Table Of Contents

G Commands

group

gzip

gunzip

G Commands

---

The commands in this chapter apply to the Cisco MDS 9000 Family of multilayer directors and fabric switches. All commands are shown here in alphabetical order regardless of command mode. See "About the CLI Command Modes" section on page 1-3 to determine the appropriate mode for each command. For more information, refer to the Cisco MDS 9000 Family CLI Configuration Guide.

group

To configure a Modular Exponentiation (MODP) Diffie-Hellman (DH) group for an IKE protocol policy, use the group command in IKE policy configuration submode. To revert to the default, use the no form of the command.

group {1 | 2 | 5}

no group

Syntax Description

1	Specifies 768-bit MODP DH group.
2	Specifies 1024-bit MODP DH group.
5	Specifies 1536-bit MODP DH group.

Defaults

1.

Command Modes

IKE policy configuration submode.

Command History

Release	Modification
2.0(x)	This command was introduced.

Usage Guidelines

To use this command, the IKE protocol must be enabled using the crypto ike enable command.

Examples

The following example shows how to configure the DH group for the IKE protocol:

switch# config terminal

switch(config)# crypto ike domain ipsec

switch(config-ike-ipsec)# policy 1

switch(config-ike-ipsec-policy)# group 1

Related Commands

Command	Description
crypto ike domain ipsec	Enters IKE configuration mode.
crypto ike enable	Enables the IKE protocol.
policy	Configures IKE policy parameters.
show crypto ike domain ipsec	Displays IKE information for the IPsec domain.

gzip

To compress (zip) a specified file using LZ77 coding, use the gzip command in EXEC mode.

gzip {bootflash: | slot0: | volatile:} filename

Syntax Description

bootflash:	Source location for the file to be compressed and destination of the compressed file.
slot0:	Source location for the file to be compressed and destination of the compressed file.
volatile:	Source location for the file to be compressed and destination of the compressed file.This is the default directory.
filename	The name of the file to be compressed.

Defaults

None.

Command Modes

EXEC mode.

Command History

Release	Modification
1.1(1)	This command was introduced.

Usage Guidelines

This command is useful in compressing large files. The output of the show tech-support command can directed to a file and compressed for further use. The gzip command replaces the source file with a compressed .gz file.

Examples

This example directs the output of the show tech-support command to a file (Samplefile) and then zips the file and displays the difference in the space used up in the volatile: directory:

switch# show tech-support > Samplefile

Building Configuration ...

switch# dir

    1525859     Jul 04 00:51:03 2003  Samplefile

Usage for volatile://

    1527808 bytes used

   19443712 bytes free

   20971520 bytes total

switch# gzip volatile:Samplefile

switch# dir

     266069     Jul 04 00:51:03 2003  Samplefile.gz

Usage for volatile://

     266240 bytes used

   20705280 bytes free

   20971520 bytes total

Related Commands

Command	Description
gunzip	Uncompresses LZ77 coded files.

gunzip

To uncompress (unzip) LZ77 coded files, use the gunzip command in EXEC mode.

gunzip {bootflash: | slot0: | volatile:} filename

Syntax Description

bootflash:	Source location for the compressed file and destination of the uncompressed file.
slot0:	Source location for the compressed file and destination of the uncompressed file.
volatile:	Source location for the compressed file and destination of the uncompressed file. This is the default directory.
filename	The name of the compressed file.

Defaults

None.

Command Modes

EXEC mode.

Command History

Release	Modification
1.1(1)	This command was introduced.

Usage Guidelines

This command is useful in uncompressing large files. The gunzip command replaces the compressed.gz source file with an uncompressed file.

Examples

This example unzips a compressed file on volatile: directory and displays the space used:

switch# dir

     266069     Jul 04 00:51:03 2003  Samplefile.gz

Usage for volatile://

     266240 bytes used

   20705280 bytes free

   20971520 bytes total

switch# gunzip Samplefile

switch# dir

    1525859     Jul 04 00:51:03 2003 Samplefile

Usage for volatile://

    1527808 bytes used

   19443712 bytes free

   20971520 bytes total

Related Commands

Command	Description
gzip	Compresses a specified file using LZ77 coding.