Information Technology Reference
In-Depth Information
The Serial3/0 interface is the connection to the core network. It requires the
clns enable
interface configuration command to enable the CLNS ES-IS process on that interface.
In the BGP NSAP address family configuration, network statements are used to inject
NSAPs from the IS-IS routing table into BGP, and the neighbor is activated to advertise
CLNS information. The BGP network statements for CLNS NSAPs can specify just the
area address or the full NSAP, depending on the granularity needed.
The configuration for the core router R3 is shown in Example A-8.
Core Router Configuration for R3
Example A-8
!
version 12.2
!
hostname R3
!
clns routing
clns filter-set DEFAULT_OUT deny 47...
clns filter-set DEFAULT_OUT permit default
!
interface Loopback0
ip address 10.1.1.3 255.255.255.255
!
interface Serial2/0
ip address 172.16.1.14 255.255.255.252
ip router isis
clns router isis
!
interface Serial3/0
ip address 172.16.1.6 255.255.255.252
clns enable
!
interface Serial4/0
ip address 172.16.1.9 255.255.255.252
ip router isis
clns router isis
!
router isis
net 47.3333.3333.3333.3333.00
is-type level-2-only
passive-interface Serial3/0
passive-interface Loopback0
!
router bgp 65100
no synchronization
no bgp default ipv4-unicast
bgp log-neighbor-changes
neighbor 10.1.1.2 remote-as 65100
neighbor 10.1.1.2 update-source Loopback0
