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Dell Configuration Guide for the S4048–ON System 9.14.2.5

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Compressing Configuration Files

You can optimize and reduce the sizes of the configuration files.

You can compress the running configuration by grouping all the VLANs and the physical interfaces with the same property. Support to store the operating configuration to the startup config in the compressed mode and to perform an image downgrade without any configuration loss are provided.

You can create groups of VLANs using the interface group command. This command will create nonexistent VLANs specified in a range. On successful command execution, the CLI switches to the interface group context. The configuration commands inside the group context will be the similar to that of the existing range command.

Two existing exec mode CLIs are enhanced to display and store the running configuration in the compressed mode.

show running-config compressed and write memory compressed

The compressed configuration will group all the similar looking configuration thereby reducing the size of the configuration. For this release, the compression will be done only for interface related configuration (VLAN & physical interfaces)

The following table describes how the standard and the compressed configuration differ:

Table 1. Standard and Compressed Configurations Standard and Compressed Configurations
Uncompressed Compressed

DellEMC# show running-config

<snip>

!

interface TenGigabitEthernet 1/1

no ip address

switchport

shutdown

!

interface TenGigabitEthernet 1/2

no ip address

shutdown

!

interface TenGigabitEthernet 1/3

no ip address

shutdown

!

interface TenGigabitEthernet 1/4

no ip address

shutdown

!

interface TenGigabitEthernet 1/10

no ip address

shutdown

!

interface TenGigabitEthernet 1/34

ip address 2.1.1.1/16

shutdown

!

interface Vlan 2

no ip address

no shutdown

!

interface Vlan 3

tagged te 1/1

no ip address

shutdown

!

interface Vlan 4

tagged te 1/1

no ip address

shutdown

!

interface Vlan 5

tagged te 1/1

no ip address

shutdown

!

interface Vlan 100

no ip address

no shutdown

!

interface Vlan 1000

ip address 1.1.1.1/16

no shutdown

Uncompressed config size – 52 lines

DellEMC# show running-config compressed

<snip>

!

interface TenGigabitEthernet 1/1

no ip address

switchport

shutdown

!

Interface group TenGigabitEthernet 1/2 – 4 , TenGigabitEthernet 1/10

no ip address

shutdown

!

interface TenGigabitEthernet 1/34

ip address 2.1.1.1/16

shutdown

!

interface group Vlan 2 , Vlan 100

no ip address

no shutdown

!

interface group Vlan 3 – 5

tagged te 1/1

no ip address

shutdown

!

interface Vlan 1000

ip address 1.1.1.1/16

no shutdown

!

<snip>

Compressed config size – 27 lines.

write memory compressed

The write memory compressed CLI will write the operating configuration to the startup-config file in the compressed mode. In stacking scenario, it will also take care of syncing it to all the standby and member units.

The following is the sample output:

DellEMC#write memory compressed
!
Jul 30 08:50:26: %STKUNIT0-M:CP %FILEMGR-5-FILESAVED: Copied running-config to startup-config in flash by default

copy compressed-config

Copy one file, after optimizing and reducing the size of the configuration file, to another location. Dell EMC Networking OS supports IPv4 and IPv6 addressing for FTP, TFTP, and SCP (in the hostip field).


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