git / moonbite-core / doc/reduce-traffic.md · raw

Reduce Traffic==============Some node operators need to deal with bandwidth caps imposed by their ISPs.By default, Litecoin Core allows up to 125 connections to different peers, 10 ofwhich are outbound. You can therefore, have at most 115 inbound connections.Of the 10 outbound peers, there can be 8 full-relay connections and 2block-relay-only ones.The default settings can result in relatively significant traffic consumption.Ways to reduce traffic:## 1. Use `-maxuploadtarget=<MiB per day>`A major component of the traffic is caused by serving historic blocks to other nodesduring the initial blocks download phase (syncing up a new node).This option can be specified in MiB per day and is turned off by default.This is *not* a hard limit; only a threshold to minimize the outboundtraffic. When the limit is about to be reached, the uploaded data is cut by nolonger serving historic blocks (blocks older than one week).Keep in mind that new nodes require other nodes that are willing to servehistoric blocks.Peers with the `download` permission will never be disconnected, although their traffic counts forcalculating the target.## 2. Disable "listening" (`-listen=0`)Disabling listening will result in fewer nodes connected (remember the maximum of 10outbound peers). Fewer nodes will result in less traffic usage as you are relayingblocks and transactions to fewer nodes.## 3. Reduce maximum connections (`-maxconnections=<num>`)Reducing the maximum connected nodes to a minimum could be desirable if trafficlimits are tiny. Keep in mind that litecoin's trustless model works best if you areconnected to a handful of nodes.## 4. Turn off transaction relay (`-blocksonly`)Forwarding transactions to peers increases the P2P traffic. To only sync blockswith other peers, you can disable transaction relay.Be reminded of the effects of this setting.- Fee estimation will no longer work.- It sets the flag "-walletbroadcast" to be "0", only if it is currently unset.  Doing so disables the automatic broadcasting of transactions from wallet. Not  relaying other's transactions could hurt your privacy if used while a wallet  is loaded or if you use the node to broadcast transactions.- If a peer has the forcerelay permission, we will still receive and relay  their transactions.- It makes block propagation slower because compact block relay can only be  used when transaction relay is enabled.