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Describe new NG_CAR_COUNT_PACKETS option.

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This commit is contained in:
Alexander Motin 2007-12-19 23:12:37 +00:00
parent bc8794a12a
commit 259c0b2f2f
1 changed files with 26 additions and 6 deletions
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32
share/man/man4/ng_car.4
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@ -108,6 +108,9 @@ Traffic shaping is much more polite to the TCP traffic than rate limit on
links with bandwidth * delay product less than 6-8 TCP segments, but it
consumes additional system resources for queue processing.
.El
By default, all information rates are measured in bits per second and bursts
are measured in bytes. But when NG_CAR_COUNT_PACKETS option is enabled,
rates are measured in packets per second and bursts are in packets.
.Sh CONTROL MESSAGES
This node type supports the generic control messages and the following
specific messages.
@ -120,17 +123,34 @@ Return current node configuration as
.Vt "struct ng_car_bulkconf"
.Bd -literal
struct ng_car_hookconf {
u_int64_t cbs; /* Committed burst size (bytes) */
u_int64_t ebs; /* Exceeded/Peak burst size (bytes) */
u_int64_t cir; /* Committed information rate (bits/s) */
u_int64_t pir; /* Peak information rate (bits/s) */
u_int64_t cbs; /* Committed burst size */
u_int64_t ebs; /* Exceeded/Peak burst size */
u_int64_t cir; /* Committed information rate */
u_int64_t pir; /* Peak information rate */
u_int8_t green_action; /* Action for green packets */
u_int8_t yellow_action; /* Action for yellow packets */
u_int8_t red_action; /* Action for red packets */
u_int8_t mode; /* single/double rate, ... */
u_int8_t opt; /* color-aware or color-blind */
u_int8_t mode; /* operation mode */
u_int8_t opt; /* mode options */
};
/* possible actions (..._action) */
enum {
NG_CAR_ACTION_FORWARD = 1,
NG_CAR_ACTION_DROP
};
/* operation modes (mode) */
enum {
NG_CAR_SINGLE_RATE = 0,
NG_CAR_DOUBLE_RATE,
NG_CAR_RED,
NG_CAR_SHAPE
};
/* mode options (opt) */
#define NG_CAR_COUNT_PACKETS 2
struct ng_car_bulkconf {
struct ng_car_hookconf upstream;
struct ng_car_hookconf downstream;