Layer 2 CLI

bvi create

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

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

The following two command syntaxes are equivalent:

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

Example of how to create a bvi interface:

bvi create

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

Implementation: l2_bvi_create_cli

bvi delete

bvi delete <interface>

Delete a BVI interface.

The following two command syntaxes are equivalent:

bvi delete <interface>

Example of how to create a bvi interface:

bvi delete bvi0

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

Implementation: l2_bvi_delete_cli

clear l2fib

clear l2fib

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

Example of how to clear the L2 FIB Table:

clear l2fib

Example to show the L2 FIB Table has been cleared:

show l2fib verbose

no l2fib entries

Declaration: clear_l2fib_cli src/vnet/l2/l2_fib.c line 420

Implementation: clear_l2fib

create bridge-domain

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

Create/Delete bridge-domain instance

Example of creating bridge-domain 1:

create bridge-domain 1

bridge-domain 1

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

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:

create bridge-domain 1 del

Declaration: bd_create_cli src/vnet/l2/l2_bd.c line 1591

Implementation: bd_add_del_command_fn

l2 rewrite entry

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

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

practical example.

Declaration: l2_rw_entry_cli src/vnet/l2/l2_rw.c line 405

Implementation: l2_rw_entry_cli_fn

l2fib add

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

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 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):

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):

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):

l2fib add 52:54:00:53:18:77 200 filter

Example of show command of the provisioned MAC Addresses and filters:

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: l2fib_add_cli src/vnet/l2/l2_fib.c line 597

Implementation: l2fib_add

l2fib del

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

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

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):

l2fib del 52:54:00:53:18:33 200

Declaration: l2fib_del_cli src/vnet/l2/l2_fib.c line 837

Implementation: l2fib_del

l2fib flush-mac all

l2fib flush-mac all

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 of how to flush MAC Address entries learned on an interface from the L2 FIB table:

l2fib flush-mac interface GigabitEthernet2/1/0

Declaration: l2fib_flush_mac_all_cli src/vnet/l2/l2_fib.c line 981

Implementation: l2fib_flush_mac_all

l2fib flush-mac bridge-domain

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

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 of how to flush MAC Address entries learned in a bridge domain from the L2 FIB table:

l2fib flush-mac bridge-domain 1000

Declaration: l2fib_flush_mac_bd_cli src/vnet/l2/l2_fib.c line 1046

Implementation: l2fib_flush_mac_bd

l2fib flush-mac interface

l2fib flush-mac interface <if-name>

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 of how to flush MAC Address entries learned on an interface from the L2 FIB table:

l2fib flush-mac interface GigabitEthernet2/1/0

Declaration: l2fib_flush_mac_int_cli src/vnet/l2/l2_fib.c line 997

Implementation: l2fib_flush_mac_int

set bridge-domain arp entry

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

Add an ARP entry to an existing bridge-domain.

Example of how to add an ARP entry (where 200 is the bridge-domain-id):

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):

set bridge-domain arp entry 200 192.168.72.45 52:54:00:3b:83:1a del

Declaration: bd_arp_entry_cli src/vnet/l2/l2_bd.c line 1123

Implementation: bd_arp_entry

set bridge-domain arp term

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

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

Example of how to enable ARP termination (where 200 is the bridge-domain-id):

set bridge-domain arp term 200

Example of how to disable ARP termination (where 200 is the bridge-domain-id):

set bridge-domain arp term 200 disable

Declaration: bd_arp_term_cli src/vnet/l2/l2_bd.c line 925

Implementation: bd_arp_term

set bridge-domain arp-ufwd

set bridge-domain arp-ufwd <bridge-domain-id> [disable]

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

Example of how to enable arp-unicast forwarding (where 200 is the bridge-domain-id):

set bridge-domain arp-ufwd 200

Example of how to disable arp-unicast forwarding (where 200 is the bridge-domain-id):

set bridge-domain arp-ufwd 200 disable

Declaration: bd_arp_ufwd_cli src/vnet/l2/l2_bd.c line 746

Implementation: bd_arp_ufwd

set bridge-domain default-learn-limit

set bridge-domain default-learn-limit <maxentries>

Declaration: bd_default_learn_limit_cli src/vnet/l2/l2_bd.c line 487

Implementation: bd_default_learn_limit

set bridge-domain flood

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

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 of how to enable flooding (where 200 is the bridge-domain-id):

