{"id":14981,"date":"2022-03-23T14:02:00","date_gmt":"2022-03-23T07:02:00","guid":{"rendered":"https:\/\/www.fiahub.com\/blog\/?p=14981"},"modified":"2022-04-04T16:37:53","modified_gmt":"2022-04-04T09:37:53","slug":"cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups","status":"publish","type":"post","link":"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/","title":{"rendered":"C\u00e1ch gi\u1ea3m kh\u00ed gas tr\u00ean Ethereum b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng Layer-2 Rollups"},"content":{"rendered":"\n<p>Th\u1eddi gian giao d\u1ecbch ch\u1eadm, ph\u00ed gas cao l\u00e0 nh\u1eefng nguy\u00ean nh\u00e2n l\u00e0m ng\u01b0\u1eddi d\u00f9ng c\u1ea3m th\u1ea5y kh\u00f3 ch\u1ecbu v\u1edbi m\u1ea1ng l\u01b0\u1edbi c\u1ee7a <a href=\"https:\/\/www.fiahub.com\">Ethereum<\/a>; \u0111\u1eb7c bi\u1ec7t khi ng\u00e0y nay Ethereum \u0111\u00e3 l\u00e0 m\u1ed9t trong nh\u1eefng n\u1ec1n t\u1ea3ng h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh h\u00e0ng \u0111\u1ea7u. T\u1eeb th\u00e1ng 1\/2022, Ethereum v\u1eabn \u0111ang x\u1eed l\u00fd g\u1ea7n 1,19 tri\u1ec7u giao d\u1ecbch m\u1ed7i ng\u00e0y.&nbsp;<\/p>\n\n\n\n<p>Ng\u01b0\u1eddi d\u00f9ng v\u1eabn r\u1ea5t lo ng\u1ea1i r\u1eb1ng l\u00e0m sao \u0111\u1ec3 Ethereum duy tr\u00ec \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed s\u1ed1 1 c\u1ee7a m\u00ecnh khi ng\u00e0y c\u00e0ng nhi\u1ec1u nh\u1eefng blockchain kh\u00e1c \u0111ang xu\u1ea5t hi\u1ec7n nh\u01b0 Fantom, BSC, Solana. B\u00e0i vi\u1ebft h\u00f4m nay ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 gi\u1ea3i ph\u00e1p gi\u1ea3m kh\u00ed gas tr\u00ean Ethereum th\u00f4ng qua Layer-2 Rollups nh\u00e9!<\/p>\n\n\n\n<p>N\u1ebfu b\u1ea1n \u0111\u1ecdc v\u1eabn ch\u01b0a hi\u1ec3u r\u00f5 v\u1ec1 Layer-2 Rollups t\u1eeb Ethereum, c\u0169ng nh\u01b0 hai lo\u1ea1i rollups ph\u1ed5 bi\u1ebfn l\u00e0 Optimistic Rollups v\u00e0 Zero-Knowledge Rollups, vui l\u00f2ng xem th\u00eam \u1edf nh\u1eefng b\u00e0i vi\u1ebft c\u1ee7a Fiahub, <a href=\"https:\/\/www.fiahub.com\/blog\/ethereum-bung-no-cac-giai-phap-mo-rong-thong-qua-layer-2\/\">t\u1ea1i \u0111\u00e2y<\/a>.&nbsp;<\/p>\n\n\n\n<p>Hi\u1ec7n nay, c\u00f3 m\u1ed9t s\u1ed1 d\u1ef1 \u00e1n tr\u00ean Ethereum \u0111ang \u1ee9ng d\u1ee5ng <a href=\"https:\/\/www.fiahub.com\/blog\/tong-quan-ve-cac-giao-thuc-layer-2-tren-ethereum\/\" target=\"_blank\" rel=\"noreferrer noopener\">Layer 2<\/a> Rollups n\u00e0y.&nbsp;<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed9i dung b\u00e0i vi\u1ebft<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#Polygon\" >Polygon<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#Cach_su_dung_mang_Polygon\" >C\u00e1ch s\u1eed d\u1ee5ng m\u1ea1ng Polygon<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#Arbitrum\" >Arbitrum<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#Cach_su_dung_Arbitrum\" >C\u00e1ch s\u1eed d\u1ee5ng