Monitoring QoS

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Monitoring QoS
To monitor the elements and profiles that QoS supports, use the following commands.

show atm interface
show interfaces atm

Use to display ATM port queuing mode and QoS shaping mode status for a specific ATM interface. For a detailed description of all fields displayed by this command see JUNOSe Link Layer Configuration Guide.

Related field descriptions

qos-mode-port—Per-port queuing mode status: disabled, low-latency, low-cdv

qos-shaping-mode—QoS shaping mode: disabled, frame, cell, none

Example—This example shows a partial output that includes the qos-mode-port and qos-shaping-mode information
host1#show interfaces atm 2/0
ATM Interface 2/0 is up, line protocol is disabled
AAL5 operational status:       up
      time since last status change: 01:08:32
ATM operational status:        up
      time since last status change: 01:08:32
.
.
.
InPackets:        0
InBytes:          0
InCells:          0
OutPackets:       7803262
OutBytes:         7803262000
OutCells:         163868502
InErrors:         0
OutErrors:        0
InPacketDiscards: 0
InByteDiscards:   0
InCellErrors:     0
Administrative qos-shaping-mode: frame
Operational qos-shaping-mode: frame
Administrative qos-mode-port: none
Operational qos-mode-port: none
Operational qos-mode-port: nonequeue 0: traffic class control, bound to ATM2/0
  Queue length 0 bytes
  Forwarded packets 0, bytes 0
  Dropped committed packets 0, bytes 0
  Dropped conformed packets 0, bytes 0
  Dropped exceeded packets 0, bytes 0
show drop-profile

Use to display information about a drop profile.

Field descriptions

drop profile—Name of the drop profile

Average length exponent—Exponent used to weight the average queue length over time, controlling WRED responsiveness

committed threshold—Minimum and maximum committed queue thresholds and maximum drop probability

conformed threshold—Minimum and maximum conformed queue thresholds and maximum drop probability

exceeded threshold—Minimum and maximum exceeded queue thresholds and maximum drop probability
Example
host1#show drop-profile
                       committed          conformed          exceeded
                      threshold:         threshold:         threshold:
         Average         min,               min,               min,
 drop     length         max,               max,               max,
profile  exponent    max drop prob      max drop prob      max drop prob
-------  --------  -----------------  -----------------  -----------------
default         0  0, <none>, <none>  0, <none>, <none>  0, <none>, <none>
drop1          10  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
drop2          10  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
drop3          10  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
drop4          10  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
drop5           0  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
drop6          10  0, <none>, <none>  0, <none>, <none>  0, <none>, <none>
drop7          10  10%, 90%, 5%       0, <none>, <none>  0, <none>, <none>
drop8          10  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
drop9          10  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
drop10         10  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
drop11         10  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
drop12         10  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
drop13         10  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
drop14         10  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
drop15         10  0, 750000, 80%     0, <none>, <none>  0, <none>, <none>
show egress-queue events

Use to display information about egress queue forwarding and drop event counts. For information about configuring egress queue events, see Statistics Profiles.

Use the explicit keyword to display events for queues only on the specified interface and not stacked above the interface.

Use the summary keyword to display the sum of events for the queues bound to interfaces that are stacked above the specified interface.

Use the traffic-class keyword to display events for queues belonging to a specific traffic class.

Use the event-exceeding keyword together with the committed, conformed, exceeded, or forwarded keywords to filter output based on the number of events that exceed the specified value.

Field descriptions

interface—Name of the interface

traffic class—Name of the traffic class

forwarded events—Number of forwarded rate events

committed drop events—Number of committed drop events

conformed drop events—Number of conformed drop events

exceeded drop events—Number of exceeded drop events

rate period count—Time frame during which events are counted

Example
host1#show egress-queue events gigabitEthernet 1/0
                                            committed  conformed  exceeded     rate
                        traffic  forwarded     drop       drop       drop     period
      interface          class     events     events     events     events     count
----------------------  -------  ---------  ---------  ---------  ---------  ---------
ip GigabitEthernet1/0   tc1            132         0          0          0        132
                        tc2            132       132          0          0        132
                        tc3              6         0        132          0        132
                        tc4              0         0          0        132        132
show egress-queue rates

Use to display information about egress queue forwarding and drop rates. For information about configuring egress queue forwarding see Statistics Profiles.

