Administrator Guide

20 Active U Po128(Te 0/4-5)
U Te 0/1
Dell#
You can remove the inactive VLANs that have no member ports using the following command:
Dell#configure
Dell(conf)#no interface vlan
vlan-id
vlan-id — Inactive VLAN with no member ports
You can remove the tagged VLANs using the no vlan tagged vlan-range command. You can remove the untagged
VLANs using the no vlan untagged command in the physical port/port-channel.
Port Channel Interfaces
On an Aggregator, port channels are auto-congured as follows:
• All 10GbE uplink interfaces (ports 33 to 56) are auto-congured to belong to the same 10GbE port channel (LAG 128).
• Server-facing interfaces (ports 1 to 32) auto-congure in LAGs (1 to 127) according to the NIC teaming conguration on the
connected servers.
Port channel interfaces support link aggregation, as described in IEEE Standard 802.3ad. .
NOTE: A port channel may also be referred to as a link aggregation group (LAG).
Port Channel Denitions and Standards
Link aggregation is dened by IEEE 802.3ad as a method of grouping multiple physical interfaces into a single logical interface—a link
aggregation group (LAG) or port channel. A LAG is “a group of links that appear to a MAC client as if they were a single link”
according to IEEE 802.3ad. In Dell Networking OS, a LAG is referred to as a port channel interface.
A port channel provides redundancy by aggregating physical interfaces into one logical interface. If one physical interface goes down
in the port channel, another physical interface carries the trac.
Port Channel Benets
A port channel interface provides many benets, including easy management, link redundancy, and sharing.
Port channels are transparent to network congurations and can be modied and managed as one interface.
With this feature, you can create larger-capacity interfaces by utilizing a group of lower-speed links. For example, you can build a 40-
Gigabit interface by aggregating four 10-Gigabit Ethernet interfaces together. If one of the four interfaces fails, trac is redistributed
across the three remaining interfaces.
Port Channel Implementation
An Aggregator supports only port channels that are dynamically congured using the link aggregation control protocol (LACP). For
more information, refer to Link Aggregation. Statically-congured port channels are not supported.
The table below lists out the number of port channels per platform.
Platform
Port-channels Members/Channel
M IO Aggregator 128 16
As soon as a port channel is auto-congured, the Dell Networking OS treats it like a physical interface. For example, IEEE 802.1Q
tagging is maintained while the physical interface is in the port channel.
Interfaces
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