Cabletron Systems EMM-E6 Ethernet manual Ethernet Channel D

ETHERNET CHANNELS A, B, C, D, E, and F

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.

1.4.4Ethernet 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.

EMM-E6 User’s Guide 1-15