This command is useful even if no statistics profiles are configured. Use the full keyword to display all of the configured queues, along with the minimum and maximum rates for the queues, even when statistics gathering has not been enabled.

Use the color keyword to display statistics by color rather than as an aggregate of all colors.

Use the previous and current keywords to display statistics for the previous or current rate period; previous is the default.

Use the full keyword to display statistics for all queues or the brief keyword to limit the display only to those queues that have rate statistics enabled; brief is the default.

Use the explicit keyword to display statistics for queues bound to the specified interface.

Use the summary keyword to display the sum of all rates of queues bound to interfaces that are stacked above the specified interface.

Use the traffic-class keyword to display rates for queues belonging to a specific traffic class.

Use the rate-exceeding keyword together with the aggregate, committed, conformed, exceeded, forwarded, minimum, or maximum keywords to filter output based on queues whose rates exceed the specified value.

Field descriptions

interface—Name of interface

traffic class—Name of the traffic class

forwarded rate—Forwarded rate statistics

aggregate drop rate—Total number of all drop rates

committed drop rate—Drop rate for green packets

conformed drop rate—Drop rate for yellow packets

exceeded drop rate—Drop rate for red packets

Queues reported—Number of queues reported

Queues filtered—Number of queues not reported because they are under the threshold

Queues disabled (no rate period)—Number of queues not displayed because statistics gathering is disabled (that is, the referenced statistics profile does not have a rate period set)

Queues disabled (no resources)—Number of queues not displayed because no resources were available

Total queues—Total number of queues within the hierarchical scope of the command

Example 1
host1#show egress-queue rates brief fastEthernet 9/0.2
                        traffic                forwarded aggregate minimum maximum
interface                class                   rate    drop rate  rate    rate
---------------------- ----------------------- --------- --------- ------- -------
ip FastEthernet9/0.2   best-effort                     0         0   25000 1000000
                       videoTrafficClass               0         0  375000 1000000
                       multicastTrafficClass           0         0  925000 1000000
                       internetTrafficClass            0         0   50000 1000000
   Total:                                              0         0
 
   Queues reported:                    4
   Queues filtered (under threshold):  0
   Queues disabled (no rate period):   0
   Queues disabled (no resources):     0
   Total queues:                       4
Example 2
host1#show egress-queue rates color gigabitEthernet 1/0 
                        traffic   forwarded      committed     conformed      exceeded
      interface          class      rate         drop rate     drop rate     drop rate
----------------------  -------  ------------  ------------  ------------  ------------
ip GigabitEthernet1/0   tc1         14645184             0             0             0
                        tc2         11950400       2706400             0             0
                        tc3          9960792             0       4707200             0
                        tc4          7967200             0             0       6705600
Queues reported:                    4
Queues filtered (under threshold):  0
Queues disabled (no rate period):   1
Queues disabled (no resources):     0
Total queues:                       5
Example 3
host1#show egress-queue rates full atm 11/0
                 traffic      forwarded  aggregate  minimum   maximum
 interface        class         rate     drop rate   rate      rate
--------------- ------------- ---------  ---------  --------  --------
ip ATM11/0.1    best-effort           *          *     24979  30000000
                tc1                   0          0  14987510  30000000
                tc2                   0          0   9991673  30000000
                tc3                   0          0   4995836  30000000
ip ATM11/0.2    best-effort           *          *     19980  20000000
                tc1                   0          0  11988011  20000000
                tc2                   0          0   7992007  20000000
    Queues reported:                    5
    Queues filtered (under threshold):  0
  * Queues disabled (no rate period):   2
  **Queues disabled (no resources):     0
    Total queues:                       7
show fabric-queue

Use to display forwarded and dropped statistics for the fabric.

If you do not specify one of the keywords (traffic-class, egress-slot, or detail), this command displays general data about the fabric queue.

