{"id":3876,"date":"2025-07-07T16:02:21","date_gmt":"2025-07-07T08:02:21","guid":{"rendered":"https:\/\/www.key-iot.com\/?p=3876"},"modified":"2025-07-07T16:03:29","modified_gmt":"2025-07-07T08:03:29","slug":"must-gateways-be-configured-at-the-core-a-complete-comparison-of-gateway-deployment-across-different-architectures","status":"publish","type":"post","link":"https:\/\/www.key-iot.com\/de\/blog\/must-gateways-be-configured-at-the-core-a-complete-comparison-of-gateway-deployment-across-different-architectures\/","title":{"rendered":"M\u00fcssen Gateways im Kern konfiguriert werden? Ein vollst\u00e4ndiger Vergleich der Gateway-Implementierung in verschiedenen Architekturen"},"content":{"rendered":"<div translate=\"no\"><\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><img decoding=\"async\" class=\"alignnone size-full wp-image-3877\" title=\"9d6964b6cf41fff1da4f77bcc7d23df0\" src=\"https:\/\/www.key-iot.com\/wp-content\/uploads\/2025\/07\/9d6964b6cf41fff1da4f77bcc7d23df0.png\" alt=\"9d6964b6cf41fff1da4f77bcc7d23df0\" width=\"1128\" height=\"615\" srcset=\"https:\/\/www.key-iot.com\/wp-content\/uploads\/2025\/07\/9d6964b6cf41fff1da4f77bcc7d23df0.png 1128w, https:\/\/www.key-iot.com\/wp-content\/uploads\/2025\/07\/9d6964b6cf41fff1da4f77bcc7d23df0-300x164.png 300w, https:\/\/www.key-iot.com\/wp-content\/uploads\/2025\/07\/9d6964b6cf41fff1da4f77bcc7d23df0-1024x558.png 1024w, https:\/\/www.key-iot.com\/wp-content\/uploads\/2025\/07\/9d6964b6cf41fff1da4f77bcc7d23df0-768x419.png 768w, https:\/\/www.key-iot.com\/wp-content\/uploads\/2025\/07\/9d6964b6cf41fff1da4f77bcc7d23df0-600x327.png 600w\" sizes=\"(max-width: 1128px) 100vw, 1128px\" \/>Wenn <\/span><\/div>\n<div translate=\"no\"><\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">haben Sie sich das schon mal gefragt:<\/span><\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">K\u00f6nnen Aggregations-Switches VLANIF-Schnittstellen verarbeiten? Wird die Verwendung des Kerns als Gateway diesen \u00fcberlasten? Ist es sicher, Gateways auf der Zugangsebene zu platzieren?<\/span><\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Nach der Lekt\u00fcre dieses Artikels werden Sie in der Lage sein, zu bestimmen, wo und wie Sie Ihre Gateways richtig einsetzen.<\/span><\/div>\n<div translate=\"no\">\n<h2 class=\"AnswerParser_AnswerParserH2__SIHnF\">01 | Kl\u00e4ren wir zun\u00e4chst: Was ist der Zweck eines Gateways?<\/h2>\n<\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Einfach gesagt: A <strong><a href=\"https:\/\/www.key-iot.com\/de\/iotprodukt\/industrial-iot-gateway\/\">Gateway<\/a><\/strong> dient als Ausgangspunkt eines Subnetzes und erm\u00f6glicht den Zugang zu anderen Netzwerksegmenten.<\/span><\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Technisch gesehen handelt es sich um eine VLANIF-Schnittstelle - eine logische Layer-3-Schnittstelle, die auf einem Ger\u00e4t so konfiguriert ist, dass eine L3-Weiterleitung m\u00f6glich ist.<\/span><\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Das Ger\u00e4t, das diese Schnittstelle hostet, wird zum \"Gateway\" f\u00fcr dieses VLAN.<\/span><\/div>\n<div translate=\"no\">\n<h2 class=\"AnswerParser_AnswerParserH2__SIHnF\">02 | Wie sehen drei g\u00e4ngige Gateway-Implementierungsmodelle aus?<\/h2>\n<\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Im Folgenden wird untersucht, wie Gateways in drei g\u00e4ngigen Campus-Netzwerkarchitekturen eingesetzt werden:<\/span><\/div>\n<div translate=\"no\">\n<h3 class=\"AnswerParser_AnswerParserH3__Mpe4s\">Modell Eins: Gateways auf der Kernschicht (klassische Dreischicht)<\/h3>\n<\/div>\n<div translate=\"no\">\n<p><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><strong>Merkmale:<\/strong><\/span><\/p>\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Alle VLANIF-Schnittstellen sind auf Core-Switches konfiguriert.<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Aggregations-\/Zugangsschichten f\u00fchren nur Layer-2-Weiterleitung durch<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<p><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><strong>Geeignete Szenarien:<\/strong><\/span><\/p>\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Mittlere bis gro\u00dfe Campus-Netze<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Mehrere Dienste, zahlreiche VLANs, komplexe Layer-3-Richtlinien<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<p><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><strong>Vorteile:<\/strong><\/span><\/p>\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Zentralisierte Gateways f\u00fcr eine einheitliche Verwaltung<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Routing-Tabellen im Kern sorgen f\u00fcr klare Pfadsichtbarkeit<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Zentralisierte Bereitstellung von Sicherheitsrichtlinien mit Firewalls in der N\u00e4he des Kerns<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<p><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><strong>Benachteiligungen:<\/strong><\/span><\/p>\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Der gesamte Nord-S\u00fcd- und Ost-West-Verkehr muss das Zentrum durchqueren, wodurch ein hoher Druck entsteht.