Multi-area SPB Configuration Example

The following figure is an example of the devices connecting to each other in the Multi-area SPB network.
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Multi-area SPB network example
MultiArea SPB Configuration Example

The following sections display an example to configure the two boundary nodes in the Multi-area SPB network (BG1 and BG2), to enable remote Intermediate-System-to-Intermediate-System (IS-IS), and to configure the layer 2 and layer 3 unicast redistribution.

Note

Note

You must first configure basic SPBM and IS-IS infrastructure. For more information, see SPBM configuration examples.

Boundary Node BG1 Configuration

enable
configure terminal
router isis remote
manual-area 49.0050
spbm 1 nick-name 1.21.15
exit
router isis remote enable
show isis area-vnode
=================================================================================================
                                            ISIS SPBM Multi-Area VNode Info
=================================================================================================
VNODE             VNODE         VNODE              REPRESENTED      REPRESENTED    VNODE
SYSTEM-ID         NICK-NAME     HOST-NAME          AREA-ADDRESS     AREA           USED-IN-AREA
-------------------------------------------------------------------------------------------------
9200.30ff.fff0    9.00.30       vn-30              49.0030          HOME           REMOTE
9200.50ff.fff0    9.00.50       vn-50              49.0050          REMOTE         HOME
-------------------------------------------------------------------------------------------------
show isis remote
======================================================================================
                             ISIS Remote Area Info
======================================================================================
                            AdminState : enabled
                             System ID : d887.66f6.e486
                     Num of Interfaces : 0
                 Num of Area Addresses : 1
              Dynamically Learned Area :
                  Multi-Area OperState : disabled

interface gigabitEthernet 1/4,1/9
isis remote
isis remote spbm 1
isis remote enable
exit
show isis adjacencies
====================================================================================================================
                                                         ISIS Adjacencies
====================================================================================================================
INTERFACE       L STATE    UPTIME PRI   HOLDTIME   SYSID             HOST-NAME     STATUS   AREA     AREA-NAME
--------------------------------------------------------------------------------------------------------------------
Port1/3         1 UP       20:33:27 127  19        b0ad.aa4d.b884    2118-50       ACTIVE   HOME     area-9.00.30
PortVirtual     1 UP       20:33:27 127   0        9200.50ff.fff0    area-9.00.50  ACTIVE   HOME     area-9.00.30
Port1/9         1 UP       00:01:16 127  27        d884.66f6.e484    BN2116        ACTIVE   HOME     area-9.00.30
Port1/4         1 UP       20:33:27 127  20        b0ad.aa40.1484    2119-50       ACTIVE   REMOTE   area-9.00.50
PortVirtual     1 UP       20:33:27 127   0        9200.30ff.fff0    area-9.00.30  ACTIVE   REMOTE   area-9.00.50
Port1/9         1 UP       00:01:00 127  21        d884.66f6.e486    BN2116        ACTIVE   REMOTE   area-9.00.50
--------------------------------------------------------------------------------------------------------------------
Home:   3 out of 3 interfaces have formed an adjacency
Remote: 3 out of 3 interfaces have formed an adjacency
--------------------------------------------------------------------------------------------------------------------

router isis
multi-area l2 redistribute i-sid permit-all
exit
isis multi-area l2 apply redistribute i-sid
show isis multi-area l2 redistribute i-sid
========================================================================================
                        MULTI AREA L2 ISID REDIST POLICY
========================================================================================
Permit               Except List Name
----------------------------------------------------------------------------------------
permit-all           -
----------------------------------------------------------------------------------------

router isis
multi-area ip redistribute unicast 
exit
isis multi-area ip apply redistribute unicast 
show isis multi-area ip redistribute unicast
========================================================================================
         ISIS Multiarea Redistribute List for ip unicast - GlobalRouter
========================================================================================
DIRECTION            ENABLE     RPOLICY
----------------------------------------------------------------------------------------
home-to-remote       TRUE
remote-to-home       TRUE
----------------------------------------------------------------------------------------

Boundary Node BG2 Configuration

enable
configure terminal
router isis remote
manual-area 49.0050
spbm 1 nick-name 1.21.16
exit
router isis remote enable
show isis area-vnode
=================================================================================================
                                            ISIS SPBM Multi-Area VNode Info
=================================================================================================
VNODE             VNODE         VNODE              REPRESENTED      REPRESENTED    VNODE
SYSTEM-ID         NICK-NAME     HOST-NAME          AREA-ADDRESS     AREA           USED-IN-AREA
-------------------------------------------------------------------------------------------------
9200.02ff.fff0    0.00.10       vn-area-0.00.10    10.0010           HOME           REMOTE
9200.01ff.fff0    0.00.20       vn-area-0.00.20    20.0020           REMOTE         HOME
-------------------------------------------------------------------------------------------------
show isis remote
=========================================================================================
                             ISIS Remote Area Info
=========================================================================================
                            AdminState : enabled
                             System ID : d884.66f6.e486
                     Num of Interfaces : 0
                 Num of Area Addresses : 1
              Dynamically Learned Area :
                  Multi-Area OperState : disabled

interface gigabitEthernet 1/4,1/9
isis remote
isis remote spbm 1
isis remote enable
exit
show isis adjacencies
====================================================================================================================
                                                         ISIS Adjacencies
====================================================================================================================
INTERFACE       L STATE   UPTIME   PRI HOLDTIME   SYSID             HOST-NAME        STATUS   AREA     AREA-NAME
--------------------------------------------------------------------------------------------------------------------
Port1/3         1 UP      20:33:27 127  19        b0ad.aa4d.b884    2118-50          ACTIVE   HOME     area-9.00.30
PortVirtual     1 UP      20:33:27 127   0        9200.50ff.fff0    area-9.00.50     ACTIVE   HOME     area-9.00.30
Port1/9         1 UP      00:01:16 127  27        d887.66f6.e484    BN2117           ACTIVE   HOME     area-9.00.30
Port1/4         1 UP      20:33:27 127  20        b0ad.aa40.1484    2119-50          ACTIVE   REMOTE   area-9.00.50
PortVirtual     1 UP      20:33:27 127   0        9200.30ff.fff0    area-9.00.30     ACTIVE   REMOTE   area-9.00.50
Port1/9         1 UP      00:01:00 127  21        d887.66f6.e486    BN2117           ACTIVE   REMOTE   area-9.00.50

--------------------------------------------------------------------------------------------------------------------
Home:   3 out of 3 interfaces have formed an adjacency
Remote: 3 out of 3 interfaces have formed an adjacency
--------------------------------------------------------------------------------------------------------------------

router isis
multi-area l2 redistribute i-sid permit-all
exit
isis multi-area l2 apply redistribute i-sid
show isis multi-area l2 redistribute i-sid
======================================================================================
                        MULTI AREA L2 ISID REDIST POLICY
======================================================================================
Permit               Except List Name
--------------------------------------------------------------------------------------
permit-all           -
--------------------------------------------------------------------------------------

multi-area ip redistribute unicast 
exit
isis multi-area ip apply redistribute unicast 
show isis multi-area ip redistribute unicast
======================================================================================
         ISIS Multiarea Redistribute List for ip unicast - GlobalRouter
======================================================================================
DIRECTION            ENABLE     RPOLICY
--------------------------------------------------------------------------------------
home-to-remote       TRUE
remote-to-home       TRUE
--------------------------------------------------------------------------------------