Service Provider Routing and Switching

Click the Exhibit button.
[edit]
user@PE-1# run show l2 circuit connections
Layer-2 Circuit Connections:
Legend for connection status (St)
EI - - encapsulation invalid NP - - interface h/w not present
MM - - mtu mismatch Dn - - down
EM - - encapsulation mismatch VC-Dn - -

Virtual circuit Down -
CM - - control-word mismatch Up - -
operational
VM - - vlