My understanding is, technology wise IOS is obsolete, but due to the feature base and customer base it cannot be abandoned at this stage and still needs to be sustained. Meanwhile, new architecture/technology has to be introduced, which are today's other variation of IOS ... One variation is, in the future IOS will be running on Linux kernel. I like this idea. but still a long way to go.
focus on architect level than specific db/bi products if you take the option . it takes time for windows professional to be familiar with *nix platform and products(I suppose you will). architecture is the common thing, from relational database, application servers, front end or say components of MVC , but the detail will kill time and you may or may not have the time.
good product needs time to polish. so far the best is still IOS as so many efforts have been put into it. However, due to architecture limit, the complexity of IOS has reached such a level that even some simple modifications may break a lot of things, so sustaining is becoming more and more difficult and inefficient. that is why I think cisco needs new IOS architecture.
I agree with you regarding the IOS limitation as for the feature set, modular IOS is a must. I just don't understand why Cisco needs so many totally different mudular IOS, NX-OS is SAN-OS based, a totally linux kernal IOS, IOS XE is actually based on KVM http://www.linux-kvm.com, that is 2 IOS instances running on 2 virtual machines on top of linux. and IOS XR is based on another OS (I suddenly forget the name, who can remind me?). And ION is not a true modular IOS (very limited modular featur
【在 d****i 的大作中提到】 : My understanding is, technology wise IOS is obsolete, but due to the feature : base and customer base it cannot be abandoned at this stage and still needs : to be sustained. Meanwhile, new architecture/technology has to be : introduced, which are today's other variation of IOS ... : One variation is, in the future IOS will be running on Linux kernel. I like : this idea. but still a long way to go.
【在 y****w 的大作中提到】 : focus on architect level than specific db/bi products if you take the option : . : it takes time for windows professional to be familiar with *nix platform and : products(I suppose you will). architecture is the common thing, from : relational database, application servers, front end or say components of MVC : , but the detail will kill time and you may or may not have the time. : : group
d*i
21 楼
I think yes, they really don't know exactly what is the best solution yet. And it seems there is no one who is coordinating all the efforts towards the same objective based on same agenda. but seems moving onto linux kernel is the trend, though different group still has different focus... I believe if one group can come up with a good product which can integrate the most features from IOS with a low cost, and that product becomes very successful in the market, that group's idea could become the
【在 z**r 的大作中提到】 : I agree with you regarding the IOS limitation as for the feature set, : modular IOS is a must. I just don't understand why Cisco needs so many : totally different mudular IOS, NX-OS is SAN-OS based, a totally linux kernal : IOS, IOS XE is actually based on KVM http://www.linux-kvm.com, that is 2 IOS instances running on 2 virtual machines on top of linux. and IOS XR is based on another OS (I suddenly forget the name, who can remind me?). And ION is not a true modular IOS (very limited modular featur
looks like Cisco may keep the way it is now, multiple OS's for different platforms. IOS XR will definitely be the service provider P/PE routers's OS, look at the new launched ASR 9000 (replacing 7600), and another one ( replacing aged GSR). And for data centers, Cisco will be using NX-OS (Nexus 7000, 5000). Linux will be more and more adopted, at lease NX-OS and IOS XE are linux based. IOS XR is a different animal
【在 p********l 的大作中提到】 : IOS needs a revolution. Linux kernel might be the future. If you are : following it, it isn't very hard to master it.