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Note | ATM is not supported on the Cisco ASR 900 RSP3 module. |
This chapter describes how to configure ATM on the Cisco ASR 903 Series Aggregation Services Routers. Effective Cisco IOS-XE Release 3.18, Clear Channel ATM is supported on Cisco ASR 900 RSP2 Module .
this is for suppressing.
Asynchronous Transfer Mode (ATM) uses one Virtual Circuit (VC) to carry all traffic to the next hop address. Even with VC multiplexing, a single VC carries all traffic of the same protocol to the next hop address. Though Weighted Random Early Discard (Per-VC (D)WRED) and WFQ can classify and prioritize the packets, they all share one single Quality of Service (QoS) VC.
Note | If you have configured ATM on any IM and and you perform a IM OIR, then the standby RSP is reloaded. This is applicable to RSP1 and RSP2 Modules. |
When the clear channel ATM feature is enabled, the entire payload rate over Synchronous Optical Network (SONET) or the Synchronous Digital Hierarchy (SDH) line is used as a single flow of cells or packets. An STS-3c/VC4 container is used to represent the OC-3/STM-1 concatenation types (OC-3 clear channels). Up to four OC-3/STM-1 are supported.
Clear channel ATM supports the following Layer 1 features:
Framing configuration between SONET and SDH
Local (diagnostic) and line (network) loopback
Alarm detection and reporting capabilities
System, local and line timing options
Effective Cisco IOS-XE Release 3.18, Clear Channel ATM on OC-3/STM-1 is supported on Cisco ASR 900 RSP2 Module .
Clear channel ATM Pseudowire supports the following Layer 2 features:
Permanent Virtual Path (PVP)
For configuration examples, see the "Configuring Pseudowire" chapter.
QoS experimental bits (Exp) marking on ATM Layer 2 interfaces
For configuration examples, see the "Configuring Pseudowire: chapter.
This section explains how to configure ATM on T1, E1, OC-3, and OC-12 interfaces.
To configure ATM on a T1 or E1 controller, follow these steps:
1.
configure
terminal
2.
card
type
{t1 |
e1}
slot
subslot
3.
controller
t1
slot/subslot/port
4.
framing
esf
5.
linecode
b8zs
6.
cablelength
long
db-loss-value
7.
atm
8.
exit
9.
interface
atm
slot/subslot/port
10.
no
ip
address
11.
no
atm
enable-ilmi-trap
12.
interface
atm
slot/subslot/port.subinterface point-to-point
13.
pvc
vpi/vci
l2transport
14.
encapsulation
aal5
15.
xconnect
peer-router-id
vcid
encapsulation
mpls
To configure ATM on OC-3 interface module with SDH framing, perform these steps:
1.
configure
terminal
2.
controller
sonet
slot/subslot/port
3.
framing
sdh
4.
aug
mapping
au-4
5.
au-4
au-4-number
tug-3
tug-3-number
6.
tug-2
tug-2-number
e1
e1-line-number
atm
7.
interface
ATM
slot/subslot/port.au-4/tug-3/tug-2/e1.subint
point-to-point
8.
pvc
vpi/vci
l2transport
9.
encapsulation
aal5
10.
xconnect
remote-ip-address
vc-id
encapsulation
mpls
To configure ATM on OC-3 interface module with SONET framing, perform these steps:
1.
configure
terminal
2.
controller
sonet
slot/subslot/port
3.
framing
sonet
4.
sts-1 {
1 -
12 |
1 -
3 |
4 -
6 |
7 - 9
|
10 -
12}
5.
vtg
vtg_number
t1
t1_line_number
atm
6.
interface
ATM
slot/subslot/port.sts-1/vtg/t1.subint.point-to-point
7.
pvc
vpi/vci
l2transport
8.
encapsulation
aal5
9.
xconnect
remote-ip-address
vc-id
encapsulation
mpls
This section describes how to configure an ATM interface.
