Cisco IOS Switching Services Command Reference, Release 12.3
Switching Commands: show controllers vsi control-interface through show ip cache verbose flow

Table Of Contents

show controllers vsi control-interface

show controllers vsi descriptor

show controllers vsi session

show controllers vsi status

show controllers vsi traffic

show controllers xtagatm

show interface stats

show interface xtagatm

show interfaces switching

show ip bgp labels

show ip bgp vpnv4

show ip cache

show ip cache flow

show ip cache flow aggregation

show ip cache verbose flow


show controllers vsi control-interface

To display information about an ATM interface configured with the tag-control-protocol vsi command to control an external switch (or if an interface is not specified, to display information about all Virtual Switch Interface [VSI] control interfaces), use the show controllers vsi control-interface command in user EXEC or privileged EXEC mode.

show controllers vsi control-interface [interface]

Syntax Description

interface

(Optional) Specifies the interface number.


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

12.0(5)T

This command was introduced.


Examples

The following is sample output from the show controllers vsi control-interface command:

Router# show controllers vsi control-interface

Interface:            ATM2/0        Connections:          14

The display shows the number of cross-connects currently on the switch that were established by the MPLS LSC through the VSI over the control interface.

Related Commands

Command
Description

tag-control-protocol vsi

Configures the use of VSI on a control port.


show controllers vsi descriptor

To display information about a switch interface discovered by the Multiprotocol Label Switching (MPLS) Label Switch Controller (LSC) through a Virtual Switch Interface (VSI), or if no descriptor is specified, about all such discovered interfaces, use the show controllers vsi descriptor command in user EXEC or privileged EXEC mode.

show controllers vsi descriptor [descriptor]

Syntax Description

descriptor

(Optional) Physical descriptor. For the Cisco BPX switch, the physical descriptor has the following form: slot.port.0


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

12.0(5)T

This command was introduced.


Usage Guidelines

Specify an interface by its (switch-supplied) physical descriptor.

Per-interface information includes the following:

Interface name

Physical descriptor

Interface status

Physical interface state (supplied by the switch)

Acceptable VPI and VCI ranges

Maximum cell rate

Available cell rate (forward/backward)

Available channels

Similar information is displayed when you enter the show controllers xtagatm privileged EXEC command. However, you must specify a Cisco IOS interface name instead of a physical descriptor.

Examples

The following is sample output from the show controllers vsi descriptor command:

Router# show controllers vsi descriptor 12.2.0

Phys desc: 12.2.0
Log intf:  0x000C0200 (0.12.2.0)
Interface: XTagATM0
IF status: up                   IFC state: ACTIVE 
Min VPI:   1                    Maximum cell rate:  10000 
Max VPI:   259                  Available channels: 2000 
Min VCI:   32                   Available cell rate (forward):  10000 
Max VCI:   65535                Available cell rate (backward): 10000 

Table 12 describes the significant fields in the display.

Table 12 show controllers vsi descriptor Field Descriptions 

Field
Description

Phys desc

Physical descriptor. A string learned from the switch that identifies the interface.

Log intf

Logical interface ID. This 32-bit entity, learned from the switch, uniquely identifies the interface.

Interface

The (Cisco IOS) interface name.

IF status

Overall interface status. Can be "up," "down," or "administratively down."

Min VPI

Minimum virtual path identifier. Indicates the low end of the VPI range configured on the switch.

Max VPI

Maximum virtual path identifier. Indicates the high end of the VPI range configured on the switch.

Min VCI

Minimum virtual path identifier. Indicates the high end of the VPI range configured on the switch.

Max VCI

Maximum virtual channel identifier. Indicates the high end of the VCI range configured on, or determined by, the switch.

IFC state

Operational state of the interface, according to the switch. Can be one of the following:

FAILED_EXT (that is, an external alarm)

FAILED_INT (indicates the inability of the MPLS LSC to communicate with the VSI slave controlling the interface, or another internal failure)

REMOVED (administratively removed from the switch)

Maximum cell rate

Maximum cell rate for the interface, which has been configured on the switch (in cells per second).

Available channels

Indicates the number of channels (endpoints) that are currently free to be used for cross-connects.

Available cell rate (forward)

Cell rate that is currently available in the forward (that is, ingress) direction for new cross-connects on the interface.

Available cell rate (backward)

Cell rate that is currently available in the backward (that is, egress) direction for new cross-connects on the interface.


Related Commands

Command
Description

show controllers xtagatm

Displays information about an extended MPLS ATM interface.


show controllers vsi session

To display information about all sessions with Virtual Switch Interface (VSI) slaves, use the show controllers vsi session command in user EXEC or privileged EXEC mode.

show controllers vsi session [session-number [interface interface]]


Note A session consists of an exchange of VSI messages between the VSI master (the LSC) and a VSI slave (an entity on the switch). There can be multiple VSI slaves for a switch. On the BPX, each port or trunk card assumes the role of a VSI slave.


Syntax Description

session-number

(Optional) Specifies the session number.

interface interface

(Optional) Specifies the VSI control interface.


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

12.0(5)T

This command was introduced.


Usage Guidelines

If a session number and an interface are specified, detailed information on the individual session is presented. If the session number is specified, but the interface is omitted, detailed information on all sessions with that number is presented. (Only one session can contain a given number, because multiple control interfaces are not supported.)

Examples

The following is sample output from the show controllers vsi session command:

Router# show controllers vsi session 

Interface    Session  VCD    VPI/VCI    Switch/Slave Ids   Session State
ATM0/0       0        1      0/40       0/1                ESTABLISHED   
ATM0/0       1        2      0/41       0/2                ESTABLISHED 
ATM0/0       2        3      0/42       0/3                DISCOVERY 
ATM0/0       3        4      0/43       0/4                RESYNC-STARTING  
ATM0/0       4        5      0/44       0/5                RESYNC-STOPPING  
ATM0/0       5        6      0/45       0/6                RESYNC-UNDERWAY 
ATM0/0       6        7      0/46       0/7                UNKNOWN 
ATM0/0       7        8      0/47       0/8                UNKNOWN 
ATM0/0       8        9      0/48       0/9                CLOSING 
ATM0/0       9        10     0/49       0/10               ESTABLISHED 
ATM0/0       10       11     0/50       0/11               ESTABLISHED 
ATM0/0       11       12     0/51       0/12               ESTABLISHED 

Table 13 describes the significant fields in the display.

Table 13 show controllers vsi session Field Descriptions 

Field
Description

Interface

Control interface name.

Session

Session number (from 0 to <n-1>), where n is the number of sessions on the control interface.

VCD

Virtual circuit descriptor (virtual circuit number). Identifies the VC carrying the VSI protocol between the master and the slave for this session.

VPI/VCI

Virtual path identifier or virtual channel identifier (for the VC used for this session).

Switch/Slave Ids

Switch and slave identifiers supplied by the switch.

Session State

Indicates the status of the session between the master and the slave.

ESTABLISHED is the fully operational steady state.

UNKNOWN indicates that the slave is not responding.

Other possible states include the following:

CONFIGURING

RESYNC_STARTING

RESYNC_UNDERWAY

RESYNC_ENDING

DISCOVERY

SHUTDOWN_STARTING

SHUTDOWN_ENDING

INACTIVE


In the following example, session number 9 is specified with the show controllers vsi session command:

Router# show controllers vsi session 9

Interface:            ATM1/0        Session number:       9
VCD:                  10            VPI/VCI:              0/49
Switch type:          BPX           Switch id:            0
Controller id:        1             Slave id:             10
Keepalive timer:      15            Powerup session id:   0x0000000A
Cfg/act retry timer:  8/8           Active session id:    0x0000000A
Max retries:          10            Ctrl port log intf:   0x000A0100
Trap window:          50            Max/actual cmd wndw:  21/21
Trap filter:          all           Max checksums:        19
Current VSI version:  1             Min/max VSI version:  1/1
Messages sent:        2502          Inter-slave timer:    4.000
Messages received:    2502          Messages outstanding: 0

Table 14 describes the significant fields in the display.

Table 14 show controllers vsi session Field Descriptions 

Field
Description

Interface

Name of the control interface on which this session is configured.

Session number

A number from 0 to <n-1>, where n is the number of slaves. Configured on the MPLS LSC with the slaves option of the tag-control-protocol vsi command.

VCD

Virtual circuit descriptor (virtual circuit number). Identifies the VC that carries VSI protocol messages for this session.

VPI/VCI

Virtual path identifier or virtual channel identifier for the VC used for this session.

Switch type

Switch device (for example, the BPX).

Switch id

Switch identifier (supplied by the switch).

Controller id

Controller identifier. Configured on the LSC, and on the switch, with the id option of the tag-control-protocol vsi command.

Slave id

Slave identifier (supplied by the switch).

Keepalive timer

VSI master keepalive timeout period (in seconds). Configured on the MPLS LSC through the keepalive option of the tag-control-protocol-vsi command. If no valid message is received by the MPLS LSC within this time period, it sends a keepalive message to the slave.

Powerup session id

Session ID (supplied by the slave) used at powerup time.

Cfg/act retry timer

Configured and actual message retry timeout period (in seconds). If no response is received for a command sent by the master within the actual retry timeout period, the message is resent. This applies to most message transmissions. The configured retry timeout value is specified through the retry option of the tag-control-protocol vsi command. The actual retry timeout value is the larger of the configured value and the minimum retry timeout value permitted by the switch.

Active session id

Session ID (supplied by the slave) for the currently active session.

Max retries

Maximum number of times that a particular command transmission will be retried by the master. That is, a message may be sent up to <max_retries+1> times. Configured on the MPLS LSC through the retry option of the tag-control-protocol vsi command.

Ctrl port log intf

Logical interface identifier for the control port, as supplied by the switch.

Trap window

Maximum number of outstanding trap messages permitted by the master. This is advertised, but not enforced, by the LSC.

Max/actual cmd wndw

Maximum command window is the maximum number of outstanding (that is, unacknowledged) commands that may be sent by the master before waiting for acknowledgments. This number is communicated to the master by the slave.

The command window is the maximum number of outstanding commands that are permitted by the master, before it waits for acknowledgments. This is always less than the maximum command window.

Trap filter

This is always "all" for the LSC, indicating that it wants to receive all traps from the slave. This is communicated to the slave by the master.

Max checksums

Maximum number of checksum blocks supported by the slave.

Current VSI version

VSI protocol version currently in use by the master for this session.

Min/max VSI version

Minimum and maximum VSI versions supported by the slave, as last reported by the slave. If both are zero, the slave has not yet responded to the master.

Messages sent

Number of commands sent to the slave.

Inter-slave timer

Timeout value associated by the slave for messages it sends to other slaves.

On a VSI-controlled switch with a distributed slave implementation (such as the BPX), VSI messages may be sent between slaves to complete their processing.

For the MPLS LSC VSI implementation to function properly, the value of its retry timer is forced to be at least two times the value of the interslave timer. (See "Cfg/act retry timer" in this table.)

Messages received

Number of responses and traps received by the master from the slave for this session.

Messages outstanding

Current number of outstanding messages (that is, commands sent by the master for which responses have not yet been received).


Related Commands

Command
Description

tag-control-protocol vsi

Configures the use of VSI on a control port.


show controllers vsi status

To display a one-line summary of each Virtual Switch Interface (VSI)-controlled interface, use the show controllers vsi status command in user EXEC or privileged EXEC mode.

show controllers vsi status

Syntax Description

This command has no arguments or keywords.

Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

12.0(5)T

This command was introduced.


Usage Guidelines

If an interface is discovered by the LSC, but no extended Multiprotocol Label Switching (MPLS) ATM interface is associated with it through the extended-port command, then the interface name is marked <unknown>, and interface status is marked n/a.

Examples

The following is sample output from the show controllers vsi status command:

Router# show controllers vsi status

Interface Name                  IF Status   IFC State  Physical Descriptor 
switch control port                   n/a      ACTIVE  12.1.0 
XTagATM0                               up      ACTIVE  12.2.0 
XTagATM1                               up      ACTIVE  12.3.0 
<unknown>                             n/a  FAILED-EXT  12.4.0 

Table 15 describes the significant fields in the display.

Table 15 show controllers vsi status Field Descriptions 

Field
Description

Interface Name

The (Cisco IOS) interface name.

IF Status

Overall interface status. Can be "up," "down," or "administratively down."

IFC State

The operational state of the interface, according to the switch. Can be one of the following:

FAILED_EXT (that is, an external alarm)

FAILED_INT (indicates the inability of the MPLS LSC to communicate with the VSI slave controlling the interface, or another internal failure)

REMOVED (administratively removed from the switch)

Physical Descriptor

A string learned from the switch that identifies the interface.


show controllers vsi traffic

To display traffic information about Virtual Switch Interface (VSI)-controlled interfaces, VSI sessions, or virtual circuits (VCs) on VSI-controlled interfaces, use the show controllers vsi traffic command in user EXEC or privileged EXEC mode.

show controllers vsi traffic {descriptor descriptor | session session-number | vc [descriptor descriptor [vpi vci]]}

Syntax Description

descriptor descriptor

Specifies the interface.

session session-number

Specifies a session number.

vpi

Virtual path identifier (0 to 4095).

vci

Virtual circuit identifier (0 to 65535).


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

12.0(5)T

This command was introduced.

12.2(4)T

The VPI range of values was extended to 4095.


Usage Guidelines

If none of the keywords is specified, traffic for all interfaces is displayed. You can specify a single interface by its (switch-supplied) physical descriptor. For the BPX switch, the physical descriptor has the form

slot.port. 0

If a session number is specified, the output displays VSI protocol traffic by message type. The VC traffic display is also displayed by the show xmplsatm vc cross-connect traffic descriptor command.

Examples

The following is sample output from the show controllers vsi traffic command:

Router# show controllers vsi traffic

Phys desc: 10.1.0
Interface: switch control port
IF status: n/a
Rx cells: 304250             Rx cells discarded: 0
Tx cells: 361186             Tx cells discarded: 0
Rx header errors: 4294967254 Rx invalid addresses (per card): 80360
Last invalid address: 0/53
Phys desc: 10.2.0
Interface: XTagATM0
IF status: up
Rx cells: 202637             Rx cells discarded: 0
Tx cells: 194979             Tx cells discarded: 0
Rx header errors: 4294967258 Rx invalid addresses (per card): 80385
Last invalid address: 0/32
Phys desc: 10.3.0
Interface: XTagATM1
IF status: up
Rx cells: 182295             Rx cells discarded: 0
Tx cells: 136369             Tx cells discarded: 0
Rx header errors: 4294967262 Rx invalid addresses (per card): 80372
Last invalid address: 0/32

Table 16 describes the significant fields shown in the display.

Table 16 show controllers vsi traffic Field Descriptions 

Field
Description

Phys desc

Physical descriptor of the interface.

Interface

The Cisco (IOS) interface name.

Rx cells

Number of cells received on the interface.

Tx cells

Number of cells transmitted on the interface.

Rx cells discarded

Number of cells received on the interface that were discarded due to traffic management.

Tx cells discarded

Number of cells that could not be transmitted on the interface due to traffic management and which were therefore discarded.

Rx header errors

Number of cells that were discarded due to ATM header errors.

Rx invalid addresses

Number of cells received with an invalid address (that is, an unexpected VPI/VCI combination). With the Cisco BPX switch, this count is of all such cells received on all interfaces in the port group of this interface.

Last invalid address

Number of cells received on this interface with ATM cell header errors.


The following sample output is displayed when you enter the show controllers vsi traffic session 9 command:

Router# show controllers vsi traffic session 9
                        Sent                                Received
Sw Get Cnfg Cmd:         3656       Sw Get Cnfg Rsp:         3656      
Sw Cnfg Trap Rsp:        0          Sw Cnfg Trap:            0         
Sw Set Cnfg Cmd:         1          Sw Set Cnfg Rsp:         1         
Sw Start Resync Cmd:     1          Sw Start Resync Rsp:     1         
Sw End Resync Cmd:       1          Sw End Resync Rsp:       1         
Ifc Getmore Cnfg Cmd:    1          Ifc Getmore Cnfg Rsp:    1         
Ifc Cnfg Trap Rsp:       4          Ifc Cnfg Trap:           4         
Ifc Get Stats Cmd:       8          Ifc Get Stats Rsp:       8         
Conn Cmt Cmd:            73         Conn Cmt Rsp:            73        
Conn Del Cmd:            50         Conn Del Rsp:            0         
Conn Get Stats Cmd:      0          Conn Get Stats Rsp:      0         
Conn Cnfg Trap Rsp:      0          Conn Cnfg Trap:          0         
Conn Bulk Clr Stats Cmd: 0          Conn Bulk Clr Stats Rsp: 0         
Gen Err Rsp:             0          Gen Err Rsp:             0         
unused:                  0          unused:                  0         
unknown:                 0          unknown:                 0         
TOTAL:                   3795       TOTAL:                   3795      

Table 17 describes the significant fields shown in the display.

Table 17 show controllers vsi traffic session Field Descriptions 

Field
Description

Sw Get Cnfg Cmd

Number of VSI "get switch configuration command" messages sent.

Sw Cnfg Trap Rsp

Number of VSI "switch configuration asynchronous trap response" messages sent.

Sw Set Cnfg Cmd

Number of VSI "set switch configuration command" messages sent.

Sw Start Resync Cmd

Number of VSI "set resynchronization start command" messages sent.

Sw End Resync Cmd

Number of VSI "set resynchronization end command" messages sent.

Ifc Getmore Cnfg Cmd

Number of VSI "get more interfaces configuration command" messages sent.

Ifc Cnfg Trap Rsp

Number of VSI "interface configuration asynchronous trap response" messages sent.

Ifc Get Stats Cmd

Number of VSI "get interface statistics command" messages sent.

Conn Cmt Cmd

Number of VSI "set connection committed command" messages sent.

Conn Del Cmd

Number of VSI "delete connection command" messages sent.

Conn Get Stats Cmd

Number of VSI "get connection statistics command" messages sent.

Conn Cnfg Trap Rsp

Number of VSI "connection configuration asynchronous trap response" messages sent.

Conn Bulk Clr Stats Cmd

Number of VSI "bulk clear connection statistics command" messages sent.

Gen Err Rsp

Number of VSI "generic error response" messages sent or received.

Sw Get Cnfg Rsp

Number of VSI "get connection configuration command response" messages received.

Sw Cnfg Trap

Number of VSI "switch configuration asynchronous trap" messages received.

Sw Set Cnfg Rsp

Number of VSI "set switch configuration response" messages received.

Sw Start Resync Rsp

Number of VSI "set resynchronization start response" messages received.

Sw End Resync Rsp

Number of VSI "set resynchronization end response" messages received.

Ifc Getmore Cnfg Rsp

Number of VSI "get more interfaces configuration response" messages received.

Ifc Cnfg Trap

Number of VSI "interface configuration asynchronous trap" messages received.

Ifc Get Stats Rsp

Number of VSI "get interface statistics response" messages received.

Conn Cmt Rsp

Number of VSI "set connection committed response" messages received.

Conn Del Rsp

Number of VSI "delete connection response" messages received.

Conn Get Stats Rsp

Number of VSI "get connection statistics response" messages received.

Conn Cnfg Trap

Number of VSI "connection configuration asynchronous trap" messages received.

Conn Bulk Clr Stats Rsp

Number of VSI "bulk clear connection statistics response" messages received.

unused, unknown

"Unused" messages are those whose function codes are recognized as being part of the VSI protocol, but which are not used by the MPLS LSC and, consequently, are not expected to be received or sent.

"Unknown" messages have function codes that the MPLS LSC does not recognize as part of the VSI protocol.

TOTAL

Total number of VSI messages sent or received.


show controllers xtagatm

To display information about an extended Multiprotocol Label Switching (MPLS) ATM interface controlled through the Virtual Switch Interface (VSI) protocol (or, if an interface is not specified, to display information about all extended MPLS ATM interfaces controlled through the VSI protocol), use the show controllers xtagatm command in user EXEC or privileged EXEC mode.

show controllers xtagatm if-number

Syntax Description

if-number

Specifies the interface number.


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

12.0(5)T

This command was introduced.


Usage Guidelines

Per-interface information includes the following:

Interface name

Physical descriptor

Interface status

Physical interface state (supplied by the switch)

Acceptable VPI and VCI ranges

Maximum cell rate

Available cell rate (forward/backward)

Available channels

Similar information appears if you enter the show controllers vsi descriptor command. However, you must specify an interface by its (switch-supplied) physical descriptor, instead of its Cisco IOS interface name. For the Cisco BPX switch, the physical descriptor has the form slot.port.0.

Examples

In this example, the sample output is from the show controllers xtagatm command specifying interface 0:

Router# show controllers xtagatm 0

Interface XTagATM0 is up 
Hardware is Tag-Controlled ATM Port (on BPX switch BPX-VSI1) 
Control interface ATM1/0 is up 
Physical descriptor is 10.2.0 
Logical interface 0x000A0200 (0.10.2.0) 
Oper state ACTIVE, admin state UP 
VPI range 1-255, VCI range 32-65535 
VPI is not translated at end of link 
Tag control VC need not be strictly in VPI/VCI range 
Available channels: ingress 30, egress 30 
Maximum cell rate: ingress 300000, egress 300000 
Available cell rate: ingress 300000, egress 300000 
Endpoints in use: ingress 7, egress 8, ingress/egress 1 
Rx cells 134747 
rx cells discarded 0, rx header errors 0 
rx invalid addresses (per card): 52994 
last invalid address 0/32 
Tx cells 132564 
tx cells discarded: 0

Table 18 describes the significant fields in the display.

Table 18 show controllers xtagatm Field Descriptions 

Field
Description

Interface XTagATM0 is up

Indicates the overall status of the interface. May be "up," "down," or "administratively down."

Hardware is Tag-Controlled ATM Port

Indicates the hardware type.

If the XTagATM was successfully associated with a switch port, a description of the form (on <switch_type> switch <name>) follows this field, where <switch_type> indicates the type of switch (for example, BPX), and the name is an identifying string learned from the switch.

If the XTagATM interface was not bound to a switch interface (with the extended-port interface configuration command), then the label "Not bound to a control interface and switch port" appears.

If the interface has been bound, but the target switch interface has not been discovered by the LSC, then the label "Bound to undiscovered switch port (id <number>)" appears, where <number> is the logical interface ID in hexadecimal notation.

Control interface ATM1/0 is up

Indicates that the XTagATM interface was bound (with the extended-port interface configuration command) to the VSI master whose control interface is ATM1/0 and that this control interface is up.

Physical descriptor is...

A string identifying the interface that was learned from the switch.

Logical interface

This 32-bit entity, learned from the switch, uniquely identifies the interface. It appears in both hexadecimal and dotted quad notation.

