Configure IRMP Basic Function Example

Network Requirements

• The IRMP operates between Device1 and Device2, establishing the neighbor and interacting the route.

Network Topology

Figure 11–1 Networking of the IRMP basic function

Configuration Steps

Step 1: Configure the IP address of the interfaces. (Omitted)

Step 2: Configure the IRMP.

#Configure Device1.

#Configure Device2.

Step 3: Check the result.

#View the IRMP neighbor information of Device1.

Device1#show ip irmp neighbor  
IP-IRMP neighbors for process 100 Total neighbor 1 
Address     Interface            Hold(s) Uptime   SeqNum   Srtt(ms) Rto(s) 
1.0.0.2     gigabitethernet1     14      00:00:47 7        0         2    

#View the IRMP neighbor information of Device2.

Device2#show ip irmp neighbor  
IP-IRMP neighbors for process 100 Total neighbor 1 
Address     Interface            Hold(s) Uptime   SeqNum   Srtt(ms) Rto(s) 
1.0.0.1     gigabitethernet0     11      00:00:43 4        3920     4

It can be viewed that the IRMP neighbor is established between Device1 and Device2I

#View the topology table and routing table of Device1.

Device1#show ip irmp topology  
IP-IRMP Topology Table for process 100 
Codes: P - Passive, A - Active, H - Holddown, D - Hidden 
        > - FIB route, * - FIB successor 
 
P >1.0.0.0/24, 1 successors, FD is 2816 
        *via Connected (2816/0), gigabitethernet1
P >200.0.0.0/24, 1 successors, FD is 3072 
        *via 1.0.0.2 (3072/2816), gigabitethernet1
P >100.0.0.0/24, 1 successors, FD is 2816 
        *via Connected (2816/0), gigabitethernet0 
 
Device1#show ip route 
Codes: C - connected, S - static, R - RIP, O - OSPF, OE-OSPF External, M - Management 
       D - Redirect, E - IRMP, EX - IRMP external, o - SNSP, B - BGP, i-ISIS  
 
Gateway of last resort is not set 
 
C 1.0.0.0/24 is directly connected, 00:27:02, gigabitethernet1 
E 200.0.0.0/24 [90/3072] via 1.0.0.2, 00:15:07, gigabitethernet1
C 100.0.0.0/24 is directly connected, 00:27:14, gigabitethernet0
C 127.0.0.0/8 is directly connected, 137:46:13, lo0

Device1 learns the routing 200.0.0.0/24 advertised by Device2.

#View the IRMP topology table and routing table of Device2.

Device2#show ip irmp topology  
IP-IRMP Topology Table for process 100 
Codes: P - Passive, A - Active, H - Holddown, D Hidden 
        > - FIB route, * FIB successor 
 
P >1.0.0.0/24, 1 successors, FD is 2816 
        *via Connected (2816/0), gigabitethernet0
P >200.0.0.0/24, 1 successors, FD is 2816 
        *via Connected (2816/0), gigabitethernet1
P >100.0.0.0/24, 1 successors, FD is 3072 
        *via 1.0.0.1 (3072/2816), gigabitethernet0 
 
Device2#show ip route 
Codes: C - connected, S - static, R - RIP, O - OSPF, OE-OSPF External, M Management 
       D - Redirect, E - IRMP, EX - IRMP external, o - SNSP, B BGP, i-ISIS  
 
Gateway of last resort is not set 
 
C 1.0.0.0/24 is directly connected, 00:20:12, gigabitethernet0 
C 200.0.0.0/24 is directly connected, 00:19:53, gigabitethernet1
E 100.0.0.0/24 [90/3072] via 1.0.0.1, 00:08:41, gigabitethernet0
C 127.0.0.0/8 is directly connected, 361:04:08, lo0 

Device2 learns the routing 100.0.0.0/24 advertised by Device1.