{"id":4891,"date":"2024-04-06T10:36:44","date_gmt":"2024-04-06T02:36:44","guid":{"rendered":"https:\/\/www.xinyixx.com\/?p=4891"},"modified":"2024-04-06T10:38:17","modified_gmt":"2024-04-06T02:38:17","slug":"ethertype","status":"publish","type":"post","link":"https:\/\/www.xinyixx.com\/index.php\/2024\/04\/06\/ethertype\/","title":{"rendered":"EtherType\uff1a\u4ee5\u592a\u7f51\u7c7b\u578b\u5b57\u6bb5\u53ca\u503c"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Ethernet II\u5373DIX 2.0\uff1aXerox\u4e0eDEC\u3001Intel\u57281982\u5e74\u5236\u5b9a\u7684\u4ee5\u592a\u7f51\u6807\u51c6\u5e27\u683c\u5f0f\u3002Cisco\u540d\u79f0\u4e3a\uff1aARPA<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><noscript><img decoding=\"async\" width=\"474\" height=\"248\" src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-14.png\" alt class=\"wp-image-4898\" srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-14.png 474w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-14-300x157.png 300w\" sizes=\"(max-width: 474px) 100vw, 474px\"><\/noscript><img decoding=\"async\" width=\"474\" height=\"248\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20474%20248%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-4898 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20474%20248%22%3E%3C%2Fsvg%3E 474w\" sizes=\"(max-width: 474px) 100vw, 474px\" data-srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-14.png 474w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-14-300x157.png 300w\" data-src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-14.png\"><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Ethernet II\u7c7b\u578b\u4ee5\u592a\u7f51\u5e27\u7684\u6700\u5c0f\u957f\u5ea6\u4e3a64\u5b57\u8282\uff086\uff0b6\uff0b2\uff0b46\uff0b4\uff09\uff0c\u6700\u5927\u957f\u5ea6\u4e3a1518\u5b57\u8282\uff086\uff0b6\uff0b2\uff0b1500\uff0b4\uff09\u3002\u5176\u4e2d\u524d12\u5b57\u8282\u5206\u522b\u6807\u8bc6\u51fa\u53d1\u9001\u6570\u636e\u5e27\u7684\u6e90\u8282\u70b9MAC\u5730\u5740\u548c\u63a5\u6536\u6570\u636e\u5e27\u7684\u76ee\u6807\u8282\u70b9MAC\u5730\u5740\u3002\uff08\u6ce8\uff1aISL\u5c01\u88c5\u540e\u53ef\u8fbe1548\u5b57\u8282\uff0c802.1Q\u5c01\u88c5\u540e\u53ef\u8fbe1522\u5b57\u8282\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u4e0b\u6765\u76842\u4e2a\u5b57\u8282\u6807\u8bc6\u51fa\u4ee5\u592a\u7f51\u5e27\u6240\u643a\u5e26\u7684\u4e0a\u5c42\u6570\u636e\u7c7b\u578b\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IPv4: 0x0800<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ARP:0x0806<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PPPoE:0x8864<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">802.1Q tag: 0x8100<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IPV6:&nbsp;0x86DD<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MPLS Label:0x8847<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e0d\u5b9a\u957f\u7684\u6570\u636e\u5b57\u6bb5\u540e\u662f4\u4e2a\u5b57\u8282\u7684\u5e27\u6821\u9a8c\u5e8f\u5217\uff08Frame. Check Sequence\uff0cFCS\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">EtherType \u662f\u4ee5\u592a\u5e27\u91cc\u7684\u4e00\u4e2a\u5b57\u6bb5\uff0c\u7528\u6765\u6307\u660e\u5e94\u7528\u4e8e\u5e27\u6570\u636e\u5b57\u6bb5\u7684\u534f\u8bae\u3002\u6839\u636e IEEE802.3\uff0cLength\/EtherType \u5b57\u6bb5\u662f\u4e24\u4e2a\u516b\u5b57\u8282\u7684\u5b57\u6bb5\uff0c\u542b\u4e49\u4e24\u8005\u53d6\u4e00\uff0c\u8fd9\u53d6\u51b3\u4e8e\u5176\u6570\u503c\u3002\u5728\u91cf\u5316\u8bc4\u4f30\u4e2d\uff0c\u5b57\u6bb5\u4e2d\u7684\u7b2c\u4e00\u4e2a\u516b\u4f4d\u5b57\u8282\u662f\u6700\u91cd\u8981\u7684\u3002\u800c\u5f53\u5b57\u6bb5\u503c\u5927\u4e8e\u7b49\u4e8e\u5341\u8fdb\u5236\u503c 1536 \uff08\u5373\u5341\u516d\u8fdb\u5236\u4e3a 0600\uff09\u65f6\uff0c EtherType \u5b57\u6bb5\u8868\u793a\u4e3a MAC \u5ba2\u6237\u673a\u534f\u8bae\uff08EtherType \u89e3\u91ca\uff09\u7684\u79cd\u7c7b\u3002\u8be5\u5b57\u6bb5\u7684\u957f\u5ea6\u548c EtherType \u8be6\u89e3\u662f\u4e92\u65a5\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8be5\u7c7b\u5b57\u6bb5\u503c\u53d6\u81ea IEEE EtherType \u5b57\u6bb5\u5bc4\u5b58\u5668\u3002EtherType \u5b57\u6bb5\u662f\u4e2a\u6781\u9650\u7a7a\u95f4\uff0c\u56e0\u6b64\u5176\u5206\u914d\u662f\u6709\u9650\u7684\u3002\u53ea\u6709\u5f00\u53d1\u65b0\u7684\u6570\u636e\u4f20\u8f93\u534f\u8bae\u7684\u4eba\u5458\u9700\u8981\u4f7f\u7528 EtherType \u5b57\u6bb5\uff0c\u800c\u4e0d\u7ba1\u4ed6\u4eec\u5b9e\u9645\u4e0a\u662f\u5426\u771f\u6b63\u751f\u4ea7\u4efb\u4f55\u8bbe\u5907\u3002IEEE RAC EtherType \u5b57\u6bb5\u6279\u51c6\u6743\u5a01\u673a\u6784\u8d1f\u8d23\u68c0\u67e5\u548c\u6279\u51c6 EtherType \u5b57\u6bb5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u77e5\u540d\u534f\u8bae\u5df2\u7ecf\u5206\u914d\u4e86 EtherType \u503c\uff0c\u4e0b\u9762\u8868\u683c\u4e2d\u5217\u51fa\u4e86 EtherType \u5b57\u6bb5\u4e2d\u5e38\u7528\u503c\u53ca\u5176\u5bf9\u5e94\u7684\u534f\u8bae\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Ethertype&nbsp;<br>(\u5341\u516d\u8fdb\u5236)<\/strong><\/td><td><strong>\u534f\u8bae<\/strong><\/td><\/tr><tr><td><strong>0x0000 &#8211; 0x05DC<\/strong><\/td><td>IEEE 802.3 \u957f\u5ea6<\/td><\/tr><tr><td><strong>0x0101\u2013 0x01FF<\/strong><\/td><td>\u5b9e\u9a8c<\/td><\/tr><tr><td><strong>0x0600<\/strong><\/td><td>XEROX NS IDP<\/td><\/tr><tr><td><strong>0x0660&nbsp;<br>0x0661<\/strong><\/td><td>DLOG<\/td><\/tr><tr><td><strong>0x0800<\/strong><\/td><td>\u7f51\u9645\u534f\u8bae\uff08IP\uff09<\/td><\/tr><tr><td><strong>0x0801<\/strong><\/td><td>X.75 Internet<\/td><\/tr><tr><td><strong>0x0802<\/strong><\/td><td>NBS Internet<\/td><\/tr><tr><td><strong>0x0803<\/strong><\/td><td>ECMA Internet<\/td><\/tr><tr><td><strong>0x0804<\/strong><\/td><td>Chaosnet<\/td><\/tr><tr><td><strong>0x0805<\/strong><\/td><td>X.25 Level 3<\/td><\/tr><tr><td><strong>0x0806<\/strong><\/td><td>\u5730\u5740\u89e3\u6790\u534f\u8bae\uff08ARP \uff1a Address Resolution Protocol\uff09<\/td><\/tr><tr><td><strong>0x0808<\/strong><\/td><td>\u5e27\u4e2d\u7ee7 ARP \uff08Frame Relay ARP\uff09 [RFC1701]<\/td><\/tr><tr><td><strong>0x6559<\/strong><\/td><td>\u539f\u59cb\u5e27\u4e2d\u7ee7\uff08Raw Frame Relay\uff09 [RFC1701]<\/td><\/tr><tr><td><strong>0x8035<\/strong><\/td><td>\u52a8\u6001 DARP \uff08DRARP\uff1aDynamic RARP\uff09<br>\u53cd\u5411\u5730\u5740\u89e3\u6790\u534f\u8bae\uff08RARP\uff1aReverse