Oper state

Operational state of the interface, according to the switch. Can be one of the following:

ACTIVE

FAILED_EXT (that is, an external alarm)

FAILED_INT (indicates the inability of the MPLS LSC to communicate with the VSI slave controlling the interface, or another internal failure)

REMOVED (administratively removed from the switch)

admin state

Administrative state of the interface, according to the switch—either "Up" or "Down."

VPI range 1 to 255

Indicates the allowable VPI range for the interface that was configured on the switch.

VCI range 32 to 65535

Indicates the allowable VCI range for the interface that was configured on, or determined by, the switch.

LSC control VC need not be strictly in VPI or VCI range

Indicates that the label control VC does not need to be within the range specified by VPI range, but may be on VPI 0 instead.

Available channels

Indicates the number of channels (endpoints) that are currently free to be used for cross-connects.

Maximum cell rate

Maximum cell rate for the interface, which was configured on the switch.

Available cell rate

Cell rate that is currently available for new cross-connects on the interface.

Endpoints in use

Number of endpoints (channels) in use on the interface, broken down by anticipated traffic flow, as follows:

Ingress—Endpoints carry traffic into the switch

Egress—Endpoints carry traffic away from the switch

Ingress/egress—Endpoints carry traffic in both directions

Rx cells

Number of cells received on the interface.

rx cells discarded

Number of cells received on the interface that were discarded due to traffic management actions (rx header errors).

rx header errors

Number of cells received on the interface with cell header errors.

rx invalid addresses (per card)

Number of cells received with invalid addresses (that is, unexpected VPI or VCI.). On the BPX, this counter is maintained per port group (not per interface).

last invalid address

Address of the last cell received on the interface with an invalid address (for example, 0/32).

Tx cells

Number of cells sent from the interface.

tx cells discarded

Number of cells intended for transmission from the interface that were discarded due to traffic management actions.


Related Commands

Command
Description

show controllers vsi descriptor

Displays information about a switch interface discovered by the MPLS LSC through the VSI.


show interface stats

To display numbers of packets that were process switched, fast switched, and distributed switched, use the show interface stats command in user EXEC or privileged EXEC mode.

show interface type number stats

Syntax Description

type number

Interface type and number about which to display statistics.


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

11.0

This command was introduced.


Usage Guidelines

Use this command on the RP.


Note When fast switching is configured on the outbound interface, and RSP optimum, RSP flow, and VIP DFS switching modes are all specified on the incoming interface, the interface on which RSP optimum, RSP flow, and VIP DFS switching modes is not enabled can still show packets switched out via those switching paths when packets are received from other interfaces with RSP optimum, RSP flow, and VIP DES switching modes enabled.


Examples

The following is sample output from the show interface stats command:

Router# show interface fddi 3/0/0 stats 

Fddi3/0/0
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor    3459994 1770812197    4141096 1982257456
             Route cache   10372326 3693920448     439872  103743545
       Distributed cache   19257912 1286172104   86887377 1184358085
                   Total   33090232 2455937453   91468345 3270359086

Table 19 describes the significant fields in the display.

Table 19 show interface stats Field Descriptions 

Field
Description

Fddi3/0/0

Interface for which information is shown.

Switching path

Column heading for the various switching paths below it.

Pkts In

Number of packets received in each switching mechanism.

Chars In

Number of characters received in each switching mechanism.

Pkts Out

Number of packets sent out each switching mechanism.

Chars Out

Number of characters sent out each switching mechanism.


show interface xtagatm

To display information about an extended Multiprotocol Label Switching (MPLS) ATM interface, use the show interface xtagatm command in user EXEC or privileged EXEC mode.

show interface xtagatm if-number

Syntax Description

if-number

Specifies the MPLS ATM interface number.


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

12.0(5)T

This command was introduced.

12.3T

Sample command output was added for when an interface is down.


Usage Guidelines

Extended MPLS ATM interfaces are virtual interfaces that are created on first reference like tunnel interfaces. Extended MPLS ATM interfaces are similar to ATM interfaces except that the former only supports LC-ATM encapsulation.

Examples

The following is sample command output when an interface is down:

Router# show interface xt92


XTagATM92 is down, line protocol is down 
 Hardware is Tag-Controlled Switch Port
 Interface is unnumbered. Using address of Loopback1 (15.15.15.15)
 MTU 4470 bytes, BW 4240 Kbit, DLY 80 used,
 reliability 186/255, txload 1/255, rxload 1/255
 Encapsulation ATM, loopback not set
 Keepalive set (10 sec) [00:00:08/4] 
 Encapsulation(s): AAL5
 Control interface: not configured
 0 terminating VCs
 Switch port traffic:
  ? cells input, ? cells output
 Last input 00:00:10, output never, output hang never
 Last clearing of "show interface" counters never
 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
 Queueing strategy: fifo
 Output queue: 0/0 (size/max)
 Terminating traffic:
 5 minute input rate 0 bits/sec, 0 packets/sec
 5 minute output rate 0 bits/sec, 0 packets/sec
  138 packets input, 9193 bytes, 0 no buffer
  Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
  0 input errors, 0 CRC, 0 frame, 0 overrun, 0 i
  00:05:46: %SYS-5-CONFIG_I: Configured from console by consolegnored, 0 abort
  142 packets output, 19686 bytes, 0 underruns
  0 output errors, 0 collisions, 0 interface resets
  0 output buffer failures, 0 output buffers swapped out

The following is sample command output when an interface is up:

Router# show interface xt92

XTagATM92 is up, line protocol is up 
Hardware is Tag-Controlled Switch Port
Interface is unnumbered. Using address of Loopback1 (15.15.15.15)
MTU 4470 bytes, BW 4240 Kbit, DLY 80 used,
reliability 174/255, txload 1/255, rxload 1/255
Encapsulation ATM, loopback not set
Keepalive set (10 sec) 
Encapsulation(s): AAL5
Control interface: ATM3/0, switch port: bpx 9.2
3 terminating VCs, 7 switch cross-connects
Switch port traffic:
275 cells input, 273 cells output
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/0 (size/max)
Terminating traffic:
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
127 packets input, 8537 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
131 packets output, 18350 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out

Table 20 describes the significant fields shown in the displays.

Table 20 show interface xtagatm Field Descriptions 

Field
Description

XTagATM0 is up
XTagATM0 is down

Interface is currently active (up) or inactive (down).

line protocol is up
line protocol is down

Displays the line protocol as up or down.

Hardware is Tag-Controlled Switch Port

Specifies the hardware type.

Interface is unnumbered

Specifies that this is an unnumbered interface.

MTU

Maximum transmission unit of the extended MPLS ATM interface.

BW

Bandwidth of the interface (in kBps).

DLY

Delay of the interface in microseconds.

reliability

Reliability of the interface as a fraction of 255 (255/255 is 100% reliability), calculated as an exponential average over 5 minutes.

Encapsulation ATM

Encapsulation method.

loopback not set

Indicates that loopback is not set.

Keepalive set (10 sec) [00:00:08/4]

Indicates why the Xtag line is down. Valid values are:

1—Internal usage.

2—Administratively down.

3—Internal usage.

4—No extended port is configured.

5—Some cross-connects from an old session have been left operational.

6—No extended port or a wrong extended port was configured.

7—No control port was configured.

8—Internal usage.

9—Internal usage.

10—Internal usage.

11—Internal usage.

12—External port. The XTag is mapped to an invalid port on the switch.

13—External port. The XTag is mapped to a port that is down.

14—External port is mapped to the control panel on the switch.

15—OAM is being used to track the link state. The neighbor may be down or it is not responding to the OAM calls.

Encapsulation(s)

Identifies the ATM adaptation layer.

Control interface

Identifies the control port switch port with which the extended MPLS ATM interface has been associated through the extended-port interface configuration command.

n terminating VCs

Number of terminating VCs with an endpoint on this extended MPLS ATM interface. Packets are sent or received by the MPLS LSC on a terminating VC, or are forwarded between an LSC-controlled switch port and a router interface.

7 switch cross-connects

Number of switch cross-connects on the external switch with an endpoint on the switch port that corresponds to this interface. This includes cross-connects to terminating VCs that carry data to and from the LSC, and cross-connects that bypass the MPLS LSC and switch cells directly to other ports.

Switch port traffic

Number of cells received and sent on all cross-connects associated with this interface.

Terminating traffic

Indicates that counters below this line apply only to packets sent or received on terminating VCs.

5-minute input rate,
5-minute output rate

Average number of bits and packets sent per second in the last 5 minutes.

packets input

Total number of error-free packets received by the system.

bytes

Total number of bytes, including data and MAC encapsulation, in the error-free packets received by the system.

no buffer

Number of received packets discarded because there was no buffer space in the main system. Compare with ignored count. Broadcast storms on Ethernet systems and bursts of noise on serial lines are often responsible for no input buffer events.

broadcasts

Total number of broadcast or multicast packets received by the interface.

runts

Number of packets that are discarded because they are smaller than the medium's minimum packet size.

giants

Number of packets that are discarded because they exceed the medium's maximum packet size.

input errors

Total number of no buffer, runts, giants, CRCs, frame, overrun, ignored and abort counts. Other input-related errors can also increment the count, so that this sum may not balance with other counts.

CRC

Cyclic redundancy checksum generated by the originating LAN station or far-end device does not match the checksum calculated from the data received.

On a LAN, this usually indicates noise or transmission problems on the LAN interface or the LAN bus. A high number of CRCs is usually the result of traffic collisions or a station sending bad data.

On a serial link, CRCs usually indicate noise, gain hits, or other transmission problems on the data link.

frame

Number of packets received incorrectly having a CRC error and a noninteger number of octets.

overrun

Number of times the serial receiver hardware was unable to hand received data to a hardware buffer because the input rate exceeded the receiver's ability to handle the data.

ignored

Number of received packets ignored by the interface because the interface hardware ran low on internal buffers. These buffers are different from the system buffers mentioned previously in the buffer description. Broadcast storms and bursts of noise can cause the ignored count to be incremented.

abort

Illegal sequence of one bits on the interface. This usually indicates a clocking problem between the interface and the data-link equipment.

packets output

Total number of messages sent by the system.

bytes

Total number of bytes, including data and MAC encapsulation, sent by the system.

underruns

Number of times that the sender has been running faster than the router can handle data. This condition may never be reported on some interfaces.

output errors

Sum of all errors that prevented the final transmission of datagrams out of the interface being examined. Note that this may not balance with the sum of the enumerated output errors, because some datagrams may have more than one error, and others may have errors that do not fall into any of the specifically tabulated categories.

collisions

Number of messages re-sent due to an Ethernet collision. This is usually the result of an overextended LAN (Ethernet or transceiver cable too long, more than two repeaters between stations, or too many cascaded multiport transceivers). A packet that collides is counted only one time in output packets.

interface resets

Number of times an interface has been completely reset. Resets occur if packets queued for transmission were not sent within several seconds. On a serial line, this can be caused by a malfunctioning modem that is not supplying the transmit clock signal, or by a cable problem. If the system notices that the carrier detect line of a serial interface is up, but the line protocol is down, it periodically resets the interface in an effort to restart it. Interface resets can also occur when an interface is looped back or shut down.


Related Commands

Command
Description

interface xtagatm

Enters configuration mode for an extended MPLS ATM (XTagATM) interface.


show interfaces switching

To display the number of packets sent and received on an interface classified by the switching path, use the show interfaces switching command in user EXEC and privileged EXEC mode.

show interfaces [type number] switching

Syntax Description

type number

Interface type and number about which to display packet switching path information.