Perform the following task to enable the ATM interface:
1.
configure
terminal
2.
interface
atm
slot/subslot/port.subport
3.
no
shutdown
Command or Action | Purpose | |
---|---|---|
Step 1 | configure
terminal
|
Enters global configuration mode from the terminal. |
Step 2 | interface
atm
slot/subslot/port.subport
Example: interface atm 0/5/0.1/1/1.1
|
Specifies the ATM interface using the appropriate format of the interface atm command. |
Step 3 |
no
shutdown
|
Changes the shutdown state to up and enables the ATM interface, thereby beginning the segmentation and reassembly (SAR) operation on the interface. |
To configure ATM interface on TDM IMs, follow these steps:
1.
configure
terminal
2.
card
type
{t1 |
e1}
slot
subslot
3.
controller
t1
slot/subslot/port
4.
atm
5.
exit
6.
interface
atm
slot/subslot/port.subinterface point-to-point
7.
pvc
vpi/vci
l2transport
8.
encapsulation
aal5
9.
xconnect
peer-router-id
vcid
encapsulation
mpls
Command or Action | Purpose | |
---|---|---|
Step 1 |
configure
terminal
Example: Router# configure terminal |
Enters the global configuration mode. |
Step 2 | card
type
{t1 |
e1}
slot
subslot
Example: Router(config)# card type t1 0 1 |
Specifies the slot and subslot number of the T1 or E1 interface. |
Step 3 | controller
t1
slot/subslot/port
Example: Router(config)# controller t1 0/1/0 |
Enters controller configuration mode to configure the T1 interface. |
Step 4 | atm
Example: Router(config-controller)# atm |
Configures the interface for ATM. |
Step 5 | exit
Example: Router(config-controller)# exit |
Enters global configuration mode. |
Step 6 | interface
atm
slot/subslot/port.subinterface point-to-point
Example: Router(config)# interface atm 0/1/1.1 point-to-point |
Enters subinterface configuration mode and creates a point-to-point subinterface. |
Step 7 | pvc
vpi/vci
l2transport
Example: Router(config-subif)# pvc 10/100 l2transport |
Assigns a VPI and virtual channel identifier (VCI). |
Step 8 | encapsulation
aal5
Example: (cfg-if-atm-l2trans-pvc)# encapsulation aal5 |
Sets the encapsulation type as aal5. |
Step 9 | xconnect
peer-router-id
vcid
encapsulation
mpls
Example: Router(cfg-if-atm-l2trans-pvc)# xconnect 10.1.2.3 1 encapsulation mpls |
Binds the attachment circuit to a pseudowire VC. |
To use a permanent virtual circuit (PVC), you must configure the PVC into both the router and the ATM switch. PVCs remain active until the circuit is removed from either configuration.
When a PVC is configured, all the configuration options are passed on to the ATM interface. These PVCs are writable into the nonvolatile RAM (NVRAM) as part of the Route Processor (RP) configuration and are used when the RP image is reloaded.
Some ATM switches might have point-to-multipoint PVCs that do the equivalent of broadcasting. If a point-to-multipoint PVC exists, then that PVC can be used as the sole broadcast PVC for all multicast requests.
To configure a PVC, perform the tasks in the following sections.
To use a permanent virtual circuit (PVC), configure the PVC in both the router and the ATM switch. PVCs remain active until the circuit is removed from either configuration. To create a PVC on the ATM interface and enter interface ATM VC configuration mode, perform the following procedure beginning in global configuration mode:
1. Device(config)# interface atm slot/subslot/port [.subinterface-number {multipoint | point-to-point}]
2. Device(config-if)# pvc [name ] vpi /vci
3. Device(config-if-atm-vc)# protocol protocol {protocol-address | inarp} [[no] broadcast]
4. Device(config-if-atm-vc)# inarp minutes
5. Device(config-if-atm-vc)# encapsulation {aal5snap}
6. Device(config-if-atm-vc)# end
Command or Action | Purpose | |||
---|---|---|---|---|
Step 1 | Device(config)# interface atm slot/subslot/port [.subinterface-number {multipoint | point-to-point}] |
Enters subinterface configuration mode for the specified port on the ATM Interface Module (IM), where:
| ||
Step 2 | Device(config-if)# pvc [name ] vpi /vci |
Configures a new ATM PVC by assigning its VPI/VCI numbers and enters ATM VC configuration mode. The valid values for vpi /vci are:
| ||
Step 3 |
Device(config-if-atm-vc)#
protocol
protocol
{protocol-address |
inarp} [[no]
broadcast]
Example:
|
Configures the PVC for a particular protocol and maps it to a specific protocol-address .
