Cisco IOS XR Interface and Hardware Component Command Reference for the Cisco XR 12000 Series Router
Link Bundling Commands on the Cisco IOS XR Software
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Link Bundling Commands on the Cisco IOS XR Software

Link Bundling Commands on the Cisco IOS XR Software

This module provides command line interface (CLI) commands for configuring Link Bundle interfaces on the Cisco XR 12000 Series Router.

bundle-hash

To display the source and destination IP addresses for the member links, distributed by the load balancing feature, in a multilink interface bundle, use the bundle-hash command in EXEC mode.

bundle-hash { Bundle-Ether bundle-id | Bundle-POS bundle-id | members { GigabitEthernet | POS } interface-path-id }

Syntax Description

Bundle-Ether bundle-id

Specifies an Ethernet bundle for which you want to calculate load balancing. Range is 1- 65535.

Bundle-POS bundle-id

Specifies a POS bundle for which you want to calculate load balancing. Range is 1- 65535.

members

Identifies specific bundle member links for which you want to calculate load balancing.

GigabitEthernet

Specifies the Gigabit Ethernet interface for which you want to calculate load balancing.

POS

Specifies the POS interface for which you want to calculate load balancing.

interface-path-id

Physical interface or virtual interface.

Note   

Use the show interfaces command to see a list of all interfaces currently configured on the router.

For more information about the syntax for the router, use the question mark (?) online help function.

Command Default

No default behavior or values

Command Modes

EXEC

Command History

Release

Modification

Release 3.6.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Bundle interface traffic is distributed over the various member links of a bundle according to a hash function. The bundle-hash command allows you to determine which bundle member link will carry a particular flow of traffic.

You can use the bundle-hash command to get the following information:

  • Which members are used for a specified source/destination address pair,
  • such as 10.10.10.1 20.20.20.1
  • The destination IP address for a specified source IP address on a specified member.
  • The load balancing distribution–how many times the members of a bundle are used for a specified range of IP addresses.

Note


The bundle-hash command does not display all possible IP addresses in an entire series. It stops displaying addresses after all the addresses for all the members of the bundle have been displayed once.


The bundle-hash command invokes a utility that initially prompts you to select some options. Based on the options you select, the utility prompts you more options to select. The initial options to select are as follows:

  • L3/3-tuple
  • Single pair or Range
  • IPv4 or IPv6

The bundle-hash command utility prompts you for these options as follows:

  • Specify load-balance configuration (L3/3-tuple) (L3,L4):
  • Single SA/DA pair (IPv4,IPv6) or range (IPv4 only): S/R [S]:
  • Enter bundle type IP V4 (1) or IP V6 (2):
  • Enter source IP V4 address:
  • Enter destination IP V4 address:
  • Compute destination address set for all members? [y/n]:
  • Enter subnet prefix for destination address set:
  • Enter bundle IP V4 address [10.10.10.10]:

You may also be prompted to make further option choices depending on your selections.

You can use the show bundle command to get IP address information.

Table 1 provides a general summary of the options and the information you need to provide for each selected option. The actual information that you need to provide depends on the selections you make and may vary from the information provided in Table 1.



Table 1 bundle-hash Command Options

Option

Information You Need to Provide

L3/3-tuple

L3 information:

  • Source IP address
  • Destination IP address
  • Destination subnet prefix
  • Bundle IP address

Single pair

Information for a single source port and destination port. The utility uses this information to calculate the hash and display the bundle load-balance distribution among the user-provided physical/bundle links.

The default is single mode.

While in single mode, you may receive the following prompt:

Range

Information for sets of source and destination addresses to generate a packet flow for each set. The utility uses this information to calculate the hash for the generated packet flows and display the user-provided egress member links/bundle interfaces and the number of packet flows on each link.

IPv4

IPv4 addresses

		Compute destination address set for all members [y|n]:		
		

If you enter y(es), several sample IPv4 addresses in the destination subnet are generated, and the link is calculated for each sample address. During this calculation, the destination network address is derived from the destination IPv4 address and the subnet prefix.

Task ID

Task ID

Operations

bundle

read

Examples

Example 1

The following example shows the members keyword prompts and options:

RP/0/0/CPU0:router# bundle-hash members pos 0/2/0/1

Thu Aug 20 20:19:21.241 DST
Single SA/DA pair or range: S/R [S]: s
Enter source IP V4 address: 10.10.10.10
Enter source IP V4 address: 10.10.10.10
Enter destination IP V4 address: 20.20.20.20
Compute destination address set for all members? [y/n]: y
Enter subnet prefix for destination address set: 8
Enter bundle IP V4 address [10.10.10.10]: 10.10.10.11

Link hashed [hash:0] to is POS0/2/0/1 member id 0 ifh 0x3000f00

Destination address set for subnet 20.0.0.0:
  20.0.0.1 [hash:4] hashes to link POS0/2/0/1

Another? [y]: 
   

The following example shows how to calculate load balancing across the members of a link bundle (bundle-ether 2) using a single source and destination:

RP/0/0/CPU0:router# bundle-hash bundle-ether 2
Single SA/DA pair or range: S/R [S]: s
Enter source IP V4 address: 10.23.23.23
Enter destination IP V4 address: 10.12.12.12
Compute destination address set for all members? [y/n]: y
Enter subnet prefix for destination address set: 24
Enter bundle IP V4 address [10.23.23.23]: 10.1.1.2

Link hashed [hash:0] to is GigabitEthernet0/2/1/1 member id 0 ifh 0x3000b00

Destination address set for subnet 10.12.12.0:
  10.12.12.2 [hash:6] hashes to link GigabitEthernet0/2/1/1
  10.12.12.1 [hash:5] hashes to link GigabitEthernet0/2/1/0
   

The following example shows how to calculate load balancing across the members of a link bundle (bundle-ether 2) using a range of source and destinations:

RP/0/0/CPU0:router# bundle-hash bundle-ether 2

Single SA/DA pair or range: S/R [S]: r
Enter first source IP address: 10.1.1.1
Enter subnet prefix for source address set: 24
Enter number of source addresses (1-65536): 100
Enter source address modifier (1-167114) [1]: 1
Enter destination IP address: 10.4.4.4
Enter subnet prefix for destination address set: 24
Enter number of destination addresses (1-655): 10
Enter destination address modifier (1-1651404) [1]: 1
.
Total number of hits 1000
Member GigabitEthernet0/2/1/1 has 500 hits
Member GigabitEthernet0/2/1/0 has 500 hits
   

The following example shows how to calculate load balancing across specified members of a link bundle (bundle-ether 2) using a single source and destination:

RP/0/0/CPU0:router# bundle-hash members gigabitEthernet 0/2/1/1 gigabitEthernet 0/2/1/0
Single SA/DA pair or range: S/R [S]: s
Enter source IP V4 address: 10.1.1.1
Enter destination IP V4 address: 10.2.1.1
Compute destination address set for all members? [y/n]: y
Enter subnet prefix for destination address set: 16
Enter bundle IP V4 address [10.1.1.1]: 10.1.1.2

Link hashed [hash:6] to is GigabitEthernet0/2/1/1 member id 0 ifh 0x3000b00

Destination address set for subnet 10.2.1.0:
10.2.1.1 [hash:6] hashes to link GigabitEthernet0/2/1/1
10.2.1.2 [hash:5] hashes to link GigabitEthernet0/2/1/0
   

Related Commands

Command

Description

show bundle

Displays information about configured bundles.  

bundle id

To add a port to an aggregated interface (or bundle), enter the bundle id command in interface configuration mode.

bundle id bundle-id [ mode { active | on | passive } ]

no bundle id bundle-id

Syntax Description

bundle-id

Number of the bundle (from 1 to 65535) on which you want to add a port.

mode

(Optional) Specifies the mode of operation, as follows:

  • active—Use the mode active keywords to run Link Aggregation Control Protocol (LACP) in active mode over the port. When you specify active, the port joins the bundle and is activated if LACP determines that it is compatible.
  • on—Use the mode on keywords to configure an Etherchannel link over the port (no LACP running over the port).
  • passive—Use the mode passive keywords to run LACP in passive mode over the port. When you specify passive, LACP packets are sent only if the other end of the link is using active LACP. The link joins the bundle and is activated if LACP packets are exchanged and the port is compatible.

Command Default

The default setting is mode on.

Command Modes

Interface configuration

Command History

Release

Modification

Release 3.6.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

If you enter the bundle id command and specify a port that is already bound to a bundle, the port unbinds from the original bundle and becomes attached to the new bundle. If the bundle numbers are the same, then the port does not unbind, but the mode changes to mode you specified with the bundle id command.