Field descriptions

traffic class—Name of the traffic class for which statistics are being displayed

egress slot—Egress slot for which statistics are being displayed

type—Type of packet

forwarded packets—Number of forwarded packet

forwarded bytes—Number of forwarded bytes

dropped packets—Number of dropped packets

dropped bytes—Number of dropped bytes
Example
host1#show fabric-queue
  traffic     egress               forwarded   forwarded   dropped   dropped
   class       slot      type       packets      bytes     packets    bytes
-----------   ------   ---------   ---------   ---------   -------   -------
best-effort    all     committed       0           0          0         0
best-effort    all     conformed       0           0          0         0
best-effort    all     exceeded        0           0          0         0
show ip interface
Use to display QoS parameters on a particular interface.

A dynamic IP interface can have a QoS profile attached by RADIUS. For example, if configured by RADIUS, the show ip interface command might show the following:
  Attached QoS profile: Strict-qos
However, if the profile is configured statically, the QoS profile is attached to the ATM subinterface, and the attachment is displayed by the show atm subinterface command rather than show ip interface.

Related field descriptions

queue 0—Number of the queue for which statistics are being displayed and whether the queue is under traffic class control

traffic class—Name of traffic class

bound to—Interface to which queue is bound

Queue length—Size of queue in length and bytes

Forwarded—Number of forwarded packets and bytes

Dropped committed—Number of committed packets and bytes dropped

Dropped conformed—Number of conformed packets and bytes dropped

Dropped exceeded—Number of exceeded packets and bytes dropped

Dropped by WRED committed—Number of committed packets and bytes dropped by WRED

Dropped by WRED conformed—Number of conformed packets and bytes dropped by WRED

Dropped by WRED exceeded—Number of exceeded packets and bytes dropped by WRED

Average queue length—Average length of queue in bytes
Example
host1#show ip interface atm 2/0.1
ATM2/0.1 line protocol Atm1483 is up, ip is up
  Network Protocols: IP
  Internet address is 90.120.1.1/255.255.0.0
  Broadcast address is 255.255.255.255
  Operational MTU = 9180  Administrative MTU = 0
  Operational speed = 155520000  Administrative speed = 0
  Discontinuity Time = 722186
  Router advertisement = disabled
  Proxy Arp = disabled
  Administrative debounce-time = disabled
  Operational debounce-time    = disabled
  Access routing = disabled
  Multipath mode = hashed
  In Received Packets 2, Bytes 256
    Unicast Packets 2, Bytes 256
    Multicast Packets 0, Bytes 0
  In Policed Packets 0, Bytes 0
  In Error Packets 0
  In Invalid Source Address Packets 0
  In Discarded Packets 0
  Out Forwarded Packets 2, Bytes 256
    Unicast Packets 2, Bytes 256
    Multicast Routed Packets 0, Bytes 0
  Out Scheduler Dropped Packets 0, Bytes 0
  Out Policed Packets 0, Bytes 0
  Out Discarded Packets 0
  queue 0: traffic class best-effort, bound to ip ATM2/0.1
    Queue length 0 Bytes
    Forwarded packets 0, Bytes 0
    Dropped committed packets 0, Bytes 0
    Dropped conformed packets 0, Bytes 0
    Dropped exceeded packets 0, Bytes 0
    Dropped by WRED committed packets 0, bytes 0
    Dropped by WRED conformed packets 0, bytes 0
    Dropped by WRED exceeded packets 0, bytes 0
    Average queue length 150576 bytes
  queue 1: traffic class tc1, bound to ip ATM2/0.1
    Queue length 0 Bytes
    Forwarded packets 0, Bytes 0
    Dropped committed packets 0, Bytes 0
    Dropped conformed packets 0, Bytes 0
    Dropped exceeded packets 0, Bytes 0
    Dropped by WRED committed packets 0, bytes 0
    Dropped by WRED conformed packets 0, bytes 0
    Dropped by WRED exceeded packets 0, bytes 0
    Average queue length 150576 bytes
show qos interface-hierarchy

Use to display the QoS profiles in effect for and stacked above the specified interface. If there are no QoS profiles attached to the interface or above the interface, the router displays the QoS profile that is in effect down the interface stack toward the port interface.

