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Introduction to various

Introduction to various. LAN configurations for. Mark Wallis Atlas Gentech o3/May/2o1o. IP Network. Scenario 1 Standard Topology. Usage: MFIM IP is routable from the clients Network, but iPECS Devices exist on the iPECS `System IP Range`

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Introduction to various

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  1. Introduction to various LAN configurations for Mark Wallis Atlas Gentech o3/May/2o1o

  2. IP Network Scenario 1 Standard Topology Usage: MFIM IP is routable from the clients Network, but iPECS Devices exist on the iPECS `System IP Range` This is the normal installation topology for iPECS. Advantages: Keep Clients IP Address space free. IP Addresses for iPECS Devices & Client network can’t conflict. Local Phontage Devices do not use an IP Channel Disadvantages: Under some circumstances there can be routing problems between Client PC’s Phontage and iPECS System IP assigned Devices (see note) Note: For best voice packet transmission for Phontage Devices (192.168.1.0/24), input a second system IP Address (192.168.1.1 / 255.255.255.0) otherwise in local mode, only 1 Phontage can communicate with the LGCM (although communication with local IP phones is fine) iPECS Devices System IP range 10.10.10.0/24 MFIM 192.168.10.25 LGCM8 10.10.10.13 Ext 702 10.10.10.12 Client Routers Assigned range 192.168.10.254 To 192.168.10.240 iPECS Dual Plane IP Topology Ext 701 10.10.10.11 Ext 700 10.10.10.10 Client PCs Assigned range 192.168.10.100 To 192.168.10.200 Client Servers And fixed peripherals Assigned Range 192.168.10.1 To 192.168.10.40 MFIM + Client Network 192.168.10.0/24 iPECS Devices 10.10.10.0/24 Broadcast Domain

  3. IP Network Scenario 2 Flat Topology Usage: MFIM IP and all its devices are routable on (or exist on) the iPECS `System IP Range`. i.e. they are all part of the same IP Subnet This is common where Local/Remote working is desired (eg for a company VPN) Advantages: All Devices are routable – suits the use of Local/Remote sate for distant devices Disadvantages: Uses IP Addresses on the clients network (IP Address space can be insufficient, either for the client devices or iPECS devices). Conflicts in IP Addressing with clients devices are possible. 192.168.20.0/24 MFIM 192.168.10.20 A Local Remote Network (Routable by a non-NAT/NAPT router) LGCM8 192.168.10.33 Ext 702 192.168.10.32 Flat Plane IP Topology Client Routers Assigned range 192.168.10.254 To 192.168.10.240 Ext 701 192.168.10.31 Ext 700 192.168.10.30 192.168.10.0/24 Client PCs Assigned range 192.168.10.100 To 192.168.10.200 Client Servers And fixed peripherals Assigned Range 192.168.10.1 To 192.168.10.19 MFIM, iPECS Devices + Client Network 10.10.10.0/24 Broadcast Domain

  4. IP Network Scenario 3 Concurrent Topology Usage: MFIM IP and all its devices are on the same IP network, but the Client’s devices are on a different IP network (although the same physical network). A router can be employed to allow routing between the networks. It is generally not employed (except as part of scenario 1). Advantages: Like a VLAN it segregates routable Networks, has low possibility of IP Address conflict, utilises same LAN switch devices for both networks Disadvantages: Unlike a VLAN, it does not help in bandwidth management. A router is required if IP communication between iPECS and Client network is required. Has a large broadcast domain. MFIM 192.168.33.2 LGCM8 192.168.33.13 Ext 702 192.168.33.12 Client Routers Assigned range 192.168.10.254 To 192.168.10.240 iPECS Concurrent IP Topology Ext 701 192.168.33.11 Ext 700 192.168.33.10 Client PCs Assigned range 192.168.10.100 To 192.168.10.200 Client Servers And fixed peripherals Assigned Range 192.168.10.1 To 192.168.10.40 Client Network 192.168.10.0/24 Physical but not Logical connection MFIM + iPECS Devices 192.168.33.0/24 Broadcast Domain

  5. IP Network Scenario 4 VLAN Topology Usage: MFIM IP and Devices are on a VLAN built for ‘voice’ & inhabit the same IP Network, while the client’s devices inhabit a different ‘data’ VLAN. Again a router can be employed to achieve routing (communication) between the VLANs This is usually part of a Voice QOS solution Advantages: VLAN offers very controllable bandwidth management on the LAN, restricts broadcast traffic, Disadvantages: more expensive switches (Smart or managed switches vs. ‘dumb’ switch) , more technically skilled management required. MFIM 192.168.10.201 VLAN 20 LGCM8 192.168.10.203 VLAN 20 Ext 702 192.168.10.204 VLAN 20 Client Routers Assigned range 192.168.10.254 To 192.168.10.240 iPECS VLAN IP Topology Ext 701 192.168.10.205 VLAN 20 Ext 700 192.168.10.202 VLAN 20 Client PCs VLAN 1 Assigned range 192.168.10.100 To 192.168.10.200 Client Servers And fixed peripherals VLAN 1 Assigned Range 192.168.10.1 To 192.168.10.40 Client Network 192.168.10.0/24 VLAN 1 Separate Broadcast Domains 192.168.10.0/24 VLAN 20 MFIM + iPECS Devices

  6. IP Network Scenario 5 Separated Topology Usage: All iPECS Devices are on a Physically separate network! Sometimes employed at sites with an unstable or troublesome Office LAN. Advantages: Provides for absolute bandwidth management, An IP Address conflict with the Client Network is impossible. Similar advantages to VLAN but retains simple management. Disadvantages: more expensive – more switches needed, need a router (or multilayer switch) to connect with client network if connection is desired (e.g. for the Phontage client). MFIM 10.10.10.2 LGCM8 10.10.10.14 Ext 702 10.10.10.13 Client Routers Assigned range 192.168.10.254 To 192.168.10.240 iPECS Separated IP Topology Ext 701 10.10.10.12 Ext 700 10.10.10.11 Client PCs Assigned range 192.168.10.100 To 192.168.10.200 Client Servers And fixed peripherals Assigned Range 192.168.10.1 To 192.168.10.40 Client Network 192.168.10.0/24 MFIM + iPECS Devices 10.10.10.0/24 Separate Broadcast Domains

  7. IP Network Scenario 7 iPECS Isolated Topology Usage: MFIM IP and all its devices may be on the same IP network. The major item defining the IP topology is the router in the middle of the It is not often employed (but sometimes installed to limit the effect of iPECS on a network) Advantages: Like a VLAN it segregates routable Networks and breaks up the broadcast domain (less network congestion) Disadvantages: Requires an additional Router be installed, Note: The iPECS part of the network is a flat topology, allowing devices outside the Router to connect as local-remote devices (which don’t use an IP channel). The LAN edge router may need a static route to direct voice traffic back to the iPECS router. MFIM 192.168.1.2 Ext 702 Remote or Local-Remote mode 192.168.33.12 LGCM8 192.168.1.20 192.168.33.253 Edge Router 192.168.33.254 192.168.1.254 iPECS Isolated Topology ‘Internal’ Router Ext 701 192.168.1.11 Ext 700 192.168.1.10 Client PCs Assigned range 192.168.33.100 To 192.168.33.200 Client Servers And fixed peripherals Assigned Range 192.168.33.1 To 192.168.33.40 Client Network 192.168.33.0/24 Separate Broadcast Domains 192.168.1.0/24 MFIM + iPECS Devices

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