Dell PowerConnect M6220 Configuration Guide - Page 48

roup id, in Global Configuration mode. When Simple Mode - factory reset

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LACPDUs from the partner and negotiate the Link Aggregation. This means that the external (uplink) ports will be re-enabled once LACP is detected on the active uplink without user intervention. When configured in "off" mode, links on all but one uplink port in that Aggregator group will be forced to DOWN. In this case, lowest numbered uplink port will be active, and all other ports will be forced to "DOWN" state. To support NIC teaming failover on the server blades, all the internal ports in the Aggregator Group will be brought DOWN, if the links on all the uplink ports in that Aggregator Group are DOWN. As soon as one or more of the uplink ports come UP, all the internal ports will be brought UP again. This is the default behavior with respect to Link Dependency. You can also configure the minimum number of physical uplinks ports to be active for an Aggregator Group to be active. By default this (minimum number of uplinks ports to be active) is 1, which means if there is at least 1 external port UP in the Aggregator Group, all the internal ports will be kept open. Internal ports in the Aggregator Group will be downed only when all the mapped external ports are down or disconnected. For example if you configure 1/g1, 1/g2, 1/g3, 1/g4, 1/g17, 1/g18 as members of Group 1, and configure that the minimum number of uplink ports to be active as '2', all the internal ports of the Aggregator Group will be brought DOWN if any one of the links on 1/g17 or 1/g18 is DOWN. As soon as the links on both 1/g17 and 1/g18 are UP, the internal ports shall be brought UP again. • A new configuration mode, Aggregator Group Mode, has been created. You can enter this mode using the command port-aggregator group in Global Configuration mode. When Simple Mode is enabled, negotiation, speed, duplex, vlan, and mtu configurations are allowed on the Aggregator Group but not on the individual ports. These configuration are applied to all the member ports of the Aggregator Group. • Operational mode is set to Normal mode on resetting the configuration to Factory defaults from the software boot menu. The switch will boot up in this mode unless you select a different mode from the setup wizard. • If the new mode is selected from the Dell Setup wizard, or if the mode is selected from the CLI/Web/SNMP user interfaces, the mode is effective only after the next reload. • When you change the operational mode, a trap is generated apart from logging a message. • The switch maintains two separate config files, one for Simple mode and another for Normal mode. The selection of the configuration file while applying the configuration is based on the mode selection. If there is no saved configuration, then the default configuration of the selected mode is applied. • Simple mode allows you to create Aggregation Groups (Figure 3-3) where internal ports and external ports can be configured in a separate broadcast domain. • Security-related configurations: dot1x, RADIUS, TACACS+ are allowed when the switch is operating in Simple Mode. • The switch handles traffic in the following way when in Simple Mode: • Ingress filtering is enabled on all ports. This means that tagged traffic would be dropped if the incoming port is not a member of the incoming packet's VLAN. • Untagged traffic should be switched and untagged at the egress. 48 Switching Configuration

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48
Switching Configuration
LACPDUs from the partner and negotiate the Link Aggregation. This means that the external (uplink)
ports will be re-enabled once LACP is detected on the active uplink without user intervention. When
configured in “off” mode, links on all but one uplink port in that Aggregator group will be forced to
DOWN. In this case, lowest numbered uplink port will be active, and all other ports will be forced to
“DOWN” state.
To support NIC teaming failover on the server blades, all the internal ports in the Aggregator Group will
be brought DOWN, if the links on all the uplink ports in that Aggregator Group are DOWN. As soon as
one or more of the uplink ports come UP, all the internal ports will be brought UP again. This is the
default behavior with respect to Link Dependency. You can also configure the minimum number of
physical uplinks ports to be active for an Aggregator Group to be active. By default this (minimum
number of uplinks ports to be active) is 1, which means if there is at least 1 external port UP in the
Aggregator Group, all the internal ports will be kept open. Internal ports in the Aggregator Group will be
downed only when all the mapped external ports are down or disconnected. For example if you configure
1/g1, 1/g2, 1/g3, 1/g4, 1/g17, 1/g18 as members of Group 1, and configure that the minimum number of
uplink ports to be active as ‘2’, all the internal ports of the Aggregator Group will be brought DOWN if
any one of the links on 1/g17 or 1/g18 is DOWN. As soon as the links on both 1/g17 and 1/g18 are UP, the
internal ports shall be brought UP again.
•
A new configuration mode, Aggregator Group Mode, has been created. You can enter this mode using
the command
port-aggregator group <g
roup id
>
in Global Configuration mode. When Simple Mode
is enabled, negotiation, speed, duplex, vlan, and mtu configurations are allowed on the Aggregator
Group but not on the individual ports. These configuration are applied to all the member ports of the
Aggregator Group.
•
Operational mode is set to Normal mode on resetting the configuration to Factory defaults from the
software boot menu. The switch will boot up in this mode unless you select a different mode from the
setup wizard.
•
If the new mode is selected from the Dell Setup wizard, or if the mode is selected from the
CLI/Web/SNMP user interfaces, the mode is effective only after the next reload.
•
When you change the operational mode, a trap is generated apart from logging a message.
•
The switch maintains two separate config files, one for Simple mode and another for Normal mode.
The selection of the configuration file while applying the configuration is based on the mode selection.
If there is no saved configuration, then the default configuration of the selected mode is applied.
•
Simple mode allows you to create Aggregation Groups (Figure 3-3) where internal ports and external
ports can be configured in a separate broadcast domain.
•
Security-related configurations: dot1x, RADIUS, TACACS+ are allowed when the switch is operating
in Simple Mode.
•
The switch handles traffic in the following way when in Simple Mode:
•
Ingress filtering is enabled on all ports. This means that tagged traffic would be dropped if the
incoming port is not a member of the incoming packet’s VLAN.
•
Untagged traffic should be switched and untagged at the egress.