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

12.3

This command was introduced.


Usage Guidelines

Use the show interfaces switching command to show which path the router uses and how the traffic is switched. This command is also useful for troubleshooting CPU utilization.

Statistics for packets in, bytes in, packets out, and bytes out are displayed for the available protocols. The statistics are arranged by process, cache misses, fast-path and autonomous path. All values displayed by the show interfaces switching command are absolute. The clear interface counters command has no effect on these values.

You must enter at least seven characters of the switching keyword (switchi) when you use the show interfaces switching command.

Examples

The following shows sample output from the show interfaces switching command:

Router# show interface switching 

FastEthernet0/0 
          Throttle count          0
                   Drops         RP          0         SP          0
             SPD Flushes       Fast          0        SSE          0
             SPD Aggress       Fast          0
            SPD Priority     Inputs          0      Drops          0

    Protocol IP                  
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
                 Process         24       8208          0          0
            Cache misses          0          -          -          -
                    Fast          0          0          0          0
               Auton/SSE          0          0          0          0

    Protocol  DECnet              
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
                 Process          0          0          0          0
            Cache misses          0          -          -          -
                    Fast          0          0          0          0
               Auton/SSE          0          0          0          0
.........
........

    Protocol  IPv6                
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
                 Process          0          0          0          0
            Cache misses          0          -          -          -
                    Fast          0          0          0          0
               Auton/SSE          0          0          0          0

    Protocol  Other               
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
                 Process          2        120          3        180
            Cache misses          0          -          -          -
                    Fast          0          0          0          0
               Auton/SSE          0          0          0          0

    NOTE: all counts are cumulative and reset only after a reload.
Interface POS4/0 is disabled

The following shows sample output from the show interfaces switching command for the interface FastEthernet 0/0:

Router> show interfaces FastEthernet 0/0 switching

FastEthernet0/0 
          Throttle count          0
                   Drops         RP          0         SP          0
             SPD Flushes       Fast        218        SSE          0
             SPD Aggress       Fast          0
            SPD Priority     Inputs          0      Drops          0

    Protocol IP                  
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
                 Process        239      23422        237      23226
            Cache misses          0          -          -          -
                    Fast          0          0          0          0
               Auton/SSE          0          0          0          0

    Protocol  ARP              
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
                 Process          4        240          3        180
            Cache misses          0          -          -          -
                    Fast          0          0          0          0
               Auton/SSE          0          0          0          0

    Protocol  CDP
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
                 Process          8       2632         15       5477
            Cache misses          0          -          -          -
                    Fast          0          0          0          0
               Auton/SSE          0          0          0          0

    NOTE: all counts are cumulative and reset only after a reload.

Table 21 describes the significant fields shown in the display.

Table 21 show interfaces switching Field Descriptions 

Field
Description

Throttle count

Number of times input packet processing was throttled on this interface.

Drops

RP—Number of packets dropped for input congestion.
SP—Number of packets flushed by external throttling.

SPD Flushes

Fast—Number of packets flushed by selective packet discard on RP.
SSE—Number of packets flushed by external selective packet discard.

SPD Aggress

Fast—Input packets dropped by aggressive selective packet discard.

SPD Priority

Inputs—Number of priority packets received.
Drops—Number of priority packets dropped.

Protocol

Name of the protocol for which packet switching information is displayed.

Switching Path

Indicates the traffic switching path.

Pkts In

Number of incoming packets.

Char In

Number of incoming bytes.

Pkts Out

Number of outgoing packets.

Char Out

Number of outgoing bytes.

Process

Process switching. With this type of switching, an incoming packet is associated with a destination network or subnet entry in the routing table located in main memory. Process switching is a scheduled process that is performed by the system processor.

Cache misses

Packets that were forwarded through the process level (for which there was no entry in fast switching cache).

Fast

Fast switching. With this type of switching, an incoming packet matches an entry in the fast-switching cache located in main memory. Fast switching is done via asynchronous interrupts, which are handled in real time. Fast switching allows higher throughput by switching a packet using a cache created by previous packets.

Auton

Autonomous switching. With this type of switching, an incoming packet matches an entry in the autonomous-switching cache located on the interface processor. Autonomous switching provides faster packet switching by allowing the ciscoBus controller to switch packets independently without having to interrupt the system processor. It is available only on Cisco 7000 series routers and in AGS+ systems with high-speed network controller cards.

SSE

Silicon switching engine switching. With this type of switching, an incoming packet matches an entry in the silicon-switching cache located in the silicon switching engine (SSE) of the Silicon Switch Processor (SSP) module. This module is available only on Cisco 7000 series routers. Silicon switching provides very fast, dedicated packet switching by allowing the SSE to switch packets independently without having to interrupt the system processor.


Related Commands

Command
Description

show interface stats

Displays numbers of packets that were process switched, fast switched, and distributed switched.


show ip bgp labels

To display information about Multiprotocol Label Switching (MPLS) labels from the External Border Gateway Protocol (EBGP) route table, use the show ip bgp labels command in user EXEC or privileged EXEC mode.

show ip bgp labels

Syntax Description

This command has no arguments or keywords.

Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

12.0(21)ST

This command was introduced.

12.0(23)S

This command was integrated into Cisco IOS Release 12.0(23)S.

12.2(13)T

This command was integrated into Cisco IOS Release 12.2(13)T.


Usage Guidelines

Use this command to display EBGP labels associated with a carrier supporting carrier customer edge (CSC-CE) router.

This command displays labels for BGP routes in the default table only. To display labels in the VRF tables, use the show ip bgp vpnv4 {all | vrf vrf-name} command with the optional labels keyword.

Examples

The following example shows output for a CSC-CE router using BGP as a label distribution protocol:

Router# show ip bgp labels

Network          Next Hop         In Label/Out Label
3.3.0.0/16       0.0.0.0          imp-null/exp-null
15.15.15.15/32   15.15.15.15      18/exp-null
16.16.16.16/32   0.0.0.0          imp-null/exp-null
17.17.17.17/32   34.0.0.1         20/exp-null
18.18.18.18/32   43.0.0.1         24/31
18.18.18.18/32   38.0.0.1         24/33
19.19.19.19/32   43.0.0.1         25/32
19.19.19.19/32   38.0.0.1         25/34
20.20.20.20/32   43.0.0.1         21/30
20.20.20.20/32   38.0.0.1         21/32
33.0.0.0         15.15.15.15      19/exp-null
34.0.0.0         0.0.0.0          imp-null/exp-null
35.0.0.0         43.0.0.1         22/29
35.0.0.0         38.0.0.1         22/31
38.0.0.0         0.0.0.0          imp-null/exp-null
38.0.0.1/32      38.0.0.1         17/29
38.0.0.1/32      0.0.0.0          17/exp-null
40.0.0.0         38.0.0.1         26/35
40.0.0.0         43.0.0.1         26/34
42.0.0.0         43.0.0.1         23/28
42.0.0.0         38.0.0.1         23/30
43.0.0.0         0.0.0.0          imp-null/exp-null
43.0.0.1/32      0.0.0.0          16/exp-null

Table 22 describes the significant fields shown in the display.

Table 22 show ip bgp labels Field Descriptions 

Field
Description

Network

Displays the network address from the EGBP table.

Next Hop

Specifies the EBGP next hop address.

In Label

Displays the label (if any) assigned by this router.

Out Label

Displays the label assigned by the BGP next hop router.


Related Commands

Command
Description

show ip bgp vpnv4

Displays VPN address information from the BGP table.


show ip bgp vpnv4

To display Virtual Private Network (VPN) address information from the Border Gateway Protocol (BGP) table, use the show ip bgp vpnv4 command in user EXEC or privileged EXEC mode.

show ip bgp vpnv4 {all | rd route-distinguisher | vrf vrf-name} [rib-failure] [ip-prefix/length [longer-prefixes] [output-modifiers]] [network-address [mask] [longer-prefixes] [output-modifiers]] [cidr-only] [community] [community-list] [dampened-paths] [filter-list] [flap-statistics] [inconsistent-as] [neighbors] [paths [line]] [peer-group] [quote-regexp] [regexp] [summary] [labels]

Syntax Description

all

Displays the complete VPNv4 database.

rd route-distinguisher

Displays Network Layer Reachability Information (NLRI) prefixes that have a matching route distinguisher.

vrf vrf-name

Displays NLRI prefixes associated with the named VPN routing and forwarding instance (VRF).

rib-failure

(Optional) Displays BGP routes that failed to install in the VRF table.

ip-prefix/length

(Optional) The IP prefix address (in dotted decimal format) and the length of the mask (0 to 32). The slash mark must be included.

longer-prefixes

(Optional) Displays the entry, if any, that exactly matches the specified prefix parameter and all entries that match the prefix in a "longest-match" sense. That is, prefixes for which the specified prefix is an initial substring.

output-modifiers

(Optional) For a list of associated keywords and arguments, use context-sensitive help.

network-address

(Optional) The IP address of a network in the BGP routing table.

mask

(Optional) The mask of the network address, in dotted decimal format.

cidr-only

(Optional) Displays only routes that have nonnatural net masks.

community

(Optional) Displays routes matching this community.

community-list

(Optional) Displays routes matching this community list.

dampened-paths

(Optional) Displays paths suppressed on account of dampening (BGP route from peer is up and down).

filter-list

(Optional) Displays routes conforming to the filter list.

flap-statistics

(Optional) Displays flap statistics of routes.

inconsistent-as

(Optional) Displays only routes that have inconsistent autonomous systems of origin.

neighbors

(Optional) Displays details about TCP and BGP neighbor connections.

paths

(Optional) Displays path information.

line

(Optional) A regular expression to match the BGP autonomous system paths.

peer-group

(Optional) Displays information about peer groups.

quote-regexp

(Optional) Displays routes matching the autonomous system path regular expression.

regexp

(Optional) Displays routes matching the autonomous system path regular expression.

summary

(Optional) Displays BGP neighbor status.

labels

(Optional) Displays incoming and outgoing BGP labels for each NLRI prefix.


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

12.0(5)T

This command was introduced.

12.2(2)T

The output of the show ip bgp vpnv4 all ip-prefix command was enhanced to display attributes including multipaths and a best path to the specified network.

12.0(21)ST

The keyword tags was replaced with the keyword labels to conform to the MPLS IETF guidelines. This command was integrated into Cisco IOS Release 12.0(21)ST.

12.0(22)S

This command was integrated into Cisco IOS Release 12.0(22)S.

12.2(13)T

This command was integrated into Cisco IOS Release 12.2(13)T.

12.3

The keyword rib-failure was added for VRFs.


Usage Guidelines

Use this command to display VPNv4 information from the BGP database. The show ip bgp vpnv4 all command displays all available VPNv4 information. The show ip bgp vpnv4 summary command displays BGP neighbor status.

Examples

The following example shows output for all available VPNv4 information in a BGP routing table:

Router# show ip bgp vpnv4 all

BGP table version is 18, local router ID is 14.14.14.14
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal
Origin codes: i - IGP, e - EGP,? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
Route Distinguisher: 1:101 (default for vrf vpn1)
*>i6.6.6.6/32       223.0.0.21              11    100      0 ?
*> 7.7.7.7/32       150.150.0.2             11         32768 ?
*>i69.69.0.0/30     223.0.0.21               0    100      0 ?
*> 150.150.0.0/24   0.0.0.0                  0         32768 ?
*> 222.0.0.1/32     150.150.0.2             11         32768 ?
*>i222.0.0.3/32     223.0.0.21              11    100      0 ?
*> 222.0.0.10/32    0.0.0.0                  0         32768 ?
*>i222.0.0.30/32    223.0.0.21               0    100      0 ?

