{"id":32143,"date":"2022-11-11T17:41:42","date_gmt":"2022-11-11T17:41:42","guid":{"rendered":"https:\/\/zpesystems.com\/?p=32143"},"modified":"2022-11-11T17:41:49","modified_gmt":"2022-11-11T17:41:49","slug":"comparing-cellular-failover-router-gateway-bridge-for-business-continuity-zs","status":"publish","type":"post","link":"https:\/\/zpesystems.com\/comparing-cellular-failover-router-gateway-bridge-for-business-continuity-zs\/","title":{"rendered":"Comparing Cellular Failover Router, Gateway &#038; Bridge for Business Continuity"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;0px||||false|false&#8221; custom_padding=&#8221;0px||||false|false&#8221; da_disable_devices=&#8221;off|off|off&#8221; global_colors_info=&#8221;{}&#8221; da_is_popup=&#8221;off&#8221; da_exit_intent=&#8221;off&#8221; da_has_close=&#8221;on&#8221; da_alt_close=&#8221;off&#8221; da_dark_close=&#8221;off&#8221; da_not_modal=&#8221;on&#8221; da_is_singular=&#8221;off&#8221; da_with_loader=&#8221;off&#8221; da_has_shadow=&#8221;on&#8221;][et_pb_row _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;auto&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.18.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/zpesystems.com\/wp-content\/uploads\/2022\/11\/NSRSTACK2-11.jpg&#8221; alt=&#8221;NSRSTACK2-1(1)&#8221; title_text=&#8221;NSRSTACK2-1(1)&#8221; _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]Cellular failover is critical for business continuity because it ensures uninterrupted internet access even if the primary ISP connection goes down. When looking for an enterprise cellular failover solution, you\u2019re likely to see the terms \u201ccellular failover router,\u201d \u201ccellular failover bridge,\u201d and \u201ccellular failover gateway\u201d used somewhat interchangeably. These three types of devices offer similar (and often overlapping) capabilities, which can make it difficult to tell which is the best option for your particular use case. In this post, we\u2019ll define and compare these different cellular failover devices before discussing the best option for business continuity.<\/p>\n<h2>Cellular failover router vs. cellular failover bridge vs. cellular failover gateway<\/h2>\n<p>Let\u2019s define the network functions provided by these devices and describe how cellular failover fits in. We\u2019ll start with bridges, which provide the least amount of functionality.<\/p>\n<h3>What is a cellular failover router?<\/h3>\n<p>This router connects multiple LANs together but can also forward traffic to and from locations outside the domain. It forwards packets on the network layer of the OSI model (layer 3) using IP addresses. A basic router does not provide access to the internet\u2014it must route traffic through a modem to forward packets outside of the LAN.<\/p>\n<p>A cellular failover router provides a secondary internet connection over which traffic can be routed if the primary ISP link goes down. It includes a cellular modem for internet access as well as IP routing capabilities, giving it more functionality than a cellular failover bridge. Since cellular failover routers combine a modem and router into a single device, they\u2019re often referred to as cellular failover gateways.<\/p>\n<h3>What is a cellular failover bridge?<\/h3>\n<p>A network bridge connects multiple local area networks (LANs) into a single domain but is not capable of moving data outside of the domain. It forwards frames on the data link layer of the OSI model (layer 2) using MAC addresses (also known as physical or hardware addresses).<\/p>\n<p>A cellular failover bridge is essentially a device that connects the primary network to the cellular failover network so LAN devices can access that network if the ISP connection goes down. Usually, these come in the form of cellular modems configured in bridge mode. A cellular modem in bridge mode provides internet access via the cellular LTE network and gives devices on the LAN a link (or \u201cbridge\u201d) to cross over to that cellular network. It does not provide routing functionality itself, however, so it needs the primary router for that.<\/p>\n<p><img decoding=\"async\" class=\"wp-image-32151 alignnone size-medium aligncenter\" src=\"https:\/\/zpesystems.com\/wp-content\/uploads\/2022\/11\/Screenshot-2022-11-07-133043-274x300.png\" alt=\"A basic network topology using a cellular modem in bridge mode for failover.