CLI interface

$ ssh admin@172.16.0.3
Hello admin,
Welcome to the srlinux CLI.
Type 'help' (and press <ENTER>) if you need any help using this.
--{ running }--[ ]--

?

In this example, entering a question mark after the command network-instance, shows its usage.

# network-instance ?
usage: network-instance <name>
Network instances configured on the local system
Positional arguments:
  name              [string] A unique name identifying the network instance

help

The following example shows the system output from the help command

# help
--------------------------------------------------------------------------------
You are now in the running mode.
Here you can navigate and query the running configuration.
This configuration has been validated, committed and send to the applications.
There are multiple modes you can enter while using the CLI.
Each mode offers its own set of capabilities:
    - running mode: Allows traversing and inspecting of the running configuration.
    - state mode: Allows traversing and inspecting of the state.
    - candidate mode: Allows editing and inspecting of the configuration.
    - show mode: Allows traversing and executing of custom show routines.
To switch mode use 'enter <mode-name>', e.g. 'enter candidate'
To navigate around, you can simply type the node name to enter a context, while
'exit [all]' is used to navigate up.
'{' and '}' are an alternative way to enter and leave contexts.
'?' can be used to see all possible commands, or alternatively,
'<TAB>' can be used to trigger auto-completion.
'tree' displays the tree of possible nodes you can enter.
--------------------------------------------------------------------------------
--{ * running }--[  ]--

Change from running to shared mode

To change from running to a shared candidate mode (using the default)’:

--{ running }--[  ]--
# enter candidate
--{ * candidate shared default}--[  ]--

The asterisk (*) next to the mode name indicates that the candidate configuration has changes that have not yet been committed.

Switch between shared and candidate exclusive modes

To switch between candidate shared and candidate exclusive modes, you must first switch to a different configuration mode (for example, running mode) before entering candidate shared or exclusive mode. For example:

--{ running }--[  ]--
# enter candidate exclusive
--{ candidate exclusive }--[  ]--
Are you sure? (y/[n]):
# enter running
--{ running }--[  ]--
# enter candidate
--{ candidate shared default}--[  ]--

Enter candidate mode for named candidate

To enter candidate mode for a named configuration candidate, you specify the name of the configuration candidate. For example:

--{ running }--[  ]--
# enter candidate name cand1
--{ candidate shared cand1}--[  ]--

commit stay and commit confirmed

This example shows the commit stay option:

# enter candidate
--{ candidate shared default}--[  ]--
# interface ethernet-1/1 subinterface 1
--{ * candidate shared default}--[ interface ethernet-1/1 subinterface 1 ]--

# commit stay
All changes have been committed. Starting new transaction.

--{ candidate shared default}--[ interface ethernet-1/1 subinterface 1 ]--

This example shows the commit confirmed option with a custom timeout followed by an accept action.

--{ * candidate shared default}--[  ]--
# commit confirmed timeout 86400
Commit confirmed (automatic rollback in a day)
All changes have been committed. Leaving candidate mode.
--{ running }--[  ]--

# commit confirmed accept
Info: Commit confirmed, automatic rollback cancelled
--{ candidate shared default}--[  ]--
#

Delete configuration

The following example displays the system banner configuration, deletes the configured banner, then displays the resulting system banner configuration:

--{ candidate shared default}--[  ]--
# info system banner
    system {
        banner {
            login-banner "Welcome to SRLinux!"
        }
    }
--{ candidate shared default}--[  ]--
# delete system banner
--{ candidate shared default}--[  ]--
# info system banner
    system {
        banner {
        }
    }

Add a comment

The following example adds a comment to an ACL configuration. If there is already a comment in the configuration, the new comment is appended to the existing comment.

--{ candidate shared default}--[  ]--
# acl ipv4-filter ip_tcp !! "Filter TCP traffic"

To replace the existing comment, use !!! instead of !! in the command.

Add a comment in annotate mode

The following example adds the same comment to the ACL by navigating to the context for the ACL and entering the comment in annotate mode:

--{ * candidate shared default}--[  ]--
# acl ipv4-filter ip_tcp
--{ * candidate shared default}--[ acl ipv4-filter ip_tcp ]--
# annotate
Press [Meta+enter] or [Esc] followed by [Enter] to finish
-> Filter TCP traffic

You can enter multiple lines in annotate mode. To exit annotate mode, press Esc, then the Enter key.

In CLI output, the comment is displayed in the context it was entered. For example:

--{ running }--[  ]--
# info acl
    acl {
        ipv4-filter ip_tcp {
            !!! Filter TCP traffic
            entry 100 {
                action {
                    drop {
                        log true
                    }
                }
            }
            entry 110 {
                action {
                    accept {
                        log true
                    }
                }
            }
        }
    }

To remove a comment, enter annotate mode for the context and press Esc then Enter without entering any text.