Arbitrum<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#Optimism\" >Optimism<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#Cach_su_dung_Optimism\" >C\u00e1ch s\u1eed d\u1ee5ng Optimism<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#Loopring\" >Loopring<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#Cach_su_dung_Loopring\" >C\u00e1ch s\u1eed d\u1ee5ng Loopring<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#StarkEx\" >StarkEx<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#Vi_sao_ban_nen_su_dung_Layer-2\" >V\u00ec sao b\u1ea1n n\u00ean s\u1eed d\u1ee5ng Layer-2?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Polygon\"><\/span><a href=\"https:\/\/www.fiahub.com\/blog\/polygon-matic-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Polygon<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u0110\u01b0\u1ee3c xem nh\u01b0 Internet Blockchain c\u1ee7a Ethereum, Polygon l\u00e0 m\u1ed9t n\u1ec1n t\u1ea3ng Layer-2 mang t\u1edbi gi\u1ea3i ph\u00e1p m\u1edf r\u1ed9ng v\u00e0 c\u00f2n l\u00e0 m\u1ed9t framework c\u00f3 t\u00ednh n\u0103ng t\u01b0\u01a1ng t\u00e1c v\u1edbi nh\u1eefng Layer-2 kh\u00e1c.&nbsp;<\/p>\n\n\n\n<p>Kh\u00e1c v\u1edbi nh\u1eefng rollups kh\u00e1c, Polygon c\u00f3 token ri\u00eang c\u1ee7a m\u00ecnh &#8211; MATIC v\u00e0 s\u1eed d\u1ee5ng thay th\u1ebf cho Ethereum trong vi\u1ec7c chi tr\u1ea3 ph\u00ed gas. T\u1eeb \u0111\u00f3 m\u00e0 Polygon c\u00f3 m\u1ed9t l\u1ee3i th\u1ebf h\u01a1n so v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p Layer-2 kh\u00e1c tr\u00ean Ethereum hi\u1ec7n nay; v\u00ec ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng c\u1ea7n m\u1ea5t chi ph\u00ed chuy\u1ec3n token Ethereum v\u00e0o Mainnet Polygon ban \u0111\u1ea7u; thay v\u00e0o \u0111\u00f3 ch\u1ec9 c\u1ea7n mua MATIC token v\u00e0 s\u1eed d\u1ee5ng cho vi\u1ec7c mua nh\u1eefng token kh\u00e1c tr\u00ean s\u00e0n giao d\u1ecbch phi t\u1eadp trung (DEX) c\u00f3 h\u1ed7 tr\u1ee3 m\u1ea1ng Polygon.&nbsp;<\/p>\n\n\n\n<p>Khi s\u1eed d\u1ee5ng Polygon DApps, ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0\u1ee3c cung c\u1ea5p thanh kho\u1ea3n, th\u1ef1c hi\u1ec7n giao d\u1ecbch ho\u1eb7c \u0111\u01b0a ra nh\u1eefng kho\u1ea3n vay c\u1ee7a m\u00ecnh v\u1edbi chi ph\u00ed ch\u1ec9 b\u1eb1ng m\u1ed9t ph\u1ea7n nh\u1ecf c\u1ee7a Ethereum Mainnet.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/03\/a2-5.png\" alt=\"ETH, Ethereum Blockchain, Layer 2 Rollup\" class=\"wp-image-14982\" width=\"900\" height=\"600\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cach_su_dung_mang_Polygon\"><\/span>C\u00e1ch s\u1eed d\u1ee5ng m\u1ea1ng Polygon<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>B\u01b0\u1edbc 1:<\/strong> T\u1ea3i v\u00ed Metamask v\u00e0 l\u1ef1a ch\u1ecdn th\u00eam Polygon Mainnet.&nbsp;<\/p>\n\n\n\n<p>B\u1ea1n nh\u1ea5p v\u00e0o bi\u1ec3u t\u01b0\u1ee3ng Metamask tr\u00ean tr\u00ecnh duy\u1ec7t, sao \u0111\u00f3 ch\u1ecdn Ethereum Mainnet; r\u1ed3i Th\u00eam m\u1ea1ng.