\" width=\"274\" height=\"300\" \/><\/p>\n<p style=\"text-align: center;\"><b>Fig. 1: A basic network topology using a cellular modem in bridge mode for failover.<\/b><\/p>\n<h3>What is a cellular failover gateway?<\/h3>\n<p>A gateway is a device that connects multiple networks with different transmission protocols together. All traffic flowing into and out of an enterprise network must pass through a gateway. Network gateways combine the functionality of a modem and a router, so they provide both an internet connection and the ability to route packets to and from IP addresses. That\u2019s why cellular failover routers\u2014which combine a cellular internet connection and IP routing\u2014are frequently called cellular failover gateways.<\/p>\n<p><img decoding=\"async\" class=\"wp-image-32149 size-medium aligncenter\" src=\"https:\/\/zpesystems.com\/wp-content\/uploads\/2022\/11\/Screenshot-2022-11-07-132934-300x289.png\" alt=\"A basic network topology using a cellular failover gateway router\" width=\"300\" height=\"289\" \/><\/p>\n<p><b>Fig. 2: A basic network topology using a cellular failover gateway router<\/b><\/p>\n<p>Cellular failover routers\/gateways also function as cellular failover bridges, but the reverse is not true. A cellular failover bridge must rely on an external router for IP-based packet forwarding.<\/p>\n<h2>Why choose an integrated cellular failover device?<\/h2>\n<p>Generally speaking, the terms cellular failover router, bridge, or gateway refer to standalone devices. Often, they\u2019re designed to provide simple cellular connectivity and rely on the primary router\/gateway in order to function, such as Cradlepoint cellular failover adapters. Another option is to get a standalone cellular gateway, such as a Meraki, that you deploy alongside your primary router and fail traffic over to when the primary connection goes down.<\/p>\n<p>In both cases, you\u2019re investing in a single-purpose cellular failover device that must be purchased, installed, and managed in addition to the primary gateway router, network switches, serial consoles, etc. While this may not seem like a big deal in a single-site, centralized enterprise LAN, it grows much more onerous in a large and distributed network with many remote sites and a complicated SD-WAN architecture.<\/p>\n<p>A much better option is to buy an <a href=\"https:\/\/zpesystems.com\/branch-in-a-box-zs\/\">all-in-one device<\/a> that combines many networking capabilities into one, such as a <a href=\"https:\/\/zpesystems.com\/products\/branch-solutions\/\">Nodegrid Services Router<\/a>. Nodegrid devices include production gateway, routing, and switching functionality in addition to cellular failover, remote <a href=\"https:\/\/zpesystems.com\/in-band-vs-out-of-band-management-zs\/\">out-of-band (OOB) management<\/a> over serial, and more.<\/p>\n<p><img decoding=\"async\" class=\"wp-image-32148  aligncenter\" src=\"https:\/\/zpesystems.com\/wp-content\/uploads\/2022\/11\/Screenshot-2022-11-07-132802-290x300.png\" alt=\"A basic network topology using a Nodegrid Net Services Router with integrated networking, cellular failover, hosted firewall solution, and a serial console module.\" width=\"300\" height=\"310\" \/><\/p>\n<p><b>Fig. 3: A basic network topology using a Nodegrid Net Services Router with integrated networking, cellular failover, hosted firewall solution, and a serial console module.<\/b><\/p>\n<p>The Nodegrid solution is highly customizable, with six integrated routers to choose from depending on your deployment size and use case. The most flexible option is the <a href=\"https:\/\/zpesystems.com\/products\/nodegrid-services-router\/\">Nodegrid Net Services Router (NSR)<\/a> with a modular design that lets you swap out expansion modules to get the exact functionality you need without paying for extras that you don\u2019t. A single Nodegrid device can replace an entire rack of networking equipment, simplifying deployments in branch offices, edge computing data centers, manufacturing plants, and other remote sites.<\/p>\n<p>Plus, Nodegrid\u2019s vendor-neutral hardware and software allow you to consolidate infrastructure management behind a single pane of glass. You can use Nodegrid to orchestrate <a href=\"https:\/\/zpesystems.com\/solutions\/failover-connectivity\/\">cellular failover<\/a>, SD-WAN, DCIM, and more over a dedicated, reliable, and blazing-fast OOB management network.