Contents

Web caching commands· 1

cached-data· 1

cache-limit 2

display web-cache· 3

file-directory· 6

http enable· 7

listen-port 8

object-group· 9

web-cache· 10

 

Web caching commands

cached-data

Use cached-data to specify the types of the webpage files to be cached.

Use undo cached-data to restore the default.

Syntax

cached-data { apk | bmp | doc | docx | gif | gzip | ipa | jar | jpg | jpeg | mp4 | pdf | png | ppt | pptx | rar | swf | tar | txt | xls | xlsx | zip } *

undo cached-data

Default

No webpage file types are specified.

Views

Web cache view

Predefined user roles

network-admin

mdc-admin

Parameters

apk: Specifies .apk files.

bmp: Specifies .bmp files.

doc: Specifies .doc files.

docx: Specifies .docx files.

gif: Specifies .gif files.

gzip: Specifies .gzip files.

ipa: Specifies .ipa files.

jar: Specifies .jar files.

jpg: Specifies .jpg files.

jpeg: Specifies .jpeg files.

mp4: Specifies .mp4 files.

pdf: Specifies .pdf files.

png: Specifies .png files.

ppt: Specifies .ppt files.

pptx: Specifies .pptx files.

rar: Specifies .rar files.

swf: Specifies .swf files.

tar: Specifies .tar files.

txt: Specifies .txt files.

xls: Specifies .xls files.

xlsx: Specifies .xlsx files.

zip: Specifies .zip files.

Usage guidelines

If you do not specify the types of the webpage files to be cached, the Web caching feature does not cache any types of files on webpages.

Execute this command before enabling Web caching.

Before configuring or modifying file type settings, you must disable Web caching. After configuring or modifying file type settings, enable Web caching again.

Examples

# (In standalone mode.) Configure the Web caching feature to cache .doc and .docx files on webpages.

<Sysname> system-view

[Sysname] web-cache slot 1

[Sysname-web-cache-slot1] cached-data doc docx

# (In IRF mode.) Configure the Web caching feature to cache .doc and .docx files on webpages.

<Sysname> system-view

[Sysname] web-cache chassis 1 slot 1

[Sysname-web-cache-chassis1-slot1] cached-data doc docx

Related commands

http enable

cache-limit

Use cache-limit to set the maximum total size for Web cache files.

Use undo cache-limit to restore the default.

Syntax

cache-limit size

undo cache-limit

Default

The maximum total size of Web cache files is 4 GB.

Views

Web cache view

Predefined user roles

network-admin

mdc-admin

Parameters

size: Specifies the maximum total size for Web cache files in GB. The value range is 1 to 4095. The default is 4.

Usage guidelines

Before changing the maximum total file size setting, you must disable Web caching. After changing the maximum total file size setting, enable Web caching again.

The specified maximum total size for Web cache files must be less than the maximum storage space size in the working directory. To display the maximum size of storage space in the working directory, execute the display web-cache command. After the maximum total size is reached, the device deletes the oldest Web cache file to save the new Web cache file.

The aging time for Web cache files is fixed at 30 days. When the device reboots or receives a request for the contents in a Web cache file, it restarts the aging timer. If no users request the contents in a file before the aging timer expires, the device deletes the file.

Examples

# (In standalone mode.) Set the maximum total size for Web cache files to 3 GB.

<Sysname> system-view

[Sysname] web-cache slot 1

[Sysname-web-cache-slot1] cache-limit 3

# (In IRF mode.) Set the maximum total size for Web cache files to 3 GB.

<Sysname> system-view

[Sysname] web-cache chassis 1 slot 1

[Sysname-web-cache-chassis1-slot1] cache-limit 3

display web-cache

Use display web-cache to display Web caching information.

Syntax

display web-cache [ history ] [ last { day | 30-days | 365-days | hour | minute | week } | verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

history: Displays history information. If you do not specify this keyword, the command displays the current statistics, which is collected at 1-second intervals.

last: Displays statistics for a specific period of time in the past. If you do not specify this keyword, the command displays the current statistics and the statistics for specific periods of time in the past.

minute: Displays statistics for the most recent one minute.

hour: Displays statistics for the most recent one hour.

day: Displays statistics for the most recent one day.

week: Displays statistics for the most recent one week.

30-days: Displays statistics for the most recent 30 days.

