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關(guān)于N7K的Fabric module的幾個(gè)問(wèn)題說(shuō)明:
1.Fabric 1遷移到Fabric 2時(shí),必須在Cisco NX-OS 6.0(x) or a later release;
2.N7009不支持Fabric 1;
3.Fabric 1在線遷移到Fabric 2時(shí),必須在12小時(shí)內(nèi)完成,否則有系統(tǒng)信息提示,原文如下:When upgrading fabric modules, you must replace all of the Series 1 fabric modules in the switch with Series 2 fabric modules within 12 hours or you will see a syslog message that reminds you to complete the upgrade.
4.Fabric 1離線遷移到Fabric 2時(shí),在兩個(gè)模塊共存時(shí)啟動(dòng)交換機(jī),思科官方給出了兩種截然相反的說(shuō)法,原文如下:
You can replace a Series 1 fabric module with a Series 2 module in the Cisco Nexus 7010 and 7018 switches during operations, but while there is a mix of fabric module types, all of the fabric modules perform as Series 1 fabric modules. If you power up a switch with two types of fabric modules installed, only the Series 1 fabric modules will power up. To utilize the Series 2 fabric module capabilities, all of the installed fabric modules must be Series 2 fabric modules.
If you power up a switch that has both types of fabric modules installed, only the Series 2 modules power up. If you need the Series 1 modules to power up, you must first power off all of the Series 2 modules before the Series 1 modules can power up.
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關(guān)于I/O模塊與Fabric的關(guān)系中,在培訓(xùn)中提到如果采用F2的I/O模塊,需要5塊Fabric 2的模塊,這里需要說(shuō)明幾點(diǎn):
1.如果采用單塊F2的I/O模塊,可以只配置2塊Fabric 2的交換矩陣達(dá)到1+1的冗余,而不需要考慮是否線速,因?yàn)橥籉2模塊的不同端口之間數(shù)據(jù)傳輸不需要經(jīng)過(guò)交換矩陣;
2.基于上面這點(diǎn),I/O模塊與Fabric的關(guān)系,不是說(shuō)沒(méi)有Fabric就不能使用I/O模塊或I/O模塊啟不來(lái),而是不同I/O間的數(shù)據(jù)傳輸需要多大的帶寬。
3.M1千兆I/O模塊因?yàn)檫B接背板帶寬是40Gbps,雙向80Gbps,所以必須有一塊Fabric 1模塊正常工作,否則不能工作。
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