Task ID

Task ID

Operations

bundle

read, write

Examples

The following example shows how to add a port onto a bundle:

RP/0/0/CPU0:router(config)# interface GigabitEthernet 0/1/5/0
RP/0/0/CPU0:router(config-if)# bundle id 1
  

The following example shows how to add an active LACP port onto an aggregated interface (or bundle):

RP/0/0/CPU0:router(config)# interface GigabitEthernet 0/6/5/7
RP/0/0/CPU0:router(config-if)# bundle id 5 mode active
   

Related Commands

Command

Description

show bundle

Displays information about configured bundles.  

show interfaces

Displays statistics for all interfaces configured on the router or for a specific node.  

show lacp bundle

Displays detailed information about LACP ports and their peers.  

show lacp port

 

bundle maximum-active links

To designate one active link and one link in standby mode that can take over immediately for a bundle if the active link fails, use the bundle maximum-active links command in interface configuration mode. To return to the default maximum active links value, use the no form of this command.

bundle maximum-active links links [hot-standby]

no bundle maximum-active links links

Syntax Description

links

Number of active links you want to bring up in the specified bundle, up to the maximum supported on the platform.

hot-standby

(Optional) Determines how a switchover between active and standby links is implemented. This option is available only on links with LACP enabled. By default, a switchover is implemented per an IEEE standard approach. If you optionally specify the hot-standby keyword, a switchover is implemented per a faster proprietary optimization.

Command Default

No default behavior or values

Command Modes

Interface configuration

Command History

Release

Modification

Release 3.6.0

This command was introduce.

Release 3.8.0

The hot-standby keyword was added.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.


Note


1:1 link protection is not supported.


By default, multiple links can actively carry traffic for a bundle. However, if one of the links fails, there is no dedicated standby link to take its place. The bundle maximum-active links command enables you to implement the optional 1:1 link protection, which means for the specified bundle, you designate one active link and one or more standby links that can take over immediately if the active link fails.

By setting the bundle maximum-active links command to 1, the highest-priority link within the bundle becomes active (distributing state) and the remaining links are in standby mode. If a standby link meets one of the following criteria, it is in the collecting state:

  • Running Link Aggregation Control Protocol (LACP), and the hot-standby option is implemented.
  • Not running LACP.

If a standby link does not meet either of these criteria, it is in the waiting state.

The second highest-priority link within the bundle becomes the standby link that takes over immediately if the active link fails. The priority is based on the value from the bundle port-priority command, where a lower value is a higher priority. Therefore, you must configure the highest priority (lowest value) for the link that you want to be active and the second-highest priority for the link that you want to act as a backup to the active link.


Note


We recommend designating only one backup link to the active link. Although you can designate an additional backup link, maintaining two backup links consumes more bandwidth and offsets any benefits that may be gained.



Note


If a link is not running LACP, the configuration of the bundle maximum-active links and bundle port-priority commands or equivalent commands must be the same on both ends of the link. If a link is running LACP, the configuration of the bundle maximum-active links command only must be the same on both ends of the link.


The hot-standby option of using an IEEE standard-based switchover (the default) or a faster proprietary optimized switchover is available only for active and standby links running LACP. For links not running LACP, the proprietary optimized switchover option is used.

When using one of the hot-standby options on a Cisco IOS XR device, the peer device must have a standby link configured and be one of the following:

  • Another Cisco IOS XR device using the same option.
  • Another device using an IEEE standard-based switchover. (Cisco does not recommend using this option because unexpected behavior, such as the peer sending traffic on the standby link, can occur.)

Task ID

Task ID

Operations

bundle

read, write

Examples

In the following example, the user implements 1:1 link protection for Ethernet bundle 5 and specifies that the proprietary optimization is used for the LACP-enabled active and standby links:

RP/0/0/CPU0:router(config)# interface bundle-ether 5
RP/0/0/CPU0:router(config-if)# bundle maximum-active links 1 hot-standby
  

The following example shows how to display information about Ethernet bundle 5:

RP/0/0/CPU0:router# show bundle bundle-ether 5

State: 0 - Port is Detached. 1 - Port is Waiting.
       2 - Port is Attached. 3 - Port is Collecting.
       4 - Port is Distributing.

Bundle-Ether 5
                                Minimum active     Maximum active
  B/W (Kbps)   MAC address      Links  B/W (Kbps)  Links
  ----------   --------------   -----  ----------  -----
10000000001d.e5eb.2898111
   
  Port           State  Port ID          B/W (Kbps)  MAC address
  ------------   -----  --------------   ----------  ---------------
  Te0/1/0/1      4      0x8000, 0x0001     10000000  0000.abab.0001
  Te0/1/0/0      3      0x8000, 0x0002     10000000  0000.abab.0000 
   

In the show bundle bundle-ether 5 command output, the state of the active link is 4, which indicates that the port is distributing. The state of the standby link is 3, which indicates that the port is collecting.

In the following example, the user implements 1:1 link protection for Ethernet bundle 5 and does not specify the hot-standby keyword, because the user wants to use the default IEEE standard-based switchover on the LACP-enabled active and standby links:

RP/0/0/CPU0:router(config)# interface bundle-ether 5
RP/0/0/CPU0:router(config-if)# bundle maximum-active links 1
   

The following example shows how to display information about Ethernet bundle 5:

RP/0/0/CPU0:router# show bundle bundle-ether 5

State: 0 - Port is Detached. 1 - Port is Waiting.
       2 - Port is Attached. 3 - Port is Collecting.
       4 - Port is Distributing.

Bundle-Ether 5
                                Minimum active     Maximum active
  B/W (Kbps)   MAC address      Links  B/W (Kbps)  Links
  ----------   --------------   -----  ----------  -----
10000000001d.e5eb.2898111

  Port           State  Port ID          B/W (Kbps)  MAC address
  ------------   -----  --------------   ----------  ---------------
  Te0/1/0/1      4      0x8000, 0x0001     10000000  0000.abab.0001
  Te0/1/0/0      10x8000, 0x0002     10000000  0000.abab.0000 
   

In the show bundle bundle-ether 5 command output, the state of the active link is 4, which indicates that the port is distributing. The state of the standby link is 1, which indicates that the port is waiting.

In the following example, the user implements 1:1 link protection for Ethernet bundle 5 and does not specify the hot-standby keyword, because the LACP-disabled link automatically uses the proprietary optimized switchover:

RP/0/0/CPU0:router(config)# interface bundle-ether 5
RP/0/0/CPU0:router(config-if)#bundle maximum-active links 1
   

The following example shows how to display information about Ethernet bundle 5:

RP/0/0/CPU0:router# show bundle bundle-ether 5

State: 0 - Port is Detached. 1 - Port is Waiting.
       2 - Port is Attached. 3 - Port is Collecting.
       4 - Port is Distributing.

Bundle-Ether 5
                                Minimum active     Maximum active
  B/W (Kbps)   MAC address      Links  B/W (Kbps)  Links
  ----------   --------------   -----  ----------  -----
10000000001d.e5eb.2898111

  Port           State  Port ID          B/W (Kbps)  MAC address
  ------------   -----  --------------   ----------  ---------------
  Te0/1/0/1      4      0x8000, 0x0001     10000000  0000.abab.0001
  Te0/1/0/0      3      0x8000, 0x0002     10000000  0000.abab.0000 
   

In the show bundle bundle-ether 5 command output, the state of the active link is 4, which indicates that the port is distributing. The state of the standby link is 3, which indicates that the port is collecting.

Related Commands

Command

Description

bundle minimum-active links

Sets the number of active links required to bring up a specific bundle.  

show bundle

Displays information about configured bundles.  

show lacp bundle

Displays detailed information about LACP ports and their peers.  

bundle minimum-active bandwidth

To set the minimum amount of bandwidth required before a user can bring up a specific bundle, use the bundle minimum-active bandwidth command in interface configuration mode.

bundle minimum-active bandwidth kbps

Syntax Description

kbps

Minimum bandwidth required before you can bring up a bundle. Range is from 1 through a number that varies depending on the platform and the bundle type.

Command Default

kbps: 1

Command Modes

Interface configuration

Command History

Release

Modification

Release 3.6.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Task ID

Task ID

Operations

bundle

read, write

Examples

The following example shows how to set the minimum amount of bandwidth required before a user can bring up a specific bundle. In this example, the user sets the minimum amount of bandwidth required to bring up Ethernet bundle 1 to 620000:

RP/0/0/CPU0:router(config)# interface Bundle-Ether 1
RP/0/0/CPU0:router(config-if)# bundle minimum-active bandwidth 620000
   

Related Commands

Command

Description

show bundle

Displays information about configured bundles.  

bundle minimum-active links

To set the number of active links required to bring up a specific bundle, use the bundle minimum-active links command in interface configuration mode.

bundle minimum-active links links

Syntax Description

links

Minimum number of active links allowed in the specified bundle.

The range is from 1 through 8.

