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| Title | Size | Download |
|---|---|---|
| 04-ATM commands | 143.05 KB |
Contents
ATM commands
Only MIC and HIM ATM interface modules support ATM.
bandwidth
Use bandwidth to configure the expected bandwidth for an interface.
Use undo bandwidth to restore the default.
Syntax
bandwidth bandwidth-value
undo bandwidth
Default
The expected bandwidth (in kbps) is the interface baud rate divided by 1000.
Views
VEth interface view
Predefined user roles
network-admin
mdc-admin
Parameters
bandwidth-value: Specifies the expected bandwidth in the range of 1 to 400000000 kbps.
Usage guidelines
The expected bandwidth of an interface affects the link costs of IS-IS, OSPF, and OSPFv3. For more information, see Layer 3—IP Routing Configuration Guides.
Examples
# Set the expected bandwidth of Virtual-Ethernet 2/4/1 to 50 kbps.
<Sysname> system-view
[Sysname] interface virtual-ethernet 2/4/1
[Sysname-Virtual-Ethernet2/4/1] bandwidth 50
broadcast
Use broadcast to enable the broadcast attribute for a PVC or PVC group.
Use undo broadcast to disable the broadcast attribute for a PVC or PVC group.
Syntax
broadcast
undo broadcast
Default
The broadcast attribute is disabled.
Views
PVC view
Predefined user roles
network-admin
mdc-admin
Usage guidelines
On an ATM interface, multicast or broadcast packets are sent through all PVCs with the broadcast attribute enabled.
You must configure this command on a PVC where broadcast or multicast packets must be sent. For example, to establish PIM neighbors between two routers on an ATM link through exchanging IP multicast packets, you must enable the broadcast attribute for PVCs on the ATM interfaces of both ends on the link.
Examples
# Enable the broadcast attribute for PVC 0/100.
<Sysname> system-view
[Sysname] interface atm 2/1/1.1
[Sysname-ATM2/1/1.1] pvc 0/100
[Sysname-ATM2/1/1.1-pvc-0/100] broadcast
display atm map-info
Use display atm map-info to display mapping information about PVCs.
Syntax
display atm map-info [ interface interface-type { interface-number | interface-number.subnumber } [ pvc { pvc-name | vpi/vci } ] ]
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Parameters
interface interface-type { interface-number | interface-number.subnumber }: Specifies an interface by its type and number. Both ATM interfaces and ATM subinterfaces are supported.
pvc: Displays mapping information for a PVC.
pvc-name: Specifies a PVC by its name, a case-sensitive string of 1 to 15 characters excluding slashes (/) and hyphens (-). For example, neither 1/20 nor a-b is a valid PVC name.
vpi/vci: Specifies a PVC by its VPI and VCI values. The value range for the vpi argument is 0 to 255. The value range for the vci argument varies by interface type. For more information, see Table 5. The values of the vpi and vci arguments cannot be 0 at the same time. As a best practice, do not use VCI values 0 through 31 because they are reserved for special purposes.
Usage guidelines
If you do not specify an ATM interface, this command displays mapping information for all PVCs and PVC groups on all ATM interfaces.
If you specify an ATM interface but do not specify a PVC or PVC group, this command displays mapping information for all PVCs and PVC groups on the specified ATM interface.
If you specify an ATM interface and a PVC or PVC group, this command displays mapping information for the specified PVC or PVC group.
Examples
# Display mapping information for all PVCs on all ATM interfaces.
<Sysname> display atm map-info
ATM2/1/0
PVC 1/32:
Protocol: PPP, Interface: Virtual-Template10, State: UP
Protocol: IP, IP address: 100.11.1.1, State: UP
ATM2/1/1
PVC 2/32:
Protocol: IP InARP, IP address: no IP address, Interval: 3 minutes, State: UP
|
Field |
Description |
|
ATM2/1/0 |
Interface name. |
|
PVC 1/32 |
VPI/VCI pair of the PVC. |
|
Protocol |
Upper-layer protocol running on the PVC or PVC group: · PPP—PPP protocol. · IP—IP protocol. · IP InARP—IP InARP protocol. · ETH—Ethernet protocol. |
|
State |
Mapping state: · UP—In PPP and IP (including InARP) mappings, it means that the PVC or PVC group is up. In Ethernet mapping, it means that the PVC or PVC group and the VEth interface are up. · DOWN—In PPP and IP (including InARP) mappings, it means that the PVC or PVC group is down. In Ethernet mapping, it means that either the PVC (PVC group) or the VEth interface is down, or both the PVC (PVC group) and the VEth interface are down. |
|
Interval |
Interval (in minutes) at which InARP packets are sent. |
|
Interface |
VEth interface that carries PPPoA or EoA. |
display atm pvc-info
Use display atm pvc-info to display PVC information.