| ||
Step 4 | Device(config-if-atm-vc)# inarp minutes |
(Optional) If using Inverse ARP, configures how often the PVC transmits Inverse ARP requests to confirm its address mapping. The valid range is 1 to 60 minutes, with a default of 15 minutes. | ||
Step 5 | Device(config-if-atm-vc)# encapsulation {aal5snap} |
(Optional) Configures the ATM adaptation layer (AAL) and encapsulation type. | ||
Step 6 | Device(config-if-atm-vc)# end |
Exits ATM VC configuration mode and returns to privileged EXEC mode. |
To verify the configuration of a particular PVC, use the show atm pvc command:
Device# show atm pvc 1/120 ATM3/1/0.120: VCD: 1, VPI: 1, VCI: 120 UBR, PeakRate: 149760 AAL5-LLC/SNAP, etype:0x0, Flags: 0xC20, VCmode: 0x0 OAM frequency: 0 second(s), OAM retry frequency: 1 second(s) OAM up retry count: 3, OAM down retry count: 5 OAM Loopback status: OAM Disabled OAM VC status: Not Managed ILMI VC status: Not Managed InARP frequency: 15 minutes(s) Transmit priority 3 InPkts: 1394964, OutPkts: 1395069, InBytes: 1833119, OutBytes: 1838799 InPRoc: 1, OutPRoc: 1, Broadcasts: 0 InFast: 0, OutFast: 0, InAS: 94964, OutAS: 95062 InPktDrops: 0, OutPktDrops: 0 CrcErrors: 0, SarTimeOuts: 0, OverSizedSDUs: 0, LengthViolation: 0, CPIErrors: 0 Out CLP=1 Pkts: 0 OAM cells received: 0 F5 InEndloop: 0, F5 InSegloop: 0, F5 InAIS: 0, F5 InRDI: 0 F4 InEndloop: 0, F4 InSegloop: 0, F4 InAIS: 0, F4 InRDI: 0 OAM cells sent: 0 F5 OutEndloop: 0, F5 OutSegloop: 0, F5 OutRDI: 0 F4 OutEndloop: 0, F4 OutSegloop: 0, F4 OutRDI: 0 OAM cell drops: 0 Status: UP
Note | To verify the configuration and current status of all PVCs on a particular interface, you can also use the show atm vc interface command. |
The ATM interface supports a static mapping scheme that identifies the network address of remote hosts or routers. This section describes how to map a PVC to an address, which is a required task for configuring a PVC.
Note | If you enable or disable broadcasting directly on a PVC using the protocol command, this configuration will take precedence over any direct configuration using the broadcast command. |
See examples of PVC configurations in the section "ATM Configuration Examples".
To map a protocol address to a PVC, use the following command in interface-ATM-VC configuration mode:
Command |
Purpose |
---|---|
Router(config-if-atm-vc)# protocol protocol protocol-address [[no] broadcast] |
Maps a protocol address to a PVC. |
To configure the ATM adaptation layer (AAL) and encapsulation type, use the following command beginning in interface-ATM-VC configuration mode:
Command |
Purpose |
---|---|
Router(config-if-atm-vc)# encapsulation aal5 encap |
Configures the ATM adaptation layer (AAL) and encapsulation type.
|
The supported traffic parameters are part of the following service categories: Constant Bit Rate (CBR), Unspecified Bit Rate (UBR), Variable Bit Rate Non Real-Time (VBR-NRT), and real-time Variable Bit Rate (VBR). Only one of these categories can be specified per PVC connection so if a new one is entered, it will replace the existing one.