Table 23 describes the significant fields shown in the display.

Table 23 show ip bgp vpnv4 Field Descriptions 

Field
Description

Network

Displays the network address from the BGP table.

Next Hop

Displays the address of the BGP next hop.

Metric

Displays the BGP metric.

LocPrf

Displays the local preference.

Weight

Displays the BGP weight.

Path

Displays the BGP path per route.


The following example shows how to display a table of labels for NLRI prefixes that have a route distinguisher value of 100:1.

Router# show ip bgp vpnv4 rd 100:1 labels

Network            Next Hop       In label/Out label
Route Distinguisher: 100:1 (vrf1)
   2.0.0.0          10.20.0.60      34/nolabel
   10.0.0.0         10.20.0.60      35/nolabel
   12.0.0.0         10.20.0.60      26/nolabel
                    10.20.0.60      26/nolabel
   13.0.0.0         10.15.0.15      nolabel/26

Table 24 describes the significant fields shown in the display.

Table 24 show ip bgp vpnv4 rd labels Field Descriptions 

Field
Description

Network

Displays the network address from the BGP table.

Next Hop

Specifies the BGP next hop address.

In label

Displays the label (if any) assigned by this router.

Out label

Displays the label assigned by the BGP next hop router.


The following example shows VPNv4 routing entries for the VRF named vpn1:

Router# show ip bgp vpnv4 vrf vpn1

BGP table version is 18, local router ID is 14.14.14.14
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal
Origin codes: i - IGP, e - EGP,? - incomplete
Network          Next Hop            Metric LocPrf Weight Path
Route Distinguisher: 1:101 (default for vrf vpn1)
*>i6.6.6.6/32       223.0.0.21              11    100      0 ?
*> 7.7.7.7/32       150.150.0.2             11         32768 ?
*>i69.69.0.0/30     223.0.0.21               0    100      0 ?
*> 150.150.0.0/24   0.0.0.0                  0         32768 ?
*> 222.0.0.1/32     150.150.0.2             11         32768 ?
*>i222.0.0.3/32     223.0.0.21              11    100      0 ?

Table 25 describes the significant fields shown in the display.

Table 25 show ip bgp vpnv4 vrf Field Descriptions 

Field
Description

Network

Displays the network address from the BGP table.

Next Hop

Displays the address of the BGP next hop.

Metric

Displays the BGP metric.

LocPrf

Displays the local preference.

Weight

Displays the BGP weight.

Path

Displays the BGP path per route.


The following example shows attributes for network 10.22.22.0 that includes multipaths and a best path:

Router# show ip bgp vpnv4 all 10.22.22.0

BGP routing table entry for 100:1:10.22.22.0/24, version 50
Paths:(6 available, best #1)
Multipath:iBGP
  Advertised to non peer-group peers:
  200.1.12.12 
  22
    1.22.7.8 (metric 11) from 1.11.3.4 (100.0.0.8)
      Origin IGP, metric 0, localpref 100, valid, internal, multipath, best
      Extended Community:RT:100:1
      Originator:100.0.0.8, Cluster list:100.1.1.44
  22
    1.22.1.9 (metric 11) from 1.11.1.2 (100.0.0.9)
      Origin IGP, metric 0, localpref 100, valid, internal, multipath
      Extended Community:RT:100:1
      Originator:100.0.0.9, Cluster list:100.1.1.22
  22
    1.22.6.10 (metric 11) from 1.11.6.7 (100.0.0.10)
      Origin IGP, metric 0, localpref 100, valid, internal, multipath
      Extended Community:RT:100:1
      Originator:100.0.0.10, Cluster list:100.0.0.7
  22
    1.22.4.10 (metric 11) from 1.11.4.5 (100.0.0.10)
      Origin IGP, metric 0, localpref 100, valid, internal, multipath
      Extended Community:RT:100:1
      Originator:100.0.0.10, Cluster list:100.0.0.5
  22
    1.22.5.10 (metric 11) from 1.11.5.6 (100.0.0.10)
      Origin IGP, metric 0, localpref 100, valid, internal, multipath
      Extended Community:RT:100:1
      Originator:100.0.0.10, Cluster list:100.0.0.6

Table 26 describes the significant fields shown in the display.

Table 26 show ip bgp vpnv4 all 10.22.22.0 Field Descriptions 

Field
Description

BGP routing table ... version

Internal version number of the table. This number is incremented whenever the table changes.

Paths:

Number of autonomous system paths to the specified network. If multiple paths exist, one of the multipaths is designated the best path.

Multipath:

Indicates the maximum paths configured (iBGP or eBGP).

Advertised to non peer-group peers:
200.1.12.12

22

IP address of the BGP peers that the specified route is advertised to.

1.22.7.8 (metric 11) from 1.11.3.4 (100.0.0.8)

Indicates the next hop address and the address of the gateway that sent the update.

Origin

Indicates the origin of the entry. It can be one of the following values:
IGP—Entry originated from Interior Gateway Protocol (IGP) and was advertised with a network router configuration command.
incomplete—Entry originated from other than an IGP or Exterior Gateway Protocol (EGP) and was advertised with the redistribute router configuration command.

EGP—Entry originated from an EGP.

metric

If shown, the value of the interautonomous system metric.

localpref

Local preference value as set with the set local-preference route-map configuration command. The default value is 100.

valid

Indicates that the route is usable and has a valid set of attributes.

internal/external

The field is internal if the path is learned via iBGP. The field is external if the path is learned via eBGP.

multipath

One of multiple paths to the specified network.

best

If multiple paths exist, one of the multipaths is designated the best path and advertised the neighbors.

Extended Community:RT:100:1

Route Target value associated with the specified route.

Originator:

The router ID of the route originating router when route reflector is used.

Cluster list:

The router ID of all the route reflectors that the specified route has passed through.


The following example shows routes that BGP could not install in the VRF table:

Router# show ip bgp vpnv4 vrf foo rib-failure

Network            Next Hop                      RIB-failure   RIB-NH Matches
Route Distinguisher: 2:2 (default for vrf bar)
10.1.1.2/32        100.100.100.100     Higher admin distance               No
111.111.111.112/32 9.9.9.9             Higher admin distance              Yes

Table 27 describes the significant fields shown in the display.

Table 27 show ip bgp Field Descriptions 

Field
Description

Network

IP address of a network entity.

Next Hop

IP address of the next system that is used when forwarding a packet to the destination network. An entry of 0.0.0.0 indicates that the router has some non-BGP routes to this network.

RIB-failure

Cause of RIB failure. Higher admin distance means that a route with a better (lower) administrative distance such as a static route already exists in the IP routing table.

RIB-NH Matches

Route status that applies only when Higher admin distance appears in the RIB-failure column and bgp suppress-inactive is configured for the address family being used. There are three choices:

Yes—Means that the route in the RIB has the same nexthop as the BGP route or nexthop recurses down to the same adjacency as the BGP nexthop.

No—Means that the nexthop in the RIB recurses down differently from the nexthop of the BGP route.

n/a—Means that bgp suppress-inactive is not configured for the address family being used.


Related Commands

Command
Description

show ip bgp rib-failure

Displays BGP routes that failed to install in the RIB table.

show ip vrf

Displays the set of defined VRFs and associated interfaces.


show ip cache

To display the routing table cache used to fast switch IP traffic, use the show ip cache command in user EXEC or privileged EXEC mode.

show ip cache [prefix mask] [type number]

Syntax Description

prefix

(Optional) Displays only the entries in the cache that match the prefix and mask combination.

mask

(Optional) Displays only the entries in the cache that match the prefix and mask combination.

type

(Optional) Displays only the entries in the cache that match the interface type and number combination.

number

(Optional) Displays only the entries in the cache that match the interface type and number combination.


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

10.0

This command was introduced.


Usage Guidelines

The show ip cache display shows MAC headers up to 92 bytes.

Examples

The following is sample output from the show ip cache command:

Router# show ip cache

IP routing cache version 4490, 141 entries, 20772 bytes, 0 hash overflows
Minimum invalidation interval 2 seconds, maximum interval 5 seconds,
   quiet interval 3 seconds, threshold 0 requests
Invalidation rate 0 in last 7 seconds, 0 in last 3 seconds
Last full cache invalidation occurred 0:06:31 ago

Prefix/Length       Age       Interface       MAC Header
131.108.1.1/32      0:01:09   Ethernet0/0     AA000400013400000C0357430800
131.108.1.7/32      0:04:32   Ethernet0/0     00000C01281200000C0357430800
131.108.1.12/32     0:02:53   Ethernet0/0     00000C029FD000000C0357430800
131.108.2.13/32     0:06:22   Fddi2/0         00000C05A3E000000C035753AAAA0300
                                              00000800
131.108.2.160/32    0:06:12   Fddi2/0         00000C05A3E000000C035753AAAA0300
                                              00000800
131.108.3.0/24      0:00:21   Ethernet1/2     00000C026BC600000C03574D0800
131.108.4.0/24      0:02:00   Ethernet1/2     00000C026BC600000C03574D0800
131.108.5.0/24      0:00:00   Ethernet1/2     00000C04520800000C03574D0800
131.108.10.15/32    0:05:17   Ethernet0/2     00000C025FF500000C0357450800
131.108.11.7/32     0:04:08   Ethernet1/2     00000C010E3A00000C03574D0800
131.108.11.12/32    0:05:10   Ethernet0/0     00000C01281200000C0357430800
131.108.11.57/32    0:06:29   Ethernet0/0     00000C01281200000C0357430800

Table 28 describes the significant fields shown in the display.

Table 28 show ip cache Field Descriptions 

Field
Description

IP routing cache version

Version number of this table. This number is incremented any time the table is flushed.

entries

Number of valid entries.

bytes

Number of bytes of processor memory for valid entries.

hash overflows

Number of times autonomous switching cache overflowed.

Minimum invalidation interval

Minimum time delay between cache invalidation request and actual invalidation.

maximum interval

Maximum time delay between cache invalidation request and actual invalidation.

quiet interval

Length of time between cache flush requests before the cache will be flushed.

threshold <n> requests

Maximum number of requests that can occur while the cache is considered quiet.

Invalidation rate <n> in last <m> seconds

Number of cache invalidations during the last <m> seconds.

0 in last 3 seconds

Number of cache invalidation requests during the last quiet interval.

Last full cache invalidation occurred <hh:mm:ss> ago

Time since last full cache invalidation was performed.

Prefix/Length

Network reachability information for cache entry.

Age

Age of cache entry.

Interface

Output interface type and number.

MAC Header

Layer 2 encapsulation information for cache entry.