Syntax
display atm pvc-info [ interface interface-type { interface-number | interface-number.subnumber } [ pvc { pvc-name | vpi/vci } ] ]
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Parameters
interface interface-type { interface-number | interface-number.subnumber }: Specifies an interface by its type and number. Both ATM interfaces and ATM subinterfaces are supported.
pvc: Displays information about a PVC.
pvc-name: Specifies a PVC by its name, a case-sensitive string of 1 to 15 characters, excluding slashes (/) and hyphens (-). For example, neither 1/20 nor a-b is a valid PVC name.
vpi/vci: Specifies a PVC by its VPI and VCI values. The value range for the vpi argument is 0 to 255. The value range for the vci argument varies by interface type. For more information, see Table 5. The values of the vpi and vci arguments cannot be 0 at the same time. As a best practice, do not use VCI values 0 through 31 because they are reserved for special purposes.
Usage guidelines
If you do not specify an ATM interface, this command displays brief information about all PVCs on all ATM interfaces.
If you specify an ATM interface but do not specify a PVC, this command displays brief information about all PVCs on the specified ATM interface.
If you specify an ATM interface and a PVC, this command displays detailed information about the specified PVC.
Examples
# Display brief information about all PVCs on all ATM interfaces.
<Sysname> display atm pvc-info
VPI/VCI State PVC name Encap Protocol Interface
1/32 UP aa SNAP IP ATM2/1/0
1/33 UP Sysname MUX None ATM2/1/0
1/55 UP datacomm SNAP PPP ATM2/1/0.1
2/66 UP N/A SNAP IP ATM2/1/0.4
2/101 UP beijing SNAP ETH ATM2/1/0.2
Table 2 Command output
|
Description |
|
|
State |
PVC state: · UP—The following states are up: ¡ State of the ATM interface to which the PVC belongs. ¡ Shutdown state. ¡ OAM state. · DOWN—One or more of the following states is down: ¡ State of the ATM interface to which the PVC belongs. ¡ Shutdown state. ¡ OAM state. |
|
PVC name |
PVC name. N/A means no PVC name. |
|
Encap |
AAL5 encapsulation type of the PVC: · SNAP—LLC/SNAP encapsulation. · NLPID—RFC1490 encapsulation. · MUX—MUX multiplexing encapsulation. |
|
Protocol |
Upper-layer protocol running on the PVC: · PPP—PPP protocol. · IP—IP protocol. · ETH—Ethernet protocol. · None—No protocol is configured. |
