FD.io VPP  v19.04.4-rc0-5-ge88582fac
Vector Packet Processing
Layer 2 CLI

bvi create

Summary/usage

bvi create [mac <mac-addr>] [instance <instance>].

Description

Create a BVI interface. Optionally, a MAC Address can be provided. If not provided, 0b:0b::00:00:00:<instance> will be used.

Example usage
The following two command syntaxes are equivalent:
vpp# bvi create [mac <mac-addr>] [instance <instance>]
Example of how to create a bvi interface:
vpp# bvi create

Declaration and implementation

Declaration: l2_bvi_create_command (src/vnet/l2/l2_bvi.c line 286)

Implementation: l2_bvi_create_cli.

bvi delete

Summary/usage

bvi delete <interface>.

Description

Delete a BVI interface.

Example usage
The following two command syntaxes are equivalent:
vpp# bvi delete <interace>
Example of how to create a bvi interface:
vpp# bvi delete bvi0

Declaration and implementation

Declaration: l2_bvi_delete_command (src/vnet/l2/l2_bvi.c line 337)

Implementation: l2_bvi_delete_cli.

clear l2fib

Summary/usage

clear l2fib.

Description

This command clears all the MAC Address entries from the L2 FIB table.

Example usage
Example of how to clear the L2 FIB Table:
vpp# clear l2fib
Example to show the L2 FIB Table has been cleared:
vpp# show l2fib verbose
no l2fib entries

Declaration and implementation

Declaration: clear_l2fib_cli (src/vnet/l2/l2_fib.c line 377)

Implementation: clear_l2fib.

create bridge-domain

Summary/usage

create bridge-domain <bridge-domain-id> [learn <0|1>] [forward <0|1>] [uu-flood <0|1>] [flood <0|1>] [arp-term <0|1>] [mac-age <nn>] [bd-tag <tag>] [del].

Description

Create/Delete bridge-domain instance

Example usage

Example of creating bridge-domain 1:

vpp# create bridge-domain 1

bridge-domain 1

Example of creating bridge-domain 2 with enabling arp-term, mac-age 60:

vpp# create bridge-domain 2 arp-term 1 mac-age 60

bridge-domain 2

vpp# show bridge-domain
  ID   Index   BSN  Age(min)  Learning  U-Forwrd  UU-Flood  Flooding  ARP-Term  BVI-Intf
  0      0      0     off       off       off       off       off       off      local0
  1      1      0     off        on        on       off        on       off       N/A
  2      2      0      60        on        on       off        on        on       N/A

Example of delete bridge-domain 1:

vpp# create bridge-domain 1 del

Declaration and implementation

Declaration: bd_create_cli (src/vnet/l2/l2_bd.c line 1403)

Implementation: bd_add_del_command_fn.

l2 rewrite entry

Summary/usage

l2 rewrite entry [index <index>] [mask <hex-mask>] [value <hex-value>] [skip <n_bytes>] [del].

Description

Layer 2-Rewrite node uses classify tables to match packets. Then, using the provisioned mask and value, modifies the packet header.

Example usage
Todo:
This is incomplete. This needs a detailed description and a practical example.

Declaration and implementation

Declaration: l2_rw_entry_cli (src/vnet/l2/l2_rw.c line 449)

Implementation: l2_rw_entry_cli_fn.

l2fib add

Summary/usage

l2fib add <mac> <bridge-domain-id> filter | <intf> [static | bvi].

Description

This command adds a MAC Address entry to the L2 FIB table of an existing bridge-domain. The MAC Address can be static or dynamic. This command also allows a filter to be added, such that packets with given MAC Addresses (source mac or destination mac match) are dropped.