Discard changes and remain in candidate mode

All changes have been committed. Starting new transaction.

--{ candidate shared }--[ interface ethernet-1/1 subinterface 1 ]--
# discard stay
--{ candidate shared }--[ interface ethernet-1/1 subinterface 1 ]--

show version | as text

The following example displays the output of the show version command as lines of text:

--{ running }--[  ]--
# show version | as text
--------------------------------------------------------------------------------
Hostname          : 3-node-srlinux-A
Chassis Type      : 7250 IXR-10
Part Number       : Sim Part No.
Serial Number     : Sim Serial No.
System MAC Address: 12:12:02:FF:00:00
Software Version  : v19.11.1
Build Number      : 291-g4664705
Architecture      : x86_64
Last Booted       : 2019-12-07T00:34:48.942Z
Total Memory      : 16396536 kB
Free Memory       : 5321932 kB
--------------------------------------------------------------------------------

show version | as json

The following example displays the output of the show version command in JSON format:

--{ running }--[  ]--
# show version | as json
{
  "basic system info": {
    "Hostname": "3-node-srlinux-A",
    "Chassis Type": "7250 IXR-10",
    "Part Number": "Sim Part No.",
    "Serial Number": "Sim Serial No.",
    "System MAC Address": "12:12:02:FF:00:00",
    "Software Version": "v19.11.1",
    "Build Number": "291-g4664705",
    "Architecture": "x86_64",
    "Last Booted": "2019-12-07T00:34:48.942Z",
    "Total Memory": "16396536 kB",
    "Free Memory": "5319448 kB"
  }
}

show version | as table

The following example displays the output of the show version command as a table:

--{ running }--[  ]--
# show version | as table
+----------+----------+-------+--------+--------+----------+----------+----------+
| Hostname | Chassis  | Part  | Serial | System | Software | Architec |   Last   |
|          |   Type   | Number| Number |  MAC   | Version  |   ture   |  Booted  |
|          |          |       |        | Address|          |          |          |
+==========+==========+=======+========+========+==========+===========+=========+
| 3-node-s | 7250     | Sim Pa| Sim    |12:12:05| v19.11.1 | x86_64   | 2019-12- |
| rlinux-A | IXR-10   |rt No. | Serial |:FF:00:0|          |          | 07T00:34 |
|          |          |       | No.    |0       |          |          | :48.942Z |
+----------+----------+-------+--------+--------+----------+----------+----------+

show interface | grep

The following example pipes the output of the show interface command to grep so that only lines with mgmt0 appear in the output:

--{ running }--[  ]--
# show interface | grep mgmt0
mgmt0 is up, speed None, type None
  mgmt0.0 is up

show interface | more

The following example pipes the output of the show interface command to more to display one page of output at a time:

--{ running }--[  ]--
# show interface | more
===================================================================================
ethernet-1/10 is up, speed 100G, type 100GBASE-CR4 CA-L
  ethernet-1/10.1 is up
    Encapsulation: null
    IPv4 addr    : 192.35.1.0/31 (static)
    IPv6 addr    : 2001:192:35:1::/127 (static, preferred)
    IPv6 addr    : fe80::22e0:9cff:fe78:e2ea/64 (link-layer, preferred)
-----------------------------------------------------------------------------------
ethernet-1/21 is up, speed 100G, type 100GBASE-CR4 CA-L
  ethernet-1/21.1 is up
    Encapsulation: null
    IPv4 addr    : 192.45.1.254/31 (static)
    IPv6 addr    : 2001:192:45:1::fe/127 (static, preferred)
    IPv6 addr    : fe80::22e0:9cff:fe78:e2f5/64 (link-layer, preferred)
-----------------------------------------------------------------------------------
ethernet-1/22 is up, speed 100G, type 100GBASE-CR4 CA-L
  ethernet-1/22.1 is up
    Encapsulation: null
    IPv4 addr    : 192.45.3.254/31 (static)
    IPv6 addr    : 2001:192:45:3::fe/127 (static, preferred)
    IPv6 addr    : fe80::22e0:9cff:fe78:e2f6/64 (link-layer, preferred)
-----------------------------------------------------------------------------------
ethernet-1/3 is up, speed 100G, type 100GBASE-CR4 CA-L
  ethernet-1/3.1 is up
    Encapsulation: null
    IPv4 addr    : 192.57.1.1/31 (static)
    IPv6 addr    : 2001:192:57:1::1/127 (static, preferred)
    IPv6 addr    : fe80::22e0:9cff:fe78:e2e3/64 (link-layer, preferred)
-----------------------------------------------------------------------------------
--More--

show interface | head

The following example pipes the output of the show interface command to head to display only the first 8 lines:

--{ running }--[  ]--
# show interface | head --lines 8
===================================================================================
ethernet-1/10 is up, speed 100G, type 100GBASE-CR4 CA-L
  ethernet-1/10.1 is up
    Encapsulation: null
    IPv4 addr    : 192.35.1.0/31 (static)
    IPv6 addr    : 2001:192:35:1::/127 (static, preferred)
    IPv6 addr    : fe80::22e0:9cff:fe78:e2ea/64 (link-layer, preferred)
-----------------------------------------------------------------------------------

Filter info from state command

The following example directs the output of the info from state command to filter on the Ethernet node.

