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Static routes, connected routes, and routes from dynamic configuration protocols can be redistributed by dynamic routing protocols. For instance, a router may have a static or connected route for a local network segment, which is then redistributed over dynamic routing protocols to enable connectivity to that network. [4] By using the metric to ...
The administrator can arbitrarily reconfigure the administrative distances, which affects the ranking of the preferred routes by the routing process. On Cisco routers, static routes have an administrative distance of 1, making them preferred over routes issued by a dynamic routing protocol. The administrative distance is a value that is always ...
Each routing protocol contains loop-avoidance mechanisms, but the information needed for loops to be avoided is lost when routes are redistributed. For example, a distance-vector routing protocol may prevent loops by the "split-horizon" rule; that is to say, if a router learns a route from a particular interface it will not re-advertise the ...
A VLAN access control list (VACL) provides access control for all packets that are bridged within a VLAN or that are routed into or out of a VLAN. Unlike regular Cisco IOS access control lists that are configured on router interfaces and applied on routed packets only, VACLs apply to all packets.
This is known as inter-VLAN routing. On layer-3 switches it is accomplished by the creation of layer-3 interfaces (SVIs). Inter VLAN routing, in other words routing between VLANs, can be achieved using SVIs. [1] SVI or VLAN interface, is a virtual routed interface that connects a VLAN on the device to the Layer 3 router engine on the same device.
Static routes are routes that a network administrator manually configured. Routing tables are also a key aspect of certain security operations, such as unicast reverse path forwarding (uRPF). [ 2 ] In this technique, which has several variants, the router also looks up, in the routing table, the source address of the packet.
It does this using internal pre-configured directives, called static routes, or by learning routes dynamically using a routing protocol. Static and dynamic routes are stored in the routing table. The control-plane logic then strips non-essential directives from the table and builds a forwarding information base (FIB) to be used by the ...
The 1U rack-switch with 1, 10 and 40 Gbit/s Ethernet interfaces is designed for use in colo center. Offers layer 2 and layer 3 capabilities at wire-speed for all 64 interfaces running in 10 Gbit/s. Layer3 routing protocols supported include static routes, RIP v2, OSPF and BGP-4. The switch-fabric can switch 2.28 Tbit/s and forward up to 950 ...