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why linux bridge learns source mac from lldp packets
Does Linux virtual bridge support VLAN's?Understand Linux kernel virtual bridge port numberingPackets not moving through linux ethernet bridgebridge-routing and martian packetslinux bridge cannot send packets, TX packets counter equals 0How do I force packet go through specific physical interface knowing destination MAC only?
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when an LLDP packet is received, linux bridge adds the source mac to FDB.
In function br_handle_frame(),
case 0x0E: /* 802.1AB LLDP */
fwd_mask |= p->br->group_fwd_mask;
if (fwd_mask & (1u << dest[5]))
goto forward;
*pskb = skb;
__br_handle_local_finish(skb);
return RX_HANDLER_PASS;
__br_handle_local_finish() updates FDB with the packet's source mac.
My question is: is it required by any protocol or other components to have this mac in FDB? Why is it being added?
linux-kernel bridge
asked 30 mins ago
akpakp
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when an LLDP packet is received, linux bridge adds the source mac to FDB.
In function br_handle_frame(),
case 0x0E: /* 802.1AB LLDP */
fwd_mask |= p->br->group_fwd_mask;
if (fwd_mask & (1u << dest[5]))
goto forward;
*pskb = skb;
__br_handle_local_finish(skb);
return RX_HANDLER_PASS;
__br_handle_local_finish() updates FDB with the packet's source mac.
My question is: is it required by any protocol or other components to have this mac in FDB? Why is it being added?
linux-kernel bridge
asked 30 mins ago
akpakp
1
New contributor
akp is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment
|
when an LLDP packet is received, linux bridge adds the source mac to FDB.
In function br_handle_frame(),
case 0x0E: /* 802.1AB LLDP */
fwd_mask |= p->br->group_fwd_mask;
if (fwd_mask & (1u << dest[5]))
goto forward;
*pskb = skb;
__br_handle_local_finish(skb);
return RX_HANDLER_PASS;
__br_handle_local_finish() updates FDB with the packet's source mac.
My question is: is it required by any protocol or other components to have this mac in FDB? Why is it being added?
linux-kernel bridge
asked 30 mins ago
akpakp
1
New contributor
akp is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
when an LLDP packet is received, linux bridge adds the source mac to FDB.
In function br_handle_frame(),
case 0x0E: /* 802.1AB LLDP */
fwd_mask |= p->br->group_fwd_mask;
if (fwd_mask & (1u << dest[5]))
goto forward;
*pskb = skb;
__br_handle_local_finish(skb);
return RX_HANDLER_PASS;
__br_handle_local_finish() updates FDB with the packet's source mac.
My question is: is it required by any protocol or other components to have this mac in FDB? Why is it being added?
linux-kernel bridge
linux-kernel bridge
asked 30 mins ago
akpakp
1
New contributor
akp is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 30 mins ago
akpakp
1
New contributor
akp is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 30 mins ago
akpakp
1
New contributor
akp is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 30 mins ago
akpakp
1
asked 30 mins ago
akpakp
1
1
New contributor
akp is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
akp is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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add a comment
|
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