Address Resolution Protocol\uff09<\/td><\/tr><tr><td><strong>0x8037<\/strong><\/td><td>Novell Netware IPX<\/td><\/tr><tr><td><strong>0x809B<\/strong><\/td><td>EtherTalk<\/td><\/tr><tr><td><strong>0x80D5<\/strong><\/td><td>IBM SNA Services over Ethernet<\/td><\/tr><tr><td><strong>0x 80F 3<\/strong><\/td><td>AppleTalk \u5730\u5740\u89e3\u6790\u534f\u8bae\uff08AARP\uff1aAppleTalk Address Resolution Protocol\uff09<\/td><\/tr><tr><td><strong>0x8100<\/strong><\/td><td>\u4ee5\u592a\u7f51\u81ea\u52a8\u4fdd\u62a4\u5f00\u5173\uff08EAPS\uff1aEthernet Automatic Protection Switching\uff09<\/td><\/tr><tr><td><strong>0x8137<\/strong><\/td><td>\u56e0\u7279\u7f51\u5305\u4ea4\u6362\uff08IPX\uff1aInternet Packet Exchange\uff09<\/td><\/tr><tr><td><strong>0x 814C<\/strong><\/td><td>\u7b80\u5355\u7f51\u7edc\u7ba1\u7406\u534f\u8bae\uff08SNMP\uff1aSimple Network Management Protocol\uff09<\/td><\/tr><tr><td><strong>0x86DD<\/strong><\/td><td>\u7f51\u9645\u534f\u8baev6 \uff08IPv6\uff0cInternet Protocol version 6\uff09<\/td><\/tr><tr><td><strong>0x880B<\/strong><\/td><td>\u70b9\u5bf9\u70b9\u534f\u8bae\uff08PPP\uff1aPoint-to-Point Protocol\uff09<\/td><\/tr><tr><td><strong>0x 880C<\/strong><\/td><td>\u901a\u7528\u4ea4\u6362\u7ba1\u7406\u534f\u8bae\uff08GSMP\uff1aGeneral Switch Management Protocol\uff09<\/td><\/tr><tr><td><strong>0x8847<\/strong><\/td><td>\u591a\u534f\u8bae\u6807\u7b7e\u4ea4\u6362\uff08\u5355\u64ad\uff09 MPLS\uff1aMulti-Protocol Label Switching &lt;unicast&gt;\uff09<\/td><\/tr><tr><td><strong>0x8848<\/strong><\/td><td>\u591a\u534f\u8bae\u6807\u7b7e\u4ea4\u6362\uff08\u7ec4\u64ad\uff09\uff08MPLS, Multi-Protocol Label Switching &lt;multicast&gt;\uff09<\/td><\/tr><tr><td><strong>0x8863<\/strong><\/td><td>\u4ee5\u592a\u7f51\u4e0a\u7684 PPP\uff08\u53d1\u73b0\u9636\u6bb5\uff09\uff08PPPoE\uff1aPPP Over Ethernet &lt;Discovery Stage&gt;\uff09<\/td><\/tr><tr><td><strong>0x8864<\/strong><\/td><td>\u4ee5\u592a\u7f51\u4e0a\u7684 PPP\uff08PPP \u4f1a\u8bdd\u9636\u6bb5\uff09 \uff08PPPoE\uff0cPPP Over Ethernet&lt;PPP Session Stage&gt;\uff09<\/td><\/tr><tr><td><strong>0x88BB<\/strong><\/td><td>\u8f7b\u91cf\u7ea7\u8bbf\u95ee\u70b9\u534f\u8bae\uff08LWAPP\uff1aLight Weight Access Point Protocol\uff09<\/td><\/tr><tr><td><strong>0x88CC<\/strong><\/td><td>\u94fe\u63a5\u5c42\u53d1\u73b0\u534f\u8bae\uff08LLDP\uff1aLink Layer Discovery Protocol\uff09<\/td><\/tr><tr><td><strong>0x8E88<\/strong><\/td><td>\u5c40\u57df\u7f51\u4e0a\u7684 EAP\uff08EAPOL\uff1aEAP over LAN\uff09<\/td><\/tr><tr><td><strong>0x9000<\/strong><\/td><td>\u914d\u7f6e\u6d4b\u8bd5\u534f\u8bae\uff08Loopback\uff09<\/td><\/tr><tr><td><strong>0x9100<\/strong><\/td><td>VLAN \u6807\u7b7e\u534f\u8bae\u6807\u8bc6\u7b26\uff08VLAN Tag Protocol Identifier\uff09<\/td><\/tr><tr><td><strong>0x9200<\/strong><\/td><td>VLAN \u6807\u7b7e\u534f\u8bae\u6807\u8bc6\u7b26\uff08VLAN Tag Protocol Identifier\uff09<\/td><\/tr><tr><td><strong>0xFFFF<\/strong><\/td><td>\u4fdd\u7559<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><noscript><img decoding=\"async\" width=\"474\" height=\"302\" src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-15.png\" alt