The following is sample output from the show ip cache command with a prefix and mask specified:

Router# show ip cache 131.108.5.0 255.255.255.0

IP routing cache version 4490, 119 entries, 17464 bytes, 0 hash overflows
Minimum invalidation interval 2 seconds, maximum interval 5 seconds,
   quiet interval 3 seconds, threshold 0 requests
Invalidation rate 0 in last second, 0 in last 3 seconds
Last full cache invalidation occurred 0:11:56 ago

Prefix/Length       Age       Interface       MAC Header
131.108.5.0/24      0:00:34   Ethernet1/2     00000C04520800000C03574D0800

The following is sample output from the show ip cache command with an interface specified:

Router# show ip cache e0/2

IP routing cache version 4490, 141 entries, 20772 bytes, 0 hash overflows
Minimum invalidation interval 2 seconds, maximum interval 5 seconds,
   quiet interval 3 seconds, threshold 0 requests
Invalidation rate 0 in last second, 0 in last 3 seconds
Last full cache invalidation occurred 0:06:31 ago

Prefix/Length       Age       Interface       MAC Header
131.108.10.15/32    0:05:17   Ethernet0/2     00000C025FF500000C0357450800

show ip cache flow

To display a summary of NetFlow statistics, use the show ip cache flow command in user EXEC or privileged EXEC mode.

show ip cache [prefix mask] [type number] flow

Syntax Description

prefix mask

(Optional) Displays only the entries in the cache that match the prefix and mask combination.

type number

(Optional) Displays only the entries in the cache that match the interface type and number combination.


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

11.1

This command was introduced.

11.1 CA

The information display for the command was updated.

12.3(4)T, 12.3(6), 12.2(20)S

The execute-on command was implemented on the Cisco 7500 platform to include the remote execution of the show ip cache flow command.


Usage Guidelines

Some of the content in the display of the show ip cache flow command uses multiline headings and multiline data fields. Figure 1 uses an example of the output from the show ip cache verbose flow to show how to associate the headings with the correct data fields when there are two or more lines of headings and two or more lines of data fields. The first line of the headings is associated with the first line of data fields. The second line of the headings is associated with the second line of data fields, and so on.

When other features such as IP Multicast are configured, the number of lines in the headings and data fields increases. The method for associating the headings with the correct data fields remains the same.

Figure 1 How to Use the Multiline Headings and Multiline Data Fields in the Display Output of the show ip cache verbose flow Command

Displaying Detailed NetFlow Cache Information on Platforms Running Distributed Cisco Express Forwarding

On platforms running Distributed Cisco Express Forwarding (dCEF), NetFlow cache information is maintained on each line card or Versatile Interface Processor. To display this information on a distributed platform by use of the show ip cache flow command, you must enter the command at a line card prompt.

Cisco 7500 Series Platform

To display NetFlow cache information using the show ip cache flow command on a Cisco 7500 series router that is running dCEF, enter the following sequence of commands:

Router# if-con slot-number
LC-slot-number# show ip cache [prefix mask] [type number] [verbose] flow 

For Cisco IOS Releases 12.3(4)T, 12.3(6), and 12.2(20)S and later, enter the following command to display NetFlow cache information:

Router# execute-on slot-number show ip cache [prefix mask] [type number] [verbose] flow 

Cisco 12000 Series Platform

To display NetFlow cache information using the show ip cache flow command on a Cisco 12000 Series Internet router, you enter the following sequence of commands:

Router# attach slot-number
LC-slot-number# show ip cache [prefix mask] [type number] [verbose] flow

For Cisco IOS Releases 12.3(4)T, 12.3(6), and 12.2(20)S and later, enter the following command to display NetFlow cache information:

Router# execute-on slot-number show ip cache [prefix mask] [type number] [verbose] flow 

Examples

The following is an sample display of a main cache using the show ip cache flow command:

Router# show ip cache flow 
IP packet size distribution (2381 total packets):
   1-32   64   96  128  160  192  224  256  288  320  352  384  416  448  480
   .092 .000 .003 .000 .141 .048 .000 .000 .000 .093 .000 .000 .000 .000 .000

    512  544  576 1024 1536 2048 2560 3072 3584 4096 4608
   .000 .000 .048 .189 .381 .000 .000 .000 .000 .000 .000

IP Flow Switching Cache, 278544 bytes
  22 active, 4074 inactive, 45 added
  2270 ager polls, 0 flow alloc failures
  Active flows timeout in 1 minutes
  Inactive flows timeout in 100 seconds
IP Sub Flow Cache, 25736 bytes
  23 active, 1001 inactive, 47 added, 45 added to flow
  0 alloc failures, 0 force free
  1 chunk, 1 chunk added
  last clearing of statistics never
Protocol         Total    Flows   Packets Bytes  Packets Active(Sec) Idle(Sec)
--------         Flows     /Sec     /Flow  /Pkt     /Sec     /Flow     /Flow
TCP-FTP              4      0.0        67   840      2.6      59.4       0.7
TCP-SMTP             1      0.0        67   168      0.6      59.4       0.5
TCP-BGP              1      0.0        68  1140      0.6      60.3       0.4
TCP-NNTP             1      0.0        68  1340      0.6      60.2       0.2
TCP-other            7      0.0        68   913      4.7      60.3       0.4
UDP-TFTP             1      0.0        68   156      0.6      60.2       0.1
UDP-other            4      0.0        36   151      1.4      45.6      14.7
ICMP                 4      0.0        67   529      2.7      60.0       0.2
Total:              23      0.2        62   710     14.3      57.5       2.9

SrcIf         SrcIPaddress    DstIf         DstIPaddress    Pr SrcP DstP  Pkts
Et2/0         192.168.137.78  Et3/0*        192.168.10.67   06 0041 0041    39 
Et2/0         172.19.216.196  Et3/0*        192.168.10.38   06 0077 0077    39 
Et0/0.1       10.56.78.128    Et1/0.1       172.16.30.231   06 00B3 00B3    48 
Et0/0.1       10.10.18.1      Et1/0.1       172.16.30.112   11 0043 0043    47 
Et0/0.1       10.162.37.71    Et1/0.1       172.16.30.218   06 027C 027C    48 
Et0/0.1       172.16.6.1      Null          224.0.0.9       11 0208 0208     1 
Et0/0.1       10.231.159.251  Et1/0.1       172.16.10.2     06 00DC 00DC    48 
Et2/0         10.234.53.1     Et3/0*        192.168.10.32   06 0016 0015    39 
Et2/0         10.210.211.213  Et3/0*        192.168.10.127  06 006E 006E    38 
Et0/0.1       10.234.53.1     Et1/0.1       172.16.30.222   01 0000 0000    47 
Et0/0.1       10.90.34.193    Et1/0.1       172.16.10.2     06 0016 0015    48 
Et0/0.1       10.10.10.2      Et1/0.1       172.16.10.2     06 0016 0015    48 
Et2/0         10.10.18.1      Et3/0*        192.168.10.162  11 0045 0045    39 
Et0/0.1       192.168.3.185   Et1/0.1       172.16.10.2     06 0089 0089    48 
Et0/0.1       10.10.11.1      Et1/0.1       172.16.30.51    06 0019 0019    49 
Et0/0.1       10.254.254.235  Et1/0.1       172.16.10.2     11 00A1 00A1    48 
Et2/0         192.168.23.2    Et3/0*        192.168.10.2    01 0000 0000    39 
Et0/0.1       10.251.10.1     Et1/0.1       172.16.10.2     01 0000 0800    47 
R3#


Table 29 describes the significant fields shown in the flow switching cache lines of the display.

  

Table 29 show ip cache flow Field Descriptions in Flow Switching Cache Display 

Field
Description

bytes

Number of bytes of memory used by the NetFlow cache.

active

Number of active flows in the NetFlow cache at the time this command was entered.

inactive

Number of flow buffers that are allocated in the NetFlow cache, but are not currently assigned to a specific flow at the time this command is entered.

added

Number of flows created since the start of the summary period.

ager polls

Number of times the NetFlow code looked at the cache to cause entries to expire (used by Cisco for diagnostics only).

flow alloc failures

Number of times the NetFlow code tried to allocate a flow but could not.

Exporting flows

IP address and User Datagram Protocol (UDP) port number of the workstation to which flows are exported.

flows exported in udp datagrams

Total number of flows exported and the total number of UDP datagrams used to export the flows to the workstation.

failed

Number of flows that could not be exported by the router because of output interface limitations.

last clearing of statistics

Standard time output (hh:mm:ss) since the clear ip flow stats privileged EXEC command was executed. This time output changes to hours and days after the time exceeds 24 hours.


   

Table 30 describes the significant fields shown in the activity by protocol lines of the display.

 

Table 30 show ip cache flow Field Descriptions in Activity By Protocol Display 

Field
Description

Protocol

IP protocol and the "well known" port number as described in RFC 1340.

Total Flows

Number of flows for this protocol since the last time statistics were cleared.

Flows/Sec

Average number of flows for this protocol seen per second; equal to total flows/number of seconds for this summary period.

Packets/Flow

Average number of packets observed for the flows seen for this protocol. Equal to total packets for this protocol or number of flows for this protocol for this summary period.

Bytes/Pkt

Average number of bytes observed for the packets seen for this protocol (total bytes for this protocol or the total number of packet for this protocol for this summary period).

Packets/Sec

Average number of packets for this protocol per second (total packets for this protocol) or the total number of seconds for this summary period.

Active(Sec)/Flow

Sum of all the seconds from the first packet to the last packet of an expired flow (for example, TCP FIN, timeout, and so on) in seconds or total flows for this protocol for this summary period.

Idle(Sec)/Flow

Sum of all the seconds from the last packet seen in each nonexpired flow for this protocol until the time at which this command was entered, in seconds or total flows for this protocol for this summary period.


 

Table 31 describes the significant fields in the NetFlow record lines of the displays:

Table 31 show ip cache flow Field Descriptions in NetFlow Record Display 

Field
Description

SrcIf

Interface on which the packet was received.

SrcIPaddress

IP address of the device which transmitted the packet.

DstIf

Interface from which the packet was transmitted.

DstIPaddress

IP address of the destination device.

Pr

IP protocol "well-known" port number as described in RFC 1340, displayed in hexadecimal format.

SrcP

IP port from which the packet is transmitted, displayed in hexadecimal format.

DstP

IP port where the packet is to be delivered, displayed in hexadecimal format.

Pkts

Number of packets switched through this flow.


Table 32 describes the significant fields in the NetFlow record lines of the display.

Table 32 show ip cache verbose flow Field Descriptions in NetFlow Record Display 

Field
Description

SrcIf

Interface on which the packet was received.

Port Msk AS

Source Border Gateway Protocol (BGP) autonomous system. This is always set to 0 in MPLS flows.

SrcIPaddress

IP address of the device which transmitted the packet.

DstIf

Interface from which the packet was transmitted.

Port Msk AS

Destination BGP autonomous system. This is always set to 0 in MPLS flows.

DstIPaddress

IP address of the destination device.

NextHop

Specifies the BGP next hop address. This is always set to 0 in MPLS flows.

Pr

IP protocol well-known port number as described in RFC 1340, displayed in hexadecimal format.

B/Pk

Average number of bytes observed for the packets seen for this protocol (total bytes for this protocol or the total number of flows for this protocol for this summary period).

Flgs

TCP flags (result of bitwise OR of TCP flags from all packets in the flow).

Active

The time in seconds that this flow has been active at the time this command was entered.

Pkts

Number of packets switched through this flow.


