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They are all artistically enhanced with visually stunning color, shadow and lighting effects. Many of them are also animated. Seamless MPLS draft-leymann-mpls-seamless-mpls PowerPoint PPT presentation free to view. Rede sobreposta overlay , MPLS local protection Fast reroute Kireeti Kompella, Distinguished Engineer This includes. In this example, the access networks LSPs are statically configured, and the backbone uses signaling.
However, all combinations are possible - the backbone could use statically configured LSPs, and the access networks could use signaling. Wrapping Protection 50ms. OSPF network is divided into the following two levels: backbone area or area 0 and non-backbone areas.
One OSPF area may contain only one backbone area and more than one non-backbone areas. The area number of the backbone area is 0. The non-backbone areas can not exchange information with each other, they can be connected to backbone areas and exchange information with each other through backbone areas.
Usually, when a network is divided into different areas, the backbone areas and local areas fall into different levels of the network. Area ID: in a network, different domains have different IDs. The ID of a backbone area is 0.
Area address and mask: an attribute of area, it is consistent with area ID. External routing capability: Corresponding to the type of the area. Gateway NE: a function used by the equipment that communicates with a network administrator through external DCN network.
In one network, two different areas must have different area IDs. In a network that is divided into different areas and levels, the NE IP address of the backbone area shall be set as per the following rules: if the IP address of the NE is W.
Z, while the Y in the IP address is usually the maximum effective value The NE IP address of a local area shall be set as per the following rules: if the address of a area is W. The Y is used for differentiating different NEs in this local area. Considering that old MSTP network usually uses Z address, the address field assigned to PTN equipment is W. The external routing capability of the backbone area must be set as TRUE, thats to say,.
When a network is divided into different areas and different levels and the network is under the management of DCN network, the gateway NE can only be assigned to the backbone area, rather than the local area. Except for the gateway NE, the subnet mask of all the other NEs shall be set as Adjacent networks and their connecting routers constitute an Area.
Each area has its own topological database which is invisible to external areas. The link status information database for routers in each area actually contains only the link status information of this area. The routers in the same area have the same topological database. A router connected to multiple areas has the link status information databases of multiple areas. In a network that is divided into different areas, the number of the NEs in the area is preferably controlled within In the same network, any area must be continuous and can not be divided.
Take the following figure as example, the subnet mask of all NEs in the figure is Can we help you answer a question? Yes No. Are you a current Ciena customer? Do you need support on an existing product? We're happy to help! Visit our community Contact support. Do you want to learn more about Ciena's products? Here's some useful information. Connect with Ciena Learn more about us. Subscribe now for the latest Network Insights. The Adaptive Network. More More: Analytics and Intelligence.
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