class=\"wp-image-4899\" srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-15.png 474w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-15-300x191.png 300w\" sizes=\"(max-width: 474px) 100vw, 474px\"><\/noscript><img decoding=\"async\" width=\"474\" height=\"302\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20474%20302%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-4899 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20474%20302%22%3E%3C%2Fsvg%3E 474w\" sizes=\"(max-width: 474px) 100vw, 474px\" data-srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-15.png 474w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-15-300x191.png 300w\" data-src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-15.png\"><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">EtherType \uff1a\u4ee5\u592a\u7f51\u7c7b\u578b\u5b57\u6bb5\u53ca\u503c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2. ARP \uff08ARP Header\u957f\u5ea6:8\u5b57\u8282\uff09<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><noscript><img decoding=\"async\" width=\"637\" height=\"445\" src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-13.png\" alt class=\"wp-image-4897\" srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-13.png 637w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-13-300x210.png 300w\" sizes=\"(max-width: 637px) 100vw, 637px\"><\/noscript><img decoding=\"async\" width=\"637\" height=\"445\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20637%20445%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-4897 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20637%20445%22%3E%3C%2Fsvg%3E 637w\" sizes=\"(max-width: 637px) 100vw, 637px\" data-srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-13.png 637w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-13-300x210.png 300w\" data-src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-13.png\"><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u786c\u4ef6\u7c7b\u578b\uff1a1 \u8868\u793a\u4ee5\u592a\u7f51<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u534f\u8bae\u7c7b\u578b\uff1a\u548cEthernet\u6570\u636e\u5e27\u4e2d\u7c7b\u578b\u5b57\u6bb5\u76f8\u540c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">OP\u64cd\u4f5c\u5b57\u6bb5\uff1a1 \u8868\u793aARP\u8bf7\u6c42<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2 \u8868\u793aARP\u5e94\u7b54<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3 \u8868\u793aRARP\u8bf7\u6c42<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4 \u8868\u793aRARP\u5e94\u7b54<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3. 802.1q VLAN\u6570\u636e\u5e27(4\u5b57\u8282\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u4e8e802.1Q\u7684VLAN\u5e27\u683c\u5f0f<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><noscript><img decoding=\"async\" width=\"512\" height=\"192\" src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-12.png\" alt class=\"wp-image-4896\" srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-12.png 512w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-12-300x113.png 300w\" sizes=\"(max-width: 512px) 100vw, 512px\"><\/noscript><img