&nbsp;<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 2<\/strong>: D\u1ef1a tr\u00ean c\u00e1c tr\u01b0\u1eddng h\u1ee3p t\u01b0\u01a1ng \u1ee9ng, d\u00e1n c\u00e1c c\u1ee5m sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Name Network<\/strong>: Polygon Mainnet (t\u00ean m\u1ea1ng)<\/li><li><strong>New URL RPC<\/strong>: https:\/\/rpc-mainnet.maticvigil.com\/&nbsp;<\/li><li><strong>Symbol<\/strong>: URL MATICBlock (tu\u1ef3 ch\u1ecdn)<\/li><li><strong>Chain ID<\/strong>: 137<\/li><li><strong>URL<\/strong>: https:\/\/explorer.matic.network\/ (tu\u1ef3 ch\u1ecdn)<\/li><\/ul>\n\n\n\n<p><strong>B\u01b0\u1edbc 3<\/strong>: Chuy\u1ec3n <a href=\"https:\/\/www.fiahub.com\/blog\/goc-tim-hieu-su-khac-biet-giua-mang-bep2-bep20-erc20-omni-va-trc20\/\" target=\"_blank\" rel=\"noreferrer noopener\">token ERC-20<\/a> tr\u00ean Ethereum sang Polygon b\u1eb1ng Bridge; n\u1ebfu mu\u1ed1n ti\u1ebft ki\u1ec7m chi ph\u00ed, b\u1ea1n h\u00e3y mua MATIC tr\u00ean s\u00e0n DEX r\u1ed3i chuy\u1ec3n v\u00e0o v\u00ed c\u1ee7a m\u00ecnh. L\u01b0\u1ee3ng MATIC ph\u1ea3i \u0111\u1ee7 \u0111\u1ec3 chi tr\u1ea3 ph\u00ed ti\u1ebfn h\u00e0nh giao d\u1ecbch tr\u00ean m\u1ea1ng Polygon.&nbsp;<\/p>\n\n\n\n<p>Khi c\u00f3 MATIC trong v\u00ed, b\u1ea1n d\u00f9ng b\u1ea5t k\u1ef3 DApp n\u00e0o c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 Polygon v\u00e0 s\u1eed d\u1ee5ng v\u1edbi nh\u1eefng ti\u1ec7n \u00edch c\u00f3 ph\u00ed th\u1ea5p, x\u00e1c nh\u1eadn nhanh.&nbsp;<\/p>\n\n\n\n<p>M\u1ed9t s\u1ed1 giao th\u1ee9c rollups \u0111ang ch\u00fa \u00fd hi\u1ec7n nay tr\u00ean Polygon l\u00e0 ZKSync, L2 DEX ZigZag v\u00e0 ZKSwap.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Arbitrum\"><\/span><a href=\"https:\/\/www.fiahub.com\/blog\/arbitrum-giai-phap-mo-rong-layer-2-vuot-troi-va-thong-tin-lien-quan\/\" target=\"_blank\" rel=\"noreferrer noopener\">Arbitrum<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p m\u1edf r\u1ed9ng d\u1ef1a tr\u00ean b\u1ea3n c\u1eadp nh\u1eadt Optimistic c\u1ee7a <a href=\"https:\/\/www.fiahub.com\">Ethereum<\/a>; cho ph\u00e9p th\u00f4ng tin \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qua h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh t\u1eeb m\u1ea1ng ch\u00ednh \u0111\u1ebfn chu\u1ed7i l\u1edbp th\u1ee9 hai c\u1ee7a Arbitrum; c\u00f4ng vi\u1ec7c s\u1ebd \u0111\u01b0\u1ee3c x\u1eed l\u00fd trong chu\u1ed7i n\u00e0y. Giao d\u1ecbch sau c\u00f9ng s\u1ebd ghi l\u1ea1i k\u1ebft qu\u1ea3 tr\u00ean m\u1ea1ng ch\u00ednh v\u00e0 t\u0103ng hi\u1ec7u qu\u1ea3, t\u1ed1c \u0111\u1ed9 l\u00e0m vi\u1ec7c c\u1ee7a Ethereum.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/03\/a3-2-1024x538.jpg\" alt=\"ETH, Ethereum Blockchain, Layer 2 Rollup\" class=\"wp-image-14983\" width=\"900\" height=\"600\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cach_su_dung_Arbitrum\"><\/span>C\u00e1ch s\u1eed d\u1ee5ng Arbitrum<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u0110\u1ec3 c\u00f3 th\u1ec3 trao \u0111\u1ed5i token tr\u00ean Arbitrum, ng\u01b0\u1eddi d\u00f9ng