Field descriptions

attachment@—Interface for which the hierarchy is being displayed

qos profile—Name of the QoS profile and its attachment point

t-class group—Traffic-class groups associated with the interface

interface type—Type of interface to which the profile is attached

rule type—Queue, node, or group

traffic class—Name of the traffic class associated with the queue

scheduler profile—Scheduler profiles associated with the interface

queue profile—Queue profiles associated with the interface
Example
host1#show qos interface-hierarchy atm 11/0.1
attachment@ atm-vc ATM11/0.1:
                t-class interface rule    traffic    scheduler    queue
  qos profile    group    type    type     class      profile    profile
--------------- ------- --------- ----- ----------- ------------ -------
qp2@ATM11/0.1           atm-vc    node              default      default
qp2@ATM11/0.1           atm-vp    node              default      default
qp2@ATM11/0.1           atm-vc    queue best-effort default      default
qp2@ATM11/0.1           atm-vc    queue tc5         default      default
qp2@ATM11/0.1           atm-vc    queue tc6         default      default
qp2@ATM11/0.1   g1      atm       group             strictShaper default
qp2@ATM11/0.1   g1      atm-vc    node              default      default
qp2@ATM11/0.1   g1      atm-vp    node              default      default
qp2@ATM11/0.1   g1      atm-vc    queue tc1         default      default
qp2@ATM11/0.1   g1      atm-vc    queue tc2         default      default
qp2@ATM11/0.1   g2      atm-vp    node              default      default
qp2@ATM11/0.1   g2      atm-vc    queue tc3         default      default
qp2@ATM11/0.1   g2      atm-vc    queue tc4         default      default
show qos-port-type-profile
Use to display information about QoS port-type profiles.

If you do not specify the profile name, data for all interface types is displayed.

The default format contains a list of all the qos-port-type-profile commands as they have been entered.

Example
host1#show qos-port-type-profile
default-port-profile Ethernet qos-profile ethernet-default
default-port-profile Atm qos-profile atm-default
default-port-profile HDLC qos-profile serial-default
default-port-profile ServerPort qos-profile server-default 
show qos-profile

Use to display information about QoS profiles.

If you do not specify the QoS profile name, data for all QoS profiles is displayed.

Use the brief keyword to display a reference count for QoS profiles. The reference count is the number of times the QoS profile is referenced by an interface or protocol profile.

Use the references keyword to display interface profiles that reference this profile.

This command displays groups, nodes, and queues, in that order, according to the following sequence:

not members of a traffic-class group

members of the strict-priority traffic-class group

members of an extended traffic-class group in the order of configuration

Field descriptions

qos-profile—Name of QoS profile

t-class group—Name of the traffic-class group associated with the interface

interface type—Type of interface

rule type—Whether the rule is a group node, scheduler node, or queue

traffic class—Name of the traffic class associated with the interface

scheduler profile—Name of the scheduler profile associated with the interface

queue profile—Name of the queue profile associated with the interface

drop profile—Name of the drop profile associated with the interface

statistics profile—Name of the statistics profile associated with the interface

qos-profile referenced by attachment—Number of interfaces to which the QoS profile is attached

attachment—Type of interface to which the QoS profile is attached

Example 1
host1#show qos-profile qpDiffServExample1
qos-profile qpDiffServExample1:
                     interface rule    traffic      scheduler     queue   drop   statistics
   t-class group       type    type     class        profile     profile profile  profile
-------------------- --------- ----- ----------- --------------- ------- ------- ----------
                     ip        queue tc3         best-effort     default default default
                     ip        queue tc4         best-effort     default default default
                     ip        queue tc5         best-effort     default default default
expedited-forwarding ethernet  group             expeditedGroup
expedited-forwarding ip        node              default
expedited-forwarding ip        queue voice       voice           default default default
best-effort          ethernet  group             bestEffortGroup
best-effort          ip        node              default
best-effort          ip        queue best-effort best-effort     default default default
assured-forwarding   ethernet  group             assuredGroup
assured-forwarding   ip        node              default
assured-forwarding   ip        queue video       video           default default default
Example 2
host1#show qos-profile brief 
qos-profile atm-default referenced by 1 attachment
qos-profile serial-default referenced by 1 attachment
qos-profile ethernet-default referenced by 1 attachment
qos-profile server-default referenced by 1 attachment 
Example 3
host1#show qos-profile references
    qos profile       attachment
--------------------  -----------------------------------
atm-default           atm (qos-port-type-profile)
serial-default        serial (qos-port-type-profile)
ethernet-default      ethernet (qos-port-type-profile)
server-default        server-port (qos-port-type-profile)     
show qos queue-thresholds

Use to display the color-based thresholds for queues on each egress slot.

