Cisco recommends using AES-CBC for encryption and SHA1 for authentication to protect against performance risks to some of its Catalyst and ASR gear. To reduce the risk of service problems, Cisco is ...

1) IS-IS 只定义了两种网络拓扑类型：broadcast和general topology。在Cisco路由器中链路分为point-to-point 和broadcast。 OPSF定义了5种网络类型：point-to-point、point-to-multipoint、broadcast和NBMA，以及virtual links 2) 两种协议都维护一个链路状态数据库(Link State ...

I have two WAN routers, each connected to a separate ISP. I'm advertising 200.200.200.0/24 over BGP to both. My AS is 200200. Both of these WAN routers are connected to a switch fabric with my LAN ...

Well, at least one of you asked… and I did promise! Next we’ll move on to Type 5 (external) LSAs. (yeeha!) But if you didn’t yet vote for your top requests from Santa for this year, at least relative ...

OSPF is a popular interior gateway protocol, frequently encountered by network engineers. Here's how to get it up and running in a network. Open shortest path first, or OSPF, is a routing protocol ...