Create basic SPBM and IS-IS infrastructure.
Configure a CLIP interface.
Perform the following procedure to create a virtual NNI link between Multi-area boundary nodes.
enable
configure terminal
interface Loopback <1-256>
Note
If you configure the loopback interface for the Multi-area virtual NNI link in the home area, you must configure IS-IS on the logical interface in the remote area, and vice versa.
Configure a Multi-area virtual link NNI for the home area. To do this, create the loopback source to be redistributed in the remote area and then enable IS-IS on a virtual-link logical interface in the home area.
Switch:1>enable Switch:1#configure terminal Switch:1(config)#interface loopback 1 Switch:1(config-if)#ip address 2.2.2.2/32 multi-area-virtual-link remote exit Switch:1(config)#logical-intf isis 2 dest-ip 4.4.4.4 multi-area-virtual-link Switch:1(config-isis-2-4.4.4.4)#isis Switch:1(config-isis-2-4.4.4.4)#isis spbm 1 Switch:1(config-isis-2-4.4.4.4)#isis enable exit
Configure a Multi-area virtual NNI link for the remote area. To do this, create the loopback source to be redistributed in the home area and then enable IS-IS on a virtual-link logical interface in the remote area.
Switch:1>enable Switch:1#configure terminal Switch:1(config)#interface loopback 1 Switch:1(config-if)#ip address 2.2.2.2/32 multi-area-virtual-link home exit Switch:1(config)#logical-intf isis 2 dest-ip 4.4.4.4 multi-area-virtual-link Switch:1(config-isis-2-4.4.4.4)#isis remote Switch:1(config-isis-2-4.4.4.4)#isis remote spbm 1 Switch:1(config-isis-2-4.4.4.4)#isis remote enable exit
The following example displays loopback interface information:
Switch:1#show interfaces loopback =================================================================================================== Circuitless IP Interface - GlobalRouter =================================================================================================== INTF IP_ADDRESS NET_MASK OSPF PIM AREA_ID IF IP MULTI-AREA ID STATUS STATUS INDX NAME VIRTUAL LINK --------------------------------------------------------------------------------------------------- 1 2.2.2.2 255.255.255.255 disable disable 0.0.0.0 1344 Virtual-link Remote 2 2.3.4.5 255.255.255.255 disable disable 0.0.0.0 1345 15 192.0.2.2 255.255.255.0 disable disable 0.0.0.0 1358 EXTR ====================================================================================================================== Loopback Ipv6 Interface ====================================================================================================================== IF VRF Descr VLAN PHYSICAL ADMIN OPER TYPE MTU HOP REACHABLE RETRANSMIT IPSEC INDX NAME ADDRESS STATE STATE LMT TIME TIME STATE ---------------------------------------------------------------------------------------------------------------------- 1234 GREEN CLIPv6-11 00:00:00:00:00:0b enable up ETHER 1500 64 30000 1000 disable ====================================================================================================================== Loopback IPv6 Address ====================================================================================================================== IPV6 ADDRESS/PREFIX LENGTH LOOPBACK-ID TYPE ORIGIN STATUS VALID PREF NAME LIFETIME LIFETIME ---------------------------------------------------------------------------------------------------------------------- 2001:DB8:2000::1/128 C-11 UNICAST MANUAL PREFERRED INF INF EXTRSER200
The following example displays logical interface information:
Switch:1>show isis logical-interface =========================================================================================================================== ISIS Logical Interfaces =========================================================================================================================== IFIDX NAME ENCAP L2_INFO VIDS TUNNEL L3_TUNNEL_NEXT_HOP_INFO BFD TUNNEL ORIGIN ISIS SDWAN TYPE PORT/MLT (PRIMARY) DEST-IP PORT/MLT VLAN VRF STATUS SRC-IP MTU OPER STATE --------------------------------------------------------------------------------------------------------------------------- 1 SD-WAN-1 IP -- -- 192.0.2.3 Port1/44 4047 sd-wan disabled 192.0.2.1 ZTF 1400 UP 2 SPBoIP_T1 IP -- -- 192.0.2.15 Port1/25 500 vrf23 disabled 192.0.2.16 CONFIG 1000 N/A 3 SPBoIP_T2 IP -- -- 192.0.2.224 MLT10 2 vrf24 disabled 192.0.2.22 CONFIG 1600 N/A 4 Virtual-link-4 IP -- -- 4.4.4.4 PortRX-NNI 4051 GlobalRouter disabled 2.2.2.2 CONFIG 1600 N/A 5 Virtual-link-5 IP -- -- 5.5.5.5 Null 0 GlobalRouter disabled 2.2.2.2 CONFIG 1600 N/A --------------------------------------------------------------------------------------------------------------------------- 5 out of 5 Total Num of Logical ISIS interfaces ---------------------------------------------------------------------------------------------------------------------------