8000 option to send voice vlan id in the cdp/lldp message · Issue #51 · sspans/ladvd · GitHub
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option to send voice vlan id in the cdp/lldp message #51

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gereoffy opened this issue Jul 27, 2023 · 1 comment
9D03 Open

option to send voice vlan id in the cdp/lldp message #51

gereoffy opened this issue Jul 27, 2023 · 1 comment

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@gereoffy
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Organization specific TLV (127), length 8: OUI ANSI/TIA (0x0012bb)
  Network policy Subtype (2)
    Application type [voice] (0x01), Flags [Tagged]
    Vlan id 100, L2 priority 6, DSCP value 46

it would be useful for testing/configuring ip phones from linux...
@gereoffy
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gereoffy commented Jul 27, 2023 •
edited
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here is a quick&dirty hack to implement this:


--- a/src/proto/lldp.c
+++ b/src/proto/lldp.c
@@ -306,12 +306,30 @@ size_t lldp_packet(uint8_t proto, void *packet, struct netif *netif,
 	START_LLDP_TLV(LLDP_TYPE_PRIVATE) &&
 	PUSH_BYTES(OUI_TIA, OUI_LEN) &&
 	PUSH_UINT8(LLDP_PRIVATE_TIA_SUBTYPE_CAPABILITIES) &&
-	PUSH_UINT16(sysinfo->cap_lldpmed) &&
-	PUSH_UINT8(sysinfo->lldpmed_devtype)
+	PUSH_UINT16(sysinfo->cap_lldpmed | LLDP_TIA_CAPABILITY_NETWORK_POLICY) &&
+	PUSH_UINT8(LLDP_TIA_DEVICE_TYPE_NETWORK_CONNECTIVITY)
     ))
 	return 0;
     END_LLDP_TLV;

+
+//FE 08       127/len=8
+// 00 12 BB   02  oui=TIA (0x0012bb)  subtype=2
+// 01         Application type [voice] (0x01)
+// 40 C9 AE   vlan=100,l2prio=6,dscp=46
+
+    // TIA voice vlan  FIXME A'rpi
+    if (!(
+	START_LLDP_TLV(LLDP_TYPE_PRIVATE) &&
+	PUSH_BYTES(OUI_TIA, OUI_LEN) &&
+	PUSH_UINT8(LLDP_PRIVATE_TIA_SUBTYPE_NETWORK_POLICY) &&
+	PUSH_UINT8(0x01) &&    /* Application type [voice] (0x01) */
+	PUSH_UINT8(0x40) && PUSH_UINT8(0xC9) && PUSH_UINT8(0xAE)   /* FIXME  vlan100 hardcoded */
+    ))
+	return 0;
+    END_LLDP_TLV;
+
+
     // TIA Location Identification TLv

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