|
Interface |
Name of the interface to which the PVC belongs. |
# Display detailed information about the specified PVC.
<Sysname> display atm pvc-info interface atm 2/1/1 pvc 1/100
ATM2/1/1, VPI: 1, VCI: 100
Encapsulation: SNAP, Protocol: IP
Service-type: UBR, Output-pcr: 200 kbps
Transmit-Priority: 0
OAM loopback interval: 0 sec(disabled), OAM loopback retry interval: 1 sec
OAM loopback retry count (up/down): 3/5
OAM AIS-RDI count (up/down): 3/1
Interface State: UP, OAM State: UP, PVC State: UP
Input: 0 packets, 0 bytes, 0 errors
Output: 0 packets, 0 bytes, 0 errors
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
OAM cells received: 42
F5 Loopback: 0, F5 AIS: 42, F5 RDI: 0
OAM cells sent: 0
F5 Loopback: 0
OAM cell drops: 0
OAM AIS State: No AIS Alarm
OAM RDI State: No RDI Alarm
OAM CC State: No CC Alarm
Table 3 Command output
|
Field |
Description |
|
ATM2/1/1 |
Name of the interface to which the PVC belongs. |
|
Encapsulation |
AAL5 encapsulation type of the PVC: · SNAP—LLC/SNAP encapsulation. · NLPID—RFC1490 encapsulation. · MUX—MUX multiplexing encapsulation. |
|
Protocol |
Upper-layer protocol running on the PVC: · PPP—PPP protocol. · IP—IP protocol. · ETH—Ethernet protocol. · None—No protocol is configured. |
|
Service-type |
Services type: CBR, UBR, VBR-NRT, or VBR-RT. |
|
Output-pcr |
Peak output rate of ATM cells. |
|
OAM loopback interval |
Interval at which OAM F5 Loopback cells are sent. |
|
OAM loopback retry interval |
Interval at which OAM F5 Loopback retransmission detection cells are sent. |
|
OAM loopback retry count (up/down) |
Number of cells that are detected as up and down in OAM detection. |
|
OAM AIS-RDI count (up/down) |
Number of seconds that are detected as up in OAM AIS-RDI detection. Number of cells that are detected as down in OAM AIS-RDI detection. |
|
Interface State |
Name of the interface to which the PVC belongs, and the physical and administrative states of the interface. State of an interface (not a subinterface): · UP—The interface is both physically and administratively up. · DOWN—The interface is in either of the following states: ¡ The interface is administratively up and physically down (probably because no physical link is available or the link has failed). ¡ The interface is administratively down (shut down by using the shutdown command). State of a subinterface: · UP—The interface is administratively up. The parent interface is both physically and administratively up. · DOWN—The interface or its parent interface was shut down by using the shutdown command, or the parent interface is physically down. |
|
OAM State |
OAM protocol state: UP or DOWN. |
|
PVC State |
PVC state: · UP—The following states are up: ¡ State of the ATM interface to which the PVC belongs. ¡ Shutdown state. ¡ OAM state. · DOWN—One or more of the following states is down: ¡ State of the ATM interface to which the PVC belongs. ¡ Shutdown state. ¡ OAM state. |
|
Input: 0 packets, 0 bytes, 0 errors |
Counts of received packets, bytes, and packet errors. |
|
Output: 0 packets, 0 bytes, 0 errors |
Counts of transmitted packets, bytes, and packet errors. |
|
Output queue |
QoS packet output queue information of the PVC. |
|
OAM cells received |
Counts of received OAM cells. |
|
F5 Loopback |
Counts of received F5 Loopback cells. |
|
F5 AIS |
Number of received AIS cells. If the AIS alarm state is not supported, this command displays only the number of AIS cells, rather than the AIS alarm state in the OAM AIS State field. |
|
F5 RDI |
Number of received RDI cells. If the RDI alarm state is not supported, this command displays only the number of RDI cells, rather than the RDI alarm state in the OAM RDI State field. |
|
OAM cells sent |
Number of transmitted OAM cells. |
|
F5 Loopback |
Number of transmitted F5 Loopback cells. |
|
OAM cell drops |
Number of dropped OAM cells. |
|
OAM AIS State |
AIS alarm state: · No AIS Alarm—No OAM AIS alarm. · E2E AIS Alarm—End-to-end OAM AIS alarm. If alarm state is supported, this command displays only the alarm state, rather than the number of cells in the F5 AIS field. |
|
OAM RDI State |
RDI alarm state: · No AIS Alarm—No OAM RDI alarm. · E2E AIS Alarm—End-to-end OAM RDI alarm. If alarm state is supported, this command displays only the alarm state, rather than the number of cells in the F5 RDI field. |
|
OAM CC State |
CC alarm state: · No CC Alarm—No OAM CC alarm. · E2E CC Alarm—End-to-end OAM CC alarm. |
map ip
Use map ip to create an IPoA mapping for a PVC.
Use undo map ip to delete the mapping.
Syntax
map ip { ip-address | default | inarp [ minutes ] }
undo map ip [ ip-address | default | inarp ]
Default
No IPoA mappings for a PVC or PVC group exist.