set bridge-domain flood 200

Example of how to disable flooding (where 200 is the bridge-domain-id):

set bridge-domain flood 200 disable

Declaration: bd_flood_cli src/vnet/l2/l2_bd.c line 616

Implementation: bd_flood

set bridge-domain forward

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

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 of how to enable forwarding (where 200 is the bridge-domain-id):

set bridge-domain forward 200

Example of how to disable forwarding (where 200 is the bridge-domain-id):

set bridge-domain forward 200 disable

Declaration: bd_fwd_cli src/vnet/l2/l2_bd.c line 551

Implementation: bd_fwd

set bridge-domain learn

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

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 of how to enable learning (where 200 is the bridge-domain-id):

set bridge-domain learn 200

Example of how to disable learning (where 200 is the bridge-domain-id):

set bridge-domain learn 200 disable

Declaration: bd_learn_cli src/vnet/l2/l2_bd.c line 458

Implementation: bd_learn

set bridge-domain learn-limit

set bridge-domain learn-limit <bridge-domain-id> <learn-limit>

Declaration: bd_learn_limit_cli src/vnet/l2/l2_bd.c line 907

Implementation: bd_learn_limit

set bridge-domain mac-age

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

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 of how to set mac aging (where 200 is the bridge-domain-id and 5 is aging time in minutes):

set bridge-domain mac-age 200 5

Example of how to disable mac aging (where 200 is the bridge-domain-id):

set bridge-domain flood 200 0

Declaration: bd_mac_age_cli src/vnet/l2/l2_bd.c line 858

Implementation: bd_mac_age

set bridge-domain rewrite

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

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

practical example.

Declaration: l2_rw_set_cli src/vnet/l2/l2_rw.c line 598

Implementation: l2_rw_set_cli_fn

set bridge-domain uu-flood

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

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

Example of how to enable unknown-unicast flooding (where 200 is the bridge-domain-id):

set bridge-domain uu-flood 200

Example of how to disable unknown-unicast flooding (where 200 is the bridge-domain-id):

set bridge-domain uu-flood 200 disable

Declaration: bd_uu_flood_cli src/vnet/l2/l2_bd.c line 681

Implementation: bd_uu_flood

set interface l2 bridge

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

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 of how to configure a Layer 2 bridge-domain with three interfaces (where 200 is the bridge-domain-id):

set interface l2 bridge GigabitEthernet0/8/0.200 200

This interface is added a BVI interface:

set interface l2 bridge GigabitEthernet0/9/0.200 200 bvi

This interface also has a split-horizon group of 1 specified:

set interface l2 bridge GigabitEthernet0/a/0.200 200 1

Example of how to remove an interface from a Layer2 bridge-domain:

set interface l3 GigabitEthernet0/a/0.200

Declaration: int_l2_bridge_cli src/vnet/l2/l2_input.c line 650

Implementation: int_l2_bridge

set interface l2 efp-filter

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

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 of how to enable a Layer 2 efp-filter on a sub-interface:

set interface l2 efp-filter GigabitEthernet0/8/0.200

Example of how to disable a Layer 2 efp-filter on a sub-interface:

set interface l2 efp-filter GigabitEthernet0/8/0.200 disable

Declaration: int_l2_efp_filter_cli src/vnet/l2/l2_efp_filter.c line 563

Implementation: int_l2_efp_filter

set interface l2 flood

set interface l2 flood <interface> [disable]

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 of how to enable flooding:

set interface l2 flood GigabitEthernet0/8/0

Example of how to disable flooding:

set interface l2 flood GigabitEthernet0/8/0 disable

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

Implementation: int_flood

set interface l2 forward

set interface l2 forward <interface> [disable]

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 of how to enable forwarding:

set interface l2 forward GigabitEthernet0/8/0

Example of how to disable forwarding:

set interface l2 forward GigabitEthernet0/8/0 disable

Declaration: int_fwd_cli src/vnet/l2/l2_fwd.c line 531

Implementation: int_fwd

set interface l2 input classify

set interface l2 input classify intfc <interface-name> [ip4-table <n>]
  [ip6-table <n>] [other-table <n>]

Configure l2 input classification.

set interface l2 input classify intfc <interface-name> [ip4-table <index>] [ip6-table <index>] [other-table <index>]

practical example.