s\u1ebd c\u1ea7n v\u00ed Web3 nh\u01b0 Metamask, v\u00e0 k\u1ebft n\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng web. C\u00e1c b\u01b0\u1edbc th\u1ef1c hi\u1ec7n g\u1ed3m:<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 1: <\/strong>T\u1ea3i Metamask, th\u00eam Artribum Mainnet. B\u1ea1n \u1ea5n v\u00e0o bi\u1ec3u t\u01b0\u1ee3ng Metamask tr\u00ean tr\u00ecnh duy\u1ec7t, r\u1ed3i ch\u1ecdn Ethereum Mainnet; sau \u0111\u00f3 th\u00eam m\u1ea1ng.&nbsp;<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 2: <\/strong>Tu\u1ef3 v\u00e0o tr\u01b0\u1eddng t\u01b0\u01a1ng \u1ee9ng, b\u1ea1n d\u00e1n c\u00e1c c\u1ee5m t\u1eeb sau:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Network Name<\/strong>: Arbitrum Mainnet<\/li><li><strong>Chain ID<\/strong>: 42161<\/li><li><strong>RPC<\/strong>: https:\/\/arb1.arbitrum.io\/rpc&nbsp;&nbsp;<\/li><li><strong>Currency Symbol<\/strong>: ETH (<em>bi\u1ec3u t\u01b0\u1ee3ng ti\u1ec1n t\u1ec7<\/em>)<\/li><li><strong>Block Explorer URL<\/strong>:&nbsp; https:\/\/arbiscan.io&nbsp;&nbsp;<\/li><\/ul>\n\n\n\n<p>Ng\u01b0\u1eddi d\u00f9ng chuy\u1ec3n ERC-20 tr\u00ean Ethereum sang Arbitrum b\u1eb1ng Bridge. M\u1ecdi token tr\u00ean Ethereum \u0111\u1ec1u t\u01b0\u01a1ng th\u00edch v\u1edbi Arbitrum v\u00e0 b\u1ea1n c\u00f3 th\u1ec3 t\u1eadn h\u01b0\u1edfng giao d\u1ecbch v\u1edbi nh\u1eefng kho\u1ea3n ph\u00ed th\u1ea5p h\u01a1n nhi\u1ec1u t\u1ea1i DEX b\u1ea5t k\u1ef3 d\u1ef1a tr\u00ean Arbitrum; v\u00ed d\u1ee5 1inch hay AnySwap. B\u1ea1n c\u1ea7n ch\u1ecdn m\u1ea1ng Arbitrum khi s\u1eed d\u1ee5ng c\u00e1c s\u00e0n giao d\u1ecbch.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Optimism\"><\/span>Optimism<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng ngh\u1ec7 h\u00e0ng \u0111\u1ea7u v\u1ec1 Rollups <a href=\"https:\/\/www.fiahub.com\/blog\/optimism-hoan-thanh-series-b-voi-so-tien-150-trieu-usd\/\" target=\"_blank\" rel=\"noreferrer noopener\">Optimistic<\/a>; g\u1ed3m m\u1ed9t Layer Network \u0111\u01b0\u1ee3c t\u1ea1o ra nh\u1eb1m m\u1edf r\u1ed9ng h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh, k\u00e8m theo s\u1ef1 b\u1ea3o m\u1eadt t\u1eeb Ethereum. Ngo\u00e0i ra, n\u00f3 c\u0169ng \u0111\u01b0\u1ee3c UNISWAP V3 &#8211; DEX h\u1ed7 tr\u1ee3 tr\u00ean Ethereum. Tuy nhi\u00ean b\u1ea1n c\u1ea7n Metamask khi s\u1eed d\u1ee5ng m\u1ea1ng n\u00e0y.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cach_su_dung_Optimism\"><\/span>C\u00e1ch s\u1eed d\u1ee5ng Optimism<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>B\u01b0\u1edbc 1: <\/strong>B\u1ea1n truy c\u1eadp https:\/\/gateway.optimism.io\/ v\u00e0 ch\u1ecdn Metamask; v\u00ed c\u1ee7a b\u1ea1n s\u1ebd k\u1ebft n\u1ed1i.&nbsp;<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 2:<\/strong> B\u1ea1n chuy\u1ec3n c\u00e1c token d\u1ef1a tr\u00ean Ethereum qua c\u1ed5ng \u0111\u01b0\u1ee3c cung c\u1ea5p m\u00e0 b\u1ea1n mu\u1ed1n giao d\u1ecbch t\u1ea1i Optimism Mainnet. B\u1ea1n n\u00ean ch\u00fa \u00fd \u0111\u1ee7 l\u01b0\u1ee3ng ETH \u0111\u1ec3 tr\u1ea3 ph\u00ed gas.