Related Commands

Command
Description

clear ip flow stats

Clears the NetFlow statistics.

ip route-cache

Controls the use of high-speed switching caches for IP routing.

tunnel flow egress-records

Creates a NetFlow record for packets that are encapsulated by the GRE tunnel.


show ip cache flow aggregation

To display the aggregation cache configuration, use the show ip cache flow aggregation command in user EXEC or privileged EXEC mode.

show ip cache [prefix mask] [type number] [verbose] flow aggregation {as | as-tos | bgp-nexthop-tos | destination-prefix | destination-prefix-tos | prefix | prefix-port | prefix-tos | protocol-port | protocol-port-tos | source-prefix | source-prefix-tos}

Syntax Description

prefix mask

(Optional) Displays only the entries in the cache that match the prefix and mask combination.

type number

(Optional) Displays only the entries in the cache that match the interface type and number combination.

verbose

(Optional) Displays additional information from the aggregation cache.

as

Displays the configuration of the autonomous system aggregation cache scheme.

as-tos

Displays the configuration of the autonomous system type of service (ToS) aggregation cache scheme.

bgp-nexthop-tos

Displays the BGP next hop and ToS aggregation cache scheme.

destination-prefix

Displays the configuration of the destination prefix aggregation cache scheme.

destination-prefix-tos

Displays the configuration of the destination prefix ToS aggregation cache scheme.

prefix

Displays the configuration of the prefix aggregation cache scheme.

prefix-port

Displays the configuration of the prefix port aggregation cache scheme.

prefix-tos

Displays the configuration of the prefix ToS aggregation cache scheme.

protocol-port

Displays the configuration of the protocol port aggregation cache scheme.

protocol-port-tos

Displays the configuration of the protocol port ToS aggregation cache scheme.

source-prefix

Displays the configuration of the source prefix aggregation cache scheme.

source-prefix-tos

Displays the configuration of the source prefix ToS aggregation cache scheme.


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

12.0(3)T

This command was introduced.

12.0(15)S

This command was modified to include new show output for ToS aggregation schemes.

12.2(4)S

This command was integrated into Cisco IOS Release 12.2(14)S.

12.3(1)

The bgp-nexthop-tos keyword was added.


Usage Guidelines

Some of the content in the display of the show ip cache flow aggregation command uses multiline headings and multiline data fields. Figure 2 uses an example of the output from the show ip cache verbose flow to show how to associate the headings with the correct data fields when there are two or more lines of headings and two or more lines of data fields. The first line of the headings is associated with the first line of data fields. The second line of the headings is associated with the second line of data fields, and so on.

When other features such as IP Multicast are configured, the number of lines in the headings and data fields increases. The method for associating the headings with the correct data fields remains the same.

Figure 2 How to Use the Multiline Headings and Multiline Data Fields in the Display Output of the show ip cache verbose flow Command

Examples

The following is a sample display of an autonomous system aggregation cache using the show ip cache flow aggregation as command:

Router# show ip cache flow aggregation as

IP Flow Switching Cache, 278544 bytes
  2 active, 4094 inactive, 13 added
  178 ager polls, 0 flow alloc failures

Src If       Src AS  Dst If       Dst AS  Flows   Pkts  B/Pk  Active
Fa1/0         0      Null          0         1      2     49    10.2
Fa1/0         0      Se2/0         20        1      5    100     0.0

The following is a sample display of an autonomous system aggregation cache for the prefix mask 10.0.0.1 255.0.0.0 using the show ip cache flow aggregation as command:

Router# show ip cache 10.0.0.1 255.0.0.0 flow aggregation as

IP Flow Switching Cache, 278544 bytes
  2 active, 4094 inactive, 13 added
  178 ager polls, 0 flow alloc failures

Src If        Src AS  Dst If         Dst AS     Flows    Pkts  B/Pk  Active
e1/2           0      Null            0            1     2       49    10.2
e1/2           0      e1/2           20            1     5      100     0.0

The following is a sample display of an autonomous system aggregation cache for 10.0.0.1 255.0.0.0 Ethernet1/2 using the show ip cache verbose flow aggregation as command:

Router# show ip cache 10.0.0.1 255.0.0.0 e1/2 verbose flow aggregation as

IP Flow Switching Cache, 278544 bytes
  2 active, 4094 inactive, 13 added
  178 ager polls, 0 flow alloc failures

Src If        Src AS  Dst If         Dst AS     Flows    Pkts  B/Pk  Active
e1/2           0      Null            0            1     2       49    10.2
e1/2           0      e1/2           20            1     5      100     0.0

The following is a sample display of an autonomous system ToS aggregation cache using the show ip cache verbose flow aggregation as-tos command:

Router# show ip cache verbose flow aggregation as-tos

IP Flow Switching Cache, 278544 bytes
  4 active, 4092 inactive, 103 added
  1609 ager polls, 0 flow alloc failures

Src If         Src AS  Dst If         Dst AS  TOS Flows   Pkts  B/Pk  Active
Et1/2           50     Fd4/0           40     CC     1   3568     28    17.8
Et1/2           0      Fd4/0           40     C0    15     17K    28    17.8
Et1/1           50     Fd4/0           40     55     1   3748     28    17.8
Fd4/0           0      Null            0      C0     1      2     49     0.9

The following is a sample display of a protocol port ToS aggregation cache using the show ip cache verbose flow aggregation protocol-port-tos command:

Router# show ip cache verbose flow aggregation protocol-port-tos

IP Flow Switching Cache, 278544 bytes
  4 active, 4092 inactive, 102 added
  1584 ager polls, 0 flow alloc failures

Prot Src If        SrcPort  Dst If        DstPort TOS Flows  Pkts  B/Pk  Active
0x01 Et1/2           0000   Fd4/0           0000  C0    15    17K    28    17.8
0x01 Et1/2           0000   Fd4/0           0000  CC     1  3568     28    17.8
0x01 Et1/1           0000   Fd4/0           0000  55     1  3748     28    17.8
0x06 Fd4/0           00B3   Null            2AF9  C0     1     2     49     0.9

The following is a sample display of a source prefix ToS aggregation cache using the show ip cache verbose flow aggregation source-prefix-tos command:

Router# show ip cache verbose flow aggregation source-prefix-tos

IP Flow Switching Cache, 278544 bytes
  4 active, 4092 inactive, 105 added
  1683 ager polls, 0 flow alloc failures

Src If         Src Prefix      Msk  AS    TOS Flows  Pkts B/Pk  Active
Et1/1          52.0.0.0        /8   50    55     1  3748    28    17.8
Et1/2          52.0.0.0        /8   50    CC     1  3568    28    17.8
Et1/2          0.0.0.0         /0   0     C0    15    17K   28    17.8
Fd4/0          20.20.20.1      /32  0     C0     1     2    49     0.9

The following is a sample display of a destination prefix ToS aggregation cache using the show ip cache verbose flow aggregation destination-prefix-tos command:

Router# show ip cache verbose flow aggregation destination-prefix-tos

IP Flow Switching Cache, 278544 bytes
  4 active, 4092 inactive, 86 added
  1480 ager polls, 0 flow alloc failures

Dst If         Dst Prefix      Msk  AS    TOS Flows  Pkts B/Pk  Active
Local          31.31.31.1      /32  0     C0     1     2    49     0.9
Fd4/0          42.0.0.0        /8   40    55     1  3748    28    17.8
Fd4/0          42.0.0.0        /8   40    CC     1  3568    28    17.8
Fd4/0          42.0.0.0        /8   40    C0    15    17K   28    17.8

The following is a sample display of a prefix ToS aggregation cache using the show ip cache verbose flow aggregation prefix-tos command:

Router# show ip cache verbose flow aggregation prefix-tos

IP Flow Switching Cache, 278544 bytes
  4 active, 4092 inactive, 4 added
  14 ager polls, 0 flow alloc failures

Src If         Src Prefix      Dst If         Dst Prefix      TOS Flows    Pkts
               Msk AS                         Msk AS              B/Pk   Active
Et1/2          0.0.0.0         Fd4/0          42.0.0.0        C0    15    3933 
               /0  0                          /8  40                28     3.9
Et1/1          52.0.0.0        Fd4/0          42.0.0.0        55     1     826 
               /8  50                         /8  40                28     3.9
Et1/2          52.0.0.0        Fd4/0          42.0.0.0        CC     1     787 
               /8  50                         /8  40                28     3.9

The following is a sample display of a prefix port aggregation cache using the show ip cache verbose flow aggregation prefix-port command:

Router# show ip cache verbose flow aggregation prefix-port

IP Flow Switching Cache, 278544 bytes
  4 active, 4092 inactive, 105 added
  1679 ager polls, 0 flow alloc failures

Src If         Src Prefix      Dst If         Dst Prefix      TOS Flows    Pkts
               Port Msk                       Port Msk        Pr  B/Pk   Active
Fd4/0          20.20.20.1      Local          31.31.31.1      C0     1       2 
               00B3 /32                       2AF9 /32        06    49     0.9
Et1/2          0.0.0.0         Fd4/0          42.0.0.0        C0    15      17K
               0000 /0                        0000 /8         01    28    17.8
Et1/1          52.0.0.0        Fd4/0          42.0.0.0        55     1    3748 
               0000 /8                        0000 /8         01    28    17.8
Et1/2          52.0.0.0        Fd4/0          42.0.0.0        CC     1    3568 
               0000 /8                        0000 /8         01    28    17.8

Table 33 describes the significant fields shown in these examples.

Table 33 show ip cache verbose flow aggregation Field Descriptions 

Field
Description

bytes

Number of bytes of memory used by the NetFlow cache.

active

Number of active flows in the NetFlow cache at the time this command was entered.

inactive

Number of flow buffers that are allocated in the NetFlow cache, but are not currently assigned to a specific flow at the time this command is entered.

added

Number of flows created since the start of the summary period.

ager polls

Number of times the NetFlow code looked at the cache to cause entries to expire (used by Cisco for diagnostics only).

flow alloc failures

Number of times the NetFlow code tried to allocate a flow but could not.

Src If

Specifies the source interface.

Src AS

Specifies the source autonomous system.

Dst If

Specifies the destination interface.

Dst AS

Specifies the destination autonomous system.

Flows

Number of flows.

Pkts

Number of packets.

B/Pk

Average number of bytes observed for the packets seen for this protocol (total bytes for this protocol or the total number of flows for this protocol for this summary period).

Active

The time in seconds that this flow has been active at the time this command was entered.


Related Commands

Command
Description

ip flow-aggregation cache

Enables aggregation cache configuration mode.


show ip cache verbose flow

To displays a detailed summary of the NetFlow accounting statistics, use the show ip cache verbose flow command in user EXEC or privileged EXEC mode.

show ip cache [prefix mask] [type number] verbose flow

Syntax Description

prefix mask

(Optional) Displays only the entries in the cache that match the prefix and mask combination.

type number

(Optional) Displays only the entries in the cache that match the interface type and number combination.


Command Modes

User EXEC
Privileged EXEC

Command History

Release
Modification

11.1

This command was introduced.

11.1 CA

The information display for the command was updated.

12.3(1)

The command output was updated to display additional NetFlow fields.

12.3(4)T, 12.3(6), 12.2(20)S

The execute-on command was implemented on the Cisco 7500 platforms to include the remote execution of the show ip cache verbose flow command.


Usage Guidelines

Some of the content in the display of the show ip cache verbose flow command uses multiline headings and multiline data fields. Figure 3 uses an example of the output from the show ip cache verbose flow to show how to associate the headings with the correct data fields when there are two or more lines of headings and two or more lines of data fields. The first line of the headings is associated with the first line of data fields. The second line of the headings is associated with the second line of data fields, and so on.

When other features such as IP Multicast are configured, the number of lines in the headings and data fields increases. The method for associating the headings with the correct data fields remains the same.

Figure 3 How to Use the Multiline Headings and Multiline Data Fields in the Display Output of the show ip cache verbose flow Command

Use the show ip cache verbose flow command to display flow record fields in the NetFlow cache in addition to the fields that are displayed with the show ip cache flow command. The values in the additional fields that are shown depend on the NetFlow features that are enabled and the flags that are set in the flow.


