Cisco 9000 Series Aggregation Services Routers (ASR 9000)
Likelihood to Recommend
Adtran
Adtran NetVanta series switches are a very desirable switch set at a reasonable price point with a large amount of configuration ability for both L2 and L3. They are best suited for medium to large institutions that are not Cisco Dependent. They work well for small businesses as well but may be too high of a price point and too large of a feature set needed for a SOHO type set up which may turn away customers in that range. The 1531/P series does offer a smaller switch with the option of PoE in the P model and gives a total of 12 individual ports between the 8 PoE ports, 2 non PoE ports, and 2 SFP ports capable of Gigabit or 2.5Gbps with Adtran's interconnect cable. This may be more suitable for a SOHO set up but again may offer more than many small businesses need and may seem daunting.
It is very well suited to act as your aggregator / core switch for mid to large facilities. it is flexible enough to really be useable in small environments but costs may hinder that. It has redundancy of power and management blades that does add a lot of peace of mind and security. Really the only reason you would not use a 9000 series is frankly cost and/or real requirements for performance. They have several versions of this model, plus they have an entire set of lines that can accommodate nearly as much as the 9000. Less demand or less of a budget can weigh in the decision to select this particular model.
[The] upgrade process [is] overly complicated compared to NX-OS or IOS. New images and the current configuration need to be compiled into "golden IOS's". If you don't include the configuration, you will have a clean device with no configuration.
[There are] major bugs in every release. We have had to cycle through all of our routers 3 times in the last year for updates due to show-stopping bugs that did not come to light until after the changes were made in production.
[It has] terrible documentation. You have to mine their site to get to any documentation for recent versions of IOS-XR. If you make the leap from 32-bit cXR to 64-bit eXR, then the documentation is more or less non-existent. Due to the internal architecture of hardware itself, technical specs can change from software version to software version, so don't expect any sort of firm scalability numbers. You'll have to rely on your sales engineer for that.
In some ways, the platform is a big improvement over our previous IOS and NX-OS devices: They offer version-controlled configuration staging/commits. They have a robust portfolio of network protocols and features even beyond datacenter devices. Due to the use of NPUs instead of relying entirely on ASICs for forwarding, new versions of the software are able to improve hardware performance and capacity. Unfortunately, I have run into more bugs on IOS-XR than I ever did on IOS or even NX-OS (which has a shocking number of bugs of its own) and you have to be a licensing guru to get your order right the first time.
When we are integrating the ASR9000 router with other devices then there should be the same device that can cater to the throughput. We can use the Cisco 9600 Switch which can be easily integrated and can handle the speed in terms of uplinks 40G can be handled. Adding to this Cisco DNA Center can be integrated to do the automation and monitoring purposes.
High Performance and reliability have allowed for a 'set it and forget it' type installation, giving greater customer satisfaction.
The price point of the switches, while higher than other models such as HP or Dell potentially, is in line with their reliability and functionality and comes in less than Cisco much of the time.
Having a long time relationship with Adtran as a company has allowed us to quickly assist customers with their needs, saving everyone time and money.
We didn't need to buy new devices when we were increasing backbone capacity from 1G to 10G.
Due to the modular nature of the software, when there is an issue with any running services, we need not reboot the whole device which affects all clients and availability.