The -pcr and -mcr arguments are the peak cell rate and minimum cell rate, respectively. The -scr and -mbs arguments are the sustainable cell rate and maximum burst size, respectively.
To configure PVC traffic parameters, use one of the following commands beginning in interface-ATM-VC configuration mode:
Command |
Purpose |
---|---|
Router(config-if-atm-vc)# cbr peak_cell_rate_KBPS |
Configures the Constant Bit Rate (CBR). |
Router(config-if-atm-vc)# ubr output-pcr |
Configures the Unspecified Bit Rate (UBR). |
Router(config-if-atm-vc)# vbr-nrt output-pcr output-scr output-mbs |
Configures the Variable Bit Rate-Non Real Time (VBR-NRT) QOS. |
Router(config-if-atm-vc)# vbr-rt peak-rate average-rate burst
|
Configures the real-time Variable Bit Rate (VBR). (Cisco MC3810 and Multiport T1/E1 ATM Network Module only.) |
Inverse ARP is enabled by default when you create a PVC using the pvc command. Once configured, a protocol mapping between an ATM PVC and a network address is learned dynamically as a result of the exchange of ATM Inverse ARP packets.
Inverse ARP is supported on PVCs running IP or IPX and no static map is configured. If a static map is configured, Inverse ARP will be disabled.
When PVC discovery is enabled on an active PVC and the router terminates that PVC, the PVC will generate an ATM Inverse ARP request. This allows the PVC to resolve its own network addresses without configuring a static map.
Address mappings learned through Inverse ARP are aged out. However, mappings are refreshed periodically. This period is configurable using the inarp command, which has a default of 15 minutes.
You can also enable Inverse ARP using the protocol command. This is necessary only if you disabled Inverse ARP using the no protocol command. For more information about this command, refer to the "ATM Commands" chapter in the Cisco IOS Asynchronous Transfer Mode Command Reference.
For an example of configuring Inverse ARP, see the section "Example Enabling Inverse ARP" at the end of this chapter.
To enable Inverse ARP on an ATM PVC, use the following commands beginning in global configuration mode:
1.
interface
atm
slot/subslot/port.subinterface {multipoint |
point-to-point}
2.
pvc [name]
vpi
/
vci
3.
encapsulation
aal5snap
4.
inarp
minutes
Command or Action | Purpose | |
---|---|---|
Step 1 |
interface
atm
slot/subslot/port.subinterface {multipoint |
point-to-point}
Example: Router(config)# interface atm 0/5/0.1/1/1/1.1 {multipoint | point-to-point} |
Specifies the ATM interface using the appropriate format of the interface atm command.1 |
Step 2 |
pvc [name]
vpi
/
vci
|
Specifies an ATM PVC by name (optional) and VPI/VCI numbers. |
Step 3 | encapsulation
aal5snap
|
Configures AAL5 LLC-SNAP encapsulation if it is not already configured. |
Step 4 | inarp
minutes
|
(Optional) Adjusts the Inverse ARP time period. |
To send duplicate broadcast packets for all protocols configured on a PVC, use the following command in interface-ATM-VC configuration mode:
Note | If you enable or disable broadcasting directly on a PVC using the protocol command, this configuration will take precedence over any direct configuration using the broadcast command. |
Command |
Purpose |
---|---|
Router(config-if-atm-vc)# broadcast
|
Sends duplicate broadcast packets for all protocols configured on a PVC. |
Creating a multipoint subinterface allows you to create a point-to-multipoint PVC that can be used as a broadcast PVC for all multicast requests. To create a PVC on a multipoint subinterface, use the following procedure beginning in global configuration mode:
1. Router(config)# interface atm slot/subslot/port.subinterface multipoint
2. Router(config-subif)# ip address address mask
3. Router(config-subif)# no ip directed-broadcast
4. Router(config-subif)# pvc [name ] vpi /vci
5. Router(config-if-atm-vc)# protocol protocol {protocol-address | inarp} broadcast
6. Router(config-if-atm-vc)# inarp minutes
