Table 1612 show framerelay pvc Field Descriptions

Field

Description

DLCI

The data link connection identifier (DLCI) number for the PVC.

DLCI Usage

This lists Switched when the router or access server is used as a switch or Local when the router or access server is used as a Frame Relay DTE.

Active— PVC is configured and active in both the Frame Relay router (customer) and the Frame Relay switch (service provider).

Inactive— PVC is configured but not active (down), requiring troubleshooting.

Deleted— PVC at one time was configured and active but has now been removed from the configuration based on LMI status inquiries from the service provider.

Interface

The specific subinterface associated with this DLCI.

input pkts

The number of packets received on this PVC.

output pkts

The number of packets sent on this PVC.

in bytes

The number of bytes received on this PVC.

out bytes

The number of bytes sent on this PVC.

dropped pkts

The number of incoming and outgoing packets dropped by the router at the Frame Relay (OSI Layer 2) level.

in FECN pkts

The number of packets received with the FECN bit set.

in BECN pkts

The number of packets received with the BECN bit set.

out FECN pkts

The number of packets sent with the FECN bit set.

out BECN pkts

The number of packets sent with the BECN bit set.

in DE pkts

The number of DE packets received.

out DE pkts

The number of DE packets sent.

out bcast pkts

The number of output broadcast packets.

out bcast bytes

The number of output broadcast bytes.

pvc create time

The time the PVC was created.

last time pvc status changed

The time that the PVC changed status (active to inactive or inactive to active).

Service-type

The type of service performed by this PVC. Can be VoFR or VoFR-cisco.

configured voice bandwidth

The amount of bandwidth in bits per second reserved for voice traffic on this PVC.

used voice bandwidth

The amount of bandwidth in bits per second currently being used for voice traffic.

voice reserved queues

The queue numbers reserved for voice traffic on this PVC. (This field was removed in Cisco IOS Release 12.0(5)T).

fragment type

The type of fragmentation configured for this PVC. Possible types include the following: VoFR-cisco— Fragmented packets contain the Cisco proprietary header. VoFR— Fragmented packets contain the FRF.11 Annex C header. End-to-end— Fragmented packets contain the standard FRF. 12 header.

fragment size

The size of the fragment payload in bytes.

Cir

The current committed information rate (CIR), in bits per second.

Bc

The current committed burst size (BC), in bits.

Be

The current excess burst size (BE), in bits.

Limit

The maximum number of bytes transmitted per internal interval (excess plus sustained), where sustained is CIR and excess is burst.

Interval

The interval being used internally (might be smaller than the interval derived from BC/CIR; this situation occurs when the router determines that traffic flow will be more stable with a smaller configured interval).

Mincir

The minimum committed information rate (CIR) for the PVC.

byte increment

The number of bytes that will be sustained per internal interval.

BECN response

Frame Relay has BECN Adaptation configured.

Pkts

The number of packets associated with this PVC that have gone through the traffic-shaping system.

Bytes

The number of bytes associated with this PVC that have gone through the traffic-shaping system.

pkts delayed

The number of packets associated with this PVC that have been delayed by the traffic-shaping system.

bytes delayed

The number of bytes associated with this PVC that have been delayed by the traffic-shaping system.

Shaping

Traffic shaping will be active for all PVCs that are fragmenting data; otherwise, shaping will be active if the traffic being sent exceeds the CIR for this circuit.

shaping drops

The number of packets dropped by the traffic-shaping process.

Voice Queueing Stats

The statistics showing the size of packets, the maximum number of packets, and the number of packets dropped in the special voice queue created using the frame-relay voice bandwidth command queue keyword.

Discard

The maximum number of packets that can be stored in each packet queue. If

threshold

additional packets are received after a queue is full, they will be discarded.

Dynamic queue count

The number of packet queues reserved for best-effort traffic.

Reserved queue count

The number of packet queues reserved for voice traffic.

Output queue size

The size in bytes of each output queue.

max total

The maximum number of packets of all types that can be queued in all queues.

Drops

The number of frames dropped by all output queues.

NOTE

Although the Oxford English Dictionary spells "queuing" without the "e," Cisco IOS spells the same word as "queueing."

