ADC Advanced Policy Expressions

STREAM_T


Stream

This topic lists the expressions that are provided by this class.

  • BANDWIDTH

    Returns the bandwidth on an object.

Returns: unsigned_long_at

CHECK_BREACH_THRESHOLD (stream_transaction_track_mode_e mode)

Returns true if an object corresponding to the stream identifier has hit maximum breaching transactions threshold. Transaction Tracking needs to be enabled in stream identifier configuration to use this expression. Transaction Tracking mode: RESPONSE TIME in milli seconds. add stream identifier sid -interval 5 -tracktransactions RESPTIME -maxTransactionThreshold 100 -BreachThreshold 10 Expression: ANALYTIC.STREAM("sid").CHECK_BREACH_THRESHOLD(RESPONSE_TIME)

Parameters (expressions not allowed):

            mode- CHECK BREACH mode

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, ip_address_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(BANDWIDTH, 100000) Note: maxthreshold should always be greater than 0.

Parameters (expressions not allowed):

            mode- Check Limit mode

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, num_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(BANDWIDTH, 100000) Note: maxthreshold should always be greater than 0.

Parameters (expressions not allowed):

            mode- Check Limit mode

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, time_local_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(BANDWIDTH, 100000) Note: maxthreshold should always be greater than 0.

Parameters (expressions not allowed):

            mode- Check Limit mode

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, time_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(BANDWIDTH, 100000) Note: maxthreshold should always be greater than 0.

Parameters (expressions not allowed):

            mode- Check Limit mode

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, unsigned_long_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(BANDWIDTH, 100000) Note: maxthreshold should always be greater than 0.

Parameters (expressions not allowed):

            mode- Check Limit mode

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, ip_address_at minthreshold, ip_address_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, ip_address_at minthreshold, num_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, ip_address_at minthreshold, time_local_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, ip_address_at minthreshold, time_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, ip_address_at minthreshold, unsigned_long_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, num_at minthreshold, ip_address_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, num_at minthreshold, num_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, num_at minthreshold, time_local_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, num_at minthreshold, time_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, num_at minthreshold, unsigned_long_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, time_local_at minthreshold, ip_address_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, time_local_at minthreshold, num_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, time_local_at minthreshold, time_local_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, time_local_at minthreshold, time_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, time_local_at minthreshold, unsigned_long_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, time_at minthreshold, ip_address_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, time_at minthreshold, num_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, time_at minthreshold, time_local_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, time_at minthreshold, time_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, time_at minthreshold, unsigned_long_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, unsigned_long_at minthreshold, ip_address_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, unsigned_long_at minthreshold, num_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, unsigned_long_at minthreshold, time_local_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, unsigned_long_at minthreshold, time_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

CHECK_LIMIT (stream_mode_e mode, unsigned_long_at minthreshold, unsigned_long_at maxthreshold)

Returns true if an object corresponding to the stream identifier has hit the limit parameter. mode: BANDWIDTH in kbps, RESPONSE TIME in milli seconds, REQUEST RATE in Requests/second, CONNECTIONS i.e. Total Active Connections. add stream identifier sid -interval 5 Expression: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 1000) Note: maxthreshold and minthreshold cannot be negative. maxthreshold cannot be less than minthreshold. Note: If maxthreshold is 0, then max threshold is not applied. minthreshold and maxthreshold cannot both be zero. Example: ANALYTIC.STREAM("sid").check_limit(REQUEST_RATE, 10, 0) Above expression returns true only if Request Rate is less than 10 requests per second. There is no upper limit here.

Parameters (expressions not allowed):

            mode- Check Limit Mode

            minthreshold- Check Limit min threshold

            maxthreshold- Check Limit maximum threshold

Returns: bool_at

  • COLLECT_STATS

    Returns true if statistics collection on an object was successful.

Returns: bool_at

COLLECT_STATS (uint amplification_factor)

Returns true if statistics collection on an object was successful.

Parameters (expressions not allowed):

            amplification_factor- Amplification factor

Returns: bool_at

COLLECT_STATS (text_t mode, uint max_threshold, stream_action_e action)

Returns true if statistics collection on an object was successful. This expression is used to rate limit connections per packet level. When an object/connection corresponding to the stream identifier has received more than configured percentage (max_threshold) of bad packets, configured action is triggered. add stream identifier packetcreditrateidentifier packetcreditrateselector -interval 1 add responder policy packetcreditratesessionpolicy "ANALYTICS.STREAM(\"packetcreditrateidentifier\").COLLECT_STATS(\"PACKET_CREDITS\", 75, RESET)" NOOP Valid mode: PACKET_CREDITS Valid action: RESET/DROP Valid max_threshold: 0-100

Parameters (expressions not allowed):

            mode- stream mode

            max_threshold- maximum threshold percentage of bad packets.

            action- Action

Returns: bool_at

COLLECT_STATS (text_t mode, uint max_threshold, stream_action_e action, uint type)

Returns true if statistics collection on an object was successful. This expression is used to rate limit packets per second. When an object/connection corresponding to the stream identifier has received more than configured (max_threshold) number of packets, configured action is triggered. add stream identifier packetrateidentifier packetrateselector -interval 1 add responder policy packetratesessionpolicy "ANALYTICS.STREAM(\"packetrateidentifier\").COLLECT_STATS(\"PACKET_LIMIT\", 5000, RESET, 1)" NOOP Valid mode: PACKET_LIMIT Valid action: RESET/DROP Valid max_threshold: strictly greater than zero. Valid type: 0/1 0 for bursty 1 for smooth

Parameters (expressions not allowed):

            mode- stream mode

            max_threshold- maximum threshold of packets per second.

            action- Action

            type- rate limiting type like smooth/bursty.

Returns: bool_at

  • CONNECTIONS

    Returns the number of connections on an object.

Returns: unsigned_long_at

IS_TOP_FREQUENTS (uint n)

Returns true if a given object is in the top n of a identifier.

Parameters (expressions not allowed):

            n- Given object must be in the top n frequents of the collected objects.

Returns: bool_at

IS_TOP (uint n)

Returns true if a given object is in the top n of a identifier.

Parameters (expressions not allowed):

            n- Given object must be in the top n of the collected objects.

Returns: bool_at

  • REQUESTS

    Returns the number of requests on an object.

Returns: unsigned_long_at

  • RESPTIME

    Returns the average response time of an object.

Returns: unsigned_long_at

STREAM_T

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