161 
  Interface: Ethernet1/1             Circuit Id: 0000.0000.0001.01 
  State: Up     HoldTime: 7s         Type: L2           PRI: 100 
 
  System Id: 0000.0000.0002 
  Interface: Ethernet1/1             Circuit Id: 0000.0000.0001.01 
  State: Up     HoldTime: 26s        Type: L2           PRI: 64 
[RouterD] display isis interface 
 
                       Interface information for IS-IS(1) 
                       --------------------------------- 
 
  Interface: Ethernet1/1 
  Id      IPv4.State      IPv6.State     MTU   Type   DIS 
  001         Up             Down        1497  L1/L2  No/No 
IS-IS route redistribution configuration example 
Network requirements 
As shown in Figure 42, Router A, Router B, Router C, and Router D reside in the same AS. They use IS-IS 
to interconnect. Router A and Router B are Level-1 routers, Router D is a Level-2 router, and Router C is a 
Level-1-2 router.  
Redistribute RIP routes into IS-IS on Router D. 
Figure 42 Network diagram 
 
 
Configuration procedure 
1.  Configure IP addresses for interfaces. (Details not shown.) 
2.  Configure basic IS-IS: 
# Configure Router A. 
<RouterA> system-view 
[RouterA] isis 1 
[RouterA-isis-1] is-level level-1 
[RouterA-isis-1] network-entity 10.0000.0000.0001.00 
[RouterA-isis-1] quit