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9.9 ISIS Configuration Examples

A simple example, with MD5 authentication enabled:

!
interface eth0
 ip router isis FOO
 isis network point-to-point
 isis circuit-type level-2-only
!
router isis FOO
net 47.0023.0000.0000.0000.0000.0000.0000.1900.0004.00
 metric-style wide
 is-type level-2-only

A Traffic Engineering configuration, with Inter-ASv2 support.

- First, the ’zebra.conf’ part:

hostname HOSTNAME
password PASSWORD
log file /var/log/zebra.log
!
interface eth0
 ip address 10.2.2.2/24
 mpls-te on
 mpls-te link metric 10
 mpls-te link max-bw 1.25e+06
 mpls-te link max-rsv-bw 1.25e+06
 mpls-te link unrsv-bw 0 1.25e+06
 mpls-te link unrsv-bw 1 1.25e+06
 mpls-te link unrsv-bw 2 1.25e+06
 mpls-te link unrsv-bw 3 1.25e+06
 mpls-te link unrsv-bw 4 1.25e+06
 mpls-te link unrsv-bw 5 1.25e+06
 mpls-te link unrsv-bw 6 1.25e+06
 mpls-te link unrsv-bw 7 1.25e+06
 mpls-te link rsc-clsclr 0xab
!
interface eth1
 ip address 10.1.1.1/24
 mpls-te on
 mpls-te link metric 10
 mpls-te link max-bw 1.25e+06
 mpls-te link max-rsv-bw 1.25e+06
 mpls-te link unrsv-bw 0 1.25e+06
 mpls-te link unrsv-bw 1 1.25e+06
 mpls-te link unrsv-bw 2 1.25e+06
 mpls-te link unrsv-bw 3 1.25e+06
 mpls-te link unrsv-bw 4 1.25e+06
 mpls-te link unrsv-bw 5 1.25e+06
 mpls-te link unrsv-bw 6 1.25e+06
 mpls-te link unrsv-bw 7 1.25e+06
 mpls-te link rsc-clsclr 0xab
 mpls-te neighbor 10.1.1.2 as 65000

- Then the ’isisd.conf’ itself:

hostname HOSTNAME
password PASSWORD
log file /var/log/isisd.log
!
!
interface eth0
 ip router isis FOO
!
interface eth1
 ip router isis FOO
!
!
router isis FOO
 isis net 47.0023.0000.0000.0000.0000.0000.0000.1900.0004.00
  mpls-te on
  mpls-te router-address 10.1.1.1
!
line vty