本文描述Cisco连结6000连接的一个问题与 Cisco连结2248PQ结构增量剂(FEX)和提供一个解决方案。
Cisco建议您有这些题目基础知识:
本文档中的信息基于以下软件和硬件版本:
The information in this document was created from the devices in a specific lab environment.All of the devices used in this document started with a cleared (default) configuration.If your network is live, make sure that you understand the potential impact of any command.
Cisco连结2248PQ FEX有十六个万兆以太网矩阵接口通过四个四元组(4信道)小的尺寸可插入的(QSFP)端口,并且四十八万兆以太网主机接口。所有主机接口使用所有可用的矩阵接口。(不支持静态别住。矩阵接口只支持端口信道方式。)当所有主机接口发送数据流到所有矩阵接口时, Cisco连结的2248PQ最大超量预订比率是3:1。
当您提出在连接到Cisco连结2248PQ-10GE的Cisco连结的链路6000个FEX结构端口时,在Cisco连结6000的链路显示,因为链路没被连接的和在Cisco连结2248PQ的端口的链路指示灯绿色或:
Nexus6004-A# show int eth 2/7
Ethernet2/7 is down (Link not connected)
Dedicated Interface
Belongs to Po125
Hardware: 40000 Ethernet, address: 5897.1ef0.4856 (bia 5897.1ef0.4856)
MTU 1500 bytes, BW 40000000 Kbit, DLY 10 usec
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA
Port mode is fex-fabric
auto-duplex, 40 Gb/s, media type is 40g
为了带动此链路, Cisco连结2248PQ需要发现QSFP电缆,四条独立的10G链路(请收回uplink端口的早先说明作为十六条10G链路通过四个QSFP端口)。使用同一个电缆,但是您需要输入此on命令Cisco连结您计划分成四10G连接的6000个端口:
(config)# interface breakout slot 2 port 7-9 map 10g-4x
一旦输入此命令,您需要要使更改发挥作用重新载入模块:
(config)# poweroff module 2
(config)# no poweroff module 2
需要模块的几分钟能来联机。当它时,您应该看到您的链路分界到四个10G子端口:
Nexus6004-A# show int status | i 2/7
Eth2/7/1 -- connected 1 full 10G --
Eth2/7/2 -- connected 1 full 10G --
Eth2/7/3 -- connected 1 full 10G --
Eth2/7/4 -- connected 1 full 10G --
这时,您需要捆绑端口到Port-Channel,并且正常FEX配置可以适用:
(config)# fex 270
(config)# int ethernet 2/7/1-4
(config-if-range)# switchport mode fex-fabric
(config-if-range)# channel-group 270
(config)# interface port-channel 270
(config-if)# switchport mode fex-fabric
(config-if)# fex associate 270
(config-if)# shut
(config-if)# no shut