decoding=\"async\" width=\"512\" height=\"192\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20512%20192%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-4896 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20512%20192%22%3E%3C%2Fsvg%3E 512w\" sizes=\"(max-width: 512px) 100vw, 512px\" data-srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-12.png 512w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-12-300x113.png 300w\" data-src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-12.png\"><\/figure>\n<\/div>\n\n\n<ul class=\"wp-block-list\">\n<li>Type\uff1a\u957f\u5ea6\u4e3a2\u5b57\u8282\uff0c\u53d6\u503c\u4e3a0x8100\uff0c\u8868\u793a\u6b64\u5e27\u7684\u7c7b\u578b\u4e3a802.1Q Tag\u5e27\u3002<\/li>\n\n\n\n<li>PRI\uff1a\u957f\u5ea6\u4e3a3\u6bd4\u7279\uff0c\u53ef\u53d60\uff5e7\u4e4b\u95f4\u7684\u503c\uff0c\u8868\u793a\u5e27\u7684\u4f18\u5148\u7ea7\uff0c\u503c\u8d8a\u5927\u4f18\u5148\u7ea7\u8d8a\u9ad8\u3002\u8be5\u4f18\u5148\u7ea7\u4e3b\u8981\u4e3aQoS\u5dee\u5206\u670d\u52a1\u63d0\u4f9b\u53c2\u8003\u4f9d\u636e\uff08COS\uff09\u3002<\/li>\n\n\n\n<li>VLAN Identifier (VID)&nbsp;: \u957f\u5ea612bits\uff0c\u53ef\u914d\u7f6e\u7684VLAN ID\u53d6\u503c\u8303\u56f4\u4e3a1\uff5e4094\u3002\u901a\u5e38vlan 0\u548cvlan 4095\u9884\u7559\uff0cvlan1\u4e3a\u7f3a\u7701vlan\uff0c\u4e00\u822c\u7528\u4e8e\u7f51\u7ba1\u3002QinQ\u5e27\u683c\u5f0f<noscript><img decoding=\"async\" src=\"http:\/\/blog.chinaunix.net\/attachment\/201109\/20\/20530497_1316495600j94x.png\" alt><\/noscript><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt data-src=\"http:\/\/blog.chinaunix.net\/attachment\/201109\/20\/20530497_1316495600j94x.png\" class=\" lazyload\">4. PPP\u5e27\uff08\u9664\u53bb\u4fe1\u606f\u5b57\u6bb5\u540e\u957f\u5ea6\u4e3a\uff1a8\u5b57\u8282\uff09PPP\u62a5\u6587\u683c\u5f0f<noscript><img decoding=\"async\" src=\"http:\/\/blog.chinaunix.net\/attachment\/201109\/20\/20530497_1316495601PX9p.png\" alt><\/noscript><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt data-src=\"http:\/\/blog.chinaunix.net\/attachment\/201109\/20\/20530497_1316495601PX9p.png\" class=\" lazyload\">PPP\u62a5\u6587\u7684\u5185\u5bb9\u662f\u6307Address\u3001Control\u3001Protocol\u548cInformation\u56db\u4e2a\u57df\u7684\u5185\u5bb9\u3002\u5404\u5b57\u6bb5\u7684\u542b\u4e49\u5982\u4e0b\u3002<\/li>\n\n\n\n<li>Flag\u57dfFlag\u57df\u6807\u8bc6\u4e86\u4e00\u4e2a\u7269\u7406\u5e27\u7684\u8d77\u59cb\u548c\u7ed3\u675f\uff0c\u8be5\u5b57\u8282\u4e3a0x7E\u3002<\/li>\n\n\n\n<li>Address\u57dfPPP\u534f\u8bae\u662f\u88ab\u8fd0\u7528\u5728\u70b9\u5bf9\u70b9\u7684\u94fe\u8def\u4e0a\uff0c\u5b83\u53ef\u4ee5\u552f\u4e00\u6807\u8bc6\u5bf9\u65b9\u3002\u56e0\u6b64\u4f7f\u7528PPP\u534f\u8bae\u4e92\u8fde\u7684\u4e24\u4e2a\u901a\u4fe1\u8bbe\u5907\u65e0\u987b\u77e5\u9053\u5bf9\u65b9\u7684\u6570\u636e\u94fe\u8def\u5c42\u5730\u5740\u3002\u6240\u4ee5\u8be5\u5b57\u8282\u5df2\u65e0\u4efb\u4f55\u610f\u4e49\uff0c\u6309\u7167\u534f\u8bae\u7684\u89c4\u5b9a\u5c06\u8be5\u5b57\u8282\u586b\u5145\u4e3a\u51681\u7684\u5e7f\u64ad\u5730\u5740\u3002<\/li>\n\n\n\n<li>Control\u57df\u540cAddress\u57df\u4e00\u6837\uff0cPPP\u6570\u636e\u5e27\u7684Control\u57df\u4e5f\u6ca1\u6709\u5b9e\u9645\u610f\u4e49\uff0c\u6309\u7167\u534