Double room Nexus 2348UPQ / Max ports for vPC links

Hi people,

Cisco Nexus 2348UPQ has 24 to 10 GB uplink interfaces. Supposedly on the distribution layer, we have a pair of Cisco Nexus 5548UP, how many ports we can group about 2348 for vPC for double-homing links.

Thank you very much!!!

Hi Chris,

Using an Extender of fabric with a Cisco Nexus 5000 and 6000 Series Switch Cisco Nexus

http://www.Cisco.com/c/en/us/TD/docs/switches/Datacenter/nexus2000/HW/installation/guide/nexus_2000_hig/overview.html#pgfId-1415984

-If you decide to use the drop cable instead of the 40 G uplinks, please note the following limitation:

The 2348TQ of Cisco Nexus and Nexus 2348UPQ FEX, if a port channel is used to connect a switch parent with a tissue Expander device, the port channels can have up to 8 ports.

Nexus 2348 FEX devices have a total of 6 * 40 Gigabit Ethernet uplink ports to the parent switch. If these are used with native port of 40G uplinks on a switch of parent, there is no limitation. 6 ports can be used in a hosted configuration only hosted or double. You can also use 40 Gigabit Ethernet uplink ports on the extensor of N2348 fabric with 10 Gigabit Ethernet ports on the switch to parent when it is used with the appropriate wiring. A maximum of 8 ports can be added to the string of port between the parent switch and the fabric Extender. If it's a double hosted configuration, VPC for the extensor of fabric, only 4 ports per switch are allowed in the channel of the port.

Cisco Nexus 5600 series NX - OS Layer 2 switching Configuration Guide, version 7.x - configuration of the fabric Extender

http://www.Cisco.com/c/en/us/TD/docs/switches/Datacenter/nexus5600/SW/Layer2/7x/b_5600_Layer2_Config_7x/b_6k_Layer2_Config_7x_chapter_01110.html

-SFP support and cables are listed in the Cisco Nexus 2300 platform fabric Extender card (http://www.cisco.com/c/en/us/products/collateral/switches/nexus-2000-series-fabric-extenders/datasheet-c78-731663.html).

I'd be suspicious of this bug;

https://Tools.Cisco.com/bugsearch/bug/CSCuu88175/?reffering_site=dumpcr

"If it's a double configuration hosted, vpc for fex, that only 4 ports per switch are permitted in the Port-Channel"

HTH,

Qiese Sa'di

Tags: Cisco DataCenter

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