the undo sub-interface rate-statistic command to restore the default.

By default, the rate statistics collecting function is disabled on an MFR interface.

l This function may consume massive system resources. Therefore, use this function cautiously.

l This function is applicable to all interfaces supporting subinterfaces.

Examples

# Enable the rate statistics collecting function on MFR interface MFR 4.

<Sysname> system-view

[Sysname] interface mfr 4

[Sysname-MFR4] sub-interface rate-statistic

Warning: This configuration may make a negative effect on the performance. Are you sure to continue? [Y/N]: Y

[Sysname-MFR4]

timer hold

Syntax

timer hold seconds

undo timer hold

View

Interface view

Default Level

2: System level

Parameters

seconds: Value of T391 parameter at DTE side, which ranges from 0 to 32767 in seconds. 0 indicates that the LMI protocol is disabled.

Description

Use the timer hold command to configure T391 parameter at the DTE side.

Use the undo timer hold command to restore the default.

By default, the parameter is 10 seconds.

The parameter is a time variable that defines the interval of Status-Enquiry packet sent by DTE.

Related commands: fr lmi t392dce.

Examples

# Configure that frame relay interface Serial 2/0 to operate in DTE mode, and set the value of T391 parameter to 15 seconds.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] link-protocol fr

[Sysname-Serial2/0] fr interface-type dte

[Sysname-Serial2/0] timer hold 15

01-Access Volume

display fr dlci-switch

display fr map-info

display fr pvc-info

fr dlci

fr inarp

fr interface-type

fr lmi n391dte

fr lmi t392dce

fr map ip

fr switch

fr switching

mfr retry

mfr timer hello

timer hold

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