IBM SG24-4817-00 manual Module Feature Maximum Number of Ports Copper Fiber ATM, Ri/Ro

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This UFC provides one 100BaseFx Ethernet port for a connection to a 100BaseFx backbone segment or directly to a LAN station or server equipped with a 100BaseFx Ethernet adapter as far as 2 km away:

•

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Interface: ST

Cabling: Multimode fiber

-1-Port ATM 155 Mbps Multimode Fiber UFC

This UFC provides an ATM interface that enables Ethernet-attached users to interoperate with ATM-attached devices that comply with the ATM Forum LAN Emulation specifications:

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•

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Interface: SC

Cabling: Multimode fiber

Supports Ethernet/IEEE 802.3 emulated LAN types.

−Support up to 1790 active Ethernet addresses per port, but no more than 10,000 addresses per module. These addresses can be aged-out based upon configurable parameters at the port and module level.

−Support a bandwidth aggregation feature, EtherPipe, which allows different LAN switching modules to be connected by up to four full-duplex connections, providing up to 80 Mbps of bandwidth between 8271 switching modules.

−Gather statistics by:

-Port

-Connected station

-Switch

−Support Plug-and-Play installation by automatically initializing as a multi-port transparent bridge. This allows the module to learn the network addresses and eliminates all pre-installation configuration requirements. In most cases, however, you will eventually want to customize this initial configuration with such parameters as an IP address, SNMP parameters, and port filters.

Table 8 and Table 9 provide comparisons of the token-ring modules and the

Ethernet modules, respectively.

Table 8. A Comparison of 8285 Token-Ring LAN Switch Modules

Module					Feature				Maximum Number of Ports
								Copper		Fiber		ATM 155
										(RI/RO)
2	-slot 8272 ATM/LAN Switch Module					5208		16		4	2
3	-slot 8272 ATM/LAN Switch Module					5308		24		8	4
Table 9 (Page 1 of		2). A Comparison of 8285 Ethernet LAN Switch Modules
Module			Feature				Maximum Number of Ports
				10Base-T			10Base-F		100BaseT	100BaseF		ATM 155
2	-slot 8271 ATM/LAN		5212	20			6		2	2		2
Switch Module

Chapter 4. IBM 8285 ATM Modules 75