Command Default

No default behavior or values

Command Modes

Interface configuration

Command History

Release

Modification

Release 3.6.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Task ID

Task ID

Operations

bundle

read, write

Examples

The following example shows how to set the number of active links required to bring up a specific bundle. In this example, the user configures Ethernet bundle 5 so that two links must be active before the bundle can be brought up:

RP/0/0/CPU0:router(config)# interface Bundle-Ether 5
RP/0/0/CPU0:router(config-if)# bundle minimum-active links 2
   

Related Commands

Command

Description

bundle maximum-active links

 

show bundle

Displays information about configured bundles.  

bundle port-priority

To configure a port priority for a bundle member link, enter the bundle port-priority command in interface configuration mode. To return to the default priority value, use the no form of this command.

bundle port-priority priority

no bundle port-priority priority

Syntax Description

priority

Priority for this port, where a lower value equals a higher priority. Replace the priority argument with a number. Range is from 1 through 65535.

Command Default

priority: 32768

Command Modes

Interface configuration

Command History

Release

Modification

Release 3.6.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

The bundle port-priority command enables you to determine whether or not similar ports, for example, Gigabit Ethernet ports with Link Aggregation Control Protocol (LACP) enabled or with LACP disabled, are aggregated based on the priority of the port.

In cases where LACP is enabled on aggregated ports, the port priority forms part of the port ID, which is transmitted within a packet when a device exchanges packets with its peer. The peers use the port ID within the packets to determine whether a given port should carry traffic for the bundle.

In cases where LACP is disabled, the port priority is used locally, and a device does not communicate its priority to a peer. Therefore, the peers should have the same priority configured to avoid a mismatch in which links are used for carrying traffic. For example, you could set up the port priorities so that a device would use links 1, 3, and 4 for carrying traffic, and its peer would use links 1, 2, and 3, where links use the same numbering sequence at both ends.


Note


A lower value is a higher priority for the port.


Task ID

Task ID

Operations

bundle

read, write

Examples

The following example shows how to configure the priority of a port:

RP/0/0/CPU0:router# config 
RP/0/0/CPU0:router(config)# interface gigabitethernet 0/1/0/1
RP/0/0/CPU0:router(config-if)# bundle port-priority 1
  

Related Commands

Command

Description

bundle id

Adds a port to an aggregated interface or bundle.  

show lacp bundle

Displays detailed information about LACP ports and their peers.  

show lacp port

 

show lacp system-id

Displays the local system ID used by the LACP.  

clear lacp counters

To clear Link Aggregation Control Protocol (LACP) counters for all members of all bundles, all members of a specific bundle, or for a specific port, enter the clear lacp counters command in EXEC mode.

clear lacp counters [ bundle { Bundle-Ether bundle-id | Bundle-POS bundle-id } | port { GigabitEthernet interface-path-id | TenGigE interface-path-id | POS interface-path-id } ]

Syntax Description

bundle

(Optional) Clears LACP counters for all members of a bundle.

Bundle-Ether node-id

(Optional) Ethernet bundle. Use the node-id argument to specify the node ID number of the LACP counters you want to clear. Range is 1 through 65535.

Bundle-POS bundle-id

(Optional) POS bundle. Use the bundle-id argument to specify the bundle ID number of the LACP counters you want to clear. Range is from 1 through 65535.

port

(Optional) Clears all LACP counters on the specified bundle or interface.

GigabitEthernet

(Optional) Gigabit Ethernet interface. Use the interface-path-id argument to specify the Gigabit Ethernet interface whose LACP counters you want to clear.

TenGigE

(Optional) Ten Gigabit Ethernet interface. Use the interface-path-id argument to specify the Ten Gigabit Ethernet interface whose LACP counters you want to clear.

POS

(Optional) Packet-over-SONET/SDH (POS) interface. Use the interface-path-id argument to specify the POS interface whose LACP counters you want to clear.

interface-path-id

Physical interface or virtual interface.

Note   

Use the show interfaces command to see a list of all interfaces currently configured on the router.

For more information about the syntax for the router, use the question mark (?) online help function.

Command Default

No default behavior or values

Command Modes

EXEC

Command History

Release

Modification

Release 3.6.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

For the interface-path-id argument, use the following guidelines:

  • If specifying a physical interface, the naming notation is rack/slot/module/port. The slash between values is required as part of the notation. An explanation of each component of the naming notation is as follows:
    • rack: Chassis number of the rack.
    • slot: Physical slot number of the line card.
    • module: Module number. A physical layer interface module (PLIM) is always 0.
    • port: Physical port number of the interface.
  • If specifying a virtual interface, the number range varies, depending on interface type.

Task ID

Task ID

Operations

bundle

execute

basic-services

read, write

Examples

The following example shows how to clear LACP counters:

RP/0/0/CPU0:router# clear lacp counters
   

Related Commands

Command

Description

show lacp counters

Displays LACP statistics.  

interface (bundle)

To create a new bundle and enter interface configuration mode for that bundle, use the interface (bundle) command in global configuration mode. To delete a bundle, use the no form of this command.

interface { Bundle-Ether | Bundle-POS } bundle-id

no interface { Bundle-Ether | Bundle-POS } bundle-id

Syntax Description

Bundle-Ether

Specifies or creates an Ethernet bundle interface.

Bundle-POS

Specifies or creates a POS bundle interface.

bundle-id

Number from 1 to 65535 that identifies a particular bundle.

Command Default

No bundle interface is configured.

Command Modes

Global configuration (config)

Command History

Release Modification

Release 3.6.0

This command was introduced.

Release 3.9.0

The Bundle-POS keyword was added.

Usage Guidelines

You must be in a user group associated with a task group that includes the proper task IDs. The command reference guides include the task IDs required for each command. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Task ID

Task ID Operation

bundle

read, write

Examples

The following example shows how to create an Ethernet bundle and enter interface configuration mode:

RP/0/0/CPU0:router# config 
RP/0/0/CPU0:router(config)# interface Bundle-Ether 3
RP/0/0/CPU0:router(config-if)# 

The following example shows how to create a new POS bundle and enter interface configuration mode:

RP/0/0/CPU0:router(config)# interface Bundle-POS 10
RP/0/0/CPU0:router(config-if)#
   

Related Commands

Command

Description

show bundle

Displays information about configured bundles.  

lacp packet-capture

To capture LACP packets so that their information can be displayed by the show lacp packet-capture command, use the lacp packet-capture command in EXEC mode.

{ lacp packet-capture gigabitethernet interface-path-id | pos interface-path-id | tengige interface-path-id number-of-packets }

To stop capturing LACP packets or to clear captured LACP packets, use the lacp packet-capture command in EXEC mode. { lacp packet-capture [ bundle-ether bundle-id ] [ bundle-pos bundle-id ] [ gigabitethernet interface-path-id ] [ pos interface-path-id ] [ tengige interface-path-id ] clear | stop }

Syntax Description

bundle-ether

Ethernet bundle interface specified by bundle-id.

bundle-pos

Packet-over-SONET (POS) bundle interface specified by bundle-id.

GigabitEthernet

Gigabit Ethernet interface specified by interface-path-id.

POS

Packet-over-SONET (POS) interface specified by interface-path-id.

TenGigE

Ten Gigabit Ethernet interface specified by interface-path-id.

interface-path-id

Physical interface or virtual interface.

Note   

Use the show interfaces command to see a list of all interfaces currently configured on the router.

For more information about the syntax for the router, use the question mark (?) online help function.

bundle-id

Number specifying the bundle interface. The range is 1 to 65535.

number-of-packets

Number of packets to capture.

clear

Clears all currently captured packets.

stop

Stops capturing packets.

Command Default

The default (no parameters) executes globally for all interfaces on the line card.

Command Modes

EXEC

Command History

Release

Modification

Release 3.9.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

The lacp packet-capture command captures transmitted and received LACP packets on a single bundle member interface. The contents of these packets can then be displayed by the show lacp packet-capture command. If the lacp packet-capture command is not issued, the show lacp packet-capture command does not display any information.

The lacp packet-capture command continues capturing LACP packets until the stop keyword is issued for that port or that bundle. Captured packets are stored and continue to be displayed until the clear keyword is issued for that port or that bundle.

LACP packets can only be captured for one port on a line card at a time. Starting a packet capture on a port implicitly stops and clears all packet-captures on all other ports on that line card.

To stop capturing LACP packets before the specified number of packets have been captured, issue the stop keyword.

If stop is specified for a single interface, packet capturing is stopped only on that interface.

If stop is specified for a bundle interface, packet capturing is stopped on all members of that bundle.

If stop is specified globally (the default - no parameters), packet capturing is stopped on all bundle interfaces on the router.

To clear all captured LACP packets that are stored for an interface, issue the clear keyword.

If clear is specified for a single interface, packets are cleared only on that interface.

If clear is specified for a bundle interface, packets are cleared on all members of that bundle.

If clear is specified globally (the default - no parameters), packets are cleared on all bundle interfaces on the router.