<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Der Kern wird zu einem einzigen Ausfallpunkt und potenziellen Engpass<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<h3 class=\"AnswerParser_AnswerParserH3__Mpe4s\">Modell zwei: Gateways auf der Aggregationsschicht (flache Dreischicht)<\/h3>\n<\/div>\n<div translate=\"no\">\n<p><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><strong>Merkmale:<\/strong><\/span><\/p>\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">VLANIF-Schnittstellen, die auf der Aggregationsschicht konfiguriert sind<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Die Aggregationsschicht \u00fcbernimmt die L3-Weiterleitung; der Kern verwaltet nur die Routenzusammenfassung oder Ausgangsverbindungen<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<p><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><strong>Geeignete Szenarien:<\/strong><\/span><\/p>\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Mittelgro\u00dfe Campus-Netze mit klar definierten Dienstbereichen<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Relativ unabh\u00e4ngige Aggregationszonen (z. B. nach Stockwerken oder Fl\u00e4chen organisiert)<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<p><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><strong>Vorteile:<\/strong><\/span><\/p>\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Geringere Kernbelastung<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Aggregationsschicht kann lokalisierte ACLs und Sicherheitsrichtlinien implementieren<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Flachere Netzstruktur, leichter zu erweitern<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<p><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><strong>Benachteiligungen:<\/strong><\/span><\/p>\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Jeder Aggregations-Switch verwaltet Routing-Tabellen, was die Routing-Komplexit\u00e4t erh\u00f6ht<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Die Kommunikation zwischen den Aggregationsschichten muss den Kern durchqueren, wodurch leicht indirekte Routing-Pfade entstehen<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<h3 class=\"AnswerParser_AnswerParserH3__Mpe4s\">Modell 3: Gateways auf der Zugangsschicht (Edge Gateways)<\/h3>\n<\/div>\n<div translate=\"no\">\n<p><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><strong>Merkmale:<\/strong><\/span><\/p>\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">VLANIF-Schnittstellen an Zugangs-Switches<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Jeder Zugangsswitch fungiert als Layer-3-Ger\u00e4t<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<p><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><strong>Geeignete Szenarien:<\/strong><\/span><\/p>\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Kleine Netze mit einfachen Implementierungen<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">IoT- oder Zweigstellenszenarien, bei denen die Ger\u00e4te relativ ortsfest sind und eine starke Isolierung erfordern<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<p><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><strong>Vorteile:<\/strong><\/span><\/p>\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Extrem vereinfachtes Netz, das keine Aggregationsschicht erfordert<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Alle Weiterleitungen werden lokal durchgef\u00fchrt, hohe Effizienz<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<p><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\"><strong>Benachteiligungen:<\/strong><\/span><\/p>\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Verteilte Ger\u00e4tekonfiguration, komplexe Verwaltung<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Verteilte Sicherheitsrichtlinien, die schwer zu pflegen sind<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Erh\u00f6hte Belastung der Zugangs-Switches, was sie anf\u00e4lliger f\u00fcr Ausf\u00e4lle macht<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<h2 class=\"AnswerParser_AnswerParserH2__SIHnF\">03 | Wo sollten die Gateways konfiguriert werden?<\/h2>\n<\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Dies h\u00e4ngt von der Gr\u00f6\u00dfe Ihres Netzes und Ihren gesch\u00e4ftlichen Anforderungen ab:<\/span><\/div>\n<div translate=\"no\">\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\"><strong>Kleine Netzwerke (\u226450 Ger\u00e4te)<\/strong>: Industrielle Router der Zugangsebene, die als Gateways dienen<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\"><strong>Mittlere Netzwerke (50-500 Ger\u00e4te)<\/strong>: Gateways der Aggregationsschicht<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\"><strong>Gro\u00dfe Netzwerke (500+ Ger\u00e4te)<\/strong>: Gateways der Kernschicht<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<h2 class=\"AnswerParser_AnswerParserH2__SIHnF\">04 | Sind \"hybride Bereitstellungen\" m\u00f6glich?