3com 5500-SI Manual De Usuario
672
A
PPENDIX
D: 3C
OM
XRN
What is XRN?
XRN (eXpandable Resilient Network) is a 3Com LAN technology built into the
software and hardware of your Switch that offers high availability, scalability, and
connectivity.
software and hardware of your Switch that offers high availability, scalability, and
connectivity.
Supported Switches
XRN is supported by the 3Com Operating System on the following Switches
installed with Version 1.0 software or later:
installed with Version 1.0 software or later:
XRN is standards based. The 3Com only proprietary technology operates across
the Fabric Interconnect ports.
the Fabric Interconnect ports.
XRN Terminology
This section contains a glossary of the common XRN terminology.
eXpandable Resilient
Network (XRN)
XRN is developed by 3Com that allows you to implement fault tolerant, high
performance and scalable multilayer networks.
performance and scalable multilayer networks.
Fabric Interconnect
Fabric Interconnect is the interconnection between XRN Switches that form the
Distributed Fabric.
Distributed Fabric.
XRN Distributed Fabric
(Distributed Fabric)
XRN Distributed Fabric is the term used to describe interconnected devices
supporting XRN.
supporting XRN.
Distributed Device
Management (DDM)
DDM allows Switches in the XRN Distributed Fabric to behave as a single
managed entity, irrespective of the form factor or Switch deployed. For further
information see page 673.
managed entity, irrespective of the form factor or Switch deployed. For further
information see page 673.
Distributed Link
Aggregation (DLA)
DLA is the configuration of Aggregated Links across interconnected devices in
the Distributed Fabric. 3Com and non-3Com devices can connect to the XRN
Distributed Fabric using DLA. For further information see page 674.
the Distributed Fabric. 3Com and non-3Com devices can connect to the XRN
Distributed Fabric using DLA. For further information see page 674.
Distributed Resilient
Routing (DRR)
DRR provides distributed routing and router resiliency across an XRN Distributed
Fabric. For further information see page 673.
Fabric. For further information see page 673.
Table 690 3Com Switch 5500 Support for XRN Distributed Fabric
3Com Switch
XRN support
Switch 5500-SI 28-Port (3CR17151-91)
Only supports DDM and DLA
*
* Distributed Device Management, Distributed Link Aggregation
Switch 5500-SI 52-Port (3CR17152-91)
Only supports DDM and DLA
Switch 5500-EI 28-Port (3CR17161-91)
Full XRN functionality
Switch 5500-EI 52-Port (3CR17162-91)
Full XRN functionality
Switch 5500-EI PWR 28-Port (3CR17171-91)
Full XRN functionality
Switch 5500-EI PWR 52-Port (3CR17172-91)
Full XRN functionality
Switch 5500-EI 28-Port FX (3CR17181-91)
Full XRN functionality
Switch 5500G-EI 24-Port (3CR17254-91) (no PSU)
Full XRN functionality
Switch 5500G-EI 48-Port (3CR17255-91) (no PSU)
Full XRN functionality
Switch 5500G-EI 24-Port (3CR17250-91) (non-PoE
PSU)
PSU)
Full XRN functionality
Switch 5500G-EI 48-Port (3CR17251-91) (non-PoE
PSU)
PSU)
Full XRN functionality
Switch 5500G-EI 24-Port (3CR17252-91) (PoE PSU)
Full XRN functionality
Switch 5500G-EI 48-Port (3CR17253-91) (PoE PSU)
Full XRN functionality