<br \/>\n[\/et_pb_text][et_pb_text _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; text_text_color=&#8221;#FFFFFF&#8221; background_color=&#8221;#358AAF&#8221; custom_margin=&#8221;||||true|false&#8221; custom_padding=&#8221;30px|30px|30px|30px|true|true&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2>Ready to learn more about Nodegrid cellular failover router connectivity?<\/h2>\n<p><b>To learn more or see a demo of Nodegrid in action, <\/b><a href=\"https:\/\/zpesystems.com\/contact\/\"><b>contact ZPE Systems<\/b><\/a><b> today.<\/b><\/p>\n<p><a class=\"HSSTYLEDCTA\" href=\"https:\/\/zpesystems.com\/contact\/\">Contact Us<\/a><br \/>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cellular failover routers, bridges, and gateways offer similar capabilities, so here&#8217;s what you need to know about all three to find the best option for your business continuity.<\/p>\n","protected":false},"author":5,"featured_media":32146,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","content-type":"","footnotes":""},"categories":[32,165,163,164,85,96,35,158,80],"tags":[],"class_list":["post-32143","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-datacenter-management","category-edge-computing","category-edgeops","category-network-edge-orchestration","category-sd-branch","category-sd-wan","category-sase","category-security-service-edge-sse","category-simplify-branch-infrastructure"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.0 (Yoast SEO v26.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Comparing Cellular Failover Router, Gateway &amp; Bridge for Business Continuity | ZPE<\/title>\n<meta name=\"description\" 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Baker","author_link":"https:\/\/zpesystems.com\/author\/jordan\/"},"rttpg_comment":0,"rttpg_category":"<a href=\"https:\/\/zpesystems.com\/category\/datacenter-management\/\" rel=\"category tag\">Data Center Management<\/a> <a href=\"https:\/\/zpesystems.com\/category\/edge-computing\/\" rel=\"category tag\">Edge Computing<\/a> <a href=\"https:\/\/zpesystems.com\/category\/edgeops\/\" rel=\"category tag\">EdgeOps<\/a> <a href=\"https:\/\/zpesystems.com\/category\/network-edge-orchestration\/\" rel=\"category tag\">Network Edge Orchestration<\/a> <a href=\"https:\/\/zpesystems.com\/category\/streamline-deployments\/sd-branch\/\" rel=\"category tag\">SD-Branch<\/a> <a href=\"https:\/\/zpesystems.com\/category\/improve-network-security\/sd-wan\/\" rel=\"category tag\">SD-WAN<\/a> <a href=\"https:\/\/zpesystems.com\/category\/improve-network-security\/sase\/\" rel=\"category tag\">Secure Access Service Edge (SASE)<\/a> <a href=\"https:\/\/zpesystems.com\/category\/improve-network-security\/security-service-edge-sse\/\" rel=\"category tag\">Security Service Edge (SSE)<\/a> <a href=\"https:\/\/zpesystems.com\/category\/simplify-branch-infrastructure\/\" rel=\"category tag\">Simplify Branch Infrastructure<\/a>","rttpg_excerpt":"Cellular failover routers, bridges, and gateways offer similar capabilities, so here's what you need to know about all three to find the best option for your business continuity.","_links":{"self":[{"href":"https:\/\/zpesystems.com\/wp-json\/wp\/v2\/posts\/32143","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zpesystems.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zpesystems.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zpesystems.com\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/zpesystems.com\/wp-json\/wp\/v2\/comments?post=32143"}],"version-history":[{"count":6,"href":"https:\/\/zpesystems.com\/wp-json\/wp\/v2\/posts\/32143\/revisions"}],"predecessor-version":[{"id":32352,"href":"https:\/\/zpesystems.com\/wp-json\/wp\/v2\/posts\/32143\/revisions\/32352"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zpesystems.com\/wp-json\/wp\/v2\/media\/32146"}],"wp:attachment":[{"href":"https:\/\/zpesystems.com\/wp-json\/wp\/v2\/media?parent=32143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zpesystems.com\/wp-json\/wp\/v2\/categories?post=32143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zpesystems.com\/wp-json\/wp\/v2\/tags?post=32143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}