Task ID

Task ID

Operations

bundle

read

Examples

The following example shows how to capture LACP packets on a POS interface:

RP/0/0/CPU0:router# lacp packet-capture pos 0/1/0/0 100 
   

The following example shows how to stop capturing LACP packets on a POS interface:

RP/0/0/CPU0:router# lacp packet-capture pos 0/1/0/0 stop 
   

The following example shows how to clear all captured LACP packets on a POS interface:

RP/0/0/CPU0:router# lacp packet-capture pos 0/1/0/0 clear 
   

The following example shows how to capture LACP packets on a Gigabit Ethernet interface:

RP/0/0/CPU0:router# lacp packet-capture gigabitethernet 0/2/0/0 100 
   

The following example shows how to stop capturing LACP packets on a Gigabit Ethernet interface:

RP/0/0/CPU0:router# lacp packet-capture gigabitethernet 0/2/0/0 stop 
   

Related Commands

Command

Description

show lacp io

Displays the LACP transmission information that used by the transmitting device for sending packets on an interface.  

show lacp packet-capture

Displays the contents of LACP packets that are sent and received on an interface.  

lacp period short

Enables a short period time interval for the transmission and reception of LACP packets.  

lacp period short

To enable a short period time interval for the transmission and reception of Link Aggregation Control Protocol (LACP) packets, use the lacp period short command in interface configuration mode. To return to the default short period, use the no form of this command.

lacp period short [ receive interval ] [ transmit interval ]

no lacp period short [ receive interval ] [ transmit interval ]

Syntax Description

receive interval

Time interval (in milliseconds) for receiving LACP packets when LACP short period is enabled. The range is 100 to 1000 and must be multiples of 100, such as 100, 200, 300, and so on.

transmit interval

Time interval (in milliseconds) for transmitting LACP packets when LACP short period is enabled. The range is 100 to 1000 and must be multiples of 100, such as 100, 200, 300, and so on.

Command Default

The default is 1000.

Command Modes

Interface configuration

Command History

Release

Modification

Release 3.6.0

This command was introduced.

Release 3.9.0

The keywords transmit and receive were added.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.


Note


Only the default short period (1 second) is supported.


When you configure a custom LACP short period transmit interval at one end of a link, you must configure the same time period for the receive interval at the other end of the link.


Note


You must always configure the transmit interval at both ends of the connection before you configure the receive interval at either end of the connection. Failure to configure the transmit interval at both ends first results in route flapping (a route going up and down continuously). When you remove a custom LACP short period, you must do it in reverse order. You must remove the receive intervals first and then the transmit intervals.


Task ID

Task ID

Operations

bundle

read, write

Examples

Router A

The following example shows how to enable a default Link Aggregation Control Protocol (LACP) short period on a Gigabit Ethernet interface:

RP/0/0/CPU0:router# config 
RP/0/0/CPU0:router(config)# interface gigabitethernet 0/1/0/0 
RP/0/0/CPU0:router(config-if)# lacp period short 
RP/0/0/CPU0:router(config-if)# commit 
   

The following example shows how to configure custom Link Aggregation Control Protocol (LACP) short period transmit and receive intervals at both ends of a connection:

RP/0/0/CPU0:router# config 
RP/0/0/CPU0:router(config)# interface gigabitethernet 0/1/0/0 
RP/0/0/CPU0:router(config-if)# lacp period short 
RP/0/0/CPU0:router(config-if)# commit 
   
RP/0/0/CPU0:router# config 
RP/0/0/CPU0:router(config)# interface gigabitethernet 0/1/0/0 
RP/0/0/CPU0:router(config-if)# lacp period short 
RP/0/0/CPU0:router(config-if)# commit 
   
RP/0/0/CPU0:router# config 
RP/0/0/CPU0:router(config)# interface gigabitethernet 0/1/0/0 
RP/0/0/CPU0:router(config-if)# lacp period short transmit 500 
RP/0/0/CPU0:router(config-if)# commit 
   
RP/0/0/CPU0:router# config 
RP/0/0/CPU0:router(config)# interface gigabitethernet 0/1/0/0 
RP/0/0/CPU0:router(config-if)# lacp period short transmit 500 
RP/0/0/CPU0:router(config-if)# commit 
    
RP/0/0/CPU0:router# config 
RP/0/0/CPU0:router(config)# interface gigabitethernet 0/1/0/0 
RP/0/0/CPU0:router(config-if)# lacp period short receive 500 
RP/0/0/CPU0:router(config-if)# commit 
   
RP/0/0/CPU0:router# config 
RP/0/0/CPU0:router(config)# interface gigabitethernet 0/1/0/0 
RP/0/0/CPU0:router(config-if)# lacp period short receive 500 
RP/0/0/CPU0:router(config-if)# commit 
   

Related Commands

Command

Description

show lacp io

Displays the LACP transmission information that used by the transmitting device for sending packets on an interface.  

show lacp packet-capture

Displays the contents of LACP packets that are sent and received on an interface.  

lacp packet-capture

Captures LACP packets so that their information can be displayed.  

lacp system priority

To configure the priority for the current system, enter the lacp system priority command in global configuration mode. To return to the default LACP system priority value, use the no form of this command.

no lacp system priority priority

Syntax Description

s

Priority for this system. Replace priority with a number. Range is from 1 through 65535. A lower value is higher priority.

Command Default

priority: 32768

Command Modes

Global configuration

Command History

Release

Modification

Release 3.6.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

The system priority value forms part of the LACP system ID, which is transmitted within each LACP packet. The system ID, port ID and key combine to uniquely define a port within a LACP system.

Task ID

Task ID

Operations

bundle

read, write

Examples

The following example shows how to configure an LACP priority of 100 on a router:

RP/0/0/CPU0:router(config)# lacp system priority 100
   

Related Commands

Command

Description

show lacp system-id

Displays the local system ID used by the LACP.  

show lacp bundle

Displays detailed information about LACP ports and their peers.  

show lacp port

 

show bundle

To display information about all bundles or a specific bundle of a particular type, use the show bundle command in EXEC configuration mode.

show bundle [ { Bundle-Ether | Bundle-POS } bundle-id ]

Syntax Description

Bundle-Ether

Displays information for the specified Ethernet bundle.

Bundle-POS

Displays information for the specified POS bundle.

bundle-id

Number from 1 to 65535 that identifies a particular bundle.

Command Default

Information is displayed for all configured bundles.

Command Modes

EXEC (#)

Command History

Release Modification

Release 3.6.0

This command was introduced.

Release 3.8.0

The reasons keyword was removed.

Release 4.0.0

The output for this command was replaced with a new format.

Release 4.1.0

The following output fields were added:
  • Load-balancing
  • Cisco extensions

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

To see information for all bundles configured on the router, use the show bundleform of the command.

To see information for a specific bundle, use the show bundle Bundle-Etherbundle-idor show bundle Bundle-POSbundle-id form of the command with the number of the configured bundle.

Task ID

Task ID Operation

bundle

read

Examples

The following example shows output for all bundle interfaces that are configured on the router:

RP/0/0/CPU0:router# show bundle
Sun Mar  6 12:16:25.601 PST

Bundle-Ether10
  Status:                                    Up
  Local links <active/standby/configured>:   1 / 1 / 2
  Local bandwidth <effective/available>:     1000000 (1000000) kbps
  MAC address (source):                      f866.f213.25a8 (Gi0/1/0/16)
  Minimum active links / bandwidth:          1 / 1 kbps
  Maximum active links:                      1
  Wait while timer:                          2000 ms
  Load balancing:                            Default
  LACP:                                      Operational
    Flap suppression timer:                  Off
    Cisco extensions:                        Disabled
  mLACP:                                     Not configured
  IPv4 BFD:                                  Not operational
    State:                                   Off
    Fast detect:                             Enabled
    Start timer:                             Off
    Neighbor-unconfigured timer:             Off
    Preferred min interval:                  150 ms
    Preferred multiple:                      3
    Destination address:                     Not Configured

  Port                  Device           State        Port ID         B/W, kbps
  --------------------  ---------------  -----------  --------------  ----------
  Gi0/1/0/9             Local            Active       0x0001, 0x0001     1000000
      Link is Active
  Gi0/1/0/10            Local            Standby      0x0002, 0x0002     1000000
      Link is Standby due to maximum-active links configuration
Table 2 show bundle Field Descriptions
Field Description

Bundle-typenumber

Full name of the bundle interface, where type is Ether (Ethernet) or POS, followed by the configured number of the bundle.

Status:

State of the bundle on the local device, with one of the following possible values:

  • Admin down—The bundle has been configured to be shut down.
  • Bundle shut—The bundle is holding all links in Standby state and will not support any traffic.
  • Down—The bundle is operationally down. It has no Active members on the local device.
  • Nak—The local and peer devices cannot resolve a configuration error.
  • Partner down—The partner system indicates that the bundle is unable to forward traffic at its end.
  • PE isolated—The bundle is isolated from the core.
  • Up—The bundle has Active members on this device.