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

set interface l2 learn <interface> [disable]

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 of how to enable learning:

set interface l2 learn GigabitEthernet0/8/0

Example of how to disable learning:

set interface l2 learn GigabitEthernet0/8/0 disable

Declaration: int_learn_cli src/vnet/l2/l2_learn.c line 544

Implementation: int_learn

set interface l2 output classify

set interface l2 output classify intfc <<interface-name>> [ip4-table <n>]
  [ip6-table <n>] [other-table <n>]

Configure Layer 2 output classification.

set interface l2 output classify intfc <interface-name> [ip4-table <index>] [ip6-table <index>] [other-table <index>]

practical example.

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

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: int_l2_pbb_vtr_cli src/vnet/l2/l2_vtr.c line 820

Implementation: int_l2_pbb_vtr

set interface l2 rewrite

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

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

practical example.

Declaration: l2_rw_interface_cli src/vnet/l2/l2_rw.c line 479

Implementation: l2_rw_interface_cli_fn

set interface l2 tag-rewrite

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

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.

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

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

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

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

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

set interface l2 tag-rewrite GigabitEthernet0/8/0.200 translate 1-1 dot1ad 100
set interface l2 tag-rewrite GigabitEthernet0/8/0.200 translate 2-2 dot1ad 100 150
set interface l2 tag-rewrite GigabitEthernet0/8/0.200 translate 1-2 dot1q 100
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:

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: int_l2_vtr_cli src/vnet/l2/l2_vtr.c line 674

Implementation: int_l2_vtr

set interface l2 xconnect

set interface l2 xconnect <interface> <peer interface>

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 of how to configure a Layer2 cross-connect between two interfaces:

set interface l2 xconnect GigabitEthernet0/8/0.300 GigabitEthernet0/9/0.300
set interface l2 xconnect GigabitEthernet0/9/0.300 GigabitEthernet0/8/0.300

Example of how to remove a Layer2 cross-connect:

set interface l3 GigabitEthernet0/8/0.300
set interface l3 GigabitEthernet0/9/0.300

Declaration: int_l2_xc_cli src/vnet/l2/l2_input.c line 716

Implementation: int_l2_xc

set interface l2 xcrw

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

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.

practical example.

Declaration: set_l2_xcrw_command src/vnet/l2/l2_xcrw.c line 500

Implementation: set_l2_xcrw_command_fn

set l2fib scan-delay

set l2fib scan-delay <delay>

This command set scan delay (in 1/10s unit)

Declaration: l2fib_set_scan_delay_cli src/vnet/l2/l2_fib.c line 868

Implementation: l2fib_set_scan_delay

show bridge-domain

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

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 of displaying all bridge-domains:

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:

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: bd_show_cli src/vnet/l2/l2_bd.c line 1353

Implementation: bd_show

show l2 rewrite entries

show l2 rewrite entries

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

practical example.

Declaration: l2_rw_show_entries_cli src/vnet/l2/l2_rw.c line 548

Implementation: l2_rw_show_entries_cli_fn

show l2 rewrite interfaces

show l2 rewrite interfaces

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

practical example.

Declaration: l2_rw_show_interfaces_cli src/vnet/l2/l2_rw.c line 514

Implementation: l2_rw_show_interfaces_cli_fn

show l2fib

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

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 of how to display the number of MAC Address entries in the L2 FIB table:

show l2fib

3 l2fib entries

Example of how to display all the MAC Address entries in the L2 FIB table:

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: show_l2fib_cli src/vnet/l2/l2_fib.c line 357

Implementation: show_l2fib

show l2patch

Show l2 interface cross-connect entries

Show Layer 2 patch entries.

show l2patch

practical example.

Declaration: show_l2patch_cli src/vnet/l2/l2_patch.c line 425

Implementation: show_l2patch

show l2xcrw

show l2xcrw

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.

practical example.

Declaration: show_l2xcrw_command src/vnet/l2/l2_xcrw.c line 589

Implementation: show_l2xcrw_command_fn

show mode

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

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 of how to set the mode of an interface to Layer 3:

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 of displaying the mode of all interfaces:

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:

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: show_l2_mode src/vnet/l2/l2_input.c line 882

Implementation: show_int_mode

test l2fib

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

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

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

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

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:

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:

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

Declaration: l2fib_test_command src/vnet/l2/l2_fib.c line 728

Implementation: l2fib_test_command_fn

test l2patch

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

Create or delete a Layer 2 patch.

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

practical example.

Declaration: test_patch_command src/vnet/l2/l2_patch.c line 373

Implementation: test_patch_command_fn