Examples
The following is sample output from the
show atm vc command when no value for the
vcd argument is specified. The status field is either ACTIVE or IN (inactive).
Router# show atm vc
Interface VCD VPI VCI Type AAL/Encaps Peak Avg. Burst Status
ATM2/0 1 0 5 PVC AAL5-SAAL 155000 155000 93 ACTIVE
ATM2/0.4 3 0 32 SVC AAL5-SNAP 155000 155000 93 ACTIVE
ATM2/0.65432 10 10 10 PVC AAL5-SNAP 100000 40000 10 ACTIVE
ATM2/0 99 0 16 PVC AAL5-ILMI 155000 155000 93 ACTIVE
ATM2/0.105 250 33 44 PVC AAL5-SNAP 155000 155000 93 ACTIVE
ATM2/0.100 300 22 33 PVC AAL5-SNAP 155000 155000 93 ACTIVE
ATM2/0.12345 2047 255 65535 PVC AAL5-SNAP 56 28 2047 ACTIVE
The following is sample output from the
show atm vc command when a
vcd value is specified for a circuit emulation service (CES) circuit:
Router# show atm vc 2
ATM6/0: VCD: 2, VPI: 10, VCI: 10
PeakRate: 2310, Average Rate: 2310, Burst Cells: 94
CES-AAL1, etype:0x0, Flags: 0x20138, VCmode: 0x0
OAM DISABLED
InARP DISABLED
OAM cells received: 0
OAM cells sent: 334272
Status: ACTIVE
The following is sample output from the
show atm vc command when a
vcd value is specified, displaying statistics for that virtual circuit only:
Router# show atm vc 8
ATM4/0: VCD: 8, VPI: 8, VCI: 8
PeakRate: 155000, Average Rate: 155000, Burst Cells: 0
AAL5-LLC/SNAP, etype:0x0, Flags: 0x30, VCmode: 0xE000
OAM frequency: 0 second(s)
InARP frequency: 1 minute(s)
InPkts: 181061, OutPkts: 570499, InBytes: 757314267, OutBytes: 2137187609
InPRoc: 181011, OutPRoc: 10, Broadcasts: 570459
InFast: 39, OutFast: 36, InAS: 11, OutAS: 6
OAM cells received: 0
OAM cells sent: 0
Status: UP
The following is sample output from the
show atm vc command when a
vcd value is specified, AAL3/4 is enabled, an ATM Switched Multimegabit Data Service (SMDS) subinterface has been defined, and
a range of message identifier numbers (MIDs) has been assigned to the PVC:
Router# show atm vc 1
ATM4/0.1: VCD: 1, VPI: 0, VCI: 1
PeakRate: 0, Average Rate: 0, Burst Cells: 0
AAL3/4-SMDS, etype:0x1, Flags: 0x35, VCmode: 0xE200
MID start: 1, MID end: 16
InPkts: 0, OutPkts: 0, InBytes: 0, OutBytes: 0
InPRoc: 0, OutPRoc: 0, Broadcasts: 0
InFast: 0, OutFast: 0, InAS: 0, OutAS: 0
The following is sample output from the
show atm vc command when a
vcd value is specified and generation of Operation, Administration, and Maintenance (OAM) F5 loopback cells has been enabled:
Router# show atm vc 7
ATM4/0: VCD: 7, VPI: 7, VCI: 7
PeakRate: 0, Average Rate: 0, Burst Cells: 0
AAL5-LLC/SNAP, etype:0x0, Flags: 0x30, VCmode: 0xE000
OAM frequency: 10 second(s)
InARP DISABLED
InPkts: 0, OutPkts: 0, InBytes: 0, OutBytes: 0
InPRoc: 0, OutPRoc: 0, Broadcasts: 0
InFast:0, OutFast:0, InAS:0, OutAS:0
OAM cells received: 0
OAM cells sent: 1
Status: UP
The following is sample output from the
show atm vc command when a
vcd value is specified, and there is an incoming multipoint virtual circuit:
Router# show atm vc 3
ATM2/0: VCD: 3, VPI: 0, VCI: 33
PeakRate: 0, Average Rate: 0, Burst Cells: 0
AAL5-MUX, etype:0x809B, Flags: 0x53, VCmode: 0xE000
OAM DISABLED
InARP DISABLED
