EMM-E6 Ethernet User's Guide

ETHERNET CHANNELS A, B, C, D, E, and F
EMM-E6 User’s Guide 1-15
FDDI and Token Ring Modules - The EMM-E6 recognizes the
following FDDI and Token Ring modules, but the EMM-E6 management
does not provide control or statistics.
• CRM-3T
• SNACMIM
• TRMIM-32A
• TRMIM-34A
• TRRMIM-F2T
• TRRMIM-F3T
With TRMMIM version 2.02 or greater, both Token Ring and Ethernet
modules can reside in the same chassis and support physical management
capabilities of the Token Ring MIMs using the TRMMIM as the Token
Ring management module. Without the TRMMIM, the EMM-E6 will
only recognize the Token Ring modules.
TPXMIM - The EMM-E6 also supports Cabletron’s family of Twisted
Pair Switching Media Interface Modules (TPXMIMs). These modules
provide board or individual port connectivity to any MMAC-FNB
Ethernet channel (A, B, or C) with full SNMP management including
RMON. All ports initially default to Channel B upon power up and
require a Management Information Base (MIB) change to access any
other channel.
1.4.4 Ethernet Channel D
Ethernet Channel D is provided by one of the two redundant EPIM ports
on the front panel of the EMM-E6. These EPIM ports provide the
capability for the use of a variety of Ethernet transmission media
connections, including twisted pair, fiber optic, and thick or thin Ethernet
coaxial cable.
Either one of the EPIM ports can act as the bridge port to the external
network. When the EMM-E6 is first powered up, the EPIM 1 port acts as
the bridge port and the EPIM 2 port is off. Using the network
management capabilities of the EMM-E6, you can reverse this
configuration to have the EPIM 2 port act as the primary bridge port.
CH1Book Page 15 Wednesday, March 20, 1996 7:48 AM