Recovering Your Xrn Network; Unit Failure; Interconnect Failure; How Xrn Interacts With Other 3Com Switches - 3Com 5500-SI Configuration Manual

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PPENDIX OM
Recovering your XRN
Network

Unit Failure

Interconnect Failure

How XRN Interacts
with other 3Com
Switches
XRN
In the event of a failure within your XRN network, 3Com recommends that you
follow the recommendations below.
The steps below outline the procedure to recover your XRN network in the event
of a unit failure within your Distributed Fabric.
1 Obtain a Switch and ensure it is installed with the same software version as the
failed Switch.
2 Initialize the new Switch so it is operating with its factory default settings.
3 Connect the new Switch to the operational Switch to form the Distributed Fabric.
4 IP interfaces and VLANs will be converged between the Switches, that is, IP
interfaces and the creation of the VLANs is done automatically on the new Switch.
However, any port-based configuration must be done manually.
5 If any Switch features, for example, IGMP snooping or passwords are not set to
default state then these should be reset after the new Distributed Fabric has been
formed.
The steps below outline the procedure to recover your XRN network in the event
of an interconnect failure within your Distributed Fabric.
1 Obtain a new cable.
2 Install the new cable.
This section provides guidelines on connecting legacy and new 3Com Switches
(including non-XRN enabled Switches) to an XRN Distributed Fabric. Table 694 lists
the features supported by the Switches that can be used when connecting to a
Distributed Fabric.
For detailed information on how the Switch features interact with XRN , refer to
the "How XRN Interacts with other Features" on page 681.
Table 694 Features supported by 3Com Switches connecting to an XRN Distributed Fabric
3Com Switch
3Com Switch 1100 Family
3Com Switch 3300 Family
3Com Switch 4200 Family
3Com Switch 4400 Family
3Com Switch 3800 Family
3Com Switch 4900 Family
3Com Switch 40x0 Family
3Com Switch 4005 Family
3Com Switch 4007 Family
3Com Switch 5500 Family
3Com Switch 5500G Family No
3Com Switch 7700 Family
3Com Switch 8800 Family
Resilien
t STP/
Links RSTP MSTP
Yes Yes No
Yes Yes No
Yes Yes No
Yes Yes No
No Yes No
Yes Yes No
Yes Yes No
No Yes No
No Yes No
No Yes No
Yes No
No Yes Yes
No Yes Yes
Manual Link
Aggregation LACP Link
s Aggregations
Yes No
Yes No
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes No
Yes Yes
Yes Yes
Yes No
Yes No