Reference Guide

channel. If the other interfaces congured in that port channel are congured with a dierent speed, Dell Networking OS disables
them.
For example, if four interfaces (TenGig 0/1, 0/2, 0/3 and 0/4) in which TenGig 0/1 and TenGig 0/2 are set to speed 1000 Mb/s and
the TenGig 0/3 and TenGig0/4 are set to 10000 Mb/s, with all interfaces enabled, and you add them to a port channel by entering
channel-member tengigabitethernet 0/1-4 while in port channel interface mode, and the Dell Networking OS
determines if the rst interface specied (TenGig 0/1) is up. After it is up, the common speed of the port channel is 1000 Mb/s. Dell
Networking OS disables those interfaces congured with speed 10000 Mb/s or whose speed is 10000 Mb/s as a result of auto-
negotiation. The channel-member command is available only in PMUX mode.
In this example, you can change the common speed of the port channel by changing its conguration so the rst enabled interface
referenced in the port level is a 1000 Mb/s speed interface. You can also change the common speed of the port channel by setting
the speed of the TenGig 0/1 interface to 1000 Mb/s.
Uplink Port Channel: VLAN Membership
The tagged VLAN membership of the uplink LAG is automatically congured based on the VLAN conguration of all server-facing
ports (ports 1 to 8).
The untagged VLAN used for the uplink LAG is always the default VLAN 1.
Server-Facing Port Channel: VLAN Membership
The tagged VLAN membership of a server-facing LAG is automatically congured based on the server-facing ports that are
members of the LAG.
The untagged VLAN of a server-facing LAG is auto-congured based on the untagged VLAN to which the lowest numbered server-
facing port in the LAG belongs.
Displaying Port Channel Information
To view the port channel’s status and channel members in a tabular format, use the show interfaces port-channel
brief
command in EXEC Privilege mode.
Dell#sh int port-channel brief
Codes: L - LACP Port-channel
O - OpenFlow Controller Port-channel
LAG Mode Status Uptime Ports
L 1 L2 up 00:00:19 Te 0/7 (Up)
Te 0/8 (Up)
L 128 L2 up 00:00:36 Te 0/9 (Up)
Te 0/10 (Up)
Te 0/11 (Up)
Dell#
To display detailed information on a port channel, enter the show interfaces port-channel command in EXEC Privilege mode. The
below example shows the port channel’s mode (L2 for Layer 2, L3 for Layer 3, and L2L3 for a Layer 2 port channel assigned to a
routed VLAN), the status, and the number of interfaces belonging to the port channel.
In this example, the Port-channel 1 is a dynamically created port channel based on the NIC teaming conguration in connected
servers learned via LACP. Also, the Port-channel 128 is the default port channel to which all the uplink ports are assigned by default.
Dell#show interfaces port-channel
Port-channel 128 is up, line protocol is up
Created by LACP protocol
Hardware address is 00:1e:c9:de:04:9c, Current address is 00:1e:c9:de:04:9c
Interface index is 1107492992
Minimum number of links to bring Port-channel up is 1
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :001ec9de049c
MTU 12000 bytes, IP MTU 11982 bytes
LineSpeed 30000 Mbit
Interfaces
91