7. Router(config-if-atm-vc)# encapsulation{aal5snap}
8. Router(config-if-atm-vc)# end
Command or Action | Purpose | |||
---|---|---|---|---|
Step 1 | Router(config)# interface atm slot/subslot/port.subinterface multipoint |
Creates the specified point-to-multipoint subinterface on the given port on the specified ATM SPA, and enters subinterface configuration mode, where:
| ||
Step 2 | Router(config-subif)# ip address address mask |
Assigns the specified IP address and subnet mask to this subinterface. | ||
Step 3 | Router(config-subif)# no ip directed-broadcast |
(Optional) Disables the forwarding of IP directed broadcasts, which are sometimes used in denial of service (DOS) attacks. | ||
Step 4 | Router(config-subif)# pvc [name ] vpi /vci |
Configures a new ATM PVC by assigning its VPI/VCI numbers and enters ATM VC configuration mode. The valid values for vpi /vci are:
| ||
Step 5 | Router(config-if-atm-vc)# protocol protocol {protocol-address | inarp} broadcast |
Configures the PVC for a particular protocol and maps it to a specific protocol-address .
| ||
Step 6 | Router(config-if-atm-vc)# inarp minutes |
(Optional) If using Inverse ARP, configures how often the PVC transmits Inverse ARP requests to confirm its address mapping. The valid range is 1 to 60 minutes, with a default of 15 minutes. | ||
Step 7 | Router(config-if-atm-vc)# encapsulation{aal5snap} |
(Optional) Configures the ATM adaptation layer (AAL) and encapsulation type.
| ||
Step 8 | Router(config-if-atm-vc)# end |
Exits interface configuration mode and returns to privileged EXEC mode. |
You can customize the ATM interface. The features you can customize have default values that will most likely suit your environment and probably need not be changed. However, you might need to enter configuration commands, depending upon the requirements for your system configuration and the protocols you plan to route on the interface.
Each interface has a default maximum packet size or maximum transmission unit (MTU) size. For ATM interfaces, this number defaults to 4470 bytes.
To set the maximum MTU size, use the following command in interface configuration mode:
Command |
Purpose |
||
---|---|---|---|
Router(config-subif)# mtu bytes |
Sets the maximum MTU size on the subinterface.
|
This section explains how to configure clear channel ATM on an OC-3 IM.
To configure ATM on an OC-3 IM with SONET framing, perform these steps:
1.
configure
terminal
2.
controller
sonet
slot/subslot/port
3.
framing
sonet
4.
sts-1
sts-identifier
atm
5.
interface
ATM
slot/subslot/port:sts-1-num
6.
pvc
vpi/vci
l2transport
7.
encapsulation
aal5
8.
xconnect
remote-ip-address
vc-id
encapsulation
mpls
Command or Action | Purpose | |
---|---|---|
Step 1 |
configure
terminal
Example: Router# configure terminal |
Enters global configuration mode. |
Step 2 | controller
sonet
slot/subslot/port
Example: Router(config)#controller sonet 0/1/0 |
|
Step 3 | framing
sonet
Example: Router(config-controller)# framing sonet |
Specifies the framing type as SONET. |
Step 4 | sts-1
sts-identifier
atm
Example: Router(config-controller)# sts-1 1 - 3 atm |
|
Step 5 | interface
ATM
slot/subslot/port:sts-1-num
Example: Router(config-controller)# interface ATM 0/1/0:1 Router(config-controller)# interface ATM 0/1/0:1.1 point-to-point |
|
Step 6 | pvc
vpi/vci
l2transport
Example: Router(config-subif)#pvc 10/100 l2transport |
Assigns a virtual path identifier (VPI) and virtual channel identifier (VCI). |
Step 7 | encapsulation
aal5
Example: Router(cfg-if-atm-l2trans-pvc)#encapsulation aal5 |
Sets the PVC encapsulation type to AAL5. |
Step 8 | xconnect
remote-ip-address
vc-id
encapsulation
mpls
Example: Router(cfg-if-atm-l2trans-pvc)#xconnect 10.1.1.101 100 encapsulation mpls |
Binds the attachment circuit to the ATM interface to create a pseudowire. |
To configure clear channel ATM in OC-3 mode with SDH framing, perform these steps:
1.