Local links <active/standby/configured>:

The number of links on the device (from 0 to the maximum number of supported links for the bundle) in the format 

x /  y / z, with the following values:

  • x—Number of links in Active state on the bundle.
  • y—Number of links in Standby state on the bundle.
  • z—Total number of links configured on the bundle.

Local bandwidth <effective/available>:

Bandwidth characteristics on the bundle in kilobits per second (kbps) in the format x / y, with the following values:

  • x—Current bandwidth of the bundle (this effective bandwidth might be limited by configuration).
  • y—Available bandwidth of the bundle that is the sum of the bandwidths of all of the locally active links.

MAC address (source):

Layer 2 MAC address on the bundle interface in the format

xxxx.xxxx.xxxx. The  (source) of the address

is shown in parentheses with the following possible values:

  • Interface name—The MAC address is from the displayed member interface type and path.
  • Configured—The MAC address is explicity configured.
  • Chassis pool—The MAC address is from the available pool of addresses for the chassis.
  • [unknown MAC source 0]—No MAC address could be assigned to the bundle. (You might see this display if you have not completed your bundle configuration.)

Minimum active links / bandwidth:

Displays the following information in the format

x / y kbps, with the following values:

  • x—Minimum number of active links (from 1 to the maximum number of links supported on the bundle) that are required for the bundle to be operative.
  • y—Minimum total bandwidth on active links (in kbps) that is required for the bundle to be operative.
  • (partner)—Shows that the peer system's value is in use.

Maximum active links:

Maximum number of links (from 1 to the maximum supported on a bundle) that can be active on the bundle.

Wait-while timer:

Amount of time (in milliseconds) that the system allows for the Link Aggregation Control Protocol (LACP) to negotiate on a "working"link, before moving a "protect"or backup link to Standby state.

Load balancing:

The default load balancing method for the system is used on the bundle.

LACP:

Displays whether or not Link Aggregation Control Protocol (LACP) is active on the bundle, with the following possible values:

  • Operational—All required configuration has been committed and LACP is in use on active members.
  • Not operational—LACP is not working because some mandatory configuration is missing on the bundle or on the active members of the bundle.
  • Not configured—None of the mandatory configuration for LACP has been committed on the bundle, and the LACP sub-fields are not displayed.

Flap suppression timer:

Displays the status of the flap suppression timer, with the following possible values:

  • Off—The flap suppression timer is not configured using the lacp switchover suppress-flaps command.
  • x ms—Amount of time allowed (in milliseconds) for standby links to activate after a working link fails, before putting the link in Down state.

Cisco extensions:

Displays whether or not the Cisco-specific TLVs for LACP are enabled. The possible values are Enabled or Disabled.

mLACP:

mLACP is not supported on the platform.

IPv4 BFD:

Displays whether or not IPv4-based bidirectional forwarding (BFD) is operating on the bundle interface, with the following possible values:

  • Operational—All required configuration has been committed for IPv4 BFD, and it is in use on the bundle.
  • Not operational—IPv4 BFD is not working because some mandatory configuration is missing on the bundle or on the active members of the bundle.
  • Not configured—None of the mandatory configuration for IPv4 BFD has been committed on the bundle, and the BFD sub-fields are not displayed.

State:

When BFD is enabled, displays the state of BFD sessions on the bundle from the sessions running on bundle members that is communicated to interested protocols, with the following possible values:

  • Down—The configured minimim threshold for active links or bandwidth for BFD bundle members is not available so BFD sessions are down.
  • Off—BFD is not configured on bundle members.
  • Up—BFD sessions on bundle members are up because the minimum threshold for the number of active links or bandwidth is met.

Fast detect:

Displays whether or not BFD fast detection is configured on the bundle, with the following possible values:

  • Enabled—Thebfd fast-detect command is configured on the bundle.
  • Disabled—The bfd fast-detect command is not configured on the bundle.

Start timer:

Displays status of the BFD start timer that is configured using the bfd address-family ipv4 timers start command, with the following possible values:

  • x s—Number of seconds (from 60 to 3600) after startup of a BFD member link session to wait for the expected notification from the BFD peer to be received, so that the session can be declared up. If the SCN is not received after that period of time, the BFD session is declared down.
  • Off—The start timer is not configured, and a BFD session is only declared Down upon notification from the BFD server.

Neighbor-unconfigured timer:

Displays status of the BFD start timer that is configured using the bfd address-family ipv4 timers nbr-unconfig command, with the following possible values:

  • x s—Number of seconds (from 60 to 3600) to wait after receipt of notification that the BFD configuration has been removed by a BFD neighbor, so that any configuration inconsistency between the BFD peers can be fixed. If the BFD configuration issue is not resolved before the specified timer is reached, the BFD session is declared down.
  • Off—The neighbor-unconfigured timer is not configured, and a BFD session is only declared Down upon notification from the BFD server.

Preferred min interval:

Number of milliseconds (in the format x ms) as the minimum control packet interval for BFD sessions. The range is 15 to 30000.

Preferred multiple:

Value of the multiplier (from 2 to 50) that is used for echo failure detection, which specifies the maximum number of echo packets that can be missed before a BFD session is declared Down.

Destination address:

Destination IP address for BFD sessions on bundle member links that is configured using the bfd address-family ipv4 destination command. "Not configured" is displayed when no destination IP address is configured.

Port

Name of the local interface port that is configured to be a bundle member The possible values are the shortened interface name or a text string.

Device

Label Distribution Protocol (LDP) address of the device where the interface port is located, with the following possible values:

  • address—IP address of the device.
  • Local—Interface port is on the local device.

State

Status of the port, with one of the following possible values

  • Active—Link can send and receive traffic.
  • BFD Running—Link is inactive because BFD is down or has not been fully negotiated.
  • Configured—Link is not operational or remains down due to a configuration mismatch. The link is not available for switchover from failure of an active link.
  • Hot Standby—Link is ready to take over if an active link fails and can immediately transition to Active state without further exchange of LACP protocol data units (PDUs).
  • Negotiating—Link is in the process of LACP negotiation and is being held in a lower LACP state by the peer (for example, because the link is Standby on the peer.)
  • Standby—Link is not sending or receiving traffic, but is available for swithchover from failure of an active link.

Port ID

ID of the interface port in the format x/y, with the following values:

  • x—Port priority as a 2-byte hexadecimal value.
  • y—Link ID as a 2-byte hexadecimal value.

B/W, kbps

Bandwidth of the interface port in kilobits per second.

State reason

Text string that is displayed beneath the bundle member listing explaining why a link has not reached Active state.

Table 3 State Reasons
Reason Description

BFD session is unconfigured on the remote end

The link is in BFD Running state because LACP is negotiated but the BFD session from the remote device has been unconfigured.

BFD state of this link is Down

The link is in BFD Running state because LACP is negotiated but the BFD session between the local system and the remote device is Down.

Bundle has been shut down

The link is in Configured state because the bundle it is configured as a member of is administratively down.

Bundle interface is not present in configuration

The link is in Configured state because the bundle it is configured as a member of has not itself been configured.

Bundle is in the process of being created

The link is in Configured state because the bundle it is configured as a member of is still being created.

Bundle is in the process of being deleted

The link is in Configured state because the bundle it is configured as a member of is being deleted.

Bundle is in the process of being replicated to this location

The link is in Configured state because the bundle it is configured as a member of is still being replicated to the linecard where the link is located.

Forced switchover to the mLACP peer

The link is in Configured state because it has been brought down as part of a forced switchover to the mLACP peer PoA. This happens only when brute force switchovers are configured.

ICCP group is isolated from the core network

The link is in Configured state because there is no connectivity through the network core for the ICCP group that the link and its bundle are part of. Therefore, the link has been brought down to prevent any traffic being sent by the LACP partner device.

Incompatible with other links in the bundle (bandwidth out of range)

The link is in Configured state because its bandwidth is incompatible with other links configured to be in the same bundle. The bandwidth may be too high or too low.

LACP shutdown is configured for the bundle

The link is in Standby state because the bundle is configured with LACP shutdown.

Incompatible with other links in the bundle (LACP vs non-LACP)

The link is in Configured state because its use of LACP is incompatible with other links configured in the same bundle. Some links might be running LACP while others are not.

Link is Attached and has not gone Collecting (reason unknown)

The link is in Negotiating state because the mLACP peer PoA has not indicated that the link has gone Collecting in the Mux machine. This could be because of an issue between the mLACP peer and its LACP partner or because this state has not been communicated to the local system.

Link is Collecting and has not gone Distributing (reason unknown)

The link is in Negotiating state because the mLACP peer PoA has not indicated that the link has gone Distributing in the Mux machine. This could be because of an issue between the mLACP peer and its LACP partner or because this state has not been communicated to the local system.

Link is being removed from the bundle

The link is being removed from the bundle and remains in Configured state while this happens.

Link is Defaulted; LACPDUs are not being received from the partner

The link is in Configured state because no LACPDUs are being received from the LACP partner device. Either the partner is not transmitting or the packets are getting lost.