Example usage
Example of how to add a dynamic MAC Address entry to the L2 FIB table of a bridge-domain (where 200 is the bridge-domain-id):
vpp# l2fib add 52:54:00:53:18:33 200 GigabitEthernet0/8/0.200
Example of how to add a static MAC Address entry to the L2 FIB table of a bridge-domain (where 200 is the bridge-domain-id):
vpp# l2fib add 52:54:00:53:18:55 200 GigabitEthernet0/8/0.200 static
Example of how to add a filter such that a packet with the given MAC Address will be dropped in a given bridge-domain (where 200 is the bridge-domain-id):
vpp# l2fib add 52:54:00:53:18:77 200 filter
Example of show command of the provisioned MAC Addresses and filters:
vpp# show l2fib verbose
    Mac Address     BD Idx           Interface           Index  static  filter  bvi  refresh  timestamp
 52:54:00:53:18:33    1      GigabitEthernet0/8/0.200      3       0       0     0      0         0
 52:54:00:53:18:55    1      GigabitEthernet0/8/0.200      3       1       0     0      0         0
 52:54:00:53:18:77    1                 N/A                -1      1       1     0      0         0
3 l2fib entries

Declaration and implementation

Declaration: l2fib_add_cli (src/vnet/l2/l2_fib.c line 542)

Implementation: l2fib_add.

l2fib del

Summary/usage

l2fib del <mac> <bridge-domain-id> [].

Description

This command deletes an existing MAC Address entry from the L2 FIB table of an existing bridge-domain.

Example usage
Example of how to delete a MAC Address entry from the L2 FIB table of a bridge-domain (where 200 is the bridge-domain-id):
vpp# l2fib del 52:54:00:53:18:33 200

Declaration and implementation

Declaration: l2fib_del_cli (src/vnet/l2/l2_fib.c line 771)

Implementation: l2fib_del.

l2fib flush-mac all

Summary/usage

l2fib flush-mac all.

Description

This command kick off ager to delete all existing MAC Address entries, except static ones, associated with an interface from the L2 FIB table.

Example usage
Example of how to flush MAC Address entries learned on an interface from the L2 FIB table:
vpp# l2fib flush-mac interface GigabitEthernet2/1/0

Declaration and implementation

Declaration: l2fib_flush_mac_all_cli (src/vnet/l2/l2_fib.c line 885)

Implementation: l2fib_flush_mac_all.

l2fib flush-mac bridge-domain

Summary/usage

l2fib flush-mac bridge-domain <bd-id>.

Description

This command kick off ager to delete all existing MAC Address entries, except static ones, in a bridge domain from the L2 FIB table.

Example usage
Example of how to flush MAC Address entries learned in a bridge domain from the L2 FIB table:
vpp# l2fib flush-mac bridge-domain 1000

Declaration and implementation

Declaration: l2fib_flush_mac_bd_cli (src/vnet/l2/l2_fib.c line 950)

Implementation: l2fib_flush_mac_bd.

l2fib flush-mac interface

Summary/usage

l2fib flush-mac interface <if-name>.

Description

This command kick off ager to delete all existing MAC Address entries, except static ones, associated with an interface from the L2 FIB table.

Example usage
Example of how to flush MAC Address entries learned on an interface from the L2 FIB table:
vpp# l2fib flush-mac interface GigabitEthernet2/1/0

Declaration and implementation

Declaration: l2fib_flush_mac_int_cli (src/vnet/l2/l2_fib.c line 901)

Implementation: l2fib_flush_mac_int.

set bridge-domain arp entry

Summary/usage

set bridge-domain arp entry <bridge-domain-id> [<ip-addr> <mac-addr> [del] | del-all].

Description

Add an ARP entry to an existing bridge-domain.

Example usage
Example of how to add an ARP entry (where 200 is the bridge-domain-id):
vpp# set bridge-domain arp entry 200 192.168.72.45 52:54:00:3b:83:1a
Example of how to delete an ARP entry (where 200 is the bridge-domain-id):
vpp# set bridge-domain arp entry 200 192.168.72.45 52:54:00:3b:83:1a del

Declaration and implementation

Declaration: bd_arp_entry_cli (src/vnet/l2/l2_bd.c line 920)

Implementation: bd_arp_entry.

set bridge-domain arp term

Summary/usage

set bridge-domain arp term <bridge-domain-id> [disable].

