IBM SG24-4817-00 manual This soft copy for use by IBM employees only

This soft copy for use by IBM employees only.

-2-Port Fiber RI/RO UFC

This UFC enables switching between token-ring segments 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 token-ring attached users to interoperate with ATM-attached devices that comply with the ATM Forum LAN Emulation specifications:

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Interface: SC

Cabling: Multimode fiber

Supports token-ring/IEEE 802.5 emulated LAN types.

-1-Port RMON UFC

−Support up to 1792 filter table entries per port, but no more than 10,000 filter table entries per module. These filter table entries can be either MAC addresses or source-route descriptor entries. These entries can be aged-out based upon configurable parameters at the port and module level.

−Support a bandwidth aggregation feature, TokenPipe, which allows different LAN switching modules to be connected by up to four full-duplex connections, providing up to 128 Mbps of bandwidth between 8272 switching modules.

−Support source route bridging that is fully compatible with existing source route bridges.

−Support source route switching, in which frames are forwarded based on destination MAC addresses for locally attached stations and based on the routing information within the token-ring frame for non-locally attached stations (as is the case with source routing bridges to a maximum of seven bridge hops).

Note

If the module is configured for source route switching, all token-ring LAN ports and emulated token-ring LAN ports share the same ring number.

−Gather statistics by:

-Port

-Connected station

-Switch

−Support Plug-and-Play installation by automatically initializing as a multiport 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.

Each port automatically identifies what kind of token-ring connection it has, determining whether it is:

Chapter 4. IBM 8285 ATM Modules 73