Showing queue thresholds by queue profile shows buffer memory information for each queue profile and, within that profile, shows the thresholds for each region.

Field descriptions

queue-profile—Name of the queue profile

region—Egress buffer memory region

egress memory—Amount of memory in each region

exceeded length—Amount of exceeded traffic that can be queued at this egress memory usage

conformed length—Amount of conformed traffic that can be queued at this egress memory usage

committed length—Amount of committed traffic that can be queued at this egress memory usage

total committed memory—Amount of committed memory allocated to the queue
Example 1 shows the color-based queue thresholds for each of the 2000 video queues when 8000 total queues are configured. As shown, when all of the egress memory in use is between 0 MB and 4 MB, each video queue can queue 139,648 bytes of committed traffic. Because the default conformed fraction is 50 percent and the default exceeded fraction is 25 percent, half of the committed length, or 69,888 bytes, can be queued before conformed traffic is dropped, and one quarter of the committed length, or 34,944 bytes, can be queued before exceeded traffic is dropped. As memory fills, the video queues are given progressively smaller amounts of memory. For example, when 28 to 32 MB of buffer memory is in use, each video queue is limited to 3456 bytes. As memory fills beyond the last region, all frames are dropped except control traffic, until the queues are drained and memory usage falls back into one of the regions.

Example 1
host1#show qos queue-thresholds egress-slot 9 queue-profile video
queue-profile video 2000 queues
                                                       total
          egress     exceeded  conformed  committed  committed
region    memory      length    length     length     memory
------  -----------  --------  ---------  ---------  ---------
  0       0MB - 4MB     34944      69888     139648  279296000
  1       4MB - 8MB     24448      48896      97792  195584000
  2      8MB - 12MB     14080      28032      55936  111872000
  3     12MB - 16MB      7040      14080      28032   56064000
  4     16MB - 20MB      5248      10496      20992   41984000
  5     20MB - 24MB      1280       2560       5120   10240000
  6     24MB - 28MB      1152       2176       4224    8448000
  7     28MB - 32MB       896       1792       3456    6912000
Showing queue thresholds by region organizes the buffer memory information by queue region and, within each region, shows the buffer allocations for each queue profile.

Example 2 shows the router's memory management. Static and dynamic oversubscription determines that when 8,000 queues are configured and 0-4 MB of egress buffer memory is in use, memory is oversubscribed by 3330 percent. If significantly fewer queues are configured, there is less oversubscription. This example illustrates static oversubscription.

Because all of the queues in Example 2 use default queue profiles, all queues have the same lengths. Each queue is allocated 139,648 bytes of committed buffer memory when operating within this region. This allocation allows active queues to burst traffic by using memory that is unused by quiescent queues. This example illustrates dynamic oversubscription, which is based on the assumption that when a large number of queues is configured, only a fraction of the queues is active at a given time. As more queues become active, memory fills and spills into another region. When this occurs, queues are given progressively smaller queue limits.

Example 2
host1#show qos queue-thresholds egress-slot 9 region 0
region 0 (0MB - 4MB) oversubscription 3330%
                                                        total
               exceeded  conformed  committed  queue  committed
queue-profile   length    length     length    count   memory
-------------  --------  ---------  ---------  -----  ---------
default           34944      69888     139648   2000  279296000
video             34944      69888     139648   2000  279296000
multicast         34944      69888     139648   2000  279296000
internet          34944      69888     139648   2000  279296000
In memory regions 1 through 5, queue limits are progressively reduced. In region 6, memory is strictly partitioned among queues; oversubscription is 100 percent in Example 3.