Description

Modify whether or not an existing bridge-domain should terminate and respond to ARP Requests. ARP Termination is disabled by default.

Example usage
Example of how to enable ARP termination (where 200 is the bridge-domain-id):
vpp# set bridge-domain arp term 200
Example of how to disable ARP termination (where 200 is the bridge-domain-id):
vpp# set bridge-domain arp term 200 disable

Declaration and implementation

Declaration: bd_arp_term_cli (src/vnet/l2/l2_bd.c line 722)

Implementation: bd_arp_term.

set bridge-domain flood

Summary/usage

set bridge-domain flood <bridge-domain-id> [disable].

Description

Layer 2 flooding can be enabled and disabled on each interface and on each bridge-domain. Use this command to manage bridge-domains. It is enabled by default.

Example usage
Example of how to enable flooding (where 200 is the bridge-domain-id):
vpp# set bridge-domain flood 200
Example of how to disable flooding (where 200 is the bridge-domain-id):
vpp# set bridge-domain flood 200 disable

Declaration and implementation

Declaration: bd_flood_cli (src/vnet/l2/l2_bd.c line 527)

Implementation: bd_flood.

set bridge-domain forward

Summary/usage

set bridge-domain forward <bridge-domain-id> [disable].

Description

Layer 2 unicast forwarding can be enabled and disabled on each interface and on each bridge-domain. Use this command to manage bridge-domains. It is enabled by default.

Example usage
Example of how to enable forwarding (where 200 is the bridge-domain-id):
vpp# set bridge-domain forward 200
Example of how to disable forwarding (where 200 is the bridge-domain-id):
vpp# set bridge-domain forward 200 disable

Declaration and implementation

Declaration: bd_fwd_cli (src/vnet/l2/l2_bd.c line 462)

Implementation: bd_fwd.

set bridge-domain learn

Summary/usage

set bridge-domain learn <bridge-domain-id> [disable].

Description

Layer 2 learning can be enabled and disabled on each interface and on each bridge-domain. Use this command to manage bridge-domains. It is enabled by default.

Example usage
Example of how to enable learning (where 200 is the bridge-domain-id):
vpp# set bridge-domain learn 200
Example of how to disable learning (where 200 is the bridge-domain-id):
vpp# set bridge-domain learn 200 disable

Declaration and implementation

Declaration: bd_learn_cli (src/vnet/l2/l2_bd.c line 397)

Implementation: bd_learn.

set bridge-domain mac-age

Summary/usage

set bridge-domain mac-age <bridge-domain-id> <mins>.

Description

Layer 2 mac aging can be enabled and disabled on each bridge-domain. Use this command to set or disable mac aging on specific bridge-domains. It is disabled by default.

Example usage
Example of how to set mac aging (where 200 is the bridge-domain-id and 5 is aging time in minutes):
vpp# set bridge-domain mac-age 200 5
Example of how to disable mac aging (where 200 is the bridge-domain-id):
vpp# set bridge-domain flood 200 0

Declaration and implementation

Declaration: bd_mac_age_cli (src/vnet/l2/l2_bd.c line 704)

Implementation: bd_mac_age.

set bridge-domain rewrite

Summary/usage

set bridge-domain rewrite <bridge-domain> [disable].

Description

Layer 2-Rewrite node uses classify tables to match packets. Then, using the provisioned mask and value, modfies the packet header.

Example usage
Todo:
This is incomplete. This needs a detailed description and a practical example.

Declaration and implementation

Declaration: l2_rw_set_cli (src/vnet/l2/l2_rw.c line 642)

Implementation: l2_rw_set_cli_fn.

set bridge-domain uu-flood

Summary/usage

set bridge-domain uu-flood <bridge-domain-id> [disable].

Description

Layer 2 unknown-unicast flooding can be enabled and disabled on each bridge-domain. It is enabled by default.

