Bridge Mpla Mode - 3Com SuperStack II 9300 Command Reference Manual

C 12: M
324
HAPTER ULTI

bridge mpla mode

3500
9000
9400
3900
9300
P L A (MPLA)
OINT INK GGREGATION
Enables or disables the MultiPoint Link Aggregation feature on the
switch.
Valid Minimum Abbreviation
b mp m
Important Considerations
Use only CoreBuilder 9400 systems as MPLA core switches.
The core of a multipoint aggregated link must contain two 9400
switches, whose out-of-band management ports also must be directly
connected.
Use only Switch 3900 devices as edge switches.
Each MPLA edge switch must have at least one physical link to each
core switch. Multiple trunked links may connect an edge and core
switch, for added bandwidth
Use only Gigabit Ethernet links between MPLA core switches and
edge switches.
All links from an edge switch to the MPLA core switches must be
aggregated (trunked) at the edge switch.
While the Trunk Control Message Protocol (TCMP) is optional in
point-to-point trunks, you must configure it to run on all of the
point-to-multipoint links between MPLA edge switches and core
switches.
You can enable these features in MPLA edge switches, but not in
MPLA core switches:
Spanning Tree
IGMP snooping
Resilient links
Roving analysis port
When you configure a new MPLA core switch, define MPLA
configurations and reboot the switch before you define other trunks
and VLANs on the switch.