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Breakout cables from a Nexus 3232C result in cluster ports offline

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180
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Public
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Category:
aff-series
Specialty:
hw
Last Updated:

Applies to

Cluster Interconnect Switch Nexus 3232C with 40GB to 10GB breakout cables

Issue

  • Nexus 3232C ports show the breakout connection but shows a status of not connected. The Cluster ports on the controllers all show down.
  • Example of ifconfig:

e0b: flags=8843<up,broadcast,running,simplex,multicast> metric 0 mtu 9000

options=6c07bb<rxcsum,txcsum,vlan_mtu,vlan_hwtagging,jumbo_mtu,vlan_hwcsum,tso4,tso6,lro,vlan_hwtso,linkstate,rxcsum_ipv6,txcsum_ipv6>
ether 00:a0:98:9d:bd:9e
hwaddr 00:a0:98:9d:bd:9e
media: Ethernet autoselect (autoselect)
status: no carrier
plugged: SFP/SFP+/SFP28 Unknown (Copper pigtail)
vendor: CISCO-TYCO PN: 2231256-2 SN: TED1903L330-CH1 DATE: 2015-01-12

  • Example of sysconfig -a output with the standard Cisco breakout cable in place:

e0c MAC Address: 00:a0:98:9b:b2:d2 (auto-unknown-fd-down)
SFP Vendor: CISCO-TYCO
SFP Part Number: 2231256-2
SFP Serial Number: TED1834L761-CH2

  • Note: Output will vary depending on the cable being used.

 

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