Example usage
Example of how to enable unknown-unicast flooding (where 200 is the bridge-domain-id):
vpp# set bridge-domain uu-flood 200
Example of how to disable unknown-unicast flooding (where 200 is the bridge-domain-id):
vpp# set bridge-domain uu-flood 200 disable

Declaration and implementation

Declaration: bd_uu_flood_cli (src/vnet/l2/l2_bd.c line 592)

Implementation: bd_uu_flood.

set interface l2 bridge

Summary/usage

set interface l2 bridge <interface> <bridge-domain-id> [bvi|uu-fwd] [shg].

Description

Use this command put an interface into Layer 2 bridge domain. If a bridge-domain with the provided bridge-domain-id does not exist, it will be created. Interfaces in a bridge-domain forward packets to other interfaces in the same bridge-domain based on destination mac address. To remove an interface from a the Layer 2 bridge domain, put the interface in a different mode, for example Layer 3 mode.

Optionally, an interface can be added to a Layer 2 bridge-domain as a Bridged Virtual Interface (bvi). Only one interface in a Layer 2 bridge-domain can be a bvi.

Optionally, a split-horizon group can also be specified. This defaults to 0 if not specified.

Example usage
Example of how to configure a Layer 2 bridge-domain with three interfaces (where 200 is the bridge-domain-id):
vpp# set interface l2 bridge GigabitEthernet0/8/0.200 200
This interface is added a BVI interface:
vpp# set interface l2 bridge GigabitEthernet0/9/0.200 200 bvi
This interface also has a split-horizon group of 1 specified:
vpp# set interface l2 bridge GigabitEthernet0/a/0.200 200 1
Example of how to remove an interface from a Layer2 bridge-domain:
vpp# set interface l3 GigabitEthernet0/a/0.200

Declaration and implementation

Declaration: int_l2_bridge_cli (src/vnet/l2/l2_input.c line 967)

Implementation: int_l2_bridge.

set interface l2 efp-filter

Summary/usage

set interface l2 efp-filter <interface> [disable].

Description

EFP filtering is a basic switch feature which prevents an interface from transmitting a packet that doesn't match the interface's ingress match criteria. The check has two parts, one performed before egress vlan tag rewrite and one after. This command enables or disables the EFP filtering for a given sub-interface.

Example usage
Example of how to enable a Layer 2 efp-filter on a sub-interface:
vpp# set interface l2 efp-filter GigabitEthernet0/8/0.200
Example of how to disable a Layer 2 efp-filter on a sub-interface:
vpp# set interface l2 efp-filter GigabitEthernet0/8/0.200 disable

Declaration and implementation

Declaration: int_l2_efp_filter_cli (src/vnet/l2/l2_efp_filter.c line 561)

Implementation: int_l2_efp_filter.

set interface l2 flood

Summary/usage

set interface l2 flood <interface> [disable].

Description

Layer 2 flooding can be enabled and disabled on each interface and on each bridge-domain. Use this command to manage interfaces. It is enabled by default.

Example usage
Example of how to enable flooding:
vpp# set interface l2 flood GigabitEthernet0/8/0
Example of how to disable flooding:
vpp# set interface l2 flood GigabitEthernet0/8/0 disable

Declaration and implementation

Declaration: int_flood_cli (src/vnet/l2/l2_flood.c line 472)

Implementation: int_flood.

set interface l2 forward

Summary/usage

set interface l2 forward <interface> [disable].

Description

Layer 2 unicast forwarding can be enabled and disabled on each interface and on each bridge-domain. Use this command to manage interfaces. It is enabled by default.

Example usage
Example of how to enable forwarding:
vpp# set interface l2 forward GigabitEthernet0/8/0
Example of how to disable forwarding:
vpp# set interface l2 forward GigabitEthernet0/8/0 disable

Declaration and implementation

Declaration: int_fwd_cli (src/vnet/l2/l2_fwd.c line 528)

Implementation: int_fwd.

set interface l2 input classify

Summary/usage

set interface l2 input classify intfc <interface-name> [ip4-table <n>]

[ip6-table <n>] [other-table <n>].

