CCIE Service Provider (SP)_ Mock Lab

 

Question 1.1.

VARIATION 1:

The ISP-1 is re-configuring IS-IS on their network resources, the design team has decided to redesign the IS-IS topology in order to improve network scalability and stability.

Your tasks are:

1.       Re-configure the IS-IS applied on IS-IS models according to the Topology 3 & 4.

2.       After applying this changes ISP-1 Cooperation head studied loss of number of CLNP packets in the IS-IS level 2 Area. Your task is to configure ISP-1 to new Level 2 Area in order to eliminate periodic CLNP packet loss.

 VARIATION 2:

ISP-1 is experiencing some limitations on their network resources. Because of this, the design team has decided to redesign the IS-IS architecture in order to improve network scalability and stability. Your task is to reconfigure the IS-IS on ISP-1 network by splitting it into different IS-IS areas. According to Topology3 and Topology4 Follow the IS-IS levels defined in these diagrams.

 

Solution:

NOTES:   1.       The ISIS Area-ID on the topology-4 2.       IPv4 and IPv6 topology are consistent 3.       All physical interface network types are point to point 4.       Passive the loopback0 under the ISIS process on every Router 5.       You should leaking the route from Leve-2 into level-1 on the P1 and P2   ISP3 IGP (ISIS) 1.       The ISIS Area-ID on the topology (ASBR1 & 2) 2.       IPv4 and IPv6 topology are consistent 3.       All physical interface network types are point to point   IMP: IS-IS is pre-configured on all devices   Loopbacks of nodes that participate in both L1/L2 are advertised into the L2 areas!   Need to check the CSNP packet loss --- authentication??

 

RP/0/0/CPU0:ISP1-PE1#   router isis 1  is-type level-1  net 49.0020.0000.0000.0131.00  address-family ipv4 unicast   metric-style wide  !  address-family ipv6 unicast   metric-style wide   single-topology  !  interface Loopback0   passive   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/0   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/2   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  ! !

RP/0/0/CPU0:ISP1-PE2#   router isis 1  is-type level-1  net 49.0020.0000.0000.0132.00  address-family ipv4 unicast   metric-style wide  !  address-family ipv6 unicast   metric-style wide   single-topology  !  interface Loopback0   passive   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/0   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/3   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  ! !

 

 

RP/0/0/CPU0:ISP1-PE3#   router isis 1  is-type level-1  net 49.0010.0000.0000.0133.00  address-family ipv4 unicast   metric-style wide  !  address-family ipv6 unicast   metric-style wide   single-topology  !  interface Loopback0   passive   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/0   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/2   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  ! !

 

RP/0/0/CPU0:ISP1-P1#   prefix-set isis-ipv6   2001:db8::/64 ge 128 end-set ! prefix-set isis-ipv4-l2-l1   1.0.0.0/8 ge 32,   2.0.0.0/8 ge 32 end-set ! route-policy isis-ipv4-l2-l1   if destination in isis-ipv4-l2-l1 then     pass   endif end-policy ! route-policy isis-ipv6-l2-l1   if destination in isis-ipv6 then     pass   endif end-policy ! router isis 1  net 49.0010.0000.0000.0101.00  net 49.0020.0000.0000.0101.00  net 49.0030.0000.0000.0101.00  address-family ipv4 unicast   metric-style wide   propagate level 2 into level 1 route-policy isis-ipv4-l2-l1  !  address-family ipv6 unicast   metric-style wide   single-topology   propagate level 2 into level 1 route-policy isis-ipv6-l2-l1  !  interface Loopback0   passive   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/0   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/1   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/2   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/3   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/4   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/5   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/6   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/7   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  ! !

RP/0/0/CPU0:ISP1-P2#   prefix-set isis-ipv6   2001:db8::/64 ge 128 end-set ! prefix-set isis-ipv4-l2-l1   1.0.0.0/8 ge 32,   2.0.0.0/8 ge 32 end-set ! route-policy isis-ipv4-l2-l1   if destination in isis-ipv4-l2-l1 then     pass   endif end-policy ! route-policy isis-ipv6-l2-l1   if destination in isis-ipv6 then     pass   endif end-policy ! router isis 1  net 49.0010.0000.0000.0102.00  net 49.0020.0000.0000.0102.00  net 49.0030.0000.0000.0102.00  address-family ipv4 unicast   metric-style wide   propagate level 2 into level 1 route-policy isis-ipv4-l2-l1  !  address-family ipv6 unicast   metric-style wide   single-topology   propagate level 2 into level 1 route-policy isis-ipv6-l2-l1  !  interface Loopback0   passive   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/0   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/1   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/2   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/3   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/4   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/5   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/6   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/7   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  ! !

 

ISP1-RR1#   interface GigabitEthernet2  ip address 1.1.11.11 255.255.255.0  ip router isis 1  negotiation auto  ipv6 address 2001:DB8::1:1:11:11/122  ipv6 router isis 1  isis network point-to-point ! interface GigabitEthernet3  ip address 1.2.11.11 255.255.255.0  ip router isis 1  negotiation auto  ipv6 address 2001:DB8::1:2:11:11/122  ipv6 router isis 1  isis network point-to-point ! router isis 1  net 49.0030.0000.0000.0111.00  is-type level-2-only  metric-style wide  passive-interface Loopback0 !

 

ISP1-RR2#   interface GigabitEthernet2  ip address 1.1.12.12 255.255.255.0  ip router isis 1  negotiation auto  ipv6 address 2001:DB8::1:1:12:12/122  ipv6 router isis 1  isis network point-to-point ! interface GigabitEthernet3  ip address 1.2.12.12 255.255.255.0  ip router isis 1  negotiation auto  ipv6 address 2001:DB8::1:2:12:12/122  ipv6 router isis 1  isis network point-to-point ! router isis 1  net 49.0030.0000.0000.0112.00  is-type level-2-only  metric-style wide  passive-interface Loopback0 !

 

RP/0/0/CPU0:ISP1-ASBR1#   router isis 1  is-type level-2-only  net 49.0030.0000.0000.0121.00  address-family ipv4 unicast   metric-style wide  !  address-family ipv6 unicast   metric-style wide   single-topology  !  interface Loopback0   passive   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/0   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/3   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  ! !

 

RP/0/0/CPU0:ISP1-ASBR2#   router isis 1  is-type level-2-only  net 49.0030.0000.0000.0122.00  address-family ipv4 unicast   metric-style wide  !  address-family ipv6 unicast   metric-style wide   single-topology  !  interface Loopback0   passive   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/0   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/3   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  ! !

 

RP/0/0/CPU0:ASBR1-ISP3#   router isis 3  is-type level-1  net 49.0040.0000.0000.0121.00  address-family ipv4 unicast   metric-style wide  !  address-family ipv6 unicast   metric-style wide   single-topology  !  interface Loopback0   passive   address-family ipv4 unicast   !   address-family ipv6 unicast   !  !  interface GigabitEthernet0/0/0/5   point-to-point   address-family ipv4 unicast   !   address-family ipv6 unicast   !  ! !

 

ISP3-ASBR2#   interface GigabitEthernet0/1  ip router isis 3  ipv6 router isis 3  isis network point-to-point ! router isis 3  net 49.0040.0000.0000.0122.00  metric-style wide  passive-interface Loopback0 !

VERIFICATION:

Show Commands:

  show isis nei

·         show ip route isis | inc /32

·         show route ipv6 isis | include /128

·         show ipv6 route isis | inc /128