Cisco N5K-M1600 - Expansion Module - 6 Ports Troubleshooting Manual page 148

Improper Configurations
S e n d d o c u m e n t c o m m e n t s t o n e x u s 5 k - d o c f e e d b a c k @ c i s c o . c o m .
In this example, ports 25 and 26 connect to the other Nexus 5000 switch and should be configured as a
peer link.
Run the same command on the other Nexus 5000 switch and observe the ports.
switch2# show cdp neighbor
Capability Codes: R - Router, T - Trans-Bridge, B - Source-Route-Bridge
Device-ID
switch1(SSI14150768)Eth1/25
switch1(SSI14150768)Eth1/26
switch2# show run int e1/25
!Command: show running-config interface Ethernet1/25
!Time: Tue Mar
version 4.2(1)N2(1)
interface Ethernet1/25
switchport mode trunk
channel-group 500
switch2# show run int e1/26
!Command: show running-config interface Ethernet1/26
!Time: Tue Mar
version 4.2(1)N2(1)
interface Ethernet1/26
switchport mode trunk
channel-group 500
In this example, you can see that port-channel 500 is used on the connection to switch1 on switch2.
You now need to determine how port-channel 500 is configured on switch2.
switch2# show run int po 500
!Command: show running-config interface port-channel500
!Time: Tue Mar
version 4.2(1)N2(1)
interface port-channel500
switchport mode trunk
vpc peer-link
spanning-tree port type network
speed 10000
Create a port-channel 500 on switch1 and associate it to the ports connecting to e1/25 and e1/26 on
switch2.
switch1(config)# int po 500
switch1(config-if)# int e1/25-26
Cisco Nexus 5000 Series Troubleshooting Guide
8-6
S - Switch, H - Host, I - IGMP, r - Repeater,
V - VoIP-Phone, D - Remotely-Managed-Device,
s - Supports-STP-Dispute
Local Intrfce Hldtme Capability
168
168
8 04:09:17 2011
8 04:09:20 2011
8 04:10:38 2011
Chapter 8 Troubleshooting Virtual Port Channel Issues
Platform
S I s N5K-C5020P-BF Eth1/25
S I s N5K-C5020P-BF Eth1/26
Port ID
OL-25300-01