Description

Configure l2 input classification.

Example usage
vpp# set interface l2 input classify intfc <interface-name> [ip4-table <index>] [ip6-table <index>] [other-table <index>]
Todo:
This is incomplete. This needs a detailed description and a practical example.

Declaration and implementation

Declaration: int_l2_input_classify_cli (src/vnet/l2/l2_input_classify.c line 647)

Implementation: int_l2_input_classify_command_fn.

set interface l2 learn

Summary/usage

set interface l2 learn <interface> [disable].

Description

Layer 2 learning can be enabled and disabled on each interface and on each bridge-domain. Use this command to manage interfaces. It is enabled by default.

Example usage
Example of how to enable learning:
vpp# set interface l2 learn GigabitEthernet0/8/0
Example of how to disable learning:
vpp# set interface l2 learn GigabitEthernet0/8/0 disable

Declaration and implementation

Declaration: int_learn_cli (src/vnet/l2/l2_learn.c line 526)

Implementation: int_learn.

set interface l2 output classify

Summary/usage

set interface l2 output classify intfc <<interface-name>> [ip4-table <n>]

[ip6-table <n>] [other-table <n>].

Description

Configure Layer 2 output classification.

Example usage
vpp# set interface l2 output classify intfc <interface-name> [ip4-table <index>] [ip6-table <index>] [other-table <index>]
Todo:
This is incomplete. This needs a detailed description and a practical example.

Declaration and implementation

Declaration: int_l2_output_classify_cli (src/vnet/l2/l2_output_classify.c line 639)

Implementation: int_l2_output_classify_command_fn.

set interface l2 pbb-tag-rewrite

Summary/usage

set interface l2 pbb-tag-rewrite <interface> [disable | pop | push | translate_pbb_stag <outer_tag> dmac <address> smac <address> s_id <nn> [b_vlanid <nn>]].

Declaration and implementation

Declaration: int_l2_pbb_vtr_cli (src/vnet/l2/l2_vtr.c line 820)

Implementation: int_l2_pbb_vtr.

set interface l2 rewrite

Summary/usage

set interface l2 rewrite <interface> [table <table index>] [miss-index <entry-index>].

Description

Layer 2-Rewrite node uses classify tables to match packets. Then, using the provisioned mask and value, modifies the packet header.

Example usage
Todo:
This is incomplete. This needs a detailed description and a practical example.

Declaration and implementation

Declaration: l2_rw_interface_cli (src/vnet/l2/l2_rw.c line 523)

Implementation: l2_rw_interface_cli_fn.

set interface l2 tag-rewrite

Summary/usage

set interface l2 tag-rewrite <interface> [disable | pop {1|2} | push {dot1q|dot1ad} <tag> <tag>].

Description

VLAN tag rewrite provides the ability to change the VLAN tags on a packet. Existing tags can be popped, new tags can be pushed, and existing tags can be swapped with new tags. The rewrite feature is attached to a subinterface as input and output operations. The input operation is explicitly configured. The output operation is the symmetric opposite and is automatically derived from the input operation.

POP: For pop operations, the subinterface encapsulation (the vlan tags specified when it was created) must have at least the number of popped tags. e.g. the "pop 2" operation would be rejected on a single-vlan interface. The output tag-rewrite operation for pops is to push the specified number of vlan tags onto the packet. The pushed tag values are the ones in the subinterface encapsulation.

PUSH: For push operations, the ethertype is also specified. The output tag-rewrite operation for pushes is to pop the same number of tags off the packet. If the packet doesn't have enough tags it is dropped.

