I recently have experience in configuring a DELL PowerSwitch S4048-ON. It is 10/40GbE top-of-rack (ToR) switch built for applications in high performance data center and computing environments.
Dell’s OS9 (S & Z series) switches have a minimal differences from Cisco IOS. Many commands is similar. In this quick reference I want to share a basic commands you’ll need to rely on when handling various configuration and troubleshooting tasks. The output of something commands will included.
So, here is a list of basic CLI commands which will help you manage your DELL PowerConnect series switches.
You can use the command
? in many ways. First, use it when you don’t know what command to type.
For example, type
? At the command line for a list of all possible commands.
SWP_UP_10G>? clock Manage the system clock crypto Crypto Commands disable Turn off privileged commands dot1x 802.1x commands enable Turn on privileged commands ethernet Ethernet commands exit Exit from the EXEC fsck Filesystem check utility ip Global IP subcommands ipv6 Global IPv6 subcommands monitor Monitoring feature mtrace Trace reverse multicast path from destination to source package Automation package related commands ping Send echo messages quit Exit from the EXEC show Show running system information ssh Open a SSH connection ssh-peer-stack-unit Open a SSH connection to the peer stack-unit start Start shell support-assist SupportAssist service telnet Open a telnet connection telnet-peer-stack-unit Open a telnet connection to the peer stack-unit terminal Set terminal line parameters --More--
You can also use
? When don’t know what a command’s next parameter should be. For example, you might type
If the router requires no other parameters for the command, the router will offer
CR as the only option.
? at the prompt or after a keyword. There must always be a space before the
SWP_UP_10G(conf)#interface ? fortyGigE FortyGigabit Ethernet interface gigabitethernet Gigabit Ethernet interface group Configure interface group loopback Loopback interface managementethernet Management Ethernet interface null Null interface port-channel Port-channel interface range Configure interface range tengigabitethernet TenGigabit Ethernet interface tunnel Tunnel interface vlan VLAN interface
To see all commands that start with a particular letter. For example, show
SWP_UP_10G#c? cd clear clock configure copy crypto
Will return a list of commands that start with the letter
show running-config command shows the router, switch, or firewall’s current configuration.
The running-configuration is the config that is in the router’s memory.
You change this config when you make changes to the router.
Keep in mind that that config is not saved until you do copy it to startup.
SWP_UP_10G#show running-config Current Configuration ... ! Version 9.11(0.0P3) ! Last configuration change at Mon Feb 3 18:09:01 2020 by admin ! boot system stack-unit 1 primary system: A: boot system stack-unit 1 secondary system: B: boot system stack-unit 1 default system: A: ! logging coredump stack-unit 1 logging coredump stack-unit 2 logging coredump stack-unit 3 logging coredump stack-unit 4 logging coredump stack-unit 5 logging coredump stack-unit 6 ! hostname SWP_UP_10G ! --More--
copy running-config startup-config
This command will save the configuration that is currently being modified (in RAM),
also known as the running-configuration, to the nonvolatile RAM (NVRAM).
If the power is lost, the NVRAM will preserve this configuration.
In other words, if you edit the router’s configuration, don’t use this command and reboot the router–those changes will be lost.
This command can be abbreviated
copy run start.
SWP_UP_10G#copy running-config startup-config
The DELL switch like Cisco has different command modes with distinctive prompts. These modes execute different switch commands. Each mode has a set of specific commands.
To navigate and launch various CLI modes, use specific commands
Prompt CLI Command Mode Dell> EXEC Dell# EXEC Privilege Dell(conf)# CONFIGURATION
Enter EXEC Privilege mode or any other privilege level configured -
After entering this command, you may need to enter a password.
SWP_UP_10G>enable Password: SWP_UP_10G#
Enter CONFIGURATION mode from EXEC Privilege mode -
Return to the lower command mode -
do command allows the execution of most EXEC-level commands from all CONFIGURATION levels without returning to the EXEC level.