&nbsp;<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 3:<\/strong> \u0110\u1ec3 giao d\u1ecbch, b\u1ea1n truy c\u1eadp https:\/\/app.uniswap.org v\u00e0 ch\u1ecdn Optimism thay v\u00ec ch\u1ecdn Etherum. B\u1ea1n ch\u1ecdn token trao \u0111\u1ed5i v\u00e0 s\u1ef1 x\u00e1c nh\u1eadn di\u1ec5n ra nhanh ch\u00f3ng, c\u00f9ng chi ph\u00ed th\u1ea5p.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Loopring\"><\/span>Loopring<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>M\u1ed9t d\u1ea1ng DEX Layer-2 Ethereum kh\u00e1c d\u1ef1a tr\u00ean ZK-Rollup, cung c\u1ea5p giao di\u1ec7n tr\u1ef1c quan c\u1ee7a s\u1ed5 l\u1ec7nh Order Book; \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 t\u1ea1o l\u1eadp th\u1ecb tr\u01b0\u1eddng AMM (Automated Market Maker) thi\u1ebft l\u1eadp. Ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0\u1ee3c ph\u00e9p giao d\u1ecbch v\u1edbi chi ph\u00ed th\u1ea5p v\u00e0 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao. Loopring c\u0169ng gi\u00fap b\u1ea1n g\u1eedi c\u00e1c token ERC-20 v\u00e0 ETH v\u00e0o b\u1ea5t k\u1ef3 \u0111\u1ecba ch\u1ec9 Ethereum n\u00e0o trong m\u1ea1ng Loopring.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/03\/a5.png\" alt=\"ETH, Ethereum Blockchain, Layer 2 Rollup\" class=\"wp-image-14984\" width=\"900\" height=\"600\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cach_su_dung_Loopring\"><\/span>C\u00e1ch s\u1eed d\u1ee5ng Loopring<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>B\u01b0\u1edbc 1:<\/strong> B\u1ea1n v\u00e0o https:\/\/app.lopring.io\/ v\u00e0 ch\u1ecdn Download Loopring Wallet; m\u00e0n h\u00ecnh l\u00fac n\u00e0y s\u1ebd chuy\u1ec3n t\u1edbi trang DEX.&nbsp;<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 2:<\/strong> B\u1ea1n li\u00ean k\u1ebft v\u1edbi v\u00ed Metamask v\u00e0 ch\u1ec9nh Ethereum Mainnet.<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 3:<\/strong> B\u1ea1n chuy\u1ec3n token \u0111\u00e3 ch\u1ecdn \u0111\u1ec3 ph\u00e2n nh\u00f3m m\u1ea1ng Layer-2 c\u1ee7a Loopring; v\u00e0 tr\u1ea3 ph\u00ed gas b\u1eb1ng ETH. Khi chuy\u1ec3n t\u00e0i s\u1ea3n xong, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Loopring. B\u1ea1n c\u00f3 th\u1ec3 trao \u0111\u1ed5i c\u00e1c token d\u1ef1a tr\u00ean ETH v\u00e0 trong Layer c\u1ee7a Ethereum qua tab Trade m\u1ed9t c\u00e1ch li\u1ec1n m\u1ea1ch.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"StarkEx\"><\/span>StarkEx<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>M\u1ed9t d\u1ea1ng giao th\u1ee9c m\u1edf r\u1ed9ng kh\u00e1c, \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Starkware d\u1ea1ng ZK-Rollup v\u00e0o n\u0103m 2020. StarkEx mang \u0111\u1ebfn DEX non-custodial &#8211; ng\u01b0\u1eddi d\u00f9ng t\u1ef1 s\u1edf h\u1eefu t\u00e0i s\u1ea3n c\u1ee7a m\u00ecnh; t\u1ef1 t\u1ea1o ra c\u00e1c giao d\u1ecbch swap token v\u1edbi t\u00ednh thanh kho\u1ea3n cao, c\u00f9ng m\u1ee9c ph\u00ed th\u1ea5p. Giao th\u1ee9c h\u1ed7 tr\u1ee3 token ERC-20 v\u00e0 ERC-721; cho ph\u00e9p c\u00e1c NFT Marketplace c\u00f3 th\u1ec3 ch\u1ea1y tr\u00ean Layer-2 nh\u01b0 Immutable X.