Link is down

The link is in Configured state because it is operationally or administratively down.

Link is Expired; LACPDUs are not being received from the partner

The link is in Negotiating state because no LACPDUs have been received from the LACP Partner device in the Current-While period and the link is now marked as Expired in the Receive machine.

Link is in the process of being created

The link is in Configured state because the member configuration is still being processed.

Link is marked as Standby by mLACP peer

The link is in Standby state because this has been indicated by the mLACP peer PoA.

Link is Not Aggregatable (reason unknown)

The link is in Configured state because it is marked as an Individual link by the mLACP peer PoA.

Link is not operational as a result of mLACP negotiations

mLACP negotiations with the peer have led to this link being kept in Configured state. This is likely to indicate a misconfiguration between the two peer devices.

Link is Standby; bundle has more links than are supported

The link is in Standby state because the number of links in Selected state has already reached the hard platform limit on the number of active links.

Link is Standby due to maximum-active links configuration

The link is in Standby state because the number of links in Selected state has already reached the configured maximum active links threshold.

Link is waiting for BFD session to start

The link is in BFD Running state because LACP is negotiated but the BFD session has not started from the remote device.

Loopback: Actor and Partner have the same System ID and Key

The link is in Configured state because a loopback condition has been detected on the link—two links configured to be members of the bundle are actually connected to each other.

Not enough links available to meet minimum-active threshold

The link is in Standby state because there are not enough selectable links (i.e. links which meet the criteria to be marked Selected within the bundle) to meet the minimum active links/bandwidth threshold.

Partner has marked the link as Not Aggregatable

The link is in Configured state because it is marked as an Individual link by the LACP partner device.

Partner has not advertised that it is Collecting

The link is in Negotiating state because the LACP partner device has not advertised that the link is in Collecting state in its LACPDUs.

Partner has not echoed the correct parameters for this link

The link is in Negotiating state because the LACP partner device has not correctly echoed the local system's port information in the LACPDUs it is sending.

Partner is not Synchronized (Waiting, not Selected, or out-of-date)

The link is in Negotiating state because the mLACP peer PoA has not indicated that its LACP partner device is Synchronized. This could be because the devices are genuinely not Synchronized or because this state has not been communicated to the local system.

Partner is not Synchronized (Waiting, Standby, or LAG ID mismatch)

The link is in Negotiating state because the LACP partner device has not indicated that it is Synchronized in the LACPDUs it is sending. On the partner device the link could still be waiting for the Wait-While timer to expire, it could be held in Standby state, or there could be a misconfiguration leading to a LAG ID mismatch between links configured to be within the same bundle.

Partner System ID/Key do not match that of the Selected links

The link is in Configured state because the System ID or Operational Key specified by the LACP partner device does not match that seen on other Selected links within the same bundle. This probably indicates a misconfiguration.

Wait-while timer is running

The link is in Configured state because the Wait-While timer is still running and the new state has not yet been determined.

Related Commands

Command

Description

interface (bundle)

Specifies or creates a new bundle and enters interface configuration mode for that bundle.  

show bundle brief

To display summary information about all configured bundles, use the show bundle brief command in EXEC configuration mode.

show bundle brief

Syntax Description

This command has no keywords or arguments.

Command Default

Information for all configured bundles is displayed.

Command Modes

EXEC (#)

Command History

Release Modification
Release 4.0.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Task ID

Task ID Operation

bundle

read

Examples

The following examples shows the status of two bundles, BE16 and BE100, that are configured on the router. Both are Ethernet bundles and only bundle 16 is Up:

RP/0/0/CPU0:router# show bundle brief
Thu Mar  3 14:40:35.167 PST

Name   | IG       | State         | LACP | BFD |     Links     | Local b/w, |
       |          |               |      |     | act/stby/cfgd |    kbps    |
-------|----------|---------------|------|-----|---------------|------------|
BE16             - Up              On     Off         1 / 1 / 2      1000000
BE100            - Down            Off    Off         0 / 0 / 0            0

Table 1 describes the fields shown in the display.

Table 4 show bundle brief Field Descriptions
Field Description

Name

Abbreviated name of the bundle interface, with the following possible formats:

  • BEx—Ethernet bundle with ID number x.
  • BPy—POS bundle with ID number y.

IG

Interchassis group ID (if configured) of which the bundle is a member.

State

State of the bundle on the local device, with the following possible values:

  • Admin down—The bundle has been configured to be shut down.
  • Bundle shut—The bundle is holding all links in Standby state and will not support any traffic.
  • Down—The bundle is operationally down. It has no Active members on the local device.
  • Nak—The local and peer devices cannot resolve a configuration error.
  • Partner down—The partner system indicates that the bundle is unable to forward traffic at its end.
  • PE isolated—The bundle is isolated from the core.
  • Up—The bundle has Active members on this device.

LACP

Status of the Link Aggregation Control Protocol (LACP) on the bundle, with the following possible values:

  • On—LACP is in use on the bundle.
  • Off—LACP is not active.

BFD

When BFD is enabled, displays the state of BFD sessions on the bundle from the sessions running on bundle members that is communicated to interested protocols, with the following possible values:

  • Down—The configured minimim threshold for active links or bandwidth for BFD bundle members is not available so BFD sessions are down.
  • Off—BFD is not configured on bundle members.
  • Up—BFD sessions on bundle members are up because the minimum threshold for the number of active links or bandwidth is met.

Links act/stby/cfgd

Number of links on the bundle with a particular status in the format x/y/z, with the following values:

  • x—Number of links in Active state on the bundle for the local device (from 1 to the maximum number of links supported on the bundle).
  • y—Number of links in Standby state on the bundle for the local device (from 1 to the maximum number of links supported on the bundle).
  • z—Total number of links configured on the bundle for the local device (from 1 to the maximum number of links supported on the bundle).

Local b/w, kbps

Current bandwidth of the bundle on the local device (this effective bandwidth might be limited by configuration).

Related Commands

Command

Description

show bundle

Displays information about configured bundles.  

show bundle replication bundle-ether

To display the replication status of a link bundle interface, use the show bundle replication bundle-ether command in EXEC mode.

show bundle replication bundle-ether bundle_id [all] [in-progress] [pending]

Syntax Description

all

Shows replication status for all nodes.

in-progress

Shows only nodes with replication in progress.

pending

Shows only nodes pending replication.

Command Default

No default behavior or values

Command Modes

EXEC

Command History

Release

Modification

Release 3.9.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Task ID

Task ID

Operations

bundle

read

Examples

The following example shows how to

RP/0/0/CPU0:router# show bundle replication bundle-ether 1 all
  

show lacp bundle

To display detailed information about Link Aggregation Control Protocol (LACP) ports and their peers, enter the show lacp bundle command in EXEC mode.

show lacp bundle { Bundle-Ether | bundle-POS } bundle-id

Syntax Description

Bundle-Ether bundle-id

(Optional) Specifies the number of the Ethernet bundle whose information you want to display. Range is 1 through 65535.

Bundle-POS bundle-id

(Optional) Specifies the number of the POS bundle whose information you want to display. Range is 1 through 65535.

Command Default

No default behavior or values

Command Modes

EXEC

Command History

Release

Modification

Release 3.6.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Task ID

Task ID

Operations

bundle

read

Examples

The following example shows how to display LACP information for a specific Ethernet Bundle:

RP/0/0/CPU0:router# show lacp bundle Bundle-Ether 1

Flags: A - Device is in Active mode. P - Device is in Passive mode.
       S - Device sends PDUs at slow rate. F - Device sends PDUs at fast rate.
       D - Port is using default values for partner information
       E - Information about partner has expired
State: 0 - Port is Not Aggregatable. 1 - Port is Out Of Sync with peer.
       2 - Port is In Sync with peer. 3 - Port is Collecting.
       4 - Port is Collecting and Distributing.

Bundle-Ether1
                                Minimum active     Maximum active
  B/W (Kbps)   MAC address      Links  B/W (Kbps)  Links
  ----------   --------------   -----  ----------  -----
           0   0800.453a.651d       1      620000     32

  Port           State  Flags  Port ID         Key     System-ID
  ------------   -----  -----  --------------  ------  -------------------------
  Gi0/0/2/0      1      ASDE   0x8000, 0x0001  0x0001  0x8000, 08-00-45-3a-65-01
   PEER          0      PSD    0xffff, 0x0000  0x0000  0xffff, 00-00-00-00-00-00
  
Table 5 show lacp bundle Field Descriptions

Field

Description

Flags

Describes the possible flags that may apply to a device or port, under the “Flags” field.

State

Describes the possible flags that may apply the port state, under the “State” field.

Port

Port identifier, in the rack/slot/module/port notation.

State

Provides information about the state of the specified port. Possible flags are:

  • 0—Port is not aggregatable.
  • 1—Port is out of sync with peer.
  • 2—Port is in sync with peer.
  • 3—Port is collecting.
  • 4—Port is collecting and distributing.