Views
PVC view
Predefined user roles
network-admin
mdc-admin
Parameters
ip-address: Specifies the remote IP address mapped to the PVC.
default: Sets the default PVC mapping. If no PVC mapping can be found for the next hop address of a packet, the packet is sent through the default PVC.
inarp: Enables InARP on the PVC.
minutes: Specifies the interval for sending InARP packets, in the range of 1 to 600 minutes. The default is 15 minutes.
Usage guidelines
All encapsulations support IPoA. Only aal5snap supports InARP. You cannot configure InARP when aal5mux or aal5nlpid is used.
Multiple IP addresses can be mapped to the same PVC. Supported mappings are static IP mapping, default mapping, and InARP mapping. You can configure them at the same time.
Different PVCs on the same interface cannot be mapped to the same IP address.
The PVCs on the same interface can be configured with only one default mapping.
If you do not specify any arguments or keywords, the undo map ip command deletes all static IP address mappings, default mappings, and InARP mappings on the PVC.
Examples
# Create a static IP address mapping on PVC 1/32, and set the IP address of the remote end to 61.123.30.169.
<Sysname> system-view
[Sysname] interface atm 2/1/0
[Sysname-ATM2/1/0] pvc 1/32
[Sysname-ATM2/1/0-pvc-1/32] map ip 61.123.30.169
# Enable InARP mapping on PVC 1/33, and set the InARP packet sending interval to 10 minutes.
<Sysname> system-view
[Sysname] interface atm 2/1/0
[Sysname-ATM2/1/0] pvc 1/33
[Sysname-ATM2/1/0-pvc-1/33] map ip inarp 10
# Delete all IP address mappings on PVC 1/33.
<Sysname> system-view
[Sysname] interface atm 2/1/0
[Sysname-ATM2/1/0] pvc 1/33
[Sysname-ATM2/1/0-pvc-1/33] undo map ip
oam cc
Use oam cc to enable OAM CC on the PVC.
Use undo oam cc to disable OAM CC on the PVC.
Syntax
oam cc { both | sink | source }
undo oam cc
Default
OAM CC is disabled.
Views
PVC view
Predefined user roles
network-admin
mdc-admin
Parameters
both: Enables the PVC as both the CC cell source and the CC cell sink (receiver).
sink: Enables the PVC as the CC cell sink to receive and process CC cells.
source: Enables the PVC as the CC cell source to generate CC cells.
Usage guidelines
When you configure OAM CC on a PVC, configure one end of the PVC as the CC cell source and the other end as the CC cell sink.
After you enable OAM CC on a PVC, if the detecting end fails to receive CC cells within 3 seconds, the state of the PVC changes to down. The PVC state changes to up only after CC cells are received again.
Examples
# Enable OAM CC on PVC 1/32 of ATM 2/1/0.
<Sysname> system-view
[Sysname] interface atm 2/1/0
[Sysname-ATM2/1/0] pvc 1/32
[Sysname-ATM2/1/0-pvc-1/32] oam cc sink
oam loopback
Use oam loopback to enable OAM F5 Loopback cell transmission and retransmission detection and modify related parameters.
Use undo oam loopback to disable OAM F5 Loopback cell transmission and retransmission detection.
Syntax
oam loopback interval [ up up-count down down-count retry retries ]
undo oam loopback
Default
OAM F5 Loopback cell transmission is disabled. Responses are sent if OAM F5 Loopback cells are received.
Views
PVC view
Predefined user roles
network-admin
mdc-admin
Parameters
interval: Specifies the interval for sending OAM F5 Loopback cells, in the range of 1 to 600 seconds.
up up-count: Specifies the number of successive OAM F5 Loopback cells received before the PVC comes up. The value range for the up-count argument is 1 to 600, and the default is 3.
down down-count: Specifies the number of successive OAM F5 Loopback cells not received before the PVC goes down. The value range for the down-count argument is 1 to 600, and the default is 5.
retry retries: Specifies the interval for sending retransmission detection cells before PVC state change. The value range for the retries argument is 1 to 1000 seconds, and the default is 1 second.