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/03\/a6-1024x510.jpg\" alt=\"ETH, Ethereum Blockchain, Layer 2 Rollup\" class=\"wp-image-14985\" width=\"900\" height=\"600\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Vi_sao_ban_nen_su_dung_Layer-2\"><\/span>V\u00ec sao b\u1ea1n n\u00ean s\u1eed d\u1ee5ng Layer-2?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Khi th\u1ef1c hi\u1ec7n giao d\u1ecbch ti\u1ec1n \u0111i\u1ec7n t\u1eed qu\u00e1 \u00edt ho\u1eb7c qu\u00e1 l\u1edbn, v\u00e0 kh\u00ed gas kh\u00f4ng l\u00e0 g\u00ec m\u00e0 b\u1ea1n n\u00ean b\u1ea1n t\u00e2m, b\u1ea1n c\u00f3 th\u1ec3 kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng b\u1ea3n c\u1eadp nh\u1eadt Layer-2. Nh\u01b0ng n\u1ebfu kh\u00f4ng, b\u1ea1n h\u00e3y \u1ee9ng d\u1ee5ng n\u00f3 cho m\u1ecdi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00ecnh tr\u00ean Ethereum v\u00ec n\u00f3 gi\u00fap b\u1ea1n gi\u1ea3m thi\u1ec3u chi ph\u00ed swap token hi\u1ec7u qu\u1ea3 trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng t\u00e0i ch\u00ednh phi t\u1eadp trung ho\u1eb7c NFT.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Rollups v\u1eabn c\u00f2n r\u1ea5t m\u1edbi v\u00e0 c\u00f2n nhi\u1ec1u th\u1eddi gian \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh h\u01a1n \u1edf Layer-2 nh\u01b0ng v\u1edbi nh\u1eefng c\u1eadp nh\u1eadt hi\u1ec7n nay, Ethereum \u0111\u00e3 gi\u00fap ng\u01b0\u1eddi d\u00f9ng c\u1ea3m th\u1ea5y \u201cnh\u1eb9 nh\u00e0ng\u201d h\u01a1n v\u1edbi nh\u1eefng \u00e1p l\u1ef1c do ph\u00ed gas cao v\u00e0 ngh\u1ebdn m\u1ea1ng c\u1ee7a m\u00ecnh.&nbsp;<\/p>\n\n\n\n<p><a href=\"https:\/\/www.fiahub.com\">Fiahub<\/a> mong r\u1eb1ng, th\u00f4ng qua b\u00e0i vi\u1ebft n\u00e0y ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 hi\u1ec3u m\u1ed9t v\u00e0i c\u00e1ch \u1ee9ng d\u1ee5ng Layer-2 Rollups trong vi\u1ec7c gi\u1ea3m ph\u00ed giao d\u1ecbch tr\u00ean Ethereum. Ch\u00fac c\u00e1c b\u1ea1n th\u00e0nh c\u00f4ng v\u00e0 \u0111\u1eebng qu\u00ean, m\u1ecdi th\u1eafc m\u1eafc v\u1ec1 th\u1ecb tr\u01b0\u1eddng crypto, vui l\u00f2ng li\u00ean h\u1ec7 \u0111\u1ed9i ng\u0169 Support c\u1ee7a ch\u00fang t\u00f4i 24\/7.&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Th\u1eddi gian giao d\u1ecbch ch\u1eadm, ph\u00ed gas cao l\u00e0 nh\u1eefng nguy\u00ean nh\u00e2n l\u00e0m ng\u01b0\u1eddi d\u00f9ng c\u1ea3m th\u1ea5y kh\u00f3 ch\u1ecbu v\u1edbi m\u1ea1ng l\u01b0\u1edbi c\u1ee7a Ethereum; \u0111\u1eb7c bi\u1ec7t khi ng\u00e0y nay Ethereum \u0111\u00e3 l\u00e0 m\u1ed9t trong nh\u1eefng n\u1ec1n t\u1ea3ng h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh h\u00e0ng \u0111\u1ea7u. T\u1eeb th\u00e1ng 1\/2022, Ethereum v\u1eabn \u0111ang x\u1eed l\u00fd g\u1ea7n 1,19 tri\u1ec7u