AT-3675 Bridge
■ The CentreCOM™ AT-3675 SNMP-Manageable Learning Bridge allows you to interconnect two Ethernet sub-networks. Each sub-network may be IEEE 802.3 10BASE2 (thin) Ethernet or 10BASE5 (thick) Ethernet or pre-802.3 Ethernet. Unshielded Twisted Pair (UTP) can also be connected to the bridge through a transceiver. The AT-3675 bridge transparently forwards packets. Since the bridge operates at the Media ACcess (MAC) level, all higher level protocols, such as Transmission Control Protocol (TCP), DECnet™ and NetWare®, are passed unaffected.
■The four repeater rule does not apply across the bridge. The effective length of a Local Area Network (LAN) can be increased by adding a CentreCOM AT-3675 SNMP-Manageable Learning Bridge. Placing bridges at natural boundaries of the workgroups increases the network performance at each segment by diminishing network traffic. The reliability of a large network can be enhanced by a bridge and allows sub-networks of different media types to be interconnected.
■The CentreCOM AT-3675 is self-learning, adjusting to reconfiguration of sub-nets to provide continuous isolation of local traffic. The AT-3675 provides packet filtering at 25,000 Packets Per Second (PPS) and sustained forwarding at 12,500 PPS. Its filter table supports 2,048 MAC-level station addresses.
■Multiple AT-3675 bridges can be used as backups in case of network failure. The AT-3675 supports the IEEE 802.1 Spanning Tree Protocol (STP), which provides redundancy link management and network loop checking. STP allows backup bridges to provide fault tolerant networks by placing the bridges that form loops into a standby state until an active bridge fails. When failure occurs, the network is reconfigured and any loops are eliminated. This network reconfiguration occurs without impacting the network users or the applications.
●Management:
■Simple Network Management Protocol (SNMP) is supported by the AT-3675. The bridge can be monitored and manipulated by many SNMP-compatible management stations. Since it supports the second version of the Management Information Base (MIB-II) and Bridge MIB, parameters of the AT-3675 can be managed under SNMP including custom filtering, static forwarding entries and STP.
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AT-3675 、 AT-MX25F 、 AT-MX26F 、 AT-210T 、 AT-210TS 、 AT-MX20T 、 AT-MX10 、 AT-MX10S 、 AT-36E1 、 AT-36E2 、 AT-36E3 、 AT-36E4 、 AT-36E8 、 AT-36C1 、 AT-36C2 、 AT-36C3 、 AT-36C4 、 AT-36C8 |
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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1996/3/8 |
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890 KB |
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