<\/h2>\n<\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Ja. Viele reale Projekte verwenden \"gemischte\" Ans\u00e4tze:<\/span><\/div>\n<div translate=\"no\">\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Die meisten VLANIF-Schnittstellen befinden sich im Kern f\u00fcr eine zentralisierte Verwaltung<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Bestimmte spezialisierte Netze (z. B. \u00dcberwachungskameras, Sicherheitssysteme), die auf der Aggregations- oder Zugangsebene zur lokalen Isolierung und Weiterleitung platziert sind<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Drahtlose Controller und DHCP-Server, die unter Verwendung virtueller Gateways (SVI) + DHCP-Relay verteilt eingesetzt werden<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Die wichtigste \u00dcberlegung ist nach wie vor die Struktur des Gesch\u00e4ftsverkehrs und des Netzwerkflusses.<\/span><\/div>\n<div translate=\"no\">\n<h2 class=\"AnswerParser_AnswerParserH2__SIHnF\">05 | Praktische Empfehlungen f\u00fcr den Einsatz<\/h2>\n<\/div>\n<div translate=\"no\">\n<ul class=\"AnswerParser_AnswerParserUnorderedList__P_1FW\">\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Gateways auf der Kernschicht funktionieren gut, erfordern aber zuverl\u00e4ssige Ger\u00e4te + klare Weiterleitung + ausreichende Ressourcen<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Bei der Verwendung von Gateways auf der Aggregationsschicht sollte jeder Aggregations-Switch nur seine eigenen VLANs verwalten, um eine regions\u00fcbergreifende Vermischung zu vermeiden.<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"yes\">Access-Layer-Gateways werden f\u00fcr kleine\/unabh\u00e4ngige Segmente\/Abzweigknoten-Szenarien empfohlen<\/li>\n<li class=\"AnswerParser_ListItem__XqLOV\" translate=\"no\">Wenn Sie Gateway-Redundanz implementieren, denken Sie daran, VRRP oder HVRRP f\u00fcr hohe Verf\u00fcgbarkeit zu verwenden.<\/li>\n<\/ul>\n<\/div>\n<div translate=\"no\">\n<h2 class=\"AnswerParser_AnswerParserH2__SIHnF\">Abschlie\u00dfende \u00dcberlegungen<\/h2>\n<\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Die Platzierung eines Gateways ist keine willk\u00fcrliche Entscheidung.<\/span><\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Es muss sichergestellt werden, dass die gesamte Netzwerkarchitektur rational ist, der Gesch\u00e4ftsverkehr reibungslos abl\u00e4uft, die Ger\u00e4te die Last bew\u00e4ltigen k\u00f6nnen und die Wartung \u00fcberschaubar bleibt.<\/span><\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Zusammengefasst:<\/span><\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Kleine Netze: Edge-Gateways Mittlere Netze: Aggregations-Gateways Gro\u00dfe Netze: Kern-Gateways<\/span><\/div>\n<div translate=\"no\"><span class=\"AnswerParser_TextContainer__z_Iiv\" data-testid=\"youchat-text\">Eine gute Architektur verhindert Chaos, unterst\u00fctzt Erweiterungen und erleichtert die Fehlersuche.<\/span><\/div>\n<div translate=\"no\"><\/div>\n<div translate=\"no\"><\/div>","protected":false},"excerpt":{"rendered":"<p>If you&#8217;ve ever wondered: Can aggregation switches handle VLANIF interfaces? Will using the core as a gateway overburden it? Is it secure to place gateways at the access layer? After reading this article, you&#8217;ll be able to determine where and how to properly deploy your gateways. 01 | First, Let&#8217;s Clarify: What Is a Gateway&#8217;s [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3878,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"themepark_post_bcolor":"#f5f5f5","themepark_post_width":"1022px","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":false,"themepark_post_main_b":"","themepark_post_main_p":100,"themepark_paddingblock":false,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3876","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"metadata":{"classic-editor-remember":["classic-editor"],"_edit_lock":["1751877483:1"],"_edit_last":["1"],"_thumbnail_id":["3878"],"themepark_seo_title":["Must Gateways Be Configured at the Core? A Complete Comparison of Gateway Deployment Across Different Architectures"],"themepark_seo_description":["Can aggregation switches handle VLANIF interfaces? Will using the core as a gateway overburden it? Is it secure to place gateways at the access layer?\r\nAfter reading this article, you'll be able to determine where and how to properly deploy your gateways."],"catce":["sidebar-widgets4"],"_yoast_wpseo_primary_category":["16"],"_yoast_wpseo_metadesc":["Can aggregation switches handle VLANIF interfaces? Will using the core as a gateway overburden it? 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