Example usage

By default a subinterface has no tag-rewrite. To return a subinterface to this state use:

vpp# set interface l2 tag-rewrite GigabitEthernet0/8/0.200 disable

To pop vlan tags off packets received from a subinterface, use:

vpp# set interface l2 tag-rewrite GigabitEthernet0/8/0.200 pop 1

vpp# set interface l2 tag-rewrite GigabitEthernet0/8/0.200 pop 2

To push one or two vlan tags onto packets received from an interface, use:

vpp# set interface l2 tag-rewrite GigabitEthernet0/8/0.200 push dot1q 100

vpp# set interface l2 tag-rewrite GigabitEthernet0/8/0.200 push dot1ad 100 150

Tags can also be translated, which is basically a combination of a pop and push.

vpp# set interface l2 tag-rewrite GigabitEthernet0/8/0.200 translate 1-1 dot1ad 100

vpp# set interface l2 tag-rewrite GigabitEthernet0/8/0.200 translate 2-2 dot1ad 100 150

vpp# set interface l2 tag-rewrite GigabitEthernet0/8/0.200 translate 1-2 dot1q 100

vpp# set interface l2 tag-rewrite GigabitEthernet0/8/0.200 translate 2-1 dot1q 100 150

To display the VLAN Tag settings, show the associate bridge-domain:

vpp# show bridge-domain 200 detail

 ID   Index   Learning   U-Forwrd   UU-Flood   Flooding   ARP-Term     BVI-Intf
200     1        on         on         on         on         off          N/A

         Interface           Index  SHG  BVI        VLAN-Tag-Rewrite
 GigabitEthernet0/8/0.200      5     0    -       trans-1-1 dot1ad 100
 GigabitEthernet0/9/0.200      4     0    -               none
 GigabitEthernet0/a/0.200      6     0    -               none

Declaration and implementation

Declaration: int_l2_vtr_cli (src/vnet/l2/l2_vtr.c line 674)

Implementation: int_l2_vtr.

set interface l2 xconnect

Summary/usage

set interface l2 xconnect <interface> <peer interface>.

Description

Use this command put an interface into Layer 2 cross-connect mode. Both interfaces must be in this mode for bi-directional traffic. All packets received on one interface will be transmitted to the other. To remove the Layer 2 cross-connect, put the interface in a different mode, for example Layer 3 mode.

Example usage
Example of how to configure a Layer2 cross-connect between two interfaces:
vpp# set interface l2 xconnect GigabitEthernet0/8/0.300 GigabitEthernet0/9/0.300
vpp# set interface l2 xconnect GigabitEthernet0/9/0.300 GigabitEthernet0/8/0.300
Example of how to remove a Layer2 cross-connect:
vpp# set interface l3 GigabitEthernet0/8/0.300
vpp# set interface l3 GigabitEthernet0/9/0.300

Declaration and implementation

Declaration: int_l2_xc_cli (src/vnet/l2/l2_input.c line 1033)

Implementation: int_l2_xc.

set interface l2 xcrw

Summary/usage

set interface l2 xcrw <interface> next <node-name>
[del] [tx-fib-id <id>] [ipv6] rw <hex-bytes>.

Description

Add or delete a Layer 2 to Layer 3 rewrite cross-connect. This is used to hook Layer 2 interface(s) up to the Layer 3 stack in arbitrary ways. For example, cross-connect an L2 interface or (future) bridge to an mpls-o-gre tunnel. Set up the L2 rewrite string as shown in mpls_gre_rewrite, and use "mpls-post-rewrite" to fix the GRE IP header checksum and length fields.

Example usage
Todo:
This is incomplete. This needs a detailed description and a practical example.

Declaration and implementation

Declaration: set_l2_xcrw_command (src/vnet/l2/l2_xcrw.c line 509)

Implementation: set_l2_xcrw_command_fn.

show bridge-domain

Summary/usage

show bridge-domain [bridge-domain-id [detail|int|arp|bd-tag]].

Description

Show a summary of all the bridge-domain instances or detailed view of a single bridge-domain. Bridge-domains are created by adding an interface to a bridge using the 'set interface l2 bridge' command.

