Administrator Guide

15 Dell Campus Networking Interoperability with Cisco Catalyst 1.1 | version 1.1
part of the command for assigning ports to the LAG. In the configurations in this section, for example,
channel-group 5 refers to port-channel 5 as well as LAG 5.
Figure 6 and the example commands below show both switches using LAG 5. Though it is not required that
adjacent switches sharing a LAG use the same number for the LAG, this is considered a best practice since it
makes it easier to remember, troubleshoot, and manage, especially when there are multiple LAGs on a switch
going to multiple devices (switches, servers, storage, etc.).
Use the following commands to configure a LAG between a Dell N-Series switch and Cisco Catalyst.
2.3.1 Configuring LAGs — Dell N-Series
The commands below are used to configure port channel 5 and enable the port as a trunk. As a best practice,
a description is then placed on the port. The 10 Gbps Ethernet ports te1/0/1 and te1/0/2 are assigned to the
LAG (port channel). These ports are joined to port channel 5 and Link Aggregation Control Protocol (LACP) is
enabled through the use of the active parameter. The show command is used to verify port participation.
N3024#configure
N3024(config)#interface port-channel 5
N3024(config-if-Po5)#switchport mode trunk
N3024(config-if-Po5)#description "LAG to Cisco C6504"
N3024(config-if-Po5)#exit
N3024(config)#interface range tengigabitethernet 1/0/1-2
N3024(config-if)#channel-group 5 mode active
N3024(config-if)#no shutdown
N3024(config-if)#end
N3024#show interfaces port-channel 5
Channel Ports Ch-Type Hash Type Min-links Local Prf
------- -------------------------- -------- --------- --------- -------
Po5 Active: Te1/0/1, Te1/0/2 Dynamic 7 1 Disabled
Hash Algorithm Type
1 - Source MAC, VLAN, EtherType, source module and port Id
2 - Destination MAC, VLAN, EtherType, source module and port Id
3 - Source IP and source TCP/UDP port
4 - Destination IP and destination TCP/UDP port
5 - Source/Destination MAC, VLAN, EtherType, source MODID/port
6 - Source/Destination IP and source/destination TCP/UDP port
7 - Enhanced hashing mode
Note: The matching LAG on the Cisco Catalyst 6504 must be created before the show interfaces
port-channel 5 command will show as active.
2.3.2 Configuring LAGs — Cisco Catalyst
This section covers configuring a port channel on the Cisco 6504-E to connect to the port channel on the Dell
N-Series switch.