root port：根端口，非根桥上到根桥最近的端口，最近的意思是开销最小；designated port:指定端口，是在每一个物理网段的不同端口之间选举出一个指定端口。“指定端口”与前面所说的“根端口”相对，它可以理解为离下游设备最近的端口，是本物理网段（这里的“网段”是指一个交换机端口所连接的所有设
Root Port:到达Root Bridge的最短路径的出发端口。Designated Bridge:对于一个LAN而言，通往Root Bridge最短路径上的所经由的第一个Bridge。如果两个Bridge有相同长度的最短路径，那么取Bridge ID较小的那一个。
Root Bridge Election The device with the smallest BID is elected as the root bridge. Root Port Election Smallest RPC: On a non-root bridge, the port with the smallest RPC is elected as the root port. Smallest sender BID: If two or more ports on a non-root bridg...
On an STP network, the root bridge, root port, and designated port are selected based on the BPDU priority vector {root ID, root path cost, sender BID, PID}, as described in Table 14-2. Table 14-2 BPDU priority vector Field Description Root ID ID of the root bridge. Root path cos...
在RSTP协议中,端口角色分为Root Port(根端口)、Designated Port(指定端口)、Alternate Port(替代端口)和Backup Port(备份端口)。其中:- **Root Port(A)**:用于连接到根桥,始终处于转发状态。- **Designated Port(B)**:负责转发流量到下游网段,也处于转发状态。
在一个稳定的交换网络中,只有Rootport和Designatedport才会进入Forwarding状态。()A.正确B.错误的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为在线题库手机刷题,以提高学习效率,是学习的生产力
指定端口(Designated Port):指定桥上向本交换机转发数据的端口。端口优先级(Port Priority):数值范围从0到255,值越 … 1184394769.blog.51cto.com|基于739个网页 2. 指定埠 扩展树专用术语 n指定埠(designated port)-因为有最佳 (低) 成 本而被选定的埠-指定埠会被标示成转送埠。 非指定埠-成本 … ...
1. 指定端口 指定端口(Designated Port):指定桥上向本交换机转发数据的端口。端口优先级(Port Priority):数值范围从0到255,值越 … 1184394769.blog.51cto.com|基于739个网页 2. 指定埠 扩展树专用术语 n指定埠(designated port)-因为有最佳 (低) 成 本而被选定的埠-指定埠会被标示成转送埠。 非指定埠-成...
No root port was present on the switch. In the switch log we also noticed this message, for which I cannot find an explanation: "strata_remove_vtable_entry : vlan entry not found" In both cases where we faced the issue, the switches were connected to port Gi1/1 of 6509 WS-X6724-SFP...
Designated port—A designated port is a non-root port that is permitted to forward traffic. Designated ports are selected on a per-segment basis, based on the cost of each port on either side of the segment and the total cost calculated by STP for that port to get back to the root bri...