The following figure is an example of the devices connecting to each other in the Multi-area SPB network.
Note
The example applies to 5520 Series, 5720 Series, 7520 Series, and 7720 Series.
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
You must first configure basic SPBM and IS-IS infrastructure. For more information, see SPBM Configuration Examples.
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
----------------------------------------------------------------------------------------
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
--------------------------------------------------------------------------------------