Usage guidelines
After you enable OAM F5 Loopback cell transmission and retransmission detection on a PVC, the PVC sends OAM F5 Loopback cells at the interval specified by the interval argument. If the PVC receives no responses after a time period specified by the retries argument, it immediately sends OAM F5 Loopback cells again.
The PVC state is updated during the OAM F5 Loopback cell transmission and retransmission detection process.
· If the PVC is down, it comes up when the number of successive OAM F5 Loopback cells received reaches the value specified by the up-count argument.
· If the PVC is up, it goes down when the number of successive OAM F5 Loopback cells not received reaches the value specified by the down-count argument.
Examples
# Enable OAM F5 Loopback detection on PVC 1/32 of ATM 2/1/0, and set the interval, up-count, down-count, and retries arguments to 12, 4, 4, and 1, respectively.
<Sysname> system-view
[Sysname] interface atm 2/1/0
[Sysname-ATM2/1/0] pvc 1/32
[Sysname-ATM2/1/0-pvc-1/32] oam loopback 12 up 4 down 4 retry 1
oam ping
Use oam ping to send OAM F5 end-to-end cells through the specified PVC on an ATM interface to check the link state.
Syntax
oam ping interface interface-type { interface-number | interface-number.subnumber } pvc { pvc-name | vpi/vci } [ number timeout ]
Views
Any view
Predefined user roles
network-admin
mdc-admin
Parameters
interface interface-type { interface-number | interface-number.subnumber }: Specifies an interface by its type and number. Both ATM interfaces and ATM subinterfaces are supported.
pvc: Sends OAM F5 end-to-end cells through the specified PVC.
pvc-name: Specifies a PVC by its name, a case-sensitive string of 1 to 15 characters, excluding slashes (/) and hyphens (-). For example, neither 1/20 nor a-b is a valid PVC name.
vpi/vci: Specifies a PVC by its VPI and VCI values. The value range for the vpi argument is 0 to 255. The value range for the vci argument varies by interface type. For more information, see Table 5. The values of the vpi and vci arguments cannot be 0 at the same time. As a best practice, do not use VCI values 0 through 31 because they are reserved for special purposes.
number: Specifies the number of OAM F5 end-to-end cells to be transmitted, in the range of 1 to 1000. The default is 5.
timeout: Specifies the OAM F5 end-to-end response timeout period in the range of 1 to 30 seconds. The default is 2 seconds.
Usage guidelines
Use this command to send OAM F5 end-to-end cells through the specified PVC on the specified ATM interface, and check the link state according to the response condition.
After you configure the oam ping command, the system sends an OAM F5 end-to-end cell. If the system receives a response within the time specified by the timeout argument, it immediately sends another OAM F5 end-to-end cell. If the system does not receive a response within the time specified by the timeout argument, the system sends an OAM F5 end-to-end cell again. In an oam ping process, the number of OAM F5 end-to-end cells transmitted is specified by the number argument. If no response is received, a link failure or link congestion might occur.
Examples
# Check the link state of PVC 1/32 on ATM 2/1/0 by sending three cells and setting the timeout period to 1 second.
<Sysname> oam ping interface atm 2/1/0 pvc 1/32 3 1
PING interface ATM2/1/0 pvc 1/32 with 3 of 53 bytes of oam F5 end-to-end cell(s),
timeout is 1 second(s), press CTRL_C to break
Receive reply from pvc 1/32: time=1 ms
Receive reply from pvc 1/32: time=1 ms
Receive reply from pvc 1/32: time=1 ms
oam ping statistics:
Cells: Sent = 3, Received = 3, Lost = 0 (0.00% loss)
# Check the link state of PVC 5/100 on ATM 2/1/0 by sending three cells and setting the timeout period to 1 second.
<Sysname> oam ping interface atm 2/1/0 pvc 5/100 3 1
PING interface ATM2/1/0 pvc 5/100 with 3 of 53 bytes of oam F5 end-to-end cell(s),
timeout is 1 second(s), press CTRL_C to break
Request time out!
Request time out!
