Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

Example of the show interfaces port-channel brief Command

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, as shown in the following example.

Dell#show int port brief
                                 Codes: L - LACP Port-channel
                                 
                                 LAG Mode Status Uptime   Ports
                                 1   L3   down   00:00:00 Te 0/16 (Down)
                                 Dell#
                              

The following example shows the port channel’s mode (L2 for Layer 2 and 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.

Dell#show int port-channel
                                 Port-channel 1 is down, line protocol is down
                                 Hardware address is 00:1e:c9:f1:00:05, Current address is 00:1e:c9:f1:00:05
                                 Interface index is 1107755009
                                 Minimum number of links to bring Port-channel up is 1
                                 Internet address is not set
                                 Mode of IP Address Assignment : NONE
                                 DHCP Client-ID :lag1001ec9f10005
                                 MTU 1554 bytes, IP MTU 1500 bytes
                                 LineSpeed auto
                                 Members in this channel: Te 0/16(D)
                                 ARP type: ARPA, ARP Timeout 04:00:00
                                 Last clearing of "show interface" counters 00:05:44
                                 Queueing strategy: fifo
                                 Input Statistics:
                                 0 packets, 0 bytes
                                 0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
                                 0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
                                 0 Multicasts, 0 Broadcasts
                                 0 runts, 0 giants, 0 throttles
                                 0 CRC, 0 overrun, 0 discarded
                                 Output Statistics:
                                 0 packets, 0 bytes, 0 underruns
                                 0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
                                 0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
                                 0 Multicasts, 0 Broadcasts, 0 Unicasts
                                 0 throttles, 0 discarded, 0 collisions
                                 Rate info (interval 299 seconds):
                                 Input 00.00 Mbits/sec,   0 packets/sec, 0.00% of line-rate
                                 Output 00.00 Mbits/sec,  0 packets/sec, 0.00% of line-rate
                                 Time since last interface status change: 00:05:44
                              

When more than one interface is added to a Layer 2-port channel, the system selects one of the active interfaces in the port channel to be the primary port. The primary port replies to flooding and sends protocol data units (PDUs). An asterisk in the show interfaces port-channel brief command indicates the primary port.

As soon as a physical interface is added to a port channel, the properties of the port channel determine the properties of the physical interface. The configuration and status of the port channel are also applied to the physical interfaces within the port channel. For example, if the port channel is in Layer 2 mode, you cannot add an IP address or a static MAC address to an interface that is part of that port channel.

In the following example, interface GigabitEthernet 1/6 is part of port channel 1, which is in Layer 2 mode, and an error message appeared when an IP address was configured.

Dell(conf-if-po-1)#show config
                                 !
                                 interface Port-channel 1
                                 no ip address
                                 channel-member TenGigabitEthernet 0/16
                                 shutdown
                                 Dell(conf-if-po-1)#
                                 Dell(conf-if-po-1)#int tengig 1/6
                                 Dell(conf-if)#ip address 10.56.4.4 /24
                                 
                                 % Error: Te 1/6 Port is part of a LAG.
                                 Dell(conf-if)#