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Management Information Base (MIB) Support
The 9E423-36 provides MIB support including:
• RMON (RFC-1757)
• IETF MIB II (RFC-1213)
• IETF Bridge MIB (RFC-1493)
and a host of other Cabletron Enterprise MIBs.
For a complete list of supported MIBs, refer to the release notes provided in the
NOTE
9E423-36 package.
INB
The 9E423-36 attaches to INB2 of the SmartSwitch 9000 Backplane. The INB has a
capacity of 2.5 Gbps to interconnect SmartSwitch 9000 modules supporting
Ethernet, FDDI, Token Ring, WAN and ATM networks. The INB transports fixed
length data blocks between modules in the SmartSwitch 9000 hub using a Time
Division Multiplexing (TDM) design. Within the INB there is a 64-bit wide data
bus and an eight-bit control management bus. Each module that attaches to the
INB has an INB Network Interface Block (NIB). The INB NIB converts canonical
frames to fixed length data blocks for transmission onto the INB. For data blocks
received from the INB, the INB NIB reassembles the data blocks received from the
INB back into canonical frames for transmission to the SmartSwitch ASIC and
ultimately to the front panel port. The INB can time slice its bandwidth using one
of three methods:
• The default method is standard TDM round-robin bandwidth arbitration.
• The second method is for modules to reserve a specific amount of bandwidth
using MONARCH, Cabletron's INB Bandwidth Arbitrator.
• The third method permits the lowest slot number to use any bandwidth not
used by the previous two methods.
LANVIEW LEDs
The 9E423-36 uses LANVIEW – the Cabletron Systems built-in visual diagnostic
and status monitoring system. With LANVIEW LEDs, you can quickly identify, at
a glance, system status as well as the device, port, and physical layer status. Two
LEDs indicate the transmission and reception of data from the INB SmartSwitch
9000 backplane connection. Each of the 12 Ethernet front panel ports features two
LEDs per port to indicate the port's Administrative status (enabled/disabled),
LINK status (Link/Nolink), and Data Activity (receiving and transmitting data).
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