Request time out!
oam ping statistics:
Cells: Sent = 3, Received = 0, Lost = 3 (100.00% loss)
Table 4 Command output
|
Field |
Description |
|
PING interface ATM2/1/0 pvc 1/32 |
Check if the link of PVC 1/32 on ATM 2/1/0 is available. |
|
53 bytes |
Number of bytes in each cell. |
|
timeout is 1 second(s) |
Response timeout period. |
|
Receive reply from pvc 1/32: time=1 ms |
A response is received within the specified time. |
|
Request time out |
No response is received within the specified timeout period. |
|
Sent = 3 |
Number of transmitted cells. |
|
Received = 0 |
Number of received responses. |
|
Lost = 3(100.00% loss) |
Cell loss rate (percentage of the number of unresponded cells to the total number of cells transmitted). |
pvc
In ATM interface view or ATM subinterface view:
Use pvc to create a PVC and enter its view, or enter the view of an existing PVC.
Use undo pvc to delete a PVC.
Syntax
pvc { pvc-name [ vpi/vci ] | vpi/vci }
undo pvc { pvc-name | vpi/vci }
Default
No PVCs exist.
Views
ATM interface view
ATM subinterface view
Predefined user roles
network-admin
mdc-admin
Parameters
pvc-name: Specifies a PVC by its name, a case-sensitive string of 1 to 15 characters, excluding slashes (/) and hyphens (-). For example, neither 1/20 nor a-b is a valid PVC name.
vpi/vci: Specifies a PVC by its VPI and VCI values. The value range for the vpi argument is 0 to 255. The value range for the vci argument varies by interface type. For more information, see Table 5. The values of the vpi and vci arguments cannot be 0 at the same time. As a best practice, do not use VCI values 0 through 31 because they are reserved for special purposes.
Table 5 VCI value ranges for different interface types
|
Interface type |
VCI value range |
|
ATM ADSL |
0 to 255 |
|
ATM ADSL2+ |
0 to 255 |
|
ATM G.SHDSL |
0 to 255 |
|
ATM SHDSL_4WIRE |
0 to 255 |
|
ATM SHDSL_4WIRE_BIS |
0 to 255 |
|
ATM SHDSL_8WIRE_BIS |
0 to 255 |
|
ATM E1 |
0 to 511 |
|
ATM T1 |
0 to 511 |
|
ATM E3 |
0 to 1023 |
|
ATM T3 |
0 to 1023 |
|
ATM OC-3c/STM-1 |
0 to 1023 |
|
ATM OC-12c/STM-4 |
0 to 1023 |
|
ATM 25M |
0 to 1023 |
|
ATM subinterface |
Same as that of the ATM interface to which the ATM subinterface belongs. |
|
PVC group |
Same as that of the ATM interface to which the PVC group belongs. |
Usage guidelines
When you create a PVC, you must specify the VPI/VCI value for it. The VPI/VCI value of a PVC is unique on an interface (including interface, PVC group, and subinterface).
If you have specified the PVC name when creating the PVC, you can enter the PVC view by using the pvc pvc-name [ vpi/vci ] command, and delete the PVC by using the undo pvc pvc-name [ vpi/vci ] or undo pvc vpi/vci command.
You can configure only one PVC on an ATM P2P subinterface.
Examples
# Create a PVC named aa on ATM 2/1/0, and set its VPI/VCI value to 1/101.
<Sysname> system-view
[Sysname] interface atm 2/1/0
[Sysname-ATM2/1/0] pvc aa 1/101
[Sysname-ATM2/1/0-pvc-aa-1/101]
Related commands
display atm pvc-info
pvc-group
remark atm-clp
Use remark atm-clp to re-mark the cell loss priority (CLP) flag value of ATM cells.
Use undo remark atm-clp to restore the default.
Syntax
remark [ green | red | yellow ] atm-clp atm-clp-value
undo remark [ green | red | yellow ] atm-clp
Default
The CLP flag value of ATM cells is not re-marked.
Views
Traffic behavior view
Predefined user roles
network-admin
mdc-admin
Parameters
green: Re-marks the CLP flag value of a green packet.
red: Re-marks the CLP flag value of a red packet.
yellow: Re-marks the CLP flag value of a yellow packet.
atm-clp-value: Sets the CLP flag value to 0 or 1. The cells with a CLP flag value of 1 are dropped first when network congestion occurs.