Example 3
host1#show qos queue-thresholds egress-slot 9 region 6
region 6 (24MB - 28MB) oversubscription 100%
                                                        total
               exceeded  conformed  committed  queue  committed
queue-profile   length    length     length    count   memory
-------------  --------  ---------  ---------  -----  ---------
default            1152       2176       4224   2000    8448000
video              1152       2176       4224   2000    8448000
multicast          1152       2176       4224   2000    8448000
internet           1152       2176       4224   2000    8448000
When 24-28 MB of the memory is in use, there is no oversubscription of egress buffer memory; 32 MB of the 32-MB memory is allocated. In this example, each of the 8000 egress queues is given a queue of 4224 bytes, for a total of 16 MB.

If memory continues to fill into region 7, egress buffer memory is undersubscribed, allowing control traffic to flow within the router. As shown in Example 4, when operating in region 7, only 80 percent of the 32-MB memory is allocated.

Example 4
host1#show qos queue-thresholds egress-slot 9 region 7
region 7 (28MB - 32MB) oversubscription 80%
                                                        total
               exceeded  conformed  committed  queue  committed
queue-profile   length    length     length    count   memory
-------------  --------  ---------  ---------  -----  ---------
default             896       1792       3456   2000    6912000
video               896       1792       3456   2000    6912000
multicast           896       1792       3456   2000    6912000
internet            896       1792       3456   2000    6912000
Example 4 has 2000 IP users, each with four queues. Each of the four queues use default queue profiles.

In Example 5, the multicast queue profile is configured with a committed length of 10,000 minimum and 20,000 maximum. When in regions 0-4, these queues would normally get more memory than the 20,000 byte maximum requested. In this case, the queue is limited to the maximum, and any excess memory is redistributed to other queues.

Example 5
host1#show qos queue-thresholds egress-slot 9 queue-profile multicast
queue-profile multicast 2000 queues
                                                       total
          egress     exceeded  conformed  committed  committed
region    memory      length    length     length     memory
------  -----------  --------  ---------  ---------  ---------
  0       0MB - 4MB      5120      10112      20096   40192000
  1       4MB - 8MB      5120      10112      20096   40192000
  2      8MB - 12MB      5120      10112      20096   40192000
  3     12MB - 16MB      5120      10112      20096   40192000
  4     16MB - 20MB      5120      10112      20096   40192000
  5     20MB - 24MB      1280       2560      10112   20224000
  6     24MB - 28MB      1152       2176       4224    8448000
  7     28MB - 32MB       896       1792       3456    6912000
In region 5, there is not enough memory to honor the 20,000 byte maximum requested.

Although a 20,000 byte maximum was requested, the router provisions memory in 128 byte blocks, rounded up or down per each request; 20,096 bytes is 157 blocks of 128 bytes.

In region 6, memory is strictly partitioned, and neither the minimum nor maximum request is honored. Instead, each multicast queue is given a fair share of the queue length so that aggressive bandwidth consumers cannot starve out moderate traffic consumers.

In region 7, memory is underprovisioned to allow queues to drain and to avoid starvation that occurs when egress buffer memory fills completely.

You could configure video queues with a buffer weight of 16 and Internet and multicast queues with a buffer weight of 8 to ensure that video queues get to queue twice as much traffic as Internet and multicast queues. See Example 6.

Example 6
host1#show qos queue-thresholds egress-slot 9 region 0
region 0 (0MB - 4MB) oversubscription 3330%
                                                        total
               exceeded  conformed  committed  queue  committed
queue-profile   length    length     length    count   memory
-------------  --------  ---------  ---------  -----  ---------
default           33664      67328     134656   2000  269312000
video             67328     134656     269184   2000  538368000
multicast          5120      10112      20096   2000   40192000
internet          33664      67328     134656   2000  269312000
show qos shared-shaper

Use to display information about the configured shared shapers.

The best-effort queue is listed as the first resource for shared shapers that are queue controlled. The best-effort scheduler node is listed as the first resource for shared shapers that are node controlled.