The following is sample output from the show frame-relay pvc command. It shows the PVC statistics for serial interface 3, slot 1, during a PPP session over Frame Relay:

Router# show frame-relay pvc 138

PVC Statistics for interface Serial 1/3 (Frame Relay DTE)

DLCI = 13 8, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial5/1.1

input pkts 9 out bytes 338

output pkts 16 dropped pkts 6 out FECN pkts 0 out DE pkts 0

in bytes 154 in FECN pkts 0 out BECN pkts 0

in BECN pkts 0 in DE pkts 0 out bcast pkts 0

out bcast bytes 0

pvc create time 00:35:11, last time pvc status changed 00:00:22

Shown here is a sample terminal output from the show frame-relay pvc command for a PVC carrying voice over Frame Relay (VoFr) configured via the vofr cisco command. The frame-relay voice bandwidth command has been configured here on the class associated with this PVC (vofr-class), as has fragmentation.

The VoFr fragmentation employed is Cisco proprietary.

A sample configuration for this scenario is shown here first, followed by the output for the show frame-relay pvc command:

interface serial 0

encapsulation frame-relay frame-relay traffic-shaping frame-relay interface-dlci 482 vofr cisco class vofr-class map-class frame-relay vofr-class

NOTE

frame-relay fragment 100 frame-relay fair-queue frame-relay cir 64000 frame-relay voice bandwidth 25000

Router# show frame-relay pvc 482

PVC Statistics for interface Serial0 (Frame Relay DTE)

DLCI = 482, DLCI USAGE = LOCAL, PVC STATUS = STATIC, INTERFACE =

Serial0

output pkts 1271 in bytes 95671

dropped pkts 0 in FECN pkts 0

out FECN pkts 0 out BECN pkts 0

out DE pkts 0 out bcast bytes 98604

last time pvc status changed 09:43:17

input pkts 1260

out bytes 98604

in BECN pkts 0

in DE pkts 0

out bcast pkts 1271

pvc create time 09:43:17

Service type VoFR-cisco configured voice bandwidth 25000, used voice bandwidth 0 voice reserved queues 24, 25

fragment type VoFR-cisco fragment size 100

cir 64000 bc 64000 be 0 limit 1000

mincir 32000 byte increment 1000 BECN response pkts 2592 bytes 205140 pkts delayed 1296

102570

shaping inactive shaping drops 0

interval 125 no bytes delayed

Current fair queue configuration: Discard Dynamic Reserved threshold queue count queue count 64 16 2

Output queue size 0/max total 600/drops 0

Note that the fragment type field in the show frame-relay pvc display can have the following entries:

VoFR-cisco

Indicates that fragmented packets will contain the Cisco proprietary header

VoFR

Indicates that fragmented packets will contain the FRF.11 Annex C header

end-to-end

Indicates that pure FRF.12 fragmentation is carried on this virtual circuit

Following is sample terminal output from the show frame-relay pvc command for an application that employs pure FRF.12 fragmentation. A sample configuration for this scenario is shown here first, followed by the output from the show frame-relay pvc command:

interface serial 0

encapsulation frame-relay frame-relay traffic-shaping frame-relay interface-dlci 249 class frag map-class frame-relay frag frame-relay fragment 100 frame-relay fair-queue frame-relay cir 64000

Router# show frame-relay pvc 24 9

PVC Statistics for interface SerialO (Frame Relay DTE)

DLCI = 249, DLCI USAGE = LOCAL, PVC STATUS = STATIC, INTERFACE =

SerialO

output pkts 243 in bytes 0

dropped pkts 0 in FECN pkts 0

out FECN pkts 0 out BECN pkts 0

out DE pkts 0 out bcast bytes 7290

last time pvc status changed 04:03:18 fragment size 100 be 0 limit 1000

byte increment 1000 BECN response bytes 14580 pkts delayed 243

input pkts 0 out bytes 72 90 in BECN pkts 0 in DE pkts 0 out bcast pkts 243 pvc create time 04:03:17, fragment type end-to-end cir 64000 bc 64000

mincir 32000 pkts 486

interval no bytes delayed

7290

shaping inactive shaping drops 0

Current fair queue configuration: Discard Dynamic Reserved threshold queue count queue count 64 16 2

Output queue size 0/max total 600/drops

When voice is not configured, voice bandwidth output is not displayed.

Shown next is sample terminal output from the show frame-relay pvc command for multipoint subinterfaces carrying data only. The output displays both the subinterface number and the DLCI. This display is the same whether the PVC is configured for static or dynamic addressing. Neither fragmentation nor voice is configured on this PVC.

This command will display DLCIs only; CIR information is available when a specified PVC is queried.

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