3Com 6000 manual Known Problems

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22LANPLEX® 6000 EXTENDED SWITCHING SOFTWARE

Roving Analysis frames over a remote Fast Ethernet connection are truncated if greater than 1495 bytes.

ESMs do not support IGMP snooping. IP multicast traffic should be filtered using a packet filter to avoid unwanted traffic.

EFSM packet filters can access packet data through byte 64 in the packet.

Bridging and routing performance are degraded on a Roving Analysis monitor port.

Known Problems

The following software problems are identified at this release:

Roving Analysis cannot monitor outgoing routed packets.

LANplex system software does not route FDDI multicast frames larger than 1500 bytes (that is, frames that require fragmentation).

When you install software using the SNMP lpsFt MIB, the install fails unless you specify a user password.

When you install software from an unreachable device using the SNMP lpsFt MIB, the system reports the incorrect status “statusFileNotFound”, rather than the correct status “statusRemoteUnreachable”.

When you install software using the SNMP lpsFt MIB and you specify an invalid username/password pair, the system reports the incorrect status ”statusFileNotFound”, rather than the correct status “statusUserAuthFailed”.

An NVDATA save procedure fails if it occurs at the same instant when a MAC address is learned or aged out of the slot’s MAC address table.

The FDDI MAC RxFrames, TxFrames, Rxbytes, and Txbytes statistics might report inaccurate values.

FCS error statistics report inaccurate values on the TMM’s Fast Ethernet port.

The ESM and TRSM incorrectly report transmit filter statistics.

The ESM and TRSM FDDI packet filters cannot access packet data beyond byte 16 in the packet.

If both the Ethernet and the FDDI interfaces have the same class of IP address, their subnet masks must be the same, although the Administration Console allows you to enter different subnet masks for these interfaces. If

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Contents Lanplex 6000 Software Installation Release Notes LANplex Extended Switching Software Revision December 2United States Government Legends Contents IP Multicast Routing Overview Lanplex 6000 Extended Switching Software Updating Your System Software Remove diskette #2 using the following command Remove diskette #1 using the following commandRemove diskette #3 using the following command Remove diskette #4 using the following command Following files should be in your /usr/lp6000R directoryMibs folder README.textLMM+ to the LANplex 6000 system User Documentation801-00192-000 Individual modules ship with their installation guides801-00264-000 801-00190-000Software Changes What’s New atRevision 8.0.0? Corrections implemented at this releaseWhat’s New at Revision 8.0.0? Interface state is displayed as down if Interface state is displayed as up ifSystem upTime is displayed New Fddi MAC Statistic Added From Fddi NetworkNew Fields Added to Fddi MAC Summary and Detail Example summary display of Fddi MAC informationExample detail display of Fddi MAC information SrHopLImit System Issues Known Problems Received ftpCommand Quit not completed errno Lanplex 6000 Extended Switching Software Snmp MIB Files Support for the Fddi Switching Module FSM Efsm Lanplex 6000 Extended Switching Software Country Telephone Number Japan Lanplex 6000 Extended Switching Software IP Multicast Routing Disabling Igmp Enabling and Disabling DvmrpEnabling Methods to make this determinationMulticast Administering IPInterfaces Rate Limit Example multicast interface configurationDisabling Multicast Interfaces Enabling Multicast InterfacesAdministering Multicast TunnelsRemoving a Multicast Tunnel Defining a To define a multicast tunnel Multicast TunnelTunnel is removed Displaying Routes Table A-1 describes the fields in the route displayDisplaying the Multicast Cache You are prompted for the multicast source addressFollowing display shows the multicast cache configuration Table A-2 describes the fields in the CacheDisplay Appendix a IP Multicast Routing
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6000 specifications

The 3Com 6000 series, launched in the late 1990s, was a significant advancement in networking technology, designed to meet the growing demands of enterprise-level networking. This series provided powerful solutions for businesses seeking reliable, efficient, and scalable networking capabilities.

At its core, the 3Com 6000 series featured a modular design, allowing companies to customize their networks according to specific needs. This flexibility meant that organizations could add or replace components as their networking requirements evolved, ensuring investment protection and a tailored approach to connectivity. The ability to scale was particularly important for businesses that anticipated growth or change in operational demands.

One of the standout features of the 3Com 6000 was its advanced switching capabilities. The series employed high-performance switching technologies that supported various protocols, including Fast Ethernet and Gigabit Ethernet. This versatility made it suitable for diverse environments, from small offices to large corporate settings. The 3Com 6000 switches were engineered to deliver high throughput and low latency, crucial for applications requiring real-time data transfer.

The series also supported a range of network management tools, enhancing operational efficiency. With SNMP (Simple Network Management Protocol) support, network administrators could easily monitor and manage network performance, troubleshoot issues, and configure devices from a centralized location. This capability significantly streamlined network operations, reducing downtime and optimizing resource allocation.

Security was another significant concern addressed by the 3Com 6000. The series incorporated robust security features, including access control lists (ACLs) and VLAN (Virtual Local Area Network) support. These features allowed network administrators to segment traffic and enforce security policies, protecting sensitive data and ensuring compliance with organizational standards.

Moreover, the 3Com 6000 series was designed with energy efficiency in mind, reflecting a growing awareness of the environmental impact of IT infrastructure. By implementing power-saving features, the series helped organizations reduce their overall energy consumption while maintaining optimal network performance.

In summary, the 3Com 6000 series stood out for its modularity, advanced switching capabilities, extensive management tools, strong security features, and energy efficiency. It represented a forward-thinking solution for enterprises aiming to build robust network infrastructures capable of supporting a wide range of applications and services. As organizations increasingly relied on networked systems, the 3Com 6000 played a crucial role in shaping the landscape of enterprise networking.