InPkts: 6646, OutPkts: 0, InBytes: 153078, OutBytes: 0
InPRoc: 6646, OutPRoc: 0, Broadcasts: 0
InFast: 0, OutFast: 0, InAS: 0, OutAS: 0
interface = ATM2/0, call remotely initiated, call reference = 18082
vcnum = 3, vpi = 0, vci = 33, state = Active
aal5mux vc, multipoint call
Retry count: Current = 0, Max = 10
timer currently inactive, timer value = never
Root Atm Nsap address: DE.CDEF.01.234567.890A.BCDE.F012.3456.7890.1234.12
The following is sample output from the
show atm vc command when a
vcd value is specified, and there is an outgoing multipoint virtual circuit:
Router# show atm vc 6
ATM2/0: VCD: 6, VPI: 0, VCI: 35
PeakRate: 0, Average Rate: 0, Burst Cells: 0
AAL5-MUX, etype:0x800, Flags: 0x53, VCmode: 0xE000
OAM DISABLED
InARP DISABLED
InPkts: 0, OutPkts: 818, InBytes: 0, OutBytes: 37628
InPRoc: 0, OutPRoc: 0, Broadcasts: 818
InFast: 0, OutFast: 0, InAS: 0, OutAS: 0
interface = ATM2/0, call locally initiated, call reference = 3
vcnum = 6, vpi = 0, vci = 35, state = Active
aal5mux vc, multipoint call
Retry count: Current = 0, Max = 10
timer currently inactive, timer value = never
Leaf Atm Nsap address: DE.CDEF.01.234567.890A.BCDE.F012.3456.7890.1234.12
Leaf Atm Nsap address: CD.CDEF.01.234567.890A.BCDE.F012.3456.7890.1234.12
The following is sample output from the
show atm vc command when a
vcd value is specified and there is a PPP-over-ATM connection:
Router# show atm vc 1
ATM8/0.1: VCD: 1, VPI: 41, VCI: 41
PeakRate: 155000, Average Rate: 155000, Burst Cells: 96
AAL5-CISCOPPP, etype:0x9, Flags: 0xC38, VCmode: 0xE000
virtual-access: 1, virtual-template: 1
OAM DISABLED
InARP DISABLED
InPkts: 13, OutPkts: 10, InBytes: 198, OutBytes: 156
InPRoc: 13, OutPRoc: 10, Broadcasts: 0
InFast: 0, OutFast: 0, InAS: 0, OutAS: 0
OAM cells received: 0
OAM cells sent: 0
The following is sample output from the
show atm vc command for IP multicast virtual circuits. The display shows the leaf count for multipoint VCs opened by the root. VCD 3
is a root of a multipoint VC with three leaf routers. VCD 4 is a leaf of some other router’s multipoint VC. VCD 12 is a root
of a multipoint VC with only one leaf router.
Router# show atm vc
VCD/ Peak Avg/Min Burst
Interface Name VPI VCI Type Encaps Kbps Kbps Cells Sts
0/0 1 0 5 PVC SAAL 155000 155000 96 UP
0/0 2 0 16 PVC ILMI 155000 155000 96 UP
0/0 3 0 124 MSVC-3 SNAP 155000 155000 96 UP
0/0 4 0 125 MSVC SNAP 155000 155000 96 UP
0/0 5 0 126 MSVC SNAP 155000 155000 96 UP
0/0 6 0 127 MSVC SNAP 155000 155000 96 UP
0/0 9 0 130 MSVC SNAP 155000 155000 96 UP
0/0 10 0 131 SVC SNAP 155000 155000 96 UP
0/0 11 0 132 MSVC-3 SNAP 155000 155000 96 UP
0/0 12 0 133 MSVC-1 SNAP 155000 155000 96 UP
0/0 13 0 134 SVC SNAP 155000 155000 96 UP
0/0 14 0 135 MSVC-2 SNAP 155000 155000 96 UP
0/0 15 0 136 MSVC-2 SNAP 155000 155000 96 UP
The following is sample output from the
show atm vc command for an IP multicast virtual circuit. The display shows the owner of the VC and leaves of the multipoint VC. This
VC was opened by IP multicast. The three leaf routers’ ATM addresses are included in the display. The VC is associated with
IP group address 10.1.1.1.