--{ running }--[  ]--
# info from state interface ethernet-1/1 | filter ethernet
    interface ethernet-1/1 {
        description dut1-dut2-1
        admin-state enable
        mtu 9232
        loopback-mode false
        ifindex 54
        oper-state up
        last-change "an hour ago"
        linecard 1
        forwarding-complex 0
        vlan-tagging false
        ethernet {
            port-speed 10G
            hw-mac-address 00:01:02:FF:00:00
            flow-control {
                receive false
            }
            statistics {
                in-mac-pause-frames 0
                in-oversize-frames 0
                in-jabber-frames 0
                in-fragment-frames 0
                in-crc-error-frames 0
                out-mac-pause-frames 0
                in-64b-frames 0
                in-65b-to-127b-frames 0
                in-128b-to-255b-frames 0
                in-256b-to-511b-frames 0
                in-512b-to-1023b-frames 0
                in-1024b-to-1518b-frames 0
                in-1519b-or-longer-frames 0
                out-64b-frames 0
                out-65b-to-127b-frames 0
                out-128b-to-255b-frames 0
                out-256b-to-511b-frames 0
                out-512b-to-1023b-frames 0
                out-1024b-to-1518b-frames 0
                out-1519b-or-longer-frames 0
            }
        }
    }

Apply filter to a specific field

Specify the field option to further filter the output to a specific field. For example:

--{ running }--[  ]--
# info from state interface ethernet-1/1 | filter fields ethernet/port-speed
    interface ethernet-1/1 {
        ethernet {
            port-speed 10G
        }
    }

Apply non-zero filter

The following example shows how you can use the non-zero option to display only non-zero values to eliminate non-useful information. The use of the non-zero option only filters integer fields that are currently set to 0 and empty strings.

--{ running }--[  ]--
# info from state interface ethernet-1/* statistics | filter non-zero
    interface ethernet-1/1 {
        statistics {
            in-octets 1106761
            in-unicast-packets 1592
            in-broadcast-packets 32
            in-multicast-packets 10736
            in-error-packets 5
            out-octets 2859625
            out-unicast-packets 31576
            out-broadcast-packets 18
            out-multicast-packets 243
            carrier-transitions 3
        }
    }
    interface ethernet-1/2 {
        statistics {
            in-octets 1399961
            in-unicast-packets 129
            in-broadcast-packets 11
            in-multicast-packets 14772
            in-error-packets 1
            out-octets 2474023
            out-unicast-packets 26126
            out-broadcast-packets 19
            out-multicast-packets 173
            carrier-transitions 3
        }
    }
    interface ethernet-1/20 {
        statistics {
            in-octets 1443012
            in-unicast-packets 350
            in-broadcast-packets 12
            in-multicast-packets 15639
            in-error-packets 3
            out-octets 2319629
            out-unicast-packets 25558
            out-broadcast-packets 17
            out-multicast-packets 199
            carrier-transitions 3
        }
    }

Direct show interface output to file

The following example directs the output of the show interface command to a file. The output is saved in JSON format.

--{ running }--[  ]--
# show interface | as json > show_interface.json

Use > to create a new file with the specified filename; if the file already exists, it is replaced. Use > to append the output to the specified file if it exists.

Access output file in bash mode

You can access the file using bash mode. For example:

--{ * running }--[  ]--
# bash
[bob@3-node-srlinux-A /]# more show_interface.json
{
  "interfaces": [
    {
      "Interface": "ethernet-1/1",
      "subinterfaces": [
        {
          "Subinterface": "ethernet-1/1.1",
          "Oper": "up",
          "IPv4 Addresses": "192.168.11.1/30",
          "IPv6 Addresses": "2001:1::192:168:11:1/126, fe80::1012:5ff:feff:0/64"
        }
      ]
    },
    {
--More--(42%)

Add local time and session username to CLI prompt

The following example adds the local time and session username to the SR Linux CLI prompt.

--{ candidate shared default}--[  ]--
# environment prompt "--{{ {modified}{mode_and_session_type} }}--[ {pwc} ]--{time}--\n{user}@{host}# "

In the example, the local time is configured with the {time} keyword, and the session username is configured with the {user} keyword. The line break is configured with \n. Use the environment prompt ? command to display the keywords that you can configure in the SR Linux CLI prompt.

