在OSPF协议的网络管理中，网络被划分为多个自治域。路由器根据在自治系统中的角色被划分为四种类型：内部路由器（Internal Area Router，IAR），区域边界路由器（Area Border Router，ABR），骨干路由器（BackBone Router，BBR）和自治系统边界路由器（Autonomous System Border Router，ASBR）。骨干路由器是特...
A Backbone Router is defined as a key component in OSPF routing domains that serves as a central point connecting different areas, facilitating efficient routing between them. AI generated definition based on: The Illustrated Network, 2009
The bottom left router's left link does not need to be in area zero. All the "side" links might be in different (and must be unique) areas. (Again, you might want none of those to be in area zero; keeping area zero for just your ABRs [which aligns with an OSPF backbone].) Exc...
backbone router In Open Shortest Path First (OSPF), a router that is connected to the backbone area. This includes routers that are connected to more than one area (area border routers (ABRs)). However, backbone routers do not have to be ABRs. Routers that have all networks connected to ...
router ospf 100 distribute-list prefix DEN gateway GAT in I will see this So i'm not using the bypass path The routing bit is always set on the area0 path, even if i raise the metric. Do you know why? Thanks a lot. I have this problem too Labels: Routing Protocols 0 Helpful ...
原理是,当R2-PE1将VPN实例运行的OSPF协议的路由引入MP-BGP时,除了添加RT值、RD值、私网标签,还会增加OSPF的RT值,OSPF的Domain ID,OSPF的Router ID 在R5上通过dis bgp vpnv4 all routing-table 10.1.1.1命令查看根据MP-BGP学习到的10.1.1.1路由的具体信息也能查看到OSPF RT,OSPF Domain ID,OSPF Router ID这...
需要检查网络中所有运行OSPF协议的路由器的配置,特别是关于区域ID的设置。确保所有在同一OSPF区域内的路由器都配置了相同的区域ID。 在Cisco设备上,可以通过以下命令查看和修改OSPF区域ID: plaintext Router# show running-config | include ospf Router# configure terminal Router(config)# router ospf 1 Router(confi...
Router R1, an ASBR connected to the Internet and to backbone area 0, has been configured with a default - information originate command. Which of the following is true about the effects of this configuration command?() A. R1 will always create and flood a default route into the OSPF ...
peer 2.2.2.9 enable # ipv4-family vpn-instance vpna peer 10.2.1.1 as-number 65420 import-route direct # ospf 1 area 0.0.0.0 network 4.4.4.9 0.0.0.0 network 100.3.4.0 0.0.0.255 network 100.2.4.0 0.0.0.255 # return Configuration file of CE1...
I have an interesting problem in which enabling EIGRP on the PE for connecting to the CE router, causes OSPF in the MPLS routers to drop their neighbour and establish the session again. I have attached a diagram showing the MPLS environment with the attached CE routers. Also attached are ...