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Fix for multicast propagation to prevent buildup of frames ping-ponging between supernodes.

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This commit is contained in:
Adam Ierymenko 2013-09-30 17:10:34 -04:00
parent e72a1de0d5
commit 1a76455986
1 changed files with 3 additions and 1 deletions
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4
node/PacketDecoder.cpp
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@ -576,7 +576,7 @@ bool PacketDecoder::_doMULTICAST_FRAME(const RuntimeEnvironment *_r,const Shared
// First element in newFifo[] is next hop
Address nextHop(newFifo,ZT_ADDRESS_LENGTH);
if (!nextHop) {
if ((!nextHop)&&(!_r->topology->amSupernode())) {
SharedPtr<Peer> supernode(_r->topology->getBestSupernode(&origin,1,true));
if (supernode)
nextHop = supernode->address();
@ -589,6 +589,8 @@ bool PacketDecoder::_doMULTICAST_FRAME(const RuntimeEnvironment *_r,const Shared
// The rest of newFifo[] goes back into the packet
memcpy(fifo,newFifo + ZT_ADDRESS_LENGTH,ZT_PROTO_VERB_MULTICAST_FRAME_LEN_PROPAGATION_FIFO);
//TRACE("forwarding MULTICAST_FRAME from %s(%s) to %s, original sender %s, current depth: %u",source().toString().c_str(),_remoteAddress.toString().c_str(),nextHop.toString().c_str(),origin.toString().c_str(),depth);
// Send to next hop, reusing this packet as scratch space
newInitializationVector();
setDestination(nextHop);