FAQ-isis协议中NE5000E设备loopback端口的cost默认为多少

发布时间:  2012-07-27 浏览次数:  155 下载次数:  0
问题描述
Q:
loopback,它是一种虚拟接口,不会有实际的带宽值,
默认情况下ospf协议下NE5000E loopback地址ospf cost为1,
而isis协议中NE5000E设备loopback端口的cost为多少?
告警信息

处理过程
A:
在isis协议中NE5000E设备loopback端口的cost默认为0,查看如下:
<NE5000E>display  current-configuration  interface  loo 0            
#                                                                               
interface LoopBack0                                                             
 ip address 61.177.232.254  255.255.255.255                                    
 isis enable 1                                                                  
 isis circuit-level level-1                                                                     
#                                                                               
                                                          
<NE5000E>display isis  route  61.177.232.254                         
                                                                                
                         Route information for ISIS(1)                          
                         -----------------------------                          
                                                                                
                        ISIS(1) Level-1 Forwarding Table                        
                        --------------------------------                        
                                                                                
 IPV4 Destination     IntCost    ExtCost ExitInterface   NextHop          Flags 
                                                                                
------------------------------------------------------------------------------  
 61.177.232.254/32    0          NULL    Loop0           Direct          D/-/L/-
                                                                                
当然可以通过[NE5000E-LoopBack0]isis cost x  进行修改设置。
根因

建议与总结

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