f\u8bae\u7684\u89c4\u5b9a\u901a\u4fe1\u53cc\u65b9\u5c06\u8be5\u5b57\u8282\u7684\u5185\u5bb9\u586b\u5145\u4e3a0x03\u3002Address\u548cControl\u57df\u4e00\u8d77\u8868\u793a\u4e86\u6b64\u62a5\u6587\u4e3aPPP\u62a5\u6587\uff0c\u5373PPP\u62a5\u6587\u5934\u4e3aFF03\u3002<\/li>\n\n\n\n<li>Protocol\u57df\u534f\u8bae\u57df\u53ef\u7528\u6765\u533a\u5206PPP\u6570\u636e\u5e27\u4e2d\u4fe1\u606f\u57df\u6240\u627f\u8f7d\u7684\u6570\u636e\u62a5\u6587\u7684\u5185\u5bb9\u3002<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>\u534f\u8bae\u4ee3\u7801<\/td><td>\u534f\u8bae\u7c7b\u578b<\/td><\/tr><tr><td>0021<\/td><td>Internet Protocol<\/td><\/tr><tr><td>8021<\/td><td>Internet Protocol Control Protocol<\/td><\/tr><tr><td>C021<\/td><td>Link Control Protocol<\/td><\/tr><tr><td>C023<\/td><td>Password Authentication Protocol<\/td><\/tr><tr><td>C223<\/td><td>Challenge Handshake Authentication Protocol<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Information\u57df\u4fe1\u606f\u57df\u6700\u5927\u957f\u5ea6\u662f1500\u5b57\u8282\uff0c\u5176\u4e2d\u5305\u62ec\u586b\u5145\u57df\u7684\u5185\u5bb9\u3002\u4fe1\u606f\u57df\u7684\u6700\u5927\u957f\u5ea6\u7b49\u4e8ePPP\u534f\u8bae\u4e2dMRU\uff08Maximum Receive Unit\uff09\u7684\u7f3a\u7701\u503c\u30025. HDLC\u5e27\uff08\u9664\u53bb\u4fe1\u606f\u5b57\u6bb5\u540e\u957f\u5ea6\u4e3a\uff1a8\u5b57\u8282\uff09HDLC\u5e27\u683c\u5f0f<noscript><img decoding=\"async\" src=\"http:\/\/blog.chinaunix.net\/attachment\/201109\/20\/20530497_1316495601iK2z.png\" alt><\/noscript><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt data-src=\"http:\/\/blog.chinaunix.net\/attachment\/201109\/20\/20530497_1316495601iK2z.png\" class=\" lazyload\">\u5404\u5b57\u6bb5\u7684\u542b\u4e49\u89e3\u91ca\uff1a<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>\u5b57\u6bb5<\/td><td>\u957f\u5ea6\uff08\u5b57\u8282\uff09<\/td><td>\u542b\u4e49<\/td><\/tr><tr><td>Protocol<\/td><td>2<\/td><td>\u534f\u8bae\u5b57\u6bb5\u3002\u8868\u793aInformation\u57df\u4e2d\u7684\u6570\u636e\u5c01\u88c5\u7684\u534f\u8bae\u7c7b\u578b\u3002<\/td><\/tr><tr><td>Information<\/td><td>N<\/td><td>\u4fe1\u606f\u5b57\u6bb5\u3002\u53ef\u4ee5\u662f\u4efb\u610f\u7684\u4e8c\u8fdb\u5236\u6bd4\u7279\u4e32\uff0c\u957f\u5ea6\u672a\u4f5c\u9650\u5b9a\u3002\u5176\u4e0a\u9650\u7531FCS\u5b57\u6bb5\u6216\u901a\u4fe1\u8282\u70b9\u7684\u7f13\u51b2\u5bb9\u91cf\u6765\u51b3\u5b9a\uff0c\u76ee\u524d\u56fd\u9645\u4e0a\u7528\u5f97\u8f83\u591a\u7684\u662f1000\uff5e2000\u6bd4\u7279\uff0c\u800c\u4e0b\u9650\u53ef\u4ee5\u662f0\uff0c\u5373\u65e0\u4fe1\u606f\u5b57\u6bb5\u3002\u4f46\u662f\u76d1\u63a7\u5e27\u4e2d\u4e0d\u53ef\u6709\u4fe1\u606f\u5b57\u6bb5\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">6. PPPoE\u62a5\u6587\uff08\u62a5\u6587\u5934\u957f\u5ea6\u4e3a6\u5b57\u8282\uff09<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><noscript><img decoding=\"async\" width=\"641\" height=\"282\" src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-16.png\" alt class=\"wp-image-4900\" srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-16.png 641w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-16-300x132.png 300w\" sizes=\"(max-width: 641px) 100vw, 