After you enter this command, the CLI prompt looks like the following:

--{ * candidate shared default}--[ acl ]--Wed 03:07PM--
bob@3-node-srlinux-A#

Add number of changes and host name to toolbar

The following example adds the number of changes made to the configuration and the host name to the bottom toolbar.

--{ candidate shared default}--[  ]--
# environment bottom-toolbar "Current mode: {modified_with_change_count}{mode_and_session_type} | {aaa_user}@{host} ({aaa_session_id})  {time}"

In the example, the number of configuration changes is configured with the {modified_with_change_count} keyword, and the host name is configured with the {host} keyword. Use the environment bottom-toolbar ? command to display the keywords that you can configure in the bottom toolbar.

After you enter this command, the bottom toolbar looks like the following:

Current mode: *10 candidate shared       root@3-node-srlinux-A (36)  Wed 10:18PM

Set CLI engine type to basic

The following example configures the SR Linux to use the basic CLI engine for CLI sessions:

--{ candidate shared default}--[  ]--
# environment cli-engine type basic

Set output to JSON format

The following example configures CLI command output to be displayed in JSON format.

--{ candidate shared default}--[  ]--
# environment output-format json

Subsequent command output is displayed in JSON format by default. For example:

--{ running }--[  ]--
# show version
{
  "basic system info": {
    "Hostname": "3-node-srlinux-A",
    "Chassis Type": "7250 IXR-10",
    "Part Number": "Sim Part No.",
    "Serial Number": "Sim Serial No.",
    "System MAC Address": "12:12:02:FF:00:00",
    "Software Version": "v19.11.1",
    "Build Number": "291-g4664705",
    "Architecture": "x86_64",
    "Last Booted": "2019-12-07T00:34:48.942Z",
    "Total Memory": "16396536 kB",
    "Free Memory": "5319448 kB"
  }
}

Set alias for info interface command

The following example configures the alias display interface for the SR Linux command info interface <name>subinterface <index> | as table:

--{ candidate shared default}--[  ]--
# environment alias "display interface" "info / interface {} subinterface {subinterface} | as table"

In the example, the display interface alias consists of the keywords info interface, arguments to specify an interface name and subinterface number, and keywords to display the output as a table. The alias name and aliased command are each enclosed in quotes. The arguments are enclosed in braces ({ }). The argument {} creates an optional unnamed variable for the interface name, and the argument {subinterface} creates an optional parameter named subinterface.

When you enter the alias at the CLI prompt, the output of the aliased command is displayed. For example:

# display interface ethernet-1/1 subinterface 1
+---------------------+-------+-------------+
|      Interface      | Index | Admin-state |
+=====================+=======+=============+
| ethernet-1/1        |     1 | enable      |
+---------------------+-------+-------------+

If you omit the optional parameters for the interface and subinterface names, they are treated as wildcards. For example:

# display interface
+---------------------+-------+-------------+
|      Interface      | Index | Admin-state |
+=====================+=======+=============+
| ethernet-1/1        |     1 | enable      |
| ethernet-1/2        |     1 | enable      |
| lo0                 |     1 | enable      |
| mgmt0               |     0 | enable      |
+---------------------+-------+-------------+

Set space bar to auto-complete commands

--{ candidate shared default}--[  ]--
# environment complete-on-space true

environment show

--{ candidate shared default}--[  ]--
# environment show
[alias]
"show system configuration session" = "info from state / system configuration session {} | as table | filter fields username type started"
"show system configuration checkpoint" = "info from state / system configuration checkpoint {} | as table | filter fields name comment username created"
"display interface" = "info / interface {} subinterface {subinterface} | as table

[bottom-toolbar]
value = "Current mode: {modified}{mode_and_session_type} | {aaa_user} ({aaa_session_id})  {time}"

[cli-engine]
type = "advanced"

[output-display-format]
value = "text"

[prompt]
value = "--{{ {modified}{mode_and_session_type} }}--[ {pwc} ]--\n{host}# "

[space-completion]
enabled = false

Save CLI environment settings to default configuration

The following example saves the current CLI environment settings to the default SR Linux configuration:

--{ candidate shared default}--[  ]--
# environment save home
Saved configuration to /root/.srlinuxrc

Load CLI environment settings from default

The following example loads CLI environment settings from the default SR Linux configuration:

--{ candidate shared default}--[  ]--
# environment load home
Loaded configuration from /root/.srlinuxrc

Save CLI environment settings to file

The following example saves the current CLI environment settings to a file:

--{ candidate shared default}--[  ]--
# environment save file env.cfg
Saved configuration to env.cfg

Load CLI environment settings from file

The following example loads CLI environment settings from a file:

--{ candidate shared default}--[  ]--
# environment load file env.cfg
Loaded configuration from env.cfg