Example usage

Example of displaying all bridge-domains:

vpp# show bridge-domain

 ID   Index   Learning   U-Forwrd   UU-Flood   Flooding   ARP-Term     BVI-Intf
 0      0        off        off        off        off        off        local0
200     1        on         on         on         on         off          N/A

Example of displaying details of a single bridge-domains:

vpp# show bridge-domain 200 detail

 ID   Index   Learning   U-Forwrd   UU-Flood   Flooding   ARP-Term     BVI-Intf
200     1        on         on         on         on         off          N/A

         Interface           Index  SHG  BVI        VLAN-Tag-Rewrite
 GigabitEthernet0/8/0.200      3     0    -               none
 GigabitEthernet0/9/0.200      4     0    -               none

Declaration and implementation

Declaration: bd_show_cli (src/vnet/l2/l2_bd.c line 1180)

Implementation: bd_show.

show l2 rewrite entries

Summary/usage

show l2 rewrite entries.

Description

Layer 2-Rewrite node uses classify tables to match packets. Then, using the provisioned mask and value, modifies the packet header.

Example usage
Todo:
This is incomplete. This needs a detailed description and a practical example.

Declaration and implementation

Declaration: l2_rw_show_entries_cli (src/vnet/l2/l2_rw.c line 592)

Implementation: l2_rw_show_entries_cli_fn.

show l2 rewrite interfaces

Summary/usage

show l2 rewrite interfaces.

Description

Layer 2-Rewrite node uses classify tables to match packets. Then, using the provisioned mask and value, modifies the packet header.

Example usage
Todo:
This is incomplete. This needs a detailed description and a practical example.

Declaration and implementation

Declaration: l2_rw_show_interfaces_cli (src/vnet/l2/l2_rw.c line 558)

Implementation: l2_rw_show_interfaces_cli_fn.

show l2fib

Summary/usage

show l2fib [all] | [bd_id <nn> | bd_index <nn>] [learn | add] | [raw].

Description

This command displays the MAC Address entries of the L2 FIB table. Output can be filtered to just get the number of MAC Addresses or display each MAC Address for all bridge domains or just a single bridge domain.

Example usage
Example of how to display the number of MAC Address entries in the L2 FIB table:
vpp# show l2fib
3 l2fib entries
Example of how to display all the MAC Address entries in the L2 FIB table:
vpp# show l2fib all
    Mac Address     BD Idx           Interface           Index  static  filter  bvi  refresh  timestamp
 52:54:00:53:18:33    1      GigabitEthernet0/8/0.200      3       0       0     0      0         0
 52:54:00:53:18:55    1      GigabitEthernet0/8/0.200      3       1       0     0      0         0
 52:54:00:53:18:77    1                 N/A                -1      1       1     0      0         0
3 l2fib entries

Declaration and implementation

Declaration: show_l2fib_cli (src/vnet/l2/l2_fib.c line 333)

Implementation: show_l2fib.

show l2patch

Summary/usage

Show l2 interface cross-connect entries.

Description

Show Layer 2 patch entries.

Example usage
vpp# show l2patch
Todo:
This is incomplete. This needs a detailed description and a practical example.

Declaration and implementation

Declaration: show_l2patch_cli (src/vnet/l2/l2_patch.c line 422)

Implementation: show_l2patch.

show l2xcrw

Summary/usage

show l2xcrw.

Description

Display a Layer 2 to Layer 3 rewrite cross-connect. This is used to hook Layer 2 interface(s) up to the Layer 3 stack in arbitrary ways.

Todo:
This is incomplete. This needs a detailed description and a practical example.

Declaration and implementation

Declaration: show_l2xcrw_command (src/vnet/l2/l2_xcrw.c line 598)

Implementation: show_l2xcrw_command_fn.

show mode

Summary/usage

show mode [<if-name1> <if-name2> ...].

Description

Modify the packet processing mode of the interface to Layer 3, which implies packets will be routed. This is the default mode of an interface. Use this command to remove an interface from a Layer 2 cross-connect or a Layer 2 bridge.

