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lldp: send the port id as an interface name

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The Port ID TLV carried a single digit with the locally assigned
subtype, so a neighbour listed us as port "3". Send "Port 3" with the
interface name subtype instead, the form the port keeps in the CLI and
the web UI.
This commit is contained in:
d00f committed 2026-10-13 04:00:17 +02:00
1 parent 1856aeba28
commit 677536dd74
2 files changed
+6 -2
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rtl837x_lldp.c
+2
View File
@@ -76,6 +76,8 @@ void lldp_send(void) __banked __reentrant
*p++ = LLDP_TYPE(LLDP_PORT_ID_TLV_TYPE); *p++ = LLDP_TYPE(LLDP_PORT_ID_TLV_TYPE);
*p++ = LLDP_PORT_ID_TLV_LENGTH; *p++ = LLDP_PORT_ID_TLV_LENGTH;
*p++ = LLDP_PORT_ID_TLV_SUBTYPE; *p++ = LLDP_PORT_ID_TLV_SUBTYPE;
memcpyc(p, LLDP_PORT_ID_PREFIX, LLDP_PORT_ID_PREFIX_LENGTH);
p += LLDP_PORT_ID_PREFIX_LENGTH;
port_position = (p-LLDP_O->payload); port_position = (p-LLDP_O->payload);
*p++ = '0'; // filled in per port below *p++ = '0'; // filled in per port below
rtl837x_lldp.h
+4 -2
View File
@@ -11,8 +11,10 @@
#define LLDP_TX_INTERVAL_TICKS 6000 #define LLDP_TX_INTERVAL_TICKS 6000
#define LLDP_PORT_ID_TLV_TYPE 2 #define LLDP_PORT_ID_TLV_TYPE 2
#define LLDP_PORT_ID_TLV_LENGTH 0x02 #define LLDP_PORT_ID_PREFIX "Port "
#define LLDP_PORT_ID_TLV_SUBTYPE 0x07 #define LLDP_PORT_ID_PREFIX_LENGTH 5
#define LLDP_PORT_ID_TLV_LENGTH (1 + LLDP_PORT_ID_PREFIX_LENGTH + 1)
#define LLDP_PORT_ID_TLV_SUBTYPE 0x05
#define LLDP_TTL_TLV_TYPE 3 #define LLDP_TTL_TLV_TYPE 3
#define LLDP_TTL_TLV_LENGTH 2 #define LLDP_TTL_TLV_LENGTH 2