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Appendix A: Configurations

Lab 1: Configure IS-IS as a Single Flood Domain

ip routing
!
interface Ethernet1
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet4
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet5
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Loopback0
    isis enable 1
!
router isis 1
    net 49.0000.0000.0000.0001.00
    is-type level-2
    address-family ipv4 unicast

ip routing
!
interface Ethernet1
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet2
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet3
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet4
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet5
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Loopback0
    isis enable 1
!
router isis 1
    net 49.0000.0000.0000.0002.00
    is-type level-2
    address-family ipv4 unicast

ip routing
!
interface Ethernet3
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet4
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet5
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Loopback0
    isis enable 1
!
router isis 1
    net 49.0000.0000.0000.0003.00
    is-type level-2
    address-family ipv4 unicast

ip routing
!
interface Ethernet3
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet4
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet5
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Loopback0
    isis enable 1
!
router isis 1
    net 49.0000.0000.0000.0004.00
    is-type level-2
    address-family ipv4 unicast

ip routing
!
interface Ethernet1
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet2
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet3
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet4
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet5
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Loopback0
    isis enable 1
!
router isis 1
    net 49.0000.0000.0000.0005.00
    is-type level-2
    address-family ipv4 unicast

ip routing
!
interface Ethernet1
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet4
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Ethernet5
    isis enable 1
    isis circuit-type level-2
    isis network point-to-point
!
interface Loopback0
    isis enable 1
!
router isis 1
    net 49.0000.0000.0000.0006.00
    is-type level-2
    address-family ipv4 unicast

Lab 2: Loopback Only Advertisements in LSPs

Configurations below apply to all nodes, EOS1 to EOS6:

interface Loopback0
  isis passive
!
router isis 1
  advertise passive-only

Lab 3: Broadcast Network

ip routing
!
interface Loopback0
    isis enable 1
    isis passive
!
interface vlan100
    isis enable 1
    isis circuit-type level-2
!
router isis 1
    net 49.0000.0000.0000.0011.00
    is-type level-2
    advertise passive-only
    address-family ipv4 unicast

ip routing
!
interface Loopback0
    isis enable 1
    isis passive
!
interface vlan100
    isis enable 1
    isis circuit-type level-2
!
router isis 1
    net 49.0000.0000.0000.0012.00
    is-type level-2
    advertise passive-only
    address-family ipv4 unicast

ip routing
!
interface Loopback0
    isis enable 1
    isis passive
!
interface vlan100
    isis enable 1
    isis circuit-type level-2
!
router isis 1
    net 49.0000.0000.0000.0013.00
    is-type level-2
    advertise passive-only
    address-family ipv4 unicast