Comnpound shared shpers

Field descriptions

interface—Type of interface

resource—Traffic resource associated with the logical interface

shared shaping rate—Configured shared shaping rate in bits per second

shaping rate—Individual shaping rate of a traffic resource

other—Actual current shaping rate in bits per second

Total shared shapers—Total number of shared shapers

Total constituents—Total number of resource constituents for all shared shapers

Total shared shaper failovers—Total number of shared shapers that are disabled (in failover mode) due to lack of resources

Compound shared shapers are [not] supported—Indication of whether compound shared shapers are supported; determined by installed hardware
Example
host1#show qos shared-shaper atm 11/0
                                              shared
                                              shaping shaping
    interface              resource            rate    rate      other
----------------- --------------------------- ------- ------- -----------
atm-vc ATM11/0.10 A atm-vc node                500000         rate 500000
                    atm-vc queue best-effort
                    atm-vc node  EF
                  A atm-vc queue EF voice              100000
                    atm-vc node  AF
                  A atm-vc queue AF video              200000
atm-vc ATM11/0.11 A atm-vc node                500000         rate 500000
                    atm-vc queue best-effort
                    atm-vc node  EF
                  A atm-vc queue EF voice              100000
                    atm-vc node  AF
                  A atm-vc queue AF video              200000
 Total shared shapers:          2
 Total constituents:            12
 Total shared shaper failovers: 0
 Compound shared shapers are not supported
show queue-profile

Use to display information about a queue profile.

If you do not specify the queue profile name, data for all queue profiles is displayed.

Use the brief keyword to display a reference count for queue profiles. The reference count is the number of times that a QoS profile references the queue profile.

Use the references keyword to display a list of QoS profiles that reference the queue profile.

Field descriptions

queue profile—Name of the queue profile

committed length—Greater queue length than the length of the conformed or exceeded length

conformed length—A queue length that is less than the committed length but greater than the exceeded length

exceeded length—A queue length less than the conformed length which is less than the committed length

conformed fraction—Percentage of the total queue that can be occupied before conformed packets are dropped

exceeded fraction—Percentage of the total queue that can be occupied before exceeded packets are dropped

buffer weight—Weight of the queue

Example 1

This is the default format.
host1#show queue-profile
                 committed   conformed   exceeded    fraction:
        queue    length:     length:     length:     conformed,   buffer
      profile   min, max    min, max    min, max    exceeded     weight
      -------   ---------   ---------   ---------   ----------  ------
      default   0, <none>   0, <none>   0, <none>   50, 25        8
Example 2
host1#show queue-profile brief
queue-profile default referenced 31 times in qos-profiles
Example 3
host1#show queue-profile references
queue-profile default
  Referenced by QoS profiles:
    atm-default
    serial-default
    ethernet-default
    server-default  
show scheduler-profile

Use to display information about a scheduler profile.

If you do not specify the scheduler profile name, data for all scheduler profiles is displayed.

Use the brief keyword to display a reference count for scheduler profiles. The reference count is the number of times that a QoS profile references the scheduler profile.

Use the references keyword to display a list of QoS profiles that reference the scheduler profile.

Field descriptions

scheduler—Name of the scheduler profile

shaping rate—Maximum bandwidth, in bits per second, provided to a node or queue

burst—Catch-up number associated with the shaper

weight—HRR weight of a node or queue

strict priority—Status of strict priority

assured rate—Desired bandwidth, in bits per second, provided to a node or queue, or the keyword, hierarchical, to indicate that HAR is used

Referenced by QoS profiles—QoS profiles that reference this scheduler profile
Example 1
host1#show scheduler-profile
            shaping                     strict    
scheduler    rate     burst   weight   priority   assured rate
---------   -------   -----   ------   --------   ------------
default     <none>    32767     8         no      <none>
wf100       128000    32767     20        no      75000
spSV25      5000000   32767     40        no      64000
videoHar    <none>    32767     8         no      hierarchical
Example 2
host1#show scheduler-profile brief
scheduler-profile default referenced 39 times in qos-profiles
scheduler-profile wf100 referenced 1 time in qos-profiles
scheduler-profile spSV25 referenced 2 times in qos-profiles
Example 3
host1#show scheduler-profile references
scheduler-profile default
  Referenced by QoS profiles:
    atm-default
    serial-default
    ethernet-default
    server-default
scheduler-profile wf100
  Referenced by QoS profiles:
    ipV610
scheduler-profile spSV25
  Referenced by QoS profiles:
    qospro25
show statistics-profile

Use to display information about a statistics profile.