641px\"><\/noscript><img decoding=\"async\" width=\"641\" height=\"282\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20641%20282%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-4900 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20641%20282%22%3E%3C%2Fsvg%3E 641w\" sizes=\"(max-width: 641px) 100vw, 641px\" data-srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-16.png 641w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-16-300x132.png 300w\" data-src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-16.png\"><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">windows\u7cfb\u7edfpppoe MTU\u5927\u5c0f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ed8\u8ba4\u548c\u6700\u5927&nbsp;PPPoE MTU&nbsp;\u5927\u5c0f\u4e3a&nbsp;1,480&nbsp;\u5b57\u8282\u3002\u5bf9\u4e8e\u67d0\u4e9b&nbsp;Internet&nbsp;\u670d\u52a1\u63d0\u4f9b\u5546&nbsp;(ISP)\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u5c06&nbsp;PPPoE&nbsp;\u8fde\u63a5\u7684&nbsp;MTU&nbsp;\u5927\u5c0f\u964d\u81f3&nbsp;1,400&nbsp;\u548c&nbsp;1,480&nbsp;\u4e4b\u95f4\u7684\u4e00\u4e2a\u503c\uff08\u4f8b\u5982&nbsp;1,454\uff09\u3002\u4e0d\u8981\u5c06&nbsp;MTU&nbsp;\u5927\u5c0f\u8bbe\u7f6e\u4e3a\u5c0f\u4e8e&nbsp;1,400\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8def\u7531\u5668pppoe\u62e8\u53f7\u65f6MTU\u4e3a1492<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">7. MPLS Label<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Label\u62a5\u6587\u683c\u5f0f\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><noscript><img decoding=\"async\" width=\"469\" height=\"143\" src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-8.png\" alt class=\"wp-image-4892\" srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-8.png 469w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-8-300x91.png 300w\" sizes=\"(max-width: 469px) 100vw, 469px\"><\/noscript><img decoding=\"async\" width=\"469\" height=\"143\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20469%20143%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-4892 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20469%20143%22%3E%3C%2Fsvg%3E 469w\" sizes=\"(max-width: 469px) 100vw, 469px\" data-srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-8.png 469w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-8-300x91.png 300w\" data-src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-8.png\"><\/figure>\n<\/div>\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"713\" src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-9-1024x713.png\" alt class=\"wp-image-4893\" srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-9-1024x713.png 1024w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-9-300x209.png 300w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-9-768x535.png 768w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-9.png 1217w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"713\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20713%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-4893 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20713%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-9-1024x713.png 