3Com SuperStack 4 - Page 426

438 APPENDIX D: 3COM XRN
How XRN Interacts
with other Features
This section provides supplementary information on how XRN interacts with other
software features supported by your Switch.
VLANs Figure 109 shows a single aggregated link, created automatically via LACP,
connecting the Switch 5500G-EI stack to the Distributed Fabric. The Distributed
Fabric will take its VLAN membership from a port within the Switch 5500G-EI
stack .
If the Fabric Interconnect fails the aggregated link will split, creating two separate
aggregated links (as shown in
Figure 110). If the ports within the Switch 5500G-EI
stack each have different VLAN membership, this will mean the two newly formed
aggregated links will also have different VLAN membership. This will result in the
different VLANs not being able to communicate.
3Com recommends that you set individual ports that are to be members of an
aggregated link to the same VLAN membership. This ensures communication
between all VLANs at all times.
SuperStack 3 Switch
3300 Family
Yes Yes No Yes No
SuperStack 3 Switch
4200 Family
Yes Yes No Yes Yes
SuperStack 3 Switch
4400 Family
Yes Yes No Yes Yes
SuperStack II Switch
3800
No Yes No Yes Yes
SuperStack 3 Switch
4900 Family
Yes Yes No Yes Yes
3Com Switch 40x0
Family
Yes Yes No Yes Yes
3Com Switch 4005 No Yes No Yes Yes
3Com Switch 4007 No Yes No Yes No
3Com Switch 5500
Family
No Yes No Yes Yes
3Com Switch 5500G
Family
No Yes No Yes Yes
3Com Switch 7700 No Yes Yes Yes No
3Com Switch 8800 No Yes Yes Yes No
3Com Switch
Resilient
Links
STP/
RSTP
MSTP
Manual Link
Aggregations
LACP Link
Aggregations