Flags

Provides information about the state of the specified device or port. Possible flags are:

  • A—Device is in Active mode.
  • P—Device is in Passive mode.
  • S—Device requests peer to send PDUs at a slow rate.
  • F—Device requests peer to send PDUs at a fast rate.
  • D—Port is using default values for partner information.
  • E—Information about partner has expired.

Port ID

Port identifier, expressed in the format Nxnnnn. N is the port priority, and nnnn is the port number assigned by the sending router.

Key

Two-byte number associated with the specified link and aggregator. Each port is assigned an operational key. The ability of one port to aggregate with another is summarized by this key. Ports which have the same key select the same bundled interface. The system ID, port ID and key combine to uniquely define a port within a LACP system.

System-ID

System identifier. The system ID is a LACP property of the system which is transmitted within each LACP packet together with the details of the link.

Related Commands

Command

Description

bundle id

Adds a port to an aggregated interface or bundle.  

show bundle

Displays information about configured bundles.  

show lacp counters

To display Link Aggregation Control Protocol (LACP) statistics, enter the show lacp counters command in EXEC mode.

show lacp counters { Bundle-Ether | bundle-POS } bundle-id

Syntax Description

Bundle-Ether bundle-id

Specifies the Ethernet bundle whose counters you want to display. Replace bundle-id with a bundle identifier. Range is from 1 through 65535.

Bundle-POS bundle-id

Specifies the POS bundle whose counters you want to display. Replace bundle-id with a bundle identifier. Range is from 1 through 65535.

Command Default

No default behavior or values

Command Modes

EXEC

Command History

Release

Modification

Release 3.6.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Task ID

Task ID

Operations

bundle

read

Examples

The following example shows how to display LACP counters on an Ethernet bundle:

RP/0/0/CPU0:router# show lacp counters bundle-ether 1

Bundle-Ether1
                    LACPDUs                 Marker
Port           Sent        Received    Received    Resp. Sent  Last Cleared
-------------  ----------------------  ----------------------  ------------
Gi0/0/2/0              12           0           0           0  never

Port           Excess                  Excess                  Pkt Errors
-------------  ----------              ----------              ----------
Gi0/0/2/0               0                       0                       0
   
Table 6 show lacp counters Field Descriptions

Field

Description

LACPDUs

Provides the following statistics for Link Aggregation Control Protocol data units (LACPDUs):

  • Port
  • Sent
  • Received
  • Last Cleared
  • Excess
  • Pkt Errors

Marker

Provides the following statistics for marker packets:

  • Received
  • Resp. Sent
  • Last Cleared
  • Excess
  • Pkt Errors
Note   

The Marker Protocol is used by IEEE 802.3ad bundles to ensure that data no longer is transmitted on a link when a flow is redistributed away from that link.

Related Commands

Command

Description

clear lacp counters

Clears LACP counters for all members of all bundles, all members of a specific bundle, or for a specific port.  

show lacp io

To display the Link Aggregation Control Protocol (LACP) transmission information that used by the transmitting device for sending packets on an interface, use the show lacp io command in EXEC mode.

show lacp io { Bundle-Ether | bundle-POS } bundle-id { GigabitEthernet | POS | TenGigE } interface-path-id

Syntax Description

Bundle-Ether bundle-id

(Optional) Displays information for the Ethernet bundle interface with the specified bundle-id. The range is 1 through 65535.

Bundle-POS bundle-id

(Optional) Displays information for the POS bundle interface with the specified bundle-id. The range is 1 through 65535.

GigabitEthernet

(Optional) Displays information for the Gigabit Ethernet interface with the specified interface-path-id.

TenGigE

(Optional) Displays information for the Ten Gigabit Ethernet interface with the specified interface-path-id.

POS

(Optional) Displays information for the POS interface with the specified interface-path-id.

interface-path-id

Physical interface or virtual interface.

Note   

Use the show interfaces command to see a list of all interfaces currently configured on the router.

For more information about the syntax for the router, use the question mark (?) online help function.

Command Default

The default takes no parameters and displays information for all actively transmitting interfaces.

Command Modes

EXEC

Command History

Release

Modification

Release 3.9.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

This command displays information only for interfaces that are actively transmitting packets.

Task ID

Task ID

Operations

bundle

read

Examples

The following example shows how to display Link Aggregation Control Protocol (LACP) information for the Ethernet bundle interface with bundle ID 28.

RP/0/0/CPU0:router# show lacp io bundle-ether 28

Thu Jun 18 16:28:54.068 PST

Bundle-Ether28

Interface GigabitEthernet0/1/5/6
================================
Interface handle:       0x01180100
Interface media type:   Ethernet
Fast periodic interval: 1000ms
Source MAC address:     0015.63c0.b3b8
Actor system:   0x8000, 00-15-63-c0-b0-04
Actor key:      0x001c
Actor port:     0x8000, 0x0001
Actor state:     Act  (T/o)  Agg   Sync   Coll   Dist  (Def) (Exp)
Partner system: 0x8000, 00-15-63-58-b9-04
Partner key:    0x001c
Partner port:   0x0001, 0x0003
Partner state:   Act  (T/o)  Agg   Sync   Coll   Dist  (Def) (Exp)

Interface GigabitEthernet0/1/5/7
================================
Interface handle:       0x01180120
Interface media type:   Ethernet
Fast periodic interval: 1000ms
Source MAC address:     0015.63c0.b3b9
Actor system:   0x8000, 00-15-63-c0-b0-04
Actor key:      0x001c
Actor port:     0x8000, 0x0002
Actor state:     Act  (T/o)  Agg   Sync  (Coll) (Dist) (Def) (Exp)
Partner system: 0x8000, 00-15-63-58-b9-04
Partner key:    0x001c
Partner port:   0x0002, 0x0004
Partner state:   Act  (T/o)  Agg  (Sync) (Coll) (Dist) (Def) (Exp)
   

The following example shows how to display Link Aggregation Control Protocol (LACP) information for all actively transmitting interfaces:

RP/0/0/CPU0:router# show lacp io 

Thu Jun 18 16:33:57.330 PST

Bundle-Ether28

Interface GigabitEthernet0/1/5/6
================================
Interface handle:       0x01180100
Interface media type:   Ethernet
Fast periodic interval: 1000ms
Source MAC address:     0015.63c0.b3b8
Actor system:   0x8000, 00-15-63-c0-b0-04
Actor key:      0x001c
Actor port:     0x8000, 0x0001
Actor state:     Act  (T/o)  Agg   Sync   Coll   Dist  (Def) (Exp)
Partner system: 0x8000, 00-15-63-58-b9-04
Partner key:    0x001c
Partner port:   0x0001, 0x0003
Partner state:   Act  (T/o)  Agg   Sync   Coll   Dist  (Def) (Exp)

Interface GigabitEthernet0/1/5/7
================================
Interface handle:       0x01180120
Interface media type:   Ethernet
Fast periodic interval: 1000ms
Source MAC address:     0015.63c0.b3b9
Actor system:   0x8000, 00-15-63-c0-b0-04
Actor key:      0x001c
Actor port:     0x8000, 0x0002
Actor state:     Act  (T/o)  Agg   Sync  (Coll) (Dist) (Def) (Exp)
Partner system: 0x8000, 00-15-63-58-b9-04
Partner key:    0x001c
Partner port:   0x0002, 0x0004
Partner state:   Act  (T/o)  Agg  (Sync) (Coll) (Dist) (Def) (Exp)
   
Bundle-POS24

Interface POS0/1/4/0
====================
Interface handle:       0x011804c0
Interface media type:   POS
Fast periodic interval: 1000ms
Actor system:   0x8000, 00-15-63-c0-b0-04
Actor key:      0x0018
Actor port:     0x8000, 0x0003
Actor state:     Act  (T/o)  Agg   Sync   Coll   Dist  (Def) (Exp)
Partner system: 0x8000, 00-15-63-58-b9-04
Partner key:    0x0018
Partner port:   0x8000, 0x0001
Partner state:   Act  (T/o)  Agg   Sync   Coll   Dist  (Def) (Exp)

Interface POS0/1/4/1
====================
Interface handle:       0x011804e0
Interface media type:   POS
Fast periodic interval: 1000ms
Actor system:   0x8000, 00-15-63-c0-b0-04
Actor key:      0x0018
Actor port:     0x8000, 0x0004
Actor state:     Act  (T/o)  Agg   Sync   Coll   Dist  (Def) (Exp)
Partner system: 0x8000, 00-15-63-58-b9-04
Partner key:    0x0018
Partner port:   0x8000, 0x0002
Partner state:   Act  (T/o)  Agg   Sync   Coll   Dist  (Def) (Exp)
   

Related Commands

Command

Description

show lacp packet-capture

Displays the contents of LACP packets that are sent and received on an interface.  

lacp period short

Enables a short period time interval for the transmission and reception of LACP packets.  

lacp packet-capture

Captures LACP packets so that their information can be displayed.  

show lacp packet-capture

To display the contents of Link Aggregation Control Protocol (LACP) packets that are sent and received on an interface, use the show lacp packet-capture command in EXEC mode.

show lacp packet-capture [decoded] [ in | out ] { GigabitEthernet | POS | TenGigE } interface-path-id

Syntax Description

decoded

(Optional) Displays packet information in decoded form for the specified interface.

in

(Optional) Displays packet information for ingress packets only.

out

(Optional) Displays packet information for egress packets only.