Router# show atm vc 11
ATM0/0: VCD: 11, VPI: 0, VCI: 132
PeakRate: 155000, Average Rate: 155000, Burst Cells: 96
AAL5-LLC/SNAP, etype:0x0, Flags: 0x650, VCmode: 0xE000
OAM DISABLED
InARP DISABLED
InPkts: 0, OutPkts: 12, InBytes: 0, OutBytes: 496
InPRoc: 0, OutPRoc: 0, Broadcasts: 12
InFast: 0, OutFast: 0, InAS: 0, OutAS: 0
OAM cells received: 0
OAM cells sent: 0
Status: ACTIVE, TTL: 2, VC owner: IP Multicast (10.1.1.1)
interface = ATM0/0, call locally initiated, call reference = 2
vcnum = 11, vpi = 0, vci = 132, state = Active
aal5snap vc, multipoint call
Retry count: Current = 0, Max = 10
timer currently inactive, timer value = 00:00:00
Leaf Atm Nsap address: 47.0091810000000002BA08E101.444444444444.02
Leaf Atm Nsap address: 47.0091810000000002BA08E101.333333333333.02
Leaf Atm Nsap address: 47.0091810000000002BA08E101.222222222222.02
The following is sample output from the
show atm vc command where no VCD is specified and private VCs are present:
Router# show atm vc
AAL / Peak Avg. Burst
Interface VCD VPI VCI Type Encapsulation Kbps Kbps Cells Status
ATM1/0 1 0 40 PVC AAL5-SNAP 0 0 0 ACTIVE
ATM1/0 2 0 41 PVC AAL5-SNAP 0 0 0 ACTIVE
ATM1/0 3 0 42 PVC AAL5-SNAP 0 0 0 ACTIVE
ATM1/0 4 0 43 PVC AAL5-SNAP 0 0 0 ACTIVE
ATM1/0 5 0 44 PVC AAL5-SNAP 0 0 0 ACTIVE
ATM1/0 15 1 32 PVC AAL5-XTAGATM 0 0 0 ACTIVE
ATM1/0 17 1 34 TVC AAL5-XTAGATM 0 0 0 ACTIVE
ATM1/0 26 1 43 TVC AAL5-XTAGATM 0 0 0 ACTIVE
ATM1/0 28 1 45 TVC AAL5-XTAGATM 0 0 0 ACTIVE
ATM1/0 29 1 46 TVC AAL5-XTAGATM 0 0 0 ACTIVE
ATM1/0 33 1 50 TVC AAL5-XTAGATM 0 0 0 ACTIVE
When you specify a VCD value and the VCD corresponds to that of a private VC on a control interface, the display output appears
as follows:
Router# show atm vc 15
ATM1/0 33 1 50 TVC AAL5-XTAGATM 0 0 0 ACTIVE
ATM1/0: VCD: 15, VPI: 1, VCI: 32, etype:0x8, AAL5 - XTAGATM, Flags: 0xD38
PeakRate: 0, Average Rate: 0, Burst Cells: 0, VCmode: 0x0
XTagATM1, VCD: 1, VPI: 0, VCI: 32
OAM DISABLED, InARP DISABLED
InPkts: 38811, OutPkts: 38813, InBytes: 2911240, OutBytes: 2968834
InPRoc: 0, OutPRoc: 0, Broadcasts: 0
InFast: 0, OutFast: 0, InAS: 0, OutAS: 0
OAM F5 cells sent: 0, OAM cells received: 0
Status: ACTIVE
The table below describes the fields shown in the displays.
Table 10. show atm vc Field Descriptions
Field
|
Description
|
Interface
|
Interface slot and port.
|
VCD/Name
|
Virtual circuit descriptor (virtual circuit number). The connection name is displayed if the virtual circuit (VC) was configured
using the
pvc command and the name was specified.
|
VPI
|
Virtual path identifier.
|
VCI
|
Virtual channel identifier.
|
Type
|
Type of VC, either PVC, SVC, TVC, or multipoint SVC (MSVC).
Type of PVC detected from PVC discovery, either PVC-D, PVC-L, or PVC-M.
-
PVC-D indicates a PVC created due to PVC discovery.
-
PVC-L indicates that the corresponding peer of this PVC could not be found on the switch.
-
PVC-M indicates that some or all of the quality of service (QoS) parameters of this PVC do not match those of the corresponding
peer on the switch.
-
TVC indicates a Tag VC.
|
Encaps
|
Type of ATM adaptation layer (AAL) and encapsulation.
|
PeakRate
|
Kilobits per second sent at the peak rate.
|
Average Rate
|
Kilobits per second sent at the average rate.
|
Burst Cells
|
Value that equals the maximum number of ATM cells the VC can send at peak rate.
|
Status
|
Status of the VC connection.
-
UP indicates that the connection is enabled for data traffic.
-
DN indicates that the connection is down (not ready for data traffic). When the Status field is DN (down), a State field
is shown.