Usage guidelines
This command is not supported by ATM interfaces/subinterfaces on MIC ATM interface modules.
This command is applicable only to outbound PVCs.
Examples
# Set the CLP flag value of ATM cells to 1.
<Sysname> system-view
[Sysname] traffic behavior database
[Sysname-behavior-database] remark atm-clp 1
reset atm interface
Use reset atm interface to clear PVC statistics.
Syntax
reset atm interface [ interface-type { interface-number | interface-number.subnumber } ]
Views
User view
Predefined user roles
network-admin
mdc-admin
Parameters
interface-type { interface-number | interface-number.subnumber }: Clears statistics about all PVCs for the specified interface. Both ATM interfaces and ATM subinterfaces are supported. If you do not specify an interface, this command clears statistics about all PVCs for all interfaces.
Usage guidelines
This command clears statistics only about PVCs. To clear statistics about interfaces, use the reset counters interface command.
Examples
# Clear statistics about all PVCs for ATM 2/1/0.
<Sysname> reset atm interface atm 2/1/0
service cbr
Use service cbr to set the PVC service type to CBR and set the related parameters.
Use undo service to restore the default.
Syntax
service cbr output-pcr [ cdvt cdvt_value ]
undo service
Default
The service type of a PVC is UBR. The peak output rate of ATM cells equals the maximum bandwidth of the interface to which the PVC belongs.
Views
PVC view
PVC view in a PVC group
Predefined user roles
network-admin
mdc-admin
Parameters
output-pcr: Specifies the peak output rate of ATM cells in kbps. Table 6 shows the value ranges for the output-pcr argument on different interfaces.
Table 6 Peak output rate value ranges
|
Interface type |
Peak output rate value range |
|
ATM OC-3c/STM-1 |
64 to 155000 |
|
ATM OC-12c/STM-4 |
Not supported |
|
ATM subinterface |
Same as that of the ATM interface to which the ATM subinterface belongs. |
cdvt cdvt_value: Specifies the cell delay variation tolerance in the range of 0 to 10000 μs. The default is 500 μs, which means that the maximum cell delay is 500 μs.
Usage guidelines
When the peak output rate is exceeded, the system allocates caches based on the specified CDVT value to ensure service stability. A smaller CDVT value requires more hardware resources and is harder to configure. If the configuration fails, the following message appears: "Failed to set service parameter. Please adjust cdvt value." In this situation, configure a larger CDVT value.
You can use this command as well as the service ubr, service vbr-nrt, and service vbr-rt commands to set the service type and parameters of a PVC. If you execute this command multiple times, the most recent configuration takes effect.
Each PVC occupies a separate bandwidth. As a best practice, configure PVCs requiring more bandwidths first.
This command is not applicable to ATM E1 and ATM E3 interfaces.
Examples
# Create a PVC named aa on ATM 2/1/0, and set the VPI/VCI, service type, output-pcr, and cdvt_value to 1/101, CBR, 50000, and 1000, respectively.
<Sysname> system-view
[Sysname] interface atm 2/1/0
[Sysname-ATM2/1/0] pvc aa 1/101
[Sysname-ATM2/1/0-pvc-aa-1/101] service cbr 50000 cdvt 1000
Related commands
service ubr
service vbr-nrt
service vbr-rt
service ubr
Use service ubr to set the PVC service type to UBR and set the related parameters.
Use undo service to restore the default.
Syntax
service ubr output-pcr
undo service
Default
The service type of a PVC is UBR. The peak output rate of ATM cells equals the maximum bandwidth of the interface to which the PVC belongs.
Views
PVC view
PVC view in a PVC group
Predefined user roles
network-admin
mdc-admin
Parameters
output-pcr: Specifies the peak output rate of ATM cells in kbps. For more information about the value range, see Table 6.
Usage guidelines
You can use this command as well as the service cbr, service vbr-nrt, and service vbr-rt commands to set the service type and parameters of a PVC. If you execute this command multiple times, the most recent configuration takes effect.
Examples
# Create a PVC named aa on ATM 2/1/0, and set the VPI/VCI, service type, and output-pcr to 1/101, UBR, and 100000, respectively.