If you do not specify a profile name, information for all statistics profiles is displayed.

Use the brief keyword to display a reference count for statistics profiles. The reference count is the number of times that a QoS profile references the statistics profile.

Use the references keyword to display a list of QoS profiles that reference the statistics profile.

Field descriptions

statistics profile—Name of the statistics profile

forwarding rate threshold—Threshold above which forwarded-rate-exceeded events are counted

committed drop threshold—Threshold above which committed-drop-events are counted

conformed drop threshold—Threshold above which conformed-drop-events are counted

exceeded drop threshold—Threshold above which exceeded-drop-events are counted

rate period—Time frame during which statistics are gathered
Example
host1#show statistics-profile
             forwarding   committed   conformed   exceeded
statistics      rate        drop        drop        drop       rate
 profile     threshold    threshold   threshold   threshold   period
----------   ----------   ---------   ---------   ---------   ------
default          <none>      <none>      <none>      <none>   <none>
statpro-1      10000000     2000000     4000000     6000000       30
show traffic-class

Use to display information about a traffic class.

If you do not specify the traffic-class name, data for all traffic classes is displayed.

Use the brief keyword to display a reference count for traffic classes. The reference count is the number of times that a QoS profile references the traffic class.

Use the references keyword to display a list of QoS profiles and traffic-class groups that reference the traffic class.

Field descriptions

traffic class—Name of the traffic class

fabric weight—Weight of the queue in the fabric

fabric strict priority—Setting strict-priority queues in the fabric

Referenced by QoS profiles—QoS profiles that reference this traffic class

Referenced by traffic class groups—Traffic-class groups that reference this traffic class
Example 1
host1>show traffic-class
                       fabric 
traffic       fabric   strict
class         weight   priority
-----------   ------   --------
best-effort     8         no
best-effort     8         no
tc1             8         no
tc2             8         no
tc3             8         no
tcs4            8        yes
tcs5            8        yes
Example 2
host1#show traffic-class brief
traffic-class best-effort referenced 17 times in qos-profiles
Example 3
host1#show traffic-class reference
traffic-class best-effort
  Referenced by QoS profiles:
    atm-default
    serial-default
    ethernet-default
    server-default
  Referenced by traffic class groups:
    None 
show traffic-class-group

Use to display the name of a traffic-class group and the classes in the group.

Use the brief keyword to display a reference count, the number of times the each traffic-class group is referenced by a profile.

Use the references keyword to display interface profiles that reference the configured traffic-class groups.

Field descriptions

traffic-class group—Name of the traffic-class group

traffic-class—Name of the traffic class

Referenced in qos-profiles—Number of times group is referenced by QoS profiles

Referenced by QoS profiles—QoS profiles that reference this traffic class
Examples
host1#show traffic-class-group
traffic-class-group assured-fwd
  traffic-class video
traffic-class-group assured-fwd slot 11
  traffic-class video
  traffic-class voice 
host1#show traffic-class-group brief
traffic-class-group g2 referenced 1 time in qos-profiles
traffic-class-group g3 referenced 1 time in qos-profiles
traffic-class-group g4 referenced 0 times in qos-profiles
traffic-class-group g1 referenced 0 times in qos-profiles
host1#show traffic-class-group references
traffic-class-group g2
  Referenced by QoS profiles:
   profile1
traffic-class-group g3
  Referenced by QoS profiles:
   None

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Monitoring QoS

show atm interface show interfaces atm

show drop-profile

show egress-queue events

show egress-queue rates

show fabric-queue

show ip interface

show qos interface-hierarchy

show qos-port-type-profile

show qos-profile

show qos queue-thresholds

show qos shared-shaper

show queue-profile

show scheduler-profile

show statistics-profile

show traffic-class

show traffic-class-group

show atm interface
show interfaces atm