One strength of Juniper Junos is the config file management. The concept of different configurations is nothing special. For example Cisco uses two configuration files to reflect the current configuration in the RAM (running configuration), and the configuration used on startup (startup configuration). HP is doing the same on their networking gear. If you are new to Juniper Junos, the concept of an active configuration and a candidate config, which holds the current changes but isn’t active, maybe confuses you.
The Cisco Discovery Protocol (CDP) is used to discover and advertise the identity and capabilities of a network component to other networking components. CDP a proprietary protocol developed by Cisco, so it’s often used on Cisco switches and routers. The Link Layer Discovery Protocol (LLDP) is a vendor-neutral discovery protocol, which is used e.g. by Hewlett-Packard. With CDP or LLDP you can easily get an overview over a network topology. You can quickly check, e.
I’m a big fan of Juniper Networks! I work mainly with the SSG (ScreenOS) and SRX (Junos) series. The Juniper SRX is a network security solution, which can be positioned in the data center or at the branch. You will surely agree, that virtualization and cloud computing changed a lot from the network perspective. This demands security solutions that are not bound to hardware boundaries. Juniper Firefly Perimeter addresses this demands.
One possible use case for the HP VSR1000 is to build IPsec tunnels for secure data transfer. In this post I will show you how to configure a IPsec tunnel between two HP VSR1000. If you need a short introduction, feel free to take a look at this article.
The experimental setup We have two server VMs (in this case Windows Server 2008 R2 with SP1) and two HP VSR1000 Virtual Service Router.
In an earlier blog post I wrote a bit about virtual service routers. Now I want to show you how easily you can deploy a virtual service router in your lab. To do so I have downloaded the the HP VSR1000 Virtual Service Router and the Cisco Cloud Service Router 1000V. If you want to know how to download them, just read the mentioned blog post. Because both virtual service routers delivered as OVA, I can easily deploy them through the vSphere Client (sorry, no Web Client.
Today you can get nearly everything as a virtual appliance. So even a router. Usually virtual router appliances are used for the same purposes as physical router: Connecting different networks. A router is nothing more then a piece of hardware and software. Due to this fact a router can be easily deployed as a virtual appliance. So where do you find router typically? In you datacenter? Yes, but in a datacenter you will deal typically with layer-3 switches rather than a classical router.
Today I was onsite at a customer to bring a tiny VMware vSphere cluster to life (HP BladeSystem c7000 with 7 HP ProLiant BL460 Gen8). Normally no big deal, but it started with two unavailable Onboard Administrator (OA) network interfaces. I switched from static ip addresses to DHCP, but I had no luck. I noticed that both interfaces were available if I connect my notebook directly to the interfaces. I even noticed that the Insight Display was unresponsive after connecting one or both OA to the network.
