Consistency Considerations For Ports In An Aggregation; Approaches To Link Aggregation - 3Com MSR 50 Series Configuration Manual

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HAPTER INK
Consistency
Considerations for Ports
in an Aggregation
Approaches to Link
Aggregation
O
GGREGATION VERVIEW
To participate in traffic sharing, member ports in an aggregation must use the
same configurations with respect to STP, QoS, GVRP, VLAN, port attributes, MAC
address learning, and so on, as shown in the following table.
Table 8 Consistency considerations for ports in an aggregation
Category
STP
QoS
GVRP
VLAN
Port attribute
MAC address
learning
Two ways are available for implementing link aggregation, as described in
"Manual Link Aggregation" on page 347
page 348.
Considerations
State of port-level STP (enabled or disabled)
Attribute of the link (point-to-point or otherwise) connected to the port
Port path cost
STP priority
Maximum transmission rate
Loop protection
Root protection
Port type (whether the port is an edge port)
Traffic policing
Traffic shaping
Congestion avoidance
Physical interface rate limiting
Strict priority (SP) queuing
Weighted round robin (WRR) queuing
Hardware weighted fair queuing (HWFQ)
Port priority
Policy setting on the port
Port priority trust mode
Flow template
GVRP state on ports (enabled or disabled)
GVRP registration type
GARP timers
VLANs carried on the port
Default VLAN ID on the port
Link type of the port, which can be trunk, hybrid, or access
Port rate
Duplex mode
Up/down state of the link
Isolation group membership of the port
MAC address learning capability
Setting of maximum number of MAC addresses that can be learned on
the port
Forwarding of frames with unknown destination MAC addresses after the
upper limit of the MAC address table is reached
and "Static LACP Link aggregation" on