SWP_UP_10G(conf)#do show clock 23:13:55.661 UTC Sat Jul 18 2020
Display a buffered log of all commands all users enter along with a time stamp
Some useful information about Software version and device.
Display the current Dell Networking Operating System (OS) version information on the system -
SWP_UP_10G#show version Dell Real Time Operating System Software Dell Operating System Version: 2.0 Dell Application Software Version: 9.11(0.0P3) Copyright (c) 1999-2017 by Dell Inc. All Rights Reserved. Build Time: Fri Jan 27 10:54:03 2017 Build Path: /build/build02/SW/SRC Dell Networking OS uptime is 6 week(s), 1 day(s), 23 hour(s), 13 minute(s) System image file is "system://A" System Type: S4048-ON Control Processor: Intel Rangeley with 3 Gbytes (3201302528 bytes) of memory, core(s) 2. 8G bytes of boot flash memory. 1 54-port TE/FG (SK-ON) 48 Ten GigabitEthernet/IEEE 802.3 interface(s) 6 Forty GigabitEthernet/IEEE 802.3 interface(s)
Display information on a specific physical interface or virtual interface.
SWP_UP_10G#show interfaces tengigabitethernet 1/1 TenGigabitEthernet 1/1 is up, line protocol is up Description: Hardware is DellEth, address is 14:18:77:80:11:00 Current address is 14:18:77:80:11:00 Pluggable media present, SFP+ type is 10GBASE-SR Medium is MultiRate, Wavelength is 850nm SFP+ receive power reading is -2.7344dBm SFP+ transmit power reading is -2.2105dBm Interface index is 2097156 Internet address is not set Mode of IPv4 Address Assignment : NONE DHCP Client-ID :1418778022e1 MTU 1554 bytes, IP MTU 1500 bytes LineSpeed 10000 Mbit Flowcontrol rx off tx off ARP type: ARPA, ARP Timeout 04:00:00 Last clearing of "show interface" counters 6w1d23h Queueing strategy: fifo Input Statistics: 12063517275 packets, 16273367119685 bytes 452219597 64-byte pkts, 3344945 over 64-byte pkts, 123343574 over 127-byte pkts 994638054 over 255-byte pkts, 4755930 over 511-byte pkts, 10485215175 over 1023-byte pkts 0 Multicasts, 6533 Broadcasts, 12063510742 Unicasts
To display status information on a specific interface only, display a summary of interface information or specify a stack-unit slot and interface.
SWP_UP_10G#show interfaces status Port Description Status Speed Duplex Vlan Te 1/1 Up 10000 Mbit Full 3 Te 1/2 Up 10000 Mbit Full 3 Te 1/3 Up 10000 Mbit Full 3 Te 1/4 Up 10000 Mbit Full 3 Te 1/5 Up 10000 Mbit Full 3 Te 1/6 Up 10000 Mbit Full 3 Te 1/7 Up 10000 Mbit Full 3 --More--
Monitor counters on a single interface or all interfaces. The screen is refreshed every five seconds and the CLI prompt disappears.
SWP_UP_10G#monitor interface te 1/1 Interface: Te 1/1, Enabled, Link is Up, Linespeed is 10000 Mbit Traffic statistics: Current Rate Delta Input bytes: 16273367122653 0 Bps 0 Output bytes: 13745541955640 0 Bps 0 Input packets: 12063517303 0 pps 0 Output packets: 10342234622 0 pps 0 64B packets: 452219597 0 pps 0 Over 64B packets: 3344973 0 pps 0 Over 127B packets: 123343574 0 pps 0 Over 255B packets: 994638054 0 pps 0 Over 511B packets: 4755930 0 pps 0 Over 1023B packets: 10485215175 0 pps 0 Error statistics: Input underruns: 0 0 pps 0 Input giants: 0 0 pps 0 Input throttles: 0 0 pps 0 Input CRC: 0 0 pps 0 Input IP checksum: 0 0 pps 0 Input overrun: 0 0 pps 0 Output underruns: 0 0 pps 0 Output throttles: 0 0 pps 0 m - Change mode c - Clear screen l - Page up a - Page down T - Increase refresh interval t - Decrease refresh interval q - Quit
show ip interface
The command provides useful information about the configuration and status of the IP protocol and its services, on all interfaces, including their IP address, Layer 2 status, and Layer 3 status.
