Important: The commands or keywords/variables that are available are dependent on platform type, product version, and installed license(s).http { ad-filter display { no-text | text-only text_only_string | text-with-click text_with_click_string } | compression | optimize-compressed-page | params { ad-filter display bgcolor bg_color_code | compression level compression_level | url-rewrite prefix url_rewrite_prefix } | prevent-server-compression | url-rewrite }
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ad-filter display: none
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compression: Disabled
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optimize-compressed-page: Disabled
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ad-filter display bgcolor: FFFFFF
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url-rewrite prefix: urlrewrite
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prevent-server-compression: Disabled
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url-rewrite: Disabled
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no-text: Blocks advertisements. Mobile client users see the “cannot display image” icon (usually an X mark) instead of a blocked advertisement. Users cannot view the blocked advertisements even if they want to.
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text-only text_only_string: Blocks advertisements. Mobile client users will see a placeholder frame instead of each blocked advertisement. Each placeholder frame contains the text specified here along with the advertisement’s URL. Users cannot view the blocked advertisements even if they want to.
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text_only_string must be an alphanumeric string of 1 through 255 characters.
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text-with-click text_with_click_string: Blocks advertisements. Mobile client users will see a placeholder frame instead of each blocked advertisement. Each placeholder frame contains the text specified here along with the advertisement’s URL. To view the blocked advertisements, users must click the placeholder frames.
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text_with_click_string must be an alphanumeric string of 1 through 255 characters.
params { ad-filter display bgcolor bg_color_code | compression level compression_level | url-rewrite prefix url_rewrite_prefix }
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ad-filter display bgcolor bg_color_code: For the HTTP Advertisement Filter feature, specifies color code for the advertisement placeholder frames’ background.
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bg_color_code must be a string of 1 through 6 hexadecimal characters.
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compression level compression_level: Enables HTTP compression, and specifies the compression level.
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compression_level specifies the HTTP compression level, and must be an integer from 1 through 9. The higher the compression level, the better the compression but with a higher CPU and memory utilization.
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url-rewrite prefix url_rewrite_prefix: Enables HTTP URL rewrite, and specifies the HTTP URL rewrite prefix.
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url_rewrite_prefix specifies the HTTP URL rewrite prefix, and must be an alphanumeric string of 8 through 32 characters.
The URLs that are embedded in response pages are rewritten. This eliminates the need for the subscriber to perform DNS to resolve those URLs. See the url-rewrite option.
Default: continue-tpo
Important: In this release, only TPO TCP optimizations are disabled. Disabling HTTP optimizations will be supported in a future release.tcp { bandwidth { bandwidth_kbps | dynamic } | buffer-size { downlink | uplink } buffer_size_kb | congestion-control { basic | vegas | westwood-plus } | fast-retransmit-dupacks { duplicate_acks | dynamic } | handoff-optimization | initial-window { initial_window | dynamic bdp-percent bdp_percent | rfc5681 } | mss mss | pacing | rto { retrans-backoff { 1.0 | 1.5 | 2.0 } | rttvar-scaling scaling_factor } }
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bandwidth: No known bandwidth limit
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downlink: 128 KB
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uplink: 32 KB
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congestion-control: basic
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handoff-optimization: Disabled
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initial-window: rfc5681
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mss: 536 bytes
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pacing: Disabled
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rto:
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retrans-backoff: 2.0
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bandwidth_kbps specifies the maximum available bandwidth for a TCP flow, in kbps, and must be an integer from 1 through 100000.
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dynamic specifies the use of a value that is computed dynamically at runtime.
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Default: No known bandwidth limit, same as no tcp bandwidth command.
buffer-size { downlink | uplink } buffer_size_kb
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downlink: Specifies the maximum amount of data that can be buffered inside TCP Proxy in downlink direction for each TCP connection. When the amount of data buffered in TCP Proxy in downlink direction reaches this limit, TCP Proxy sets receive window size in TCP header to 0 towards TCP server.
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uplink: Specifies the maximum amount of data that can be buffered inside TCP Proxy in uplink direction for each TCP connection. When the amount of data buffered in TCP Proxy in uplink direction reaches this limit, TCP Proxy sets receive window size in TCP header to 0 towards TCP client.
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buffer_size_kb specifies the buffer size, in kilobytes, an must be an integer from 4 through 8192.
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basic: Use the basic TCP congestion-control algorithm.
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vegas: Use the Vegas TCP congestion-control algorithm.
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westwood-plus: Use the Westwood-plus TCP congestion-control algorithm.
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Default: basic
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duplicate_acks: Specifies the number of duplicate ACKs that will trigger a fast-retransmit of the missing segment. After the specified number of duplicate ACKs is received, it is assumed that the segment was lost and is retransmitted.
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duplicate_acks must be an integer from 1 through 10. Default: 3
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If the dynamic keyword is not configured, D-SACK detection takes place, but no action is taken.
Important: If the client does not support SACK, the behavior falls back to the behavior as described for earlier releases. For information on D-SACK Support, refer to the Traffic Performance Optimization Administration Guide.
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initial_window: Specifies the initial-window as Maximum Segment Size (MSS), and must be an integer from 1 through 255.
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dynamic bdp-percent bdp_percent: Use a dynamically computed value at runtime, that is calculated as a percentage of bandwidth-delay product (BDP).
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bdp_percent must be an integer from 1 through 100.
Bandwidth information is dynamically derived from the bandwidth command. The delay is calculated using the SYN-ACK exchange. If bandwidth information is not available, this configuration has no effect (behavior will be same as the default setting).
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rfc5681: Use a value recommended by RFC 5681, which will vary from 2 through 4 based on MSS.
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Default: rfc5681
mss mss
mss must be an integer from 248 through 65535.
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1.0: Use backoff factor 1.0.
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1.5: Use backoff factor 1.5.
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2.0: Use backoff factor 2.0.
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rttvar-scaling scaling_factor
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scaling_factor must be an integer from 0 through 4.