Example usage
Example of how to set the mode of an interface to Layer 3:
vpp# set interface l3 GigabitEthernet0/8/0.200

Show the packet processing mode (Layer2 cross-connect, Layer 2 bridge, Layer 3 routed) of all interfaces and sub-interfaces, or limit the output to just the provided list of interfaces and sub-interfaces. The output shows the mode, the interface, and if the interface is a member of a bridge, the bridge-domain-id and the split horizon group (shg).

Example usage
Example of displaying the mode of all interfaces:
vpp# show mode
l3 local0
l3 GigabitEthernet0/8/0
l3 GigabitEthernet0/9/0
l3 GigabitEthernet0/a/0
l2 bridge GigabitEthernet0/8/0.200 bd_id 200 shg 0
l2 bridge GigabitEthernet0/9/0.200 bd_id 200 shg 0
l2 bridge GigabitEthernet0/a/0.200 bd_id 200 shg 0
l2 xconnect GigabitEthernet0/8/0.300 GigabitEthernet0/9/0.300
l2 xconnect GigabitEthernet0/9/0.300 GigabitEthernet0/8/0.300
Example of displaying the mode of a selected list of interfaces:
vpp# show mode GigabitEthernet0/8/0 GigabitEthernet0/8/0.200
l3 GigabitEthernet0/8/0
l2 bridge GigabitEthernet0/8/0.200 bd_id 200 shg 0

Declaration and implementation

Declaration: show_l2_mode (src/vnet/l2/l2_input.c line 1199)

Implementation: show_int_mode.

test l2fib

Summary/usage

test l2fib [add|del|check] mac <base-addr> count <nn>.

Description

The set of 'test l2fib' commands allow the L2 FIB table of the default bridge domain (bridge-domain-id of 0) to be modified.

Example usage

Example of how to add a set of 4 sequential MAC Address entries to L2 FIB table of the default bridge-domain:

vpp# test l2fib add mac 52:54:00:53:00:00 count 4

Show the set of 4 sequential MAC Address entries that were added:

vpp# show l2fib verbose

    Mac Address     BD Idx           Interface           Index  static  filter  bvi  refresh  timestamp
52:54:00:53:00:00    0       GigabitEthernet0/8/0.300     8       0       0     0      0         0
52:54:00:53:00:01    0       GigabitEthernet0/8/0.300     8       0       0     0      0         0
52:54:00:53:00:03    0       GigabitEthernet0/8/0.300     8       0       0     0      0         0
52:54:00:53:00:02    0       GigabitEthernet0/8/0.300     8       0       0     0      0         0
4 l2fib entries

Example of how to check that the set of 4 sequential MAC Address entries were added to L2 FIB table of the default bridge-domain. Used a count of 5 to produce an error:

vpp# test l2fib check mac 52:54:00:53:00:00 count 5

The output of the check command is in the log files. Log file location may vary based on your OS and Version:

# tail -f /var/log/messages | grep l2fib_test_command_fn

Sep 7 17:15:24 localhost vnet[4952]: l2fib_test_command_fn:446: key 52:54:00:53:00:04 AWOL

Example of how to delete a set of 4 sequential MAC Address entries from L2 FIB table of the default bridge-domain:

vpp# test l2fib del mac 52:54:00:53:00:00 count 4

Declaration and implementation

Declaration: l2fib_test_command (src/vnet/l2/l2_fib.c line 671)

Implementation: l2fib_test_command_fn.

test l2patch

Summary/usage

test l2patch rx <intfc> tx <intfc> [del].

Description

Create or delete a Layer 2 patch.

Example usage
vpp# test l2patch rx <intfc> tx <intfc> [del]
Todo:
This is incomplete. This needs a detailed description and a practical example.

Declaration and implementation

Declaration: test_patch_command (src/vnet/l2/l2_patch.c line 370)

Implementation: test_patch_command_fn.