HP 6120XG HP ProCurve Series 6120 Blade Switches Access Security Guide - Page 245
Applied Rates for RADIUS-Assigned Rate Limits, Table 6-1., RADIUS-Assigned Rate-Limit Increments
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Configuring RADIUS Server Support for Switch Services RADIUS Server Configuration for Per-Port CoS (802.1p Priority) and Rate-Limiting Service Control Method and Operating Notes: Rate-Limiting on Vendor-Specific Attribute configured in the RADIUS server. inbound traffic ProCurve (HP) vendor-specific ID:11 This feature assigns a VSA: 46 (integer = HP) bandwidth limit to all Setting: HP-RATE-LIMIT = < bandwidth-in-Kbps > inbound packets received on a port supporting an authenticated client. Note: The CLI command for configuring a rate-limit on a port uses a percentage value. However, using a VSA on a RADIUS server to specify a rate-limit requires the actual Kbps to which you want to limit inbound traffic volume. Thus, to limit in-bound traffic on a gigabit port to 50% of the port's bandwidth capacity requires a VSA setting of 500000 (1,000,000 x 0.5). Requires a port-access (802.1X, Web Auth, or MAC Auth) authentication method configured on the client's port on the ProCurve switch. For more on Rate-Limiting, refer to "Rate-Limiting" in the "Port Traffic Controls" chapter of the Management and Configuration Guide for your switch. Applied Rates for RADIUS-Assigned Rate Limits On the switches covered by this guide, rate limits are applied incrementally, as determined by the RADIUS-applied rate. For any given bandwidth assign ment, the switch applies the nearest rate increment that does not exceed the assigned value. The increments are in graduated steps, as described in table 6-1. Table 6-1. RADIUS-Assigned Rate-Limit Increments RADIUS-Assigned Bits-Per-Second Rate Limit 1 - 10,999,999 11,000,000 - 100,999,999 101,000,000 - 999,999,999 1,000,000,000 - 10 Gbps Applied Rate-Limiting Increment 100 Kbps 1 Mbps 10 Mbps 100 Mbps For example, some of the following RADIUS-assigned rates fall between their respective incremental values, resulting in applied rates lower than the RADIUS-assigned rates. However, others match their respective incremental values, resulting in no difference between the RADIUS-assigned rate limits and the applied rate limits. 6-5