SWP_UP_10G#show ip interface TenGigabitEthernet 1/1 is up, line protocol is up Description: Internet address is not set IP MTU is 1500 bytes Directed broadcast forwarding is disabled Proxy ARP is enabled Split Horizon is enabled Poison Reverse is disabled ICMP redirects are not sent ICMP unreachables are not sent IP unicast RPF check is not supported --More--
Configure a physical or virtual interface on the switch.
SWP_UP_10G#conf SWP_UP_10G(conf)#interface tengigabitethernet 1/1 SWP_UP_10G(conf-if-te-1/1)#
Before configuring should be useful view a current settings for the interface
SWP_UP_10G(conf-if-te-1/1)#show config ! interface TenGigabitEthernet 1/1 no ip address switchport no shutdown
To disable, delete or return to default values, use the
no form of the commands.
no shutdown command enables an interface (brings it up).
This command must be used in
interface configuration mode.
It is useful for new interfaces and for troubleshooting.
When you’re having trouble with an interface, you may want to try a
arp & mac table
For displaying the ARP table use
show arp or
show arp interface te 1/1 for specific interface.
SWP_UP_10G#show arp Protocol Address Age(min) Hardware Address Interface VLAN CPU --------------------------------------------------------------------------------------------- Internet 172.16.1.1 6 64:00:6a:d8:00:00 Po 1 Vl 4 CP Internet 172.16.1.2 - 14:18:77:80:00:01 - Vl 4 CP Internet 172.16.1.3 0 a0:36:9f:d8:00:02 Po 1 Vl 4 CP
Display the MAC address table.
SW_DWN_1G#show mac-address-table Codes: *N - VLT Peer Synced MAC *I - Internal MAC Address used for Inter Process Communication VlanId Mac Address Type Interface State 3 00:0c:29:41:01:00 Dynamic Gi 1/9 Active 3 00:0c:29:dd:01:00 Dynamic Gi 1/9 Active 3 00:1e:67:f0:02:00 Dynamic Gi 1/40 Active --More--
Display the current VLAN configurations on the switch -
SWP_UP_10G#show vlan Codes: * - Default VLAN, G - GVRP VLANs, R - Remote Port Mirroring VLANs, P - Primary, C - Community, I - Isolated O - Openflow, Vx - Vxlan Q: U - Untagged, T - Tagged x - Dot1x untagged, X - Dot1x tagged o - OpenFlow untagged, O - OpenFlow tagged G - GVRP tagged, M - Vlan-stack i - Internal untagged, I - Internal tagged, v - VLT untagged, V - VLT tagged NUM Status Description Q Ports * 1 Inactive 3 Active C-MGMT T Po1(Te 1/47-1/48) 4 Active C-DATA T Po1(Te 1/47-1/48) U Te 1/1-1/28,1/30-1/46
Display the current clock settings.
SWP_UP_10G#show clock detail 18:04:16.792 UTC Mon Feb 3 2020 Time source is RTC hardware
In summary, the key differences between Dell and Cisco are the approach they take to where the untagging and tagging happens (Cisco: interface, Dell: VLAN), how the trunks allow VLANs and how dell OS9 does not have any form of Spanning tree by default. But other than that the CLI commands are very similar and any engineer familiar with Cisco will no problem using Dell OS9.
- Cisco Commands Cheat Sheet - cisco commands in one page
- Dell Command Line Reference Guide for the S4048–ON System 22.214.171.124 - dell man page included full command list
- DELL EMC NETWORKING S4048-ON SWITCH - dell spec sheet for S4048–ON switch