User manual TRENDNET TEG-S2600I

[. . . ] INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1. 2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1. 3 INITIAL SET UP FOR MANAGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1. 3. 1 out-of-band Terminal-mode Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Press "Apply" to continue next page. This page will display the result of the pinging IP . It continues updating the "Reply Counts" when the ping packets are sending. If the reply counts remain zero after webpage reload stops, it could mean that the pinged host of this IP does not exist. - 49 - 2. 5. 14 Single IP This switch provides a new management tool for user to manage a group of LAN switches by an IP agent method. "Single IP" is the name, meaning that the administrator can access other network devices through one single IP device. There are two management modes , "Agent mode" and "Stacking mode", to utility the function. Different from the method of router's NAT (from virtual IP domain to real IP domain), single IP provides a reverse access (from real IP domain to virtual IP domain) by an IP-forwarding technology. With this IP-agent method, network administrator can remotely control his far-side hosts without being there, for he can access the private domain hosts through the agency of one real IP switch with "Single IP". There are maximum 32 sets of information of network devices stored in the single IP switch and 16 sets in Stacking switch. Basically these network devices should provide http or telnet service for the single IP switch to forward those protocol packets; meanwhile SNMP protocol can be also passed through if they support SNMP service. More over, this single IP switch has no exclusiveness, meaning that administrator can group up network devices of any type (router, switch, server. . . ) or brand without worrying their incompatibility. However, for stacking switch, only the switches of the same model can detect each other and transfer information to their partner, so it won't support other network devices. This is the major difference between single IP agent mode and stacking mode. Web UIs of "Agent Management" and "Stacking Management" look similar. If user disables the IP agent function, that is, he sets the management mode to "Agent Slave" or "Stacking Slave" in the IP setting webpage, this item will not show up in the main menu. - 50 - 2. 5. 14. 1 Agent Management Agent Control Port: The control port defines the specific TCP/UDP port the single IP switch is listening, which the agent manager sends its command to. Agent manager use this specific port to tell single IP switch to change the current forwarding target host. Ignore the default settings of "Agent Control Port" unless user has the special need for this protocol port, such as virtual server. The default port number is 28019. Add/Edit/Delete : To add a member, fill up the IP and name in "IP address" and "Host Name", then press "Add/Edit". To edit a member's host name, select the member in the list and the IP and name will be shown on the right. To remove a member, just select the member and press "Delete" Launch Manager : This button launches the Stacking manager. - 51 - 2. 5. 14. 2 Agent Manager A floating menu will show up after clicking "Launch Agent Manager" in the agent management. The agent manager holds 32+1 slots in the floating menu. The most top slot (zero slot) displays the master switch IP and its relative location. "Remote Agent" means that the user comes from the other IP domain than the managed ones, while "Local Agent", that user comes form the same one as the managed ones. There are differences between "Remote Agent" and "Local Agent". The "Local Agent", we refer to it as "Local Single IP", uses a method like URL link and the main browser window will directly jump to the target host. [. . . ] Trunking between stacking members may cause the spanning tree protocol (STP) to alter the topology and change the routed ports. If it happens, Giga port traffic may break and the stacking mechanism will fail. For non-stacking member, it has no such limitation. - 143 - 5. 5 Compatibility on Virtual Server and "Single IP" There are practical applications on combination of virtual server and single IP. Network administrator prefers a router as unique gateway to Internet while he likes to use the "Single IP" to manage his network hosts both from LAN and WAN. [. . . ]