GigabitEthernet

Displays packet information for the Gigabit Ethernet interface specified by interface-path-id.

POS

Displays packet information for the POS interface specified by interface-path-id.

TenGigE

Displays packet information for the Ten Gigabit Ethernet interface specified by interface-path-id.

interface-path-id

Physical interface or virtual interface.

Note   

Use the show interfaces command to see a list of all interfaces currently configured on the router.

For more information about the syntax for the router, use the question mark (?) online help function.

Command Default

The default displays both in and out information.

Command Modes

EXEC

Command History

Release

Modification

Release 3.9.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.


Note


The lacp packet-capture command captures transmit and receive packets on a single interface. The contents of these packets can then be displayed by the show lacp packet-capture command. If the lacp packet-capture command is not issued, the show lacp packet-capture command does not display any information.


Task ID

Task ID

Operations

bundle

read

Examples

Example 1

The following example shows how to display the contents of an LACP packet, in hexadecimal, for a Gigabit Ethernet interface:


Note


In the following example, after you issue the lacp packet-capture command, you must wait for a reasonable amount of time for the system to capture packets that are sent and received on the interface before you issue the show lacp packet-capture command. Otherwise, there is no information to display.


RP/0/0/CPU0:router# lacp packet-capture gigabitethernet 0/1/0/0 100
RP/0/0/CPU0:router# show lacp packet-capture gigabitethernet 0/1/0/0 

Wed Apr 29 16:27:40.996 GMT
OUT  Apr 29 17:05:50.123
========================
01 01 01 14 80 00 02 a7 4c 81 95 04 00 01 80 00 00 01 45 00 
00 00 02 14 ff ff 00 00 00 00 00 00 00 00 ff ff 00 00 40 00 
00 00 03 10 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 

OUT  Apr 29 17:35:50.124
========================
...
   

The following example shows how to display the LACP parameters, decoded from individual packets, transmitted and received on a Gigabit Ethernet interface:


Note


In the following example, after you issue the lacp packet-capture command, you must wait for a reasonable amount of time for the system to capture packets that are sent and received on the interface before you issue the show lacp packet-capture command. Otherwise, there is no information to display.


RP/0/0/CPU0:router# lacp packet-capture gigabitethernet 0/1/0/0 100
RP/0/0/CPU0:router# show lacp packet-capture decoded gigabitethernet 0/1/0/0 

Wed Apr 29 16:27:54.748 GMT
OUT  Apr 29 17:06:03.008
========================
Subtype: 0x01 - LACP     Version: 1

TLV: 0x01 - Actor Information       Length:  20
System: Priority: 32768, ID: 02-a7-4c-81-95-04
Key: 0x0001, Port priority: 32768, Port ID:     1
State:  Act  (T/o)  Agg  (Sync) (Coll) (Dist)  Def  (Exp)

TLV: 0x02 - Partner Information     Length:  20
System: Priority: 65535, ID: 00-00-00-00-00-00
Key: 0x0000, Port priority: 65535, Port ID:     0
State: (Act) (T/o) (Agg) (Sync) (Coll) (Dist)  Def  (Exp)

TLV: 0x03 - Collector Information   Length:  16
Max delay: 65535

TLV: 0x00 - Terminator              Length:   0
   

Related Commands

Command

Description

show lacp io

Displays the LACP transmission information that used by the transmitting device for sending packets on an interface.  

lacp period short

Enables a short period time interval for the transmission and reception of LACP packets.  

lacp packet-capture

Captures LACP packets so that their information can be displayed.  

show lacp port

To display detailed information about Link Aggregation Control Protocol (LACP) ports, enter the show lacp port command in EXEC mode.

show lacp port [ [ GigabitEthernet | POS | TenGigE ] interface_instance ]

Syntax Description

GigabitEthernet

(Optional) Gigabit Ethernet interface. Use the interface-path-id argument to specify the Gigabit Ethernet interface whose LACP counters you want to display.

TenGigE

(Optional) Ten Gigabit Ethernet interface. Use the interface-path-id argument to specify the Ten Gigabit Ethernet interface whose LACP counters you want to display.

POS

(Optional) Packet-over-SONET/SDH (POS) interface. Use the interface-path-id argument to specify the POS interface whose LACP counters you want to display.

interface-path-id

Physical interface or virtual interface.

Note   

Use the show interfaces command to see a list of all interfaces currently configured on the router.

For more information about the syntax for the router, use the question mark (?) online help function.

Command Default

No default behavior or values.

Command Modes

EXEC

Command History

Release

Modification

Release 3.6.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

For the interface-path-id argument, if specifying a physical interface, the naming notation is rack/slot/module/port. The slash between values is required as part of the notation. An explanation of each component of the naming notation is as follows:

  • rack: Chassis number of the rack.
  • slot: Physical slot number of the line card.
  • module: Module number. A physical layer interface module (PLIM) is always 0.
  • port: Physical port number of the interface.

Task ID

Task ID

Operations

bundle

read

Examples

The following example shows how to display LACP port information for all link bundles on a router:

RP/0/0/CPU0:router# show lacp port

Flags: A - Device is in Active mode. P - Device is in Passive mode.
       S - Device sends PDUs at slow rate. F - Device sends PDUs at fast rate.
       D - Port is using default values for partner information
       E - Information about partner has expired
State: 0 - Port is Not Aggregatable. 1 - Port is Out Of Sync with peer.
       2 - Port is In Sync with peer. 3 - Port is Collecting.
       4 - Port is Collecting and Distributing.

Bundle-Ether1
                                Minimum active     Maximum active
  B/W (Kbps)   MAC address      Links  B/W (Kbps)  Links
  ----------   --------------   -----  ----------  -----
           0   0800.453a.651d       1      620000     32

  Port           State  Flags  Port ID         Key     System-ID
  ------------   -----  -----  --------------  ------  -------------------------
  Gi0/0/2/0      1      ASDE   0x8000, 0x0001  0x0001  0x8000, 08-00-45-3a-65-01
   PEER          0      PSD    0xffff, 0x0000  0x0000  0xffff, 00-00-00-00-00-00
  
Table 7 show lacp port Field Descriptions

Field

Description

Port

Identifies the LACP port whose information is displayed. The port number is expressed in the rack/slot/module/port notation.

State

Provides information about the state of the specified device or port. Possible flags are:

  • 0—Port is not aggregatable.
  • 1—Port is out of sync with peer.
  • 2—Port is in sync with peer.
  • 3—Port is collecting.
  • 4—Port is collecting and distributing.

Flags

Provides information about the state of the specified port. Possible flags are:

  • A—Device is in Active mode.
  • P—Device is in Passive mode.
  • S—Device requests peer to send PDUs at a slow rate.
  • F—Device requests peer to send PDUs at a fast rate.
  • D—Port is using default values for partner information.
  • E—Information about partner has expired.

Port ID

Port identifier, expressed in the following format: Nxnnnn. N is the port priority, and nnnn is the port number assigned by the sending router.

Key

Two-byte number associated with the specified link and aggregator. Each port is assigned an operational key. The ability of one port to aggregate with another is summarized by this key. Ports which have the same key select the same bundled interface. The system ID, port ID and key combine to uniquely define a port within a LACP system.

System-ID

System identifier. The System ID is an LACP property of the system which is transmitted within each LACP packet together with the details of the link.

Related Commands

Command

Description

bundle id

Adds a port to an aggregated interface or bundle.  

show bundle

Displays information about configured bundles.  

show lacp system-id

To display the local system ID used by the Link Aggregation Control Protocol (LACP), enter the show lacp system-id command in EXEC mode.

show lacp system-id

Syntax Description

This command has no keywords or arguments.

Command Default

No default behavior or values

Command Modes

EXEC

Command History

Release

Modification

Release 3.6.0

This command was introduced.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.


Note


The System ID and details about the specific link are transmitted within each LACP packet.


Task ID

Task ID

Operations

bundle

read

Examples

The following example shows how to display the system ID used by the LACP:

RP/0/0/CPU0:router# show lacp system-id

Priority  MAC Address
--------  -----------------
  0x8000  08-00-45-3a-65-01
  
Table 8 show lacp system-id Field Descriptions

Field

Description

Priority

Priority for this system. A lower value is higher priority.

MAC Address

MAC address associated with the LACP system ID.

Related Commands

Command

Description

bundle id

Adds a port to an aggregated interface or bundle.  

show bundle

Displays information about configured bundles.