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- 2-Port Fiber RI/RO UFC
This UFC enables switching between token-ring segments as far as 2
km away.
•
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:
•
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