365-days: Displays statistics for the most recent 365 days.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

Examples

# Display the current Web caching statistics.

<Sysname> display web-cache history

Date TimeRange ConnectTop CacheTop BandwidthSaved CacheHitRate

2018/06/20 14:43:02-14:43:03 3 16.0KB 0 0%

2018/06/20 14:43:01-14:43:02 3 16.0KB 96.0Kbps 100%

# Display all Web caching information.

<Sysname> display web-cache

Web-cache configurations

  Cache path: flash:/var/web-cache/proxy/cache

  Max connections: 1022

  Max cache size: 3GB

 

Current state information

  Cache memory: 0

  Cache count: 0

 

Statistics for past 1 minute

  ConnectTop: 2

  CacheTop: 0

  Bandwidth saved:                      0

  Cached data transmission speed:       0

  Cached data transmitted:              0

  Download speed:                       0

  Download size:                        0

  CacheHitRate: 0%

    Hit count: 0                     Miss count: 0

 

Statistics for past 1 hour

  ConnectTop: 2

  CacheTop: 0

  Bandwidth saved:                      0

  Cached data transmission speed:       0

  Cached data transmitted:              0

  Download speed:                       0

  Download size:                        0

  CacheHitRate: 0%

    Hit count: 0                     Miss count: 0

 

Statistics for past 1 day

  ConnectTop: 2

  CacheTop: 463.4MB

  Bandwidth saved:                      0

  Cached data transmission speed:       0

  Cached data transmitted:              0

  Download speed:                       0

  Download size:                        0

  CacheHitRate: 0%

    Hit count: 0                     Miss count: 0

 

Statistics for past 30 days

  ConnectTop: 2

  CacheTop: 463.4MB

  Bandwidth saved:                      0

  Cached data transmission speed:       0

  Cached data transmitted:              0

  Download speed:                       0

  Download size:                        0

  CacheHitRate: 0%

    Hit count: 0                     Miss count: 0

 

Statistics for past 365 days

  ConnectTop: 2

  CacheTop: 463.4MB

  Bandwidth saved:                      0

  Cached data transmission speed:       120 Kbps

  Cached data transmitted:              400MB

  Download speed:                       0

  Download size:                        0

  CacheHitRate: 0%

    Hit count: 0                     Miss count: 0

# Display detailed history Web caching statistics.

<Sysname> display web-cache history verbose

2018/06/05 09:02:47-09:02:48

  ConnectTop: 2

  CacheTop: 0

  Bandwidth saved:                      0

  Cached data transmission speed:       0

  Cached data transmitted:              0

  Download speed:                       0

  Download size:                        0

  CacheHitRate: 0%

    Hit count: 0                     Miss count: 0

2018/06/05 09:02:46-09:02:47

  ConnectTop: 2

  CacheTop: 0

  Bandwidth saved:                      0

  Cached data transmission speed:       0

  Cached data transmitted:              0

  Download speed:                       0

  Download size:                        0

  CacheHitRate: 0%

    Hit count: 0                     Miss count: 0

Table 1 Command output

Field	Description
Cache path	Web cache directory.
Max connections	Maximum number of connections allowed.
Max cache size	Current maximum storage space size.
Cache memory	Current total size of Web cache files.
Cache count	Number of Web cache files.
ConnectTop	Maximum number of connections during the specified period of time.
CacheTop	Maximum total size of Web cache files during the specified period of time, in KB, MB, GB, or TB.
Bandwidth saved	Reduced bandwidth during the specified period of time, in Kbps, Mbps, Gbps, or Tbps.
Cached data transmission speed	Speed at which cached data was transferred to users during the specified period of time, in Kbps, Mbps, Gbps, or Tbps.
Cached data transmitted	Amount of cached data that was transferred to users during the specified period of time, , in KB, MB, GB, or TB.
Download speed	Speed at which cached data was downloaded from Web servers during the specified period of time, in Kbps, Mbps, Gbps, or Tbps.
Download size	Amount of cached data that was downloaded from Web servers during the specified period of time, in KB, MB, GB, or TB.
CacheHitRate	Percentage of hits of cached data.
Hit count	Number of hits of cached data.
Miss count	Number of times that cached data was not matched.

 

file-directory

Use file-directory to set the Web cache directory.

Use undo file-directory to restore the default.

Syntax

file-directory directory

undo file-directory

Default

The Web cache directory is not configured.

Views

Web cache view

Predefined user roles

network-admin

mdc-admin

Parameters

directory: Specifies the Web cache directory, starting from the storage medium location information slotn#. The slot number n must be the same as the slot number of the Web cache view. (In standalone mode.)

directory: Specifies the Web cache directory, starting from the storage medium location information chassismslotn#. The chassis number m and slot number n must be the same as the chassis number and slot number of the Web cache view. (In IRF mode.)

Usage guidelines

Before modifying Web caching parameters, you must disable Web caching first. After modifying Web caching parameters, enable Web caching again.

Before setting the Web cache directory, verify that the parent directory does not have a file without an extension that uses the same name as the Web cache directory. For example, to set the Web cache directory to flash:/web-cache, the flash:/ directory  have a file without an extension that is named web-cache. If this requirement is not met, Web caching cannot operate correctly.

The Web caching feature saves Web contents to be cached to files in the Web cache directory. Typically, the files use a lot of storage space (over 1 GB). As a best practice, specify a directory on a storage medium that has sufficient storage space.

The Web cache directory also stores the Web caching operating data.