configure
terminal
2.
controller
sonet
slot/subslot/port
3.
framing
sdh
4.
aug
mapping
au-4
5.
au-4
au-4-number
atm
6.
interface
ATM
slot/subslot/port:au-4-num.subint
point-to-point
7.
pvc
vpi/vci
l2transport
8.
encapsulation
aal5
9.
xconnect
remote-ip-address
vc-id
encapsulation
mpls
Command or Action | Purpose | |
---|---|---|
Step 1 |
configure
terminal
Example: Router# configure terminal |
Enters global configuration mode. |
Step 2 | controller
sonet
slot/subslot/port
Example: Router(config)#controller sonet 0/1/0 |
|
Step 3 | framing
sdh
Example: Router(config-controller)#framing sdh |
Specifies the framing type as SDH. |
Step 4 | aug
mapping
au-4
Example: Router(config-controller)#aug mapping au-4 |
Configures the AUG to be derived from AU-4. |
Step 5 | au-4
au-4-number
atm
Example: Router(config-controller)#au-4 1 atm |
Specifies the Administrative Unit type 4 (AU-4) numbers and enters clear channel ATM mode. |
Step 6 | interface
ATM
slot/subslot/port:au-4-num.subint
point-to-point
Example: Router(config-controller)# interface ATM ATM0/1/0:1.1 point-to-point |
Specifies the ATM interface as the point-to-point interface type. |
Step 7 | pvc
vpi/vci
l2transport
Example: Router(config-subif)#pvc 10/100 l2transport |
Assigns a virtual path identifier (VPI) and virtual channel identifier (VCI). |
Step 8 | encapsulation
aal5
Example: Router(cfg-if-atm-l2trans-pvc)#encapsulation aal5 |
Sets the PVC encapsulation type to AAL5. |
Step 9 | xconnect
remote-ip-address
vc-id
encapsulation
mpls
Example: Router(cfg-if-atm-l2trans-pvc)#xconnect 10.1.1.101 100 encapsulation mpls |
Binds the attachment circuit to the ATM interface to create a pseudowire. |
The examples in the following sections illustrate how to configure ATM for the features described in this chapter. The examples below are presented in the same order as the corresponding configuration task sections:
The following example shows how to configure main ATM interface:
enable configure terminal interface atm 0/0/0 no shutdown
The following example shows how to create a PVC on an ATM main interface with AAL5 encapsulation configured and a VBR-NRT QOS specified.
interface 0/5/0.1/1/1/1 point-to-point pvc 1/40 encapsulation aal5 vbr-nrt 1000 500 50 exit
The figure below illustrates a fully meshed network. The configurations for routers A, B, and C follow the figure. In this example, the routers are configured to use PVCs. Fully meshed indicates that any workstation can communicate with any other workstation. Note that the two protocol statements configured in router A identify the ATM addresses of routers B and C. The two protocolstatements in router B identify the ATM addresses of routers A and C. The two protocol statements in router C identify the ATM addresses of routers A and B. For further information, refer to the sections “Creating a PVC” and “Mapping a Protocol Address to a PVC”.
ip routing
!
