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User-configurable physical MTU for individual links

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This patch allows users to specify the physical layer MTU for individual links
when in multipath mode. For example:

{
  "settings":
  {
    "defaultBondingPolicy": "custom-balance-xor",
    "policies":
    {
      "custom-balance-xor":
      {
        "basePolicy": "balance-xor",
        "failoverInterval": 5000,
        "links": {
          "weird_5g_link": { "mtu": 1300 },
          "enp5s0": { "mtu": 1400  }
        }
      }
    }
  }
}
This commit is contained in:
Joseph Henry 2023-01-11 20:12:15 -08:00 • committed by Sean OMeara
parent eccc31a4b9
commit 39f3f5b2d9
6 changed files with 36 additions and 7 deletions
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2
node/Switch.hpp
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@ -207,7 +207,7 @@ public:
private:
bool _shouldUnite(const int64_t now,const Address &source,const Address &destination);
bool _trySend(void *tPtr,Packet &packet,bool encrypt,int32_t flowId = ZT_QOS_NO_FLOW); // packet is modified if return is true
void _sendViaSpecificPath(void *tPtr,SharedPtr<Peer> peer,SharedPtr<Path> viaPath,int64_t now,Packet &packet,bool encrypt,int32_t flowId);
void _sendViaSpecificPath(void *tPtr,SharedPtr<Peer> peer,SharedPtr<Path> viaPath,uint16_t userSpecifiedMtu, int64_t now,Packet &packet,bool encrypt,int32_t flowId);
const RuntimeEnvironment *const RR;
int64_t _lastBeaconResponse;