through R6 - irrespective of whether they want to view the surveillance traffic or not. The
traffic is compounded when additional cameras are added to the network. End result is that
users R1 through R6 see the network as heavily loaded and simple day to day operations
may appear sluggish.................................................................................................................200
FIGURE 116 - Using IGMP-L2 on Magnum 6K family of switches, a Layer 2 network can
minimize multicast traffic as shown above. Each switch has the IGMPL2 turned on.
Each switch can exchange the IGMP query message and respond properly. R4 wants to
view surveillance traffic from T1. As shown by (1), a join request is sent by R4. Once the
join report information is exchanged, only R4 receives the video surveillance traffic, as
shown by (2). No other device on the network gets the video surveillance traffic unless they
issue a join request as well. ......................................................................................................201
FIGURE 117 – Enabling IGMP and query the status of IGMP......................................................... 203
FIGURE 118 – Displaying IGMP groups............................................................................................204
FIGURE 119 – Configuring IGMP..................................................................................................... 207
FIGURE 120 - Setting IGMP-L2....................................................................................................... 207
FIGURE 121 – GVRP operation – see description below..................................................................... 210
FIGURE 122 – VLAN Assignment in GVRP enabled switches. Non GVRP enabled switches
can impact VLAN settings on other GVRP enabled switches.................................................211
FIGURE 123 – Port settings for GVRP operations .............................................................................212
FIGURE 124 – Command to check for dynamically assigned VLANs ................................................213
FIGURE 125 – Converting a dynamic VLAN to a static VLAN.....................................................213
FIGURE 126 – GVRP options...........................................................................................................214
FIGURE 127 – GVRP configuration example ....................................................................................216
FIGURE 128 – Configuring SNMP – most of the command here are SNMP v3 commands................ 230
FIGURE 129 – Configuring RMON groups........................................................................................231
FIGURE 130 – Predefined conditions for the relay................................................................................ 236
FIGURE 131 – Setting up the external electrical relay and alerts...........................................................239
FIGURE 132 – setting SMTP to receive SNMP trap information via email......................................... 244
FIGURE 133 – Optimizing serial connection (shown for Hyper Terminal on Windows XP). The
highlighted fields are the ones to change as described.................................................................. 244
FIGURE 134 – History commands ......................................................................................................246
FIGURE 135 – Setting custom prompts................................................................................................247
FIGURE 136 – Using the ping command............................................................................................. 247
FIGURE 137 – Event log shown on the screen......................................................................................249
FIGURE 138 – Using exportlog to export the event log information...................................................... 250
FIGURE 139 – Listing of severity - sorted by subsystem and severity .....................................................253
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