configuration is considered valid. The comma-separated list is not required to be separated by spaces in between the ranges. You canassociate multicast MAC or hardware addresses to an interface range and VLANs by using the mac-address-table staticmulticast-mac-address vlan vlan-id output-range interface command.Compressing Configuration FilesYou 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 tostore the operating configuration to the startup config in the compressed mode and to perform an image downgrade without anyconfiguration loss are provided.You can create groups of VLANs using the interface group command. This command will create nonexistent VLANs specified in arange. On successful command execution, the CLI switches to the interface group context. The configuration commands inside the groupcontext 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 compressedThe 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 40. Standard and Compressed Configurationsint vlan 2no ip addressno shutint vlan 3tagged te 1/1/1/1no ip addressshutint vlan 4tagged te 1/1/1/1no ip addressshutint vlan 5tagged te 1/1/1/1no ip addressshutint vlan 100no ip addressno shutint vlan 1000ip address 1.1.1.1/16no shutint te 1/1/1/1no ip addressswitchportshutint te 1/1/1/2no ip addressshutint te 1/1/1/3no ip addressshutint te 1/1/1/4no ip addressshutint te 1/1/5/1no ip addressshutint te 1/1/6/1ip address 2.1.1.1/16shutDell# show running-config!interface TenGigabitEthernet 1/1/1/1no ip addressswitchportshutdown!interface TenGigabitEthernet 1/1/1/2Dell# show running-config compressed!interface TenGigabitEthernet 1/1/1/1no ip addressswitchportshutdown!Interface group TenGigabitEthernet 1/1/2/1 – 1/1/2/4 ,TenGigabitEthernet 1/1/7/1Interfaces 411