giao<\/p>\n","protected":false},"author":24,"featured_media":15242,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21843],"tags":[3115,2676,17761,22076,17955],"class_list":{"0":"post-14981","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-huong-dan-dau-tu","8":"tag-ethereum","9":"tag-ethereum-eth","10":"tag-layer-2","11":"tag-optimistic-rollup","12":"tag-polygon"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e1ch gi\u1ea3m kh\u00ed gas tr\u00ean Ethereum b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng Layer-2 Rollups - Fiahub<\/title>\n<meta name=\"description\" content=\"B\u00e0i vi\u1ebft h\u00f4m nay, h\u00e3y c\u00f9ng Fiahub t\u00ecm hi\u1ec3u vi\u1ec7c \u1ee9ng d\u1ee5ng Layer-2 Rollups trong vi\u1ec7c gi\u1ea3m kh\u00ed gas tr\u00ean Ethereum nh\u00e9!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e1ch gi\u1ea3m kh\u00ed gas tr\u00ean Ethereum b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng Layer-2 Rollups\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i vi\u1ebft h\u00f4m nay, h\u00e3y c\u00f9ng Fiahub t\u00ecm hi\u1ec3u vi\u1ec7c \u1ee9ng d\u1ee5ng Layer-2 Rollups trong vi\u1ec7c gi\u1ea3m kh\u00ed gas tr\u00ean Ethereum nh\u00e9!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/\" \/>\n<meta property=\"og:site_name\" content=\"Fiahub Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/FiahubVN\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-03-23T07:02:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-04-04T09:37:53+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/03\/layer2-rollup.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Le Hoang\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@FIAHUBVN\" \/>\n<meta name=\"twitter:site\" content=\"@FIAHUBVN\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Le Hoang\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"9 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/\"},\"author\":{\"name\":\"Le Hoang\",\"@id\":\"https:\/\/www.fiahub.com\/blog\/#\/schema\/person\/438ca2054bd04d8ef374b9dd54ed3418\"},\"headline\":\"C\u00e1ch gi\u1ea3m kh\u00ed gas tr\u00ean Ethereum b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng Layer-2 Rollups\",\"datePublished\":\"2022-03-23T07:02:00+00:00\",\"dateModified\":\"2022-04-04T09:37:53+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/\"},\"wordCount\":1898,\"publisher\":{\"@id\":\"https:\/\/www.fiahub.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/03\/layer2-rollup.png\",\"keywords\":[\"ethereum\",\"ethereum (eth)\",\"layer 2\",\"Optimistic Rollup\",\"Polygon\"],\"articleSection\":[\"H\u01b0\u1edbng d\u1eabn chuy\u00ean s\u00e2u\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/\",\"url\":\"https:\/\/www.fiahub.com\/blog\/cach-giam-khi-gas-tren-ethereum-bang-cach-su-dung-layer-2-rollups\/\",\"name\":\"C\u00e1ch gi\u1ea3m kh\u00ed gas tr\u00ean Ethereum b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng Layer-2 Rollups - 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