8285 lan emulation specifications – IBM SG24-4817-00 User Manual
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5.1.10 8285 LAN Emulation Specifications
The 8285 is able alone to manage small LAN emulation networks.
Mechanisms and characteristics supported are:
5.1.10.1 LAN Emulation Server (LES) and Broadcast Unknown
Server (BUS)
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Number of LES: 2
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Maximum number of client registrations per LES: 128
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Maximum number of client registration for both LES: 128
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Multicast trees used by LES and BUS
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Each LES is using one control distribute VCC for the non-proxy LECs, and
one control distribute VCC for the proxy LECs
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Each BUS uses one multicast forward VCC for proxy and non-proxy LECs.
5.1.10.2 IP over ATM (RFC 1577)
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In-band management for SNMP/Telnet/Ping supported.
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Maximum transmission unit (MTU) size supported: 944 bytes.
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IP over ATM client imbedded.
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Maximum concurrent IP over ATM connections supported: 64.
5.1.10.3 LAN Emulation Client (ATM Forum-Compliant LAN
Emulation)
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Number of LECs: 2.
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Token-Ring LAN (802.5).
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Ethernet LAN (Ethernet 802.3 or Ethernet V2/DIX).
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Both LEC can run concurrently.
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Maximum number of connections supported per LEC: 30
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Maximum length of LANE information field (MTU):
Is depending on the the maximum service data unit (SDU) size supported on
the corresponding ELAN.
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ATM Workgroup Solutions: Implementing the 8285 ATM Switch