![]() ![]() ![]() This involves more subnets needed at the Enterprise Edge, so t he number of smaller subnets will increase. Layer 3 switching at the edge, replacing the Layer 2 switching with multi-layer switches.Data and voice VLANs are usually segregated, and in some scenarios, twice as many subnets may be needed when implementing Telephony in the network. The transition to VoIP Telephony and the additional subnet ranges required to support voice services.The importance of IP addressing is reflected in the new requirements that demand greater consideration of IP addressing, as the following examples illustrate: Solid IP address planning supports several features in an organization: In addition, having a solid IP addressing scheme not only makes ACLs easier to implement and more efficient for security, policy, and QoS purposes, but also it facilitates advanced routing policies and techniques (such as zone-based policy firewalls), where modular components and object groupings that are based on the defined IP addressing schemes can be created. Overall improvement of network stabilityĪddress summarization is also important when there is a need to distribute addresses from one routing domain into another, as it impacts both the configuration effort and the overhead in the routing processing.Addresses can be summarized to help isolate trouble domains.Faster convergence of routing protocols.Reduces the overhead on routers (the performance difference is noticeable, especially on older routers).Facilitating summarization and the ability to summarize addresses provides several advantages for the network: A solid IP addressing scheme helps routing protocols function in an optimal manner, using RIPv2, EIGRP, OSPF, or BGP. This is also important in scaling any of the dynamic routing protocols. These features will add value to the continually improving concept of the Enterprise Campus design. A solid addressing scheme should be hierarchical, structural, and modular. This aspect should be carefully planned and an implementation strategy should exist for the structural, hierarchical, and contiguous allocation of IP address blocks. One of the major concerns in the network design phase is ensuring that the IP addressing scheme is properly designed. Both environments have ESXi 6.7 servers.īelow is a picture of the environment I'd like to have.Related posts: Importance of IP Addressing for Network Design We are using FortiGate 51E's at each site with FortiSwitch 248D's at each site. Is it possible to create a VLAN on both sites with the same subnet information and have the servers in this VLAN? I know how to do this for a single site, but what if Server1 Site 1 (192.168.50.20) gets moved to Site 2? How will the router know where to route the traffic for Server1? Static routes just direct traffic to a gateway and if there are 2 subnets with the same network configuration, how will the router know where to route traffic if the IP it is trying to route traffic for doesn't exist in that gateways network? This also adds steps to the migration process ![]() I know DHCP can handle this, but I would like to keep the IP addresses the same, regardless of which site the servers are in. ![]() When we migrate our virtual servers from one site to another, we have to change the IP address of each server that is moved to reflect the destination subnet. There is connectivity between both sites and servers/clients can all communicate with each other. Both sites are directly connected to each other over an ISP provided LAN extension. Currently each site is using 1 subnet for the clients and servers. We currently have 2 remote sites, both with their own LAN subnet and servers hosted at each site. ![]()
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