interface atm 0/5/0.1/1/1/1
ip address 131.108.168.1 255.255.255.0
pvc 0/32
protocol ip 131.108.168.2 broadcast
exit
!
pvc 0/33
protocol ip 131.108.168.3 broadcast
exit
ip routing
!
interface atm 0/5/0.1/1/1/1.1
ip address 131.108.168.2 255.255.255.0
pvc 0/32
protocol ip 131.108.168.1 broadcast
exit
!
pvc 0/34
protocol ip 131.108.168.3 broadcast
exit
ip routing
!
interface atm 0/5/0.1/1/1/1.1
ip address 131.108.168.3 255.255.255.0
pvc 0/33
protocol ip 131.108.168.1 broadcast
exit
!
pvc 0/34
protocol ip 131.108.168.2 broadcast
exit
The following example shows how to enable Inverse ARP on an ATM interface and specifies an Inverse ARP time period of 10 minutes.
interface atm 2/0/0.1 pvc 1/32 inarp 10 exit
interface ATM 0/0/0.9 point-to-point mtu 4470 bandwidth 34000 ip vrf forwarding vrfexample ip address 192.0.2.1 255.255.255.0 ip mtu 4470 pvc 11/105 ubr 38 oam-pvc manage encapsulation aal5snap ! interface ATM 0/0/0.11 point-to-point mtu 4470 bandwidth 7000 ip address 192.0.2.2 255.255.255.0 ip mtu 4470 pvc 100/50 cbr 7000 encapsulation aal5snap max-reserved-bandwidth 100
After configuring an ATM interface, you can display its status. You can also display the current state of the ATM network and connected virtual circuits. To show current virtual circuits and traffic information, use the following commands in EXEC mode:
Command |
Purpose |
||
---|---|---|---|
Router# show arp
|
Displays entries in the ARP table. |
||
Router# show atm class-links {vpi / vci | name} |
Displays PVC parameter configurations and where the parameter values are inherited from. |
||
Router# show atm interface atm slot /0 Router# show atm interface atm slot / port-adapter /0 Router# show atm interface atm number |
Displays ATM-specific information about the ATM interface using the appropriate format of the show atm interface atm command.2 |
||
Router# show atm map
|
Displays the list of all configured ATM static maps to remote hosts on an ATM network. |
||
Router# show atm pvc [vpi / vci | name | interface atm interface_number] |
Displays all active ATM PVCs and traffic information. |
||
Router# show atm traffic
|
Displays global traffic information to and from all ATM networks connected to the router and a list of counters of all ATM traffic on this router. |
||
Router# show atm vc [vcd-number | [range lower-limit-vcd upper-limit-vcd] [interface ATM interface-number] [detail [prefix {vpi/vci | vcd | interface | vc_name}]] [connection-name] | signalling [freed-svcs | [cast-type {p2mp | p2p}] [detail] [interface ATM interface-number]] | summary ATM interface-number] |
Displays all active ATM virtual circuits (PVCs ) and traffic information.
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Router# show interfaces atm controller.port-channels.subinterface
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Displays statistics for the ATM interface using the appropriate format of the show interfaces atm command. |
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Router# show network-clocks
synchronization
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Displays the clock signal sources and priorities that you established on the router. |
Related Topic |
Document Title |
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Cisco IOS commands |
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ATM commands |
Cisco IOS Asynchronous Transfer Mode Command Reference |
Standard |
Title |
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No new or modified standards are supported by this feature, and support for existing standards has not been modified by this feature. |
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MIB |
MIBs Link |
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To locate and download MIBs for selected platforms, Cisco IOS XE software releases, and feature sets, use Cisco MIB Locator found at the following URL: |
RFC |
Title |
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No new or modified RFCs are supported by this feature, and support for existing RFCs has not been modified by this feature. |
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Description |
Link |
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The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies. To receive security and technical information about your products, you can subscribe to various services, such as the Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds. Access to most tools on the Cisco Support website requires a Cisco.com user ID and password. |