R2511-HP MSR Router Series Layer 2 - LAN Switching Configuration Guide(V5)

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Configuration restrictions and guidelines
When you configure a link aggregation group, follow these restrictions and guidelines:
• To ensure stable aggregation state and service continuity, do not change port attributes or class-two
configurations on any member port. If you must, make sure you understand its impact on the live
network. Any port attribute or class-two configuration change might affect the aggregation state of
link aggregation member ports and ongoing traffic.
• Avoid assigning ports to a static aggregation group that has reached the limit on Selected ports.
These ports will be placed in Unselected state to avoid traffic interruption on the current Selected
ports. However, a device reboot can cause the aggregation state of member ports to change.
Ethernet link aggregation configuration task list
Task Remarks
Configuring an aggregation group:
• Configuring a Layer 2 static aggregation group
• Configuring a Layer 3 static aggregation group
• Configuring a Layer 2 dynamic aggregation group
• Configuring a Layer 3 dynamic aggregation group
Perform one of the tasks.
Configuring an aggregate interface:
• Configuring the description of an aggregate interface or subinterface
• Configuring the MTU of a Layer 3 aggregate interface or subinterface
• Enabling link state traps for an aggregate interface
• Setting the expected bandwidth for an aggregate interface
• Shutting down an aggregate interface
• Restoring the default settings for an aggregate interface
Optional.
Configuring an aggregation group
You can choose to create a Layer 2 or Layer 3 link aggregation group depending on the ports to be
aggregated:
• To aggregate Layer 2 Ethernet interfaces, create a Layer 2 link aggregation group.
• To aggregate Layer 3 Ethernet interfaces, create a Layer 3 link aggregation group.
Configuration guidelines
• You cannot assign a port to a Layer 2 aggregation group if any of the features listed in Table 14 is
configured on the port.
Table 14 Features incompatible with Layer 2 aggregation groups
Feature Reference
MAC authentication MAC authentication in Security Configuration Guide
Port security Port security in Security Configuration Guide
Packet filtering Firewall in Security Configuration Guide