1024w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-9-300x209.png 300w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-9-768x535.png 768w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-9.png 1217w\" data-src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-9-1024x713.png\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">MPLS uses a 32-bit label field that contains the following information:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>20-bit label (a number)<\/li>\n\n\n\n<li>3-bit experimental field (usually used to carry IP precedence value)<\/li>\n\n\n\n<li>1-bit bottom-of-stack indicator (indicates whether this is the last label before the IP header)<\/li>\n\n\n\n<li>8-bit TTL (equal to the TTL in IP header)\uff0cused to prevent indefinite loopi<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"530\" src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-10-1024x530.png\" alt class=\"wp-image-4894\" srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-10-1024x530.png 1024w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-10-300x155.png 300w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-10-768x398.png 768w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-10.png 1290w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"530\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20530%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-4894 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20530%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-10-1024x530.png 1024w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-10-300x155.png 300w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-10-768x398.png 768w, https:\/\/www.xinyixx.com\/wp-content\/uploads\/2024\/04\/image-10.png 1290w\" data-src=\"http:\/\/101.42.96.217:21080\/wp-content\/uploads\/2024\/04\/image-10-1024x530.png\"><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Ethernet II\u5373DIX 2.0\uff1aXerox\u4e0eDEC\u3001Intel\u57281982\u5e74\u5236\u5b9a\u7684\u4ee5\u592a\u7f51\u6807\u51c6\u5e27\u683c\u5f0f\u3002Ci [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[100],"tags":[],"class_list":["post-4891","post","type-post","status-publish","format-standard","hentry","category-network","entry"],"_links":{"self":[{"href":"https:\/\/www.xinyixx.com\/index.php\/wp-json\/wp\/v2\/posts\/4891","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xinyixx.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xinyixx.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xinyixx.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xinyixx.com\/index.php\/wp-json\/wp\/v2\/comments?post=4891"}],"version-history":[{"count":0,"href":"https:\/\/www.xinyixx.com\/index.php\/wp-json\/wp\/v2\/posts\/4891\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.xinyixx.com\/index.php\/wp-json\/wp\/v2\/media?parent=4891"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xinyixx.com\/index.php\/wp-json\/wp\/v2\/categories?post=4891"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xinyixx.com\/index.php\/wp-json\/wp\/v2\/tags?post=4891"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}