CCIE Service Provider (SP)_Mock Lab 3

 

CCIE SP_Mock Lab 3

ISP-1 needs to customize its LDP configuration for scalability and security measures.

ISP-2 also wants to improve operations so that LDP is enabled only on required interfaces. Your task is to implement these changes

 a)       Configure the ISP-1 to allocate and send labels for the IPv4 loopback addresses only.       

b)     b)  Re-configure the LDP on the ISP-2 in such a way that LDP does not have to be enabled in every interface, instead configure the ISP-2 so that LDP is enabled globally, to ensure that the configuration runs easier, faster and error free.

NOTES:   Configuring ISP1 with MPLS LDP for each interface Configuring ISP1 with LDP label allocation for /32 loopbacks only Configuring ISP2 with mpls ldp auto-config under OSPF   1.       You are not allowed to use ACL in ISP-1. 2.       In ISP-2 do not use the mpls ip command in the interface configuration mode.   MPLS LDP Requirement o   LDP Session established on the physical interface on the topology o   LDP Router-id is the loopback0 o   ISP1 just only allocate label for host route

MPLS LDP – ISP1 – Answer 

RP/0/0/CPU0:ISP1-ASBR1#   ! mpls ldp  router-id 1.0.0.121  address-family ipv4   label    local     allocate for host-routes    !   !  !  interface GigabitEthernet0/0/0/0  !  interface GigabitEthernet0/0/0/3  ! !   RP/0/0/CPU0:ISP1-ASBR2#   ! mpls ldp  router-id 1.0.0.122  address-family ipv4   label    local     allocate for host-routes    !   !  !  interface GigabitEthernet0/0/0/0  !  interface GigabitEthernet0/0/0/3  ! !   RP/0/0/CPU0:ISP1-P1#   mpls ldp  router-id 1.0.0.101  address-family ipv4   label    local     allocate for host-routes    !   !  !  interface GigabitEthernet0/0/0/0  !  interface GigabitEthernet0/0/0/3  !  interface GigabitEthernet0/0/0/4  !  interface GigabitEthernet0/0/0/5  !  interface GigabitEthernet0/0/0/6  !  interface GigabitEthernet0/0/0/7  ! !   RP/0/0/CPU0:ISP1-P2#   mpls ldp  router-id 1.0.0.102  address-family ipv4   label    local     allocate for host-routes    !   !  !  interface GigabitEthernet0/0/0/0  !  interface GigabitEthernet0/0/0/3  !  interface GigabitEthernet0/0/0/4  !  interface GigabitEthernet0/0/0/5  !  interface GigabitEthernet0/0/0/6  !  interface GigabitEthernet0/0/0/7  ! !   RP/0/0/CPU0:ISP1-PE1#   mpls ldp  router-id 1.0.0.131  address-family ipv4   label    local     allocate for host-routes    !   !  !  interface GigabitEthernet0/0/0/0  !  interface GigabitEthernet0/0/0/2  !   RP/0/0/CPU0:ISP1-PE2#   mpls ldp  router-id 1.0.0.132  address-family ipv4   label    local     allocate for host-routes    !   !  !  interface GigabitEthernet0/0/0/0  !  interface GigabitEthernet0/0/0/3 !   RP/0/0/CPU0:ISP1-PE3#     mpls ldp  router-id 1.0.0.133  address-family ipv4   label    local     allocate for host-routes    !   !  !  interface GigabitEthernet0/0/0/0  !  interface GigabitEthernet0/0/0/2  !

VERIFICATION:   show mpls ldp neighbor | inc Peer show mpls forwarding | include /32

 

MPLS LDP – ISP2 – Answer to 1.4

ISP2-ASBR1#   ip cef ! router ospf 2  mpls ldp autoconfig ! mpls ldp router-id Loopback0 force !   ISP2-ASBR2#     ip cef   router ospf 2  mpls ldp autoconfig ! mpls ldp router-id Loopback0 force !   RP/0/0/CPU0:ISP2-P1#   router ospf 2  mpls ldp auto-config ! mpls ldp  router-id 2.0.0.101 !   RP/0/0/CPU0:ISP2-P2#   router ospf 2  mpls ldp auto-config ! mpls ldp  router-id 2.0.0.102 !   RP/0/0/CPU0:ISP2-PE1#   router ospf 2  mpls ldp auto-config ! mpls ldp  !  router-id 2.0.0.131 !   ISP2-PE2#   router ospf 2  mpls ldp autoconfig ! mpls ldp router-id Loopback0 force !   ISP2-RR1#   router ospf 2  mpls ldp autoconfig !         mpls ldp router-id Loopback0 force !   ISP2-RR2#   router ospf 2  mpls ldp autoconfig ! mpls ldp router-id Loopback0 force !

VERIFICATION:   show mpls ldp neighbor | inc Peer show mpls forwarding | include /32

 

MPLS LDP – ISP3 – Answer to 1.4

RP/0/0/CPU0:ISP3-ASBR1# ! mpls ldp  router-id 3.0.0.121  address-family ipv4   label    local     allocate for host-routes    !   !  !  interface GigabitEthernet0/0/0/5  ! !   ISP3-ASBR2# ! interface GigabitEthernet0/1  ip address 3.21.22.22 255.255.255.0   mpls ip ! mpls ldp router-id Loopback0 force !

 

VERIFICATION:   show mpls ldp neighbor | inc Peer show mpls forwarding | include /32