-
IN indicates that the interface is down (inactive).
-
ACTIVE indicates that the interface is in use and active.
|
etype
|
Encapsulation type.
|
Flags
|
Bit mask describing VC information. The flag values are summed to result in the displayed value.
0x10000 ABR VC 0x20000 CES VC 0x40000 TVC 0x100 TEMP (automatically created) 0x200 MULTIPOINT 0x400 DEFAULT_RATE 0x800 DEFAULT_BURST
0x10 ACTIVE 0x20 PVC 0x40 SVC 0x0 AAL5-SNAP 0x1 AAL5-NLPID 0x2 AAL5-FRNLPID 0x3 AAL5-MUX 0x4 AAL3/4-SMDS 0x5 QSAAL 0x6 AAL5-ILMI
0x7 AAL5-LANE 0x8 AAL5-XTAGATM 0x9 CES-AAL1 0xA F4-OAM
|
VCmode
|
AIP-specific or NPM-specific register describing the usage of the VC. This register contains values such as rate queue, peak
rate, and AAL mode, which are also displayed in other fields.
|
OAM frequency
|
Seconds between OAM loopback messages, or DISABLED if OAM is not in use on this VC.
|
InARP frequency
|
Minutes between Inverse Address Resolution Protocol (InARP) messages, or DISABLED if InARP is not in use on this VC.
|
virtual-access
|
Virtual access interface identifier.
|
virtual-template
|
Virtual template identifier.
|
InPkts
|
Total number of packets received on this VC. This number includes all fast-switched and process-switched packets.
|
OutPkts
|
Total number of packets sent on this VC. This number includes all fast-switched and process-switched packets.
|
InBytes
|
Total number of bytes received on this VC. This number includes all fast-switched and process-switched packets.
|
OutBytes
|
Total number of bytes sent on this VC. This number includes all fast-switched and process-switched packets.
|
InPRoc
|
Number of process-switched input packets.
|
OutPRoc
|
Number of process-switched output packets.
|
Broadcasts
|
Number of process-switched broadcast packets.
|
InFast
|
Number of fast-switched input packets.
|
OutFast
|
Number of fast-switched output packets.
|
InAS
|
Number of autonomous-switched or silicon-switched input packets.
|
VC TxRingLimit
|
Transmit Ring Limit for this VC.
|
VC Rx Limit
|
Receive Ring Limit for this VC.
|
Transmit priority
|
ATM service class transmit priority for this VC.
|
InCells
|
Number of incoming cells on this VC.
|
OutCells
|
Number of outgoing cells on this VC.
|
InPktDrops
|
A non-zero value for the InPktDrops of a VC counter suggests that the ATM interface is running out of packet buffers for
an individual VC, or is exceeding the total number of VC buffers that can be shared by the VCs.
|
OutPktDrops
|
The PA-A3 driver increments the OutPktDrops counter when a VC fills its individual transmit buffer quota. The purpose of
the quota is to prevent a consistently oversubscribed VC from grabbing all of the packet buffer resources and hindering other
VCs from transmitting normal traffic within their traffic contracts.
|
InCellDrops
|
Number of incoming cells dropped on this VC.
|
OutCellDrops
|
Number of outgoing cells dropped on this VC.
|
InByteDrops
|
Number of incoming bytes that are dropped on this VC.
|
OutByteDrops
|
Number of outgoing bytes that are dropped on this VC.
|
CrcErrors
|
Number of cyclic redundancy check (CRC) errors on this VC.
|
SarTimeOuts
|
Number of segmentation and reassembly sublayer time-outs on this VC.
|
OverSizedSDUs
|
Number of over-sized service data units on this VC
|
LengthViolation
|
Number of length violations on this VC. A length violation occurs when a reassembled packet is dropped without checking the
CRC.
|
CPIErrors
|
The Common Part Indicator error field is a one octet field in the AAL5 encapsulation of an ATM cell and must be set to 0.
If it is received with some other value, it is flagged as an error by the interface. For example, this error may indicate
data corruption.
|
Out CLP
|
Number of packets or cells where the Output Cell Loss Priority bit is set.
|
OutAS
|
Number of autonomous-switched or silicon-switched output packets.
|
OAM cells received
|
Number of OAM cells received on this VC.
|
OAM cells sent
|
Number of OAM cells sent on this VC.
|
TTL
|
Time to live in ATM hops across the VC.
|
VC owner
|
IP Multicast address of the group.
|