Note The flags, and therefore the fields, might vary from flow to flow.


When the NetFlow Multicast Support feature is enabled, this command displays the number of replicated packets and the packet byte count for NetFlow multicast accounting. When you configure the NetFlow Version 9 Export Format feature, this command displays additional NetFlow fields in the header.

Displaying Detailed NetFlow Cache Information on a Distributed Cisco 7500 Series Platform

To display detailed NetFlow cache information on a Cisco 7500 series router that is running distributed Cisco Express Forwarding (dCEF), enter the following sequence of commands:

Router# if-con slot-number
LC-slot-number# show ip cache verbose flow 

For Cisco IOS Releases 12.3(4)T, 12.3(6), and 12.2(20)S and later, enter the following command to display detailed NetFlow cache information:

Router# execute-on slot-number show ip cache verbose flow 

Displaying Detailed NetFlow Cache Information on a Distributed Cisco 12000 Series Platform

To display detailed NetFlow cache information on a Cisco 12000 series Internet router, you enter the following sequence of commands:

Router# attach slot-number
LC-slot-number# show ip cache verbose flow

For Cisco IOS Releases 12.3(4)T, 12.3(6), and 12.2(20)S and later, enter the following command to display detailed NetFlow cache information:

Router# execute-on slot-number show ip cache verbose flow 

Examples

The following example shows output from the show ip cache verbose flow command:

Router# show ip cache verbose flow

IP packet size distribution (6 total packets):
   1-32   64   96  128  160  192  224  256  288  320  352  384  416  448  480
   .000 .833 .166 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000


    512  544  576 1024 1536 2048 2560 3072 3584 4096 4608
   .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000

The output above shows the percentage distribution of packets by size. In this display, 83.3 percent of the packets fall in the 64-byte size range and 16.6 percent fall in the 96-byte range.

The next section of the output can be divided into three sections. The section and the table corresponding to each are as follows:

NetFlow cache statistics lines (Table 34)

Protocol statistics (Table 35)

NetFlow record display (Table 36)

IP Flow Switching Cache, 278544 bytes
  1 active, 4095 inactive, 2 added
  25 ager polls, 0 flow alloc failures
  Active flows timeout in 30 minutes
  Inactive flows timeout in 15 seconds
IP Sub Flow Cache, 17096 bytes
  1 active, 1023 inactive, 2 added, 2 added to flow
  0 alloc failures, 0 force free
  1 chunk, 1 chunk added
  last clearing of statistics never


Protocol         Total    Flows   Packets Bytes  Packets Active(Sec) Idle(Sec)
--------         Flows     /Sec     /Flow  /Pkt     /Sec     /Flow     /Flow
TCP-BGP              1      0.0         4    57      0.0       0.3      15.4
Total:               1      0.0         4    57      0.0       0.3      15.4


SrcIf          SrcIPaddress    DstIf          DstIPaddress    Pr TOS Flgs  Pkts
Port Msk AS                    Port Msk AS    NextHop              B/Pk  Active
BGP: BGP NextHop
Et0/0          3.3.3.3         Local          3.3.3.4         06 C0  18       2
2AF8 /24 0                     00B3 /24 0     0.0.0.0                49     0.2
BGP: 0.0.0.0

Table 34 describes the significant fields shown in the NetFlow cache lines of the display.

Table 34 show ip cache verbose flow Field Descriptions in the NetFlow Cache Display 

Field
Description

bytes

Number of bytes of memory used by the NetFlow cache.

active

Number of active flows in the NetFlow cache at the time this command was entered.

inactive

Number of flow buffers that are allocated in the NetFlow cache but that are not assigned to a specific flow at the time this command is entered.

added

Number of flows created since the start of the summary period.

ager polls

Number of times the NetFlow code caused entries to expire (used by Cisco for diagnostics only).

flow alloc failures

Number of times the NetFlow code tried to allocate a flow but could not.

last clearing of statistics

Standard time output (hh:mm:ss) since the clear ip flow stats privileged EXEC command was last executed. This time output changes to hours and days after the time exceeds 24 hours.


Table 35 describes the significant fields shown in the activity by protocol lines of the display.

Table 35 show ip cache verbose flow Field Descriptions in Activity By Protocol Display 

Field
Description

Protocol

IP protocol and the "well known" port number. (Refer to http://www.iana.org, Protocol Assignment Number Services for the latest RFC values.)

Note Only a small subset of all protocols is displayed.

Total Flows

Number of flows for this protocol since the last time statistics were cleared.

Flows/Sec

Average number of flows for this protocol per second; equal to total flows divided by the number of seconds for this summary period.

Packets/Flow

Average number of packets for the flows for this protocol; equal to total packets for this protocol divided by the number of flows for this protocol for this summary period.

Bytes/Pkt

Average number of bytes for the packets for this protocol (total bytes for this protocol divided by the total number of packets for this protocol for this summary period).

Packets/Sec

Average number of packets for this protocol per second (total packets for this protocol divided by the total number of seconds for this summary period).

Active(Sec)/Flow

Number of seconds from the first packet to the last packet of an expired flow (for example, TCP connection close request [FIN], timeout, and so on) divided by the total flows for this protocol for this summary period.

Idle(Sec)/Flow

Number of seconds observed from the last packet in each nonexpired flow for this protocol until the time at which this command was entered divided by the total flows for this protocol for this summary period.


Table 36 describes the significant fields in the NetFlow record lines of the display.

Table 36 show ip cache verbose flow Field Descriptions in NetFlow Record Display 

Field
Description

SrcIf

Interface on which the packet was received.

Port Msk AS

Source port number (displayed in hexadecimal format), IP address mask, and autonomous system number. This is always set to 0 in MPLS flows.

SrcIPaddress

IP address of the device which transmitted the packet.

DstIf

Interface from which the packet was transmitted.

Port Msk AS

Destination port number (displayed in hexadecimal format), IP address mask, and autonomous system. This is always set to 0 in MPLS flows.

DstIPaddress

IP address of the destination device.

NextHop

The BGP next hop address. This is always set to 0 in MPLS flows.

Pr

IP protocol "well-known" port number, displayed in hexadecimal format.

(Refer to http://www.iana.org, Protocol Assignment Number Services, for the latest RFC values.)

TOS

Type of Service, displayed in hexadecimal format.

B/Pk

Average number of bytes observed for the packets seen for this protocol.

Flgs

TCP flags, shown in hexadecimal format (result of bitwise OR of TCP flags from all packets in the flow).

Pkts

Number of packets in this flow.

Active

The time in seconds that this flow has been active at the time this command was entered.


The following example shows the NetFlow output of the show ip cache verbose cache flow command in which the sampler, class-id, and general flags are set. What is displayed for a flow depends on what flags are set in the flow. If the flow was captured by a sampler, the output shows the sampler ID. If the flow was marked by Modular QoS CLI (MQC), the display includes the class ID. If any general flags are set, the output includes the flags.


...
SrcIf          SrcIPaddress    DstIf          DstIPaddress    Pr TOS Flgs  Pkts
Port Msk AS                    Port Msk AS    NextHop              B/Pk  Active
BGP: BGP NextHop
Et1/0          8.8.8.8         Et0/0*         9.9.9.9         01 00  10       3 
0000 /8  302                   0800 /8  300   3.3.3.3               100     0.1
BGP: 2.2.2.2         Sampler: 1  Class: 1  FFlags: 01  

Table 37 describes the significant fields shown in the NetFlow output for a sampler, an MQC policy class, and for general flags.

Table 37 show ip cache verbose flow Field Descriptions for a NetFlow Sampler, an MCQ Policy Class, and for General Flags 

Field
Description

Sampler: 1

Shows the ID of the sampler that captured the flow. The sampler ID in this example is 1.

Class: 1

Shows the ID of the MQC traffic class. The class ID in this example is 1.

FFlag: 01

Shows the general flow flag (shown in hexadecimal format), which is the bitwise OR of one of more of the following:

01 = indicates an output (or egress) flow. (If this bit is not set, the flow is an input [or ingress] flow.)

02 = indicates a flow that was dropped (for example, by an access list [ACL]).

04 = indicates a Multiprotocol Label Switching (MPLS) flow.

08 = indicates an IP Version 6 (IPv6) flow.

The flow flag in this example is 01 (an egress flow).


The following example shows how to use the show ip cache verbose flow command to verify that NetFlow BGP next-hop accounting on a Cisco 7200 router is enabled:

Router# show ip cache verbose flow 

...
SrcIf          SrcIPaddress    DstIf          DstIPaddress    Pr TOS Flgs   Pkts 
Port Msk AS                    Port Msk AS    NextHop              B/Pk   Active 
MUL:M_Opaks  M_Obytes BGP:BGP_NextHop 
Et0/0/2        12.0.0.2        Et0/0/4        13.0.0.5        01 00  10      20 
0000 /8  0                     0800 /8  0     11.0.0.6              100     0.0 
BGP:26.0.0.6 
Et0/0/2        12.0.0.2        Et0/0/4        15.0.0.7        01 00  10      20 
0000 /8  0                     0800 /8  0     11.0.0.6              100     0.0 
BGP:26.0.0.6 
Et0/0/2        12.0.0.2        Et0/0/4        15.0.0.7        01 00  10      20 
0000 /8  0                     0000 /8  0     11.0.0.6              100     0.0 
BGP:26.0.0.6

Table 38 describes the significant fields shown in the NetFlow BGP next-hop accounting lines of the display.

Table 38 show ip cache verbose flow Field Descriptions in NetFlow Multicast Accounting Output

Field
Description

M_Opaks

Displays the number of IP multicast (IPM) output packets .

M_Obytes

Displays the number of IPM output bytes.

DstIPaddress

Displays the destination IP address for the IPM output packets.


The following example shows how the show ip cache verbose flow command can verify successful configuration of NetFlow multicast accounting:

Router# show ip cache verbose flow 

...
SrcIf          SrcIPaddress    DstIf          DstIPaddress    Pr TOS Flgs  Pkts 
Port Msk AS                    Port Msk AS    NextHop              B/Pk  Active 
IPM:OPkts    OBytes 
IPM:    0       0 
Et1/1/1        11.0.0.1        Null           227.1.1.1       01 55  10     100 
0000 /8  0                     0000 /0  0     0.0.0.0                28     0.0 
IPM:  100    2800 
Et1/1/1        11.0.0.1        Se2/1/1.16     227.1.1.1       01 55  10     100 
0000 /8  0                     0000 /0  0     0.0.0.0                28     0.0 
IPM:    0       0 
Et1/1/2        12.0.0.1        Et1/1/4        227.2.2.2       01 55  10     100 
0000 /8  0                     0000 /0  0     0.0.0.0                28     0.1 
Et1/1/2        12.0.0.1        Null           227.2.2.2       01 55  10     100 
0000 /8  0                     0000 /0  0     0.0.0.0                28     0.1 
IPM:  100    2800 

Table 39 describes the significant fields shown in the NetFlow multicast accounting lines of the display.

Table 39 show ip cache verbose flow Field Descriptions in NetFlow Multicasting Accounting Display

Field
Description

OPkts

Displays the number of IP multicast (IPM) output packets.

OBytes

Displays the number of IPM output bytes.

DstIPaddress

Displays the destination IP address for the IPM output packets.


Related Commands

Command
Description

ip route-cache flow

Enables NetFlow data collection on the interface.

show ip cache flow

Displays a summary of the NetFlow statistics.