Dell 6200 SERIES manual Link Aggregation/Port Channels

Example #5: Show IGMP Snooping Querier Information for VLAN 10

console#show ip igmp snooping querier vlan 10

Vlan 10	: IGMP Snooping querier status
----------------------------------------------
IGMP Snooping Querier Vlan Mode		Enable
Querier	Election Participate Mode	Enable
Querier	Vlan Address	10.10.11.40
Operational State		Querier
Operational version		2
Operational Max Resp Time		10

Link Aggregation/Port Channels

This section shows how to use the Link Aggregation feature to configure port-channels via the Command Line Interface and the Graphical User Interface.

The Link Aggregation (LAG) feature allows the switch to treat multiple physical links between two end- points as a single logical link called a port-channel. All of the physical links in a given port-channel must operate in full-duplex mode at the same speed.

You can use the feature to directly connect two switches when the traffic between them requires high bandwidth and reliability, or to provide a higher bandwidth connection to a public network.

You can configure the port-channels as either dynamic or static. Dynamic configuration uses the IEEE 802.3ad standard, which provides for the periodic exchanges of LACPDUs. Static configuration is used when connecting the switch to an external switch that does not support the exchange of LACPDUs.

The feature offers the following benefits:

•Increased reliability and availability: If one of the physical links in the port-channel goes down, traffic is dynamically and transparently reassigned to one of the other physical links.

•Increased bandwidth: The aggregated physical links deliver higher bandwidth than each individual link.

•Incremental increase in bandwidth: A physical upgrade could produce a 10-times increase in bandwidth; LAG produces a two- or five-times increase, useful if only a small increase is needed.

Management functions treat a port-channel as if it were a single physical port.

You can include a port-channel in a VLAN. You can configure more than one port-channel for a given switch.

Switching Configuration

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