본문 바로가기

IT/Traditional Network

Nexus 93128/9396 등 QSA module 사용시 주의사항

반응형



Nexus 9000 platformUplink moduleDefault 40G 설정되어 있어, QSA module 10G GBIC 장착하더라도 port enable 안됩니다.

Uplink module6port 하나의 port-group으로 할당되어 있으며, 번째 portspeed 정의하면 그룹의 모든 포트가 동일한 speed 동작하게 됩니다.

 

[example]

Nexus93128 경우 40G Port 8개까지 사용할 있는데, 경우 1~6 / 7~8 2개의 group으로 사용할 있습니다.


[document 발췌]

The Cisco QSFP+ to SFP+ Adapter (QSA) module provides 10G support for the 40G uplink ports that are a part of the Cisco Nexus M12PQ uplink module of the Cisco Nexus 9396PX (N9K-C9396PX) and Cisco Nexus 93128TX (N9K-C93128TX) devices.

A group of six consecutive ports in the M12PQ uplink module must be operating at the same speed (40G or 10G) to use the QSA/QSFP modules.

  • For Cisco Nexus 9396PX devices, 2/1-6 ports form the first port speed group and the remaining 2/7-12 ports form the second port speed group.

  • For Cisco Nexus 93128TX devices, 2/1-6 ports form the first port speed group and the remaining 2/7-8 ports form the second port speed group.

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.)

  • The speed-group 10000 command specifies a speed of 10G.

  • The no speed-group 10000 command specifies a speed of 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".

QSA Configuration Example

For a Cisco Nexus 9396PX:

  • Using the default configuration on port 2/1, all the QSFPs in port group 2/1-6 are brought up with a speed of 40G. If there are any QSA modules in port group 2/1-6, they are error disabled.

  • Using the speed-group 10000 command to configure port 2/7, all the QSAs in port group 2/7-12 are brought up with a speed of 10G. If there are any QSFP modules in port group 2/7-12, they are error disabled

[참고자료]
https://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.html 참조


반응형