11-10-2015 02:13 PM
Hi All
I bought 4 N9396TX with N9K-M6PQ module that support 6 port 40 G with QSFP-40G-SR-BD
I want to change the speed of module port from 40 G to 10 G and insert the CVR-QSFP-10GSFP converter to pysical convert from 40 G to 10 G and install SFP+ SR and LR in the converter
so I follow the following steps:
1- after power up the NX SW, I installed the converter with SFP+ in both sidesand it worked and up without any additional configuration
2- then I tried to insert the QSFP 40 G beside the SFP+ 10 G and I tried to shut and no shut the 40 G interface to enable it but I found that the 10 G SFP+ shut down, so I removed the 40 G QSFP and reset all ports to defult using
#default interface ethernet 2/1-6
but still not worked and tried to use the CLI command under the used interface
#interface ethernet 2/1
#speed-group 10000
then an error message appeared "ERROR: Ethernet1/40: Configuration does not match the port capability"
but the show interface ethernet 2/1 shoed that the speed became 10G but the port still down
so I searched and found that I must disable auto negotiate using
#no negotiate auto
but the command also refused also
I Know that the module port can work all in 10 G or all in 40 G so I removed the 40 G QSFP
does the module need to be restarted ?
and any suggestion?
12-18-2015 07:18 AM
I found the answer here:
The Cisco QSFP+ to SFP+ Adapter (QSA) module provides 10G support for the 40G uplink ports that are a part of the Cisco Nexus M6PQ and Cisco Nexus M12PQ uplink modules of specific Cisco Nexus 9300 devices described below.
A group of six consecutive ports in the M6PQ or M12PQ uplink module must be operating at the same speed (40G or 10G) to use the QSA/QSFP modules.
Use the speed-group 10000 command to configure the first port of a port speed group for the QSA. This command specifies the administrator speed preference for the port group. (The default port speed is 40G.)
After the speed has been configured, the compatible transceiver modules are enabled. The remaining transceiver modules in the port group (incompatible transceiver modules) become error disabled with a reason of "check speed-group config".
The Cisco QSFP+ to SFP+ Adapter (QSA) module does not provide 10G support for the 40G line cards for Cisco Nexus 9500 devices.
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/6-x/interfaces/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_Interfaces_Configuration_Guide/b_Cisco_Nexus_9000_Series_NX-OS_Interfaces_Configuration_Guide_chapter_010.html08-24-2017 07:37 AM
thank you!
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