<Sysname> system-view
[Sysname] interface atm 2/1/0
[Sysname-ATM2/1/0] pvc aa 1/101
[Sysname-ATM2/1/0-pvc-aa-1/101] service ubr 100000
Related commands
service cbr
service vbr-nrt
service vbr-rt
service vbr-nrt
Use service vbr-nrt to set the PVC service type to VBR-NRT and set the related parameters.
Use undo service to restore the default.
Syntax
service vbr-nrt output-pcr output-scr output-mbs
undo service
Default
The service type of a PVC is UBR. The peak output rate of ATM cells equals the maximum bandwidth of the interface to which the PVC belongs.
Views
PVC view
PVC view in a PVC group
Predefined user roles
network-admin
mdc-admin
Parameters
output-pcr: Specifies the peak output rate of ATM cells in kbps. For more information about the value range, see Table 6.
output-scr: Specifies the sustainable output rate of ATM cells in kbps. Its value ranges are the same as those of the output-pcr argument, and its value is equal to or smaller than the value of the output-pcr argument.
output-mbs: Specifies the maximum burst size for ATM cells (maximum number of ATM cells that the output interface can cache). The value range for this argument is 1 to 512.
Usage guidelines
You can use this command as well as the service cbr, service ubr, and service vbr-rt commands to set the service type and parameters of a PVC. If you execute this command multiple times, the most recent configuration takes effect.
Examples
# Create a PVC named aa on ATM 2/1/0, and set the VPI/VCI, service type, output-pcr, output-scr, and output-mbs to 1/101, VBR-NRT, 100000, 50000, and 320, respectively.
<Sysname> system-view
[Sysname] interface atm 2/1/0
[Sysname-ATM2/1/0] pvc aa 1/101
[Sysname-ATM2/1/0-pvc-aa-1/101] service vbr-nrt 100000 50000 320
Related commands
service cbr
service ubr
service vbr-rt
service vbr-rt
Use service vbr-rt to set the PVC service type to VBR-RT and set the related parameters.
Use undo service to restore the default.
Syntax
service vbr-rt output-pcr output-scr output-mbs
undo service
Default
The service type of a PVC is UBR. The peak output rate of ATM cells equals the maximum bandwidth of the interface to which the PVC belongs.
Views
PVC view
PVC view in a PVC group
Predefined user roles
network-admin
mdc-admin
Parameters
output-pcr: Specifies the peak output rate of ATM cells in kbps. For more information about the value range, see Table 6.
output-scr: Specifies the sustainable output rate of ATM cells in kbps. Its value ranges are the same as those of the output-pcr argument, and its value is equal to or smaller than the value of the output-pcr argument.
output-mbs: Specifies the maximum burst size of ATM cells (maximum number of ATM cells that the output interface can cache). The value range for this argument is 1 to 512. For ATM E3 interfaces, the value range for this argument is 1 to 512.
Usage guidelines
You can use this command as well as the service cbr, service ubr, and service vbr-nrt commands to set the service type and parameters of a PVC. If you execute this command multiple times, the most recent configuration takes effect.
This command is not applicable to ATM E1 interfaces.
Examples
# Create a PVC named aa on ATM 2/1/0, and set the VPI/VCI, service type, output-pcr, output-scr, and output-mbs to 1/101, VBR-RT, 100000, 50000, and 320, respectively.
<Sysname> system-view
[Sysname] interface atm 2/1/0
[Sysname-ATM2/1/0] pvc aa 1/101
[Sysname-ATM2/1/0-pvc-aa-1/101] service vbr-rt 100000 50000 320
service cbr
service ubr
service vbr-nrt
shutdown
Use shutdown to shut down a PVC.
Use undo shutdown to bring up a PVC.
Syntax
shutdown
undo shutdown
Default
A PVC is up.
Views
PVC view
PVC view in a PVC group
Predefined user roles
network-admin
mdc-admin
Examples
# Bring up PVC 0/100 on ATM 2/1/0.1.
<Sysname> system-view
[Sysname] interface atm 2/1/0.1
[Sysname-ATM2/1/0.1] pvc 0/100
[Sysname-ATM2/1/0.1-pvc-0/100] undo shutdown
