Displaying 6 results from an estimated 6 matches for "message_age".
2007 Apr 18
4
[Bridge] [Patch] [2.6.7] Bridge - Fix BPDU message_age
Fixes message_age field update in config BPDUs. Also checks whether the BPDU
message age has exceeded bridge max age before transmitting config BPDUs.
Signed-off-by: Kishore A K <KishoreAK@myw.ltindia.com>
Index: linux-2.6.7/net/bridge/br_stp.c
=============================================================...
2013 Sep 09
3
[Bridge] [PATCH 1/1] bridge: fix message_age_timer calculation
This changes the message_age_timer calculation to use the BPDU's max age as opposed to the local bridge's max age. This is in accordance with section 8.6.2.3.2 Step 2 of the 802.1D-1998 sprecification.
With the current implementation, when running with very large bridge diameters, convergance will not always occur ev...
2007 Apr 18
1
[Bridge] [PATCH 2.4] Bridge STP message age
...5:30:32 -07:00
+++ b/net/bridge/br_stp.c 2004-06-29 15:30:32 -07:00
@@ -20,7 +20,10 @@
#include "br_private.h"
#include "br_private_stp.h"
-
+/* since time values in bpdu are in jiffies and then scaled (1/256)
+ * before sending, make sure that is at least one.
+ */
+#define MESSAGE_AGE_INCR ((HZ < 256) ? 1 : (HZ/256))
/* called under ioctl_lock or bridge lock */
int br_is_root_bridge(struct net_bridge *br)
@@ -160,24 +163,26 @@
bpdu.root_path_cost = br->root_path_cost;
bpdu.bridge_id = br->bridge_id;
bpdu.port_id = p->port_id;
- bpdu.message_age = 0;
- if (!...
2007 Apr 18
0
[Bridge] [PATCH 2.6] Fix message age in bridge STP config packets
...14:45:50 -07:00
+++ b/net/bridge/br_stp.c 2004-06-29 14:45:50 -07:00
@@ -18,6 +18,11 @@
#include "br_private.h"
#include "br_private_stp.h"
+/* since time values in bpdu are in jiffies and then scaled (1/256)
+ * before sending, make sure that is at least one.
+ */
+#define MESSAGE_AGE_INCR ((HZ < 256) ? 1 : (HZ/256))
+
static const char *br_port_state_names[] = {
[BR_STATE_DISABLED] = "disabled",
[BR_STATE_LISTENING] = "listening",
@@ -157,24 +162,25 @@
bpdu.root_path_cost = br->root_path_cost;
bpdu.bridge_id = br->bridge_id;
bpdu.port_id...
2007 Apr 18
0
[Bridge] STP Explanation
...d char peut ?tre assimil? ? un octet
unsigned char version = 0x02; //convention
unsigned char bpdu_type;
} bpdu_header;
typedef struct
{
bpdu_flag flags;
unsigned char root_id[8];
unsigned char root_path_cost[4];
unsigned char bridge_id[8];
unsigned char port_id[2];
unsigned char message_age[2];
unsigned char max_age[2];
unsigned char hello_time[2];
unsigned char forward_delay[2];
} bpdu_body;
typedef struct
{
bpdu_header hdr;
bpdu_body body;
unsigned char ver_1_len[2];// ?
}bpdu;
-------------------------------------------------------------------------------------------...
2007 Apr 18
1
[Bridge] STP Explanation (2)
...uf[29] = bpdu->bpdu_body.bridge_id.addr[3];
buf[30] = bpdu->bpdu_body.bridge_id.addr[4];
buf[31] = bpdu->bpdu_body.bridge_id.addr[5];
buf[32] = (bpdu->bpdu_body.port_id >> 8) & 0xFF;
buf[33] = bpdu->bpdu_body.port_id & 0xFF;
br_set_ticks(buf+34, bpdu->bpdu_body.message_age);
br_set_ticks(buf+36, bpdu->bpdu_body.max_age);
br_set_ticks(buf+38, bpdu->bpdu_body.hello_time);
br_set_ticks(buf+40, bpdu->bpdu_body.forward_delay);
br_send_bpdu(p, buf, 42);
}
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I also modified the following f...