This patch adds the following VTY commands to tune AGCH queue
handling:
agch-queue-management
no agch-queue-management
agch-queue-management threshold THRES low LOW high HIGH
Examples:
agch-queue-management
Enable queue management with default parameters (default,
recommended)
no agch-queue-management
Disable it completely
agch-queue-management threshold 0 low 25 high 75
Start dropping at 25%, drop all messages above 75% queue length
(relative to max queue length corresponding to T3126). Between
low and high, drop with a probability interpolated linearly
between 0 (low) and 1 (high).
agch-queue-management threshold 50 low 0 high 0
Start dropping at 50% and continue until all IMM.ASS.REJ have
been removed from the front (output) of the queue
Sponsored-by: On-Waves ehf
---
src/common/vty.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+)
diff --git a/src/common/vty.c b/src/common/vty.c
index d2aeed0..f7a04d6 100644
--- a/src/common/vty.c
+++ b/src/common/vty.c
@@ -158,6 +158,16 @@ static void config_write_bts_single(struct vty *vty,
struct gsm_bts *bts)
VTY_NEWLINE);
vty_out(vty, " paging lifetime %u%s",
paging_get_lifetime(btsb->paging_state),
VTY_NEWLINE);
+ if (btsb->agch_queue_thres_level ==
GSM_BTS_AGCH_QUEUE_THRES_LEVEL_DISABLE)
+ vty_out(vty, " no agch-queue-mgmt%s", VTY_NEWLINE);
+ else if (btsb->agch_queue_thres_level ==
GSM_BTS_AGCH_QUEUE_THRES_LEVEL_DEFAULT
+ && btsb->agch_queue_low_level ==
GSM_BTS_AGCH_QUEUE_LOW_LEVEL_DEFAULT
+ && btsb->agch_queue_high_level ==
GSM_BTS_AGCH_QUEUE_HIGH_LEVEL_DEFAULT)
+ vty_out(vty, " agch-queue-mgmt%s", VTY_NEWLINE);
+ else
+ vty_out(vty, " agch-queue-mgmt threshold %d low %d high %d%s",
+ btsb->agch_queue_thres_level,
btsb->agch_queue_low_level,
+ btsb->agch_queue_high_level, VTY_NEWLINE);
bts_model_config_write_bts(vty, bts);
@@ -324,6 +334,56 @@ DEFUN(cfg_bts_paging_lifetime,
return CMD_SUCCESS;
}
+#define AGCH_QUEUE_STR "AGCH queue mgmt\n"
+
+DEFUN(cfg_bts_agch_queue_mgmt_params,
+ cfg_bts_agch_queue_mgmt_params_cmd,
+ "agch-queue-mgmt threshold <0-100> low <0-100> high <0-100000>",
+ AGCH_QUEUE_STR
+ "Threshold to start cleanup\nin %% of the maximum queue length\n"
+ "Low water mark for cleanup\nin %% of the maximum queue length\n"
+ "High water mark for cleanup\nin %% of the maximum queue length\n")
+{
+ struct gsm_bts *bts = vty->index;
+ struct gsm_bts_role_bts *btsb = bts_role_bts(bts);
+
+ btsb->agch_queue_thres_level = atoi(argv[0]);
+ btsb->agch_queue_low_level = atoi(argv[1]);
+ btsb->agch_queue_high_level = atoi(argv[2]);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_bts_agch_queue_mgmt,
+ cfg_bts_agch_queue_mgmt_cmd,
+ "agch-queue-mgmt",
+ AGCH_QUEUE_STR)
+{
+ struct gsm_bts *bts = vty->index;
+ struct gsm_bts_role_bts *btsb = bts_role_bts(bts);
+
+ btsb->agch_queue_thres_level = GSM_BTS_AGCH_QUEUE_THRES_LEVEL_DEFAULT;
+ btsb->agch_queue_low_level = GSM_BTS_AGCH_QUEUE_LOW_LEVEL_DEFAULT;
+ btsb->agch_queue_high_level = GSM_BTS_AGCH_QUEUE_HIGH_LEVEL_DEFAULT;
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_bts_no_agch_queue_mgmt,
+ cfg_bts_no_agch_queue_mgmt_cmd,
+ "no agch-queue-mgmt",
+ NO_STR AGCH_QUEUE_STR)
+{
+ struct gsm_bts *bts = vty->index;
+ struct gsm_bts_role_bts *btsb = bts_role_bts(bts);
+
+ btsb->agch_queue_thres_level = GSM_BTS_AGCH_QUEUE_THRES_LEVEL_DISABLE;
+ btsb->agch_queue_low_level = 0;
+ btsb->agch_queue_high_level = 0;
+
+ return CMD_SUCCESS;
+}
+
/* ======================================================================
@@ -496,6 +556,9 @@ int bts_vty_init(const struct log_info *cat)
install_element(BTS_NODE, &cfg_no_description_cmd);
install_element(BTS_NODE, &cfg_bts_paging_queue_size_cmd);
install_element(BTS_NODE, &cfg_bts_paging_lifetime_cmd);
+ install_element(BTS_NODE, &cfg_bts_agch_queue_mgmt_cmd);
+ install_element(BTS_NODE, &cfg_bts_no_agch_queue_mgmt_cmd);
+ install_element(BTS_NODE, &cfg_bts_agch_queue_mgmt_params_cmd);
/* add and link to TRX config node */
install_element(BTS_NODE, &cfg_bts_trx_cmd);
--
1.7.9.5
