FOUT - SORRY
Ik was te snel en te naief.
Dit ding is een Madge (oorsponkelijke eigenlijk van LANNET)
MultiNet LET-36, met mogelijkheden voor TokenRing-modules maar ook Ethernet (10 en 100 Mbps) en FDDI.
Het is in principe een hub-chassis, maar je kunt er ook switch-modules inplaatsen.
Het hangt dus helemaal van je modules af wat dit ding precies aankan.
Als je naar
www.lannet.com gaat, kom je trouwens bij Avaya terecht,
weer een andere club in netwerken. Ik denk dat de LET-reeks met
name toch vanwege de TokenRing-mogelijkheden naar Madge is gegaan.
Wat citaten :
Een citaat uit NetworkComputing Magazine
LANNET MultiNet LET-36 LANswitch
LANNET's LET-36 chassis can accept switching and nonswitching modules. The result is a product that is not quite a hub in the classic sense, but neither is it in the same category as the other switching hubs.
The LET-36 has a high-speed channel on its backplane, as well as four Ethernet speed channels. The high-speed bus accommodates only Ethernet and Fast Ethernet modules. You can install a Wellfleet FDDI router module, but it interfaces only the four Ethernet buses. To go from FDDI to the switching fabric requires external cables to connect between the different modules that LANNET supports.
LANNET refers to its switching architecture as protocol-independent; that means no routing support and only topologies that use Ethernet frame styles. Unlike the other switches, the LET-36 doesn't support the spanning tree protocol. Instead, LANNET supports something it calls hardware-based redundant links. So use caution before adding this switch into a bridged network dependent on a spanning tree.
Because LANNET's switching modules include only Ethernet and Fast Ethernet, we were only able to test IPX and AppleShare protocols, which worked well. Configuring the LET-36 was difficult. LANNET has chosen to incorporate modules for a number of other vendors, each with their own configuration interface. On the positive side, LANNET's GUI configuration utility that runs under HP OpenView allows for easy configuration of virt ual LANs and the switching bus. You should know exactly what you're doing; the software provides no feedback on why certain operations cannot be completed.
For all its strangeness, the LET-36 is a fairly economical system. Many of the modules can support only a few addresses per port and are meant to be directly connected to end-user systems.
Een beschrijving van nogal complex geconfigureerde LET-36's in de praktijk :
The departmental networking is centered around four LANNET LET-36 Intelligent Hubs with multi-channel (4 Ethernet, 3 FDDI/TokenRing, and 2Gbps Hi-Speed) backplanes. The LET-36 Hubs containing segment-switchable 10-BaseT modules, Brouters, FOIRL modules and Terminal Servers are SNMP-compliant and are managed through MultiMan Network Management System.