 

Examples

# (In standalone mode.) Set the Web cache directory.

<Sysname> system-view

[Sysname] web-cache slot 1

[Sysname-web-cache-slot1] file-directory slot1#flash:/aaa

# (In IRF mode.) Set the Web cache directory.

<Sysname> system-view

[Sysname] web-cache chassis 1 slot 1

[Sysname-web-cache-chassis1-slot1] file-directory chassis1#slot1#flash:/aaa

http enable

Use http enable to enable Web caching.

Use undo http enable to disable Web caching.

Syntax

http enable

undo http enable

Default

Web caching is disabled.

Views

Web cache view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

Before enabling Web caching, you must configure the following Web caching parameters:

·     Types of the webpage files to be cached.

·     Web cache directory.

·     Web caching listening port number.

Examples

# (In standalone mode.) Enable Web caching.

<Sysname> system-view

[Sysname] web-cache slot 1

[Sysname-web-cache-slot1] http enable

# (In IRF mode.) Enable Web caching.

<Sysname> system-view

[Sysname] web-cache chassis 1 slot 1

[Sysname-web-cache-chassis1-slot1] http enable

Related commands

cached-data

listen-port

listen-port

Use listen-port to specify the Web caching listening port number.

Use undo listen-port to restore the default.

Syntax

listen-port port-number

undo listen-port

Default

The Web caching listening port number is 80.

Views

Web cache view

Predefined user roles

network-admin

Parameters

port-number: Specifies a TCP port number in the range of 1 to 65535.

Usage guidelines

If you do not specify the Web caching listening port number, the Web caching feature does not operate.

Make sure the specified TCP port number is not being used by any other services on the device. To display TCP port numbers being used, execute the display tcp verbose command.

Execute this command before enabling Web caching.

Before changing the listening port setting, you must disable Web caching. After changing the listening port setting, enable Web caching again.

Examples

# (In standalone mode.) Set the Web caching listening port number to 655.

<Sysname> system-view

[Sysname] web-cache slot 1

[Sysname-web-cache-slot1] listen-port 655

# (In IRF mode.) Set the Web caching listening port number to 655.

<Sysname> system-view

[Sysname] web-cache chassis 1 slot 1

[Sysname-web-cache-chassis1-slot1] listen-port 655

Related commands

http enable

object-group

Use object-group to specify an IPv4 object group used to filter Web content to be cached.

Use undo object-group to remove an IPv4 object group used to filter Web content to be cached.

Syntax

object-group [ source ] ip object-group-name

undo object-group [ source ]

Default

No IPv4 object group is specified for filtering Web content. The Web caching feature caches webpage content from all Web servers.

Views

Web cache view

Predefined user roles

network-admin

mdc-admin

Parameters

source: Caches Web content requested by specific Web clients. If you do not specify this keyword, the Web caching feature caches Web content from specific Web servers.

ip: Uses an IPv4 object group to specify Web clients or Web servers. For more information about IPv4 object groups, see Security Configuration Guide.

object-group-name: Specifies an IPv4 object group by its name, a case-insensitive string of 1 to 31 characters.

Usage guidelines

Use this command to configure the Web caching feature to cache only Web content requested by specific Web clients or sent from specific Web servers.

This command requires the cooperation of the IPv4 object group feature. For more information about the IPv4 object group feature, see object group configuration in Security Configuration Guide.

Execute this command before enabling Web caching.

Before changing the IPv4 object group setting, you must disable Web caching. After changing the IPv4 object group setting, enable Web caching again.

Examples

# (In standalone mode.) Configure the Web caching feature to cache only Web content from Web servers specified by IPv4 object group aaa.

<Sysname> system-view

[Sysname] web-cache slot 1

[Sysname-web-cache-slot1] object-group aaa

# (In IRF mode.) Configure the Web caching feature to cache only Web content from Web servers specified by IPv4 object group aaa.

<Sysname> system-view

[Sysname] web-cache chassis 1 slot 1

[Sysname-web-cache-chassis1-slot1] object-group aaa

Related commands

object-group (Security Command Reference)

web-cache

Use web-cache to create a Web cache view and enter its view, or enter an existing Web cache view.

Use undo web-cache to delete a Web cache view and all settings in the view.

Syntax

In standalone mode:

web-cache slot slot-number

undo web-cache slot

In IRF mode:

web-cache chassis chassis-number slot slot-number

undo web-cache chassis

Default

No Web cache views exist.

Views

System view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies a card by its slot number. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. (In IRF mode.)

Examples

# (In standalone mode.) Create a Web cache view and enter its view.

<Sysname> system-view

[Sysname] web-cache slot 1

[Sysname-web-cache-slot1]

# (In IRF mode.) Create a Web cache view and enter its view.

<Sysname> system-view

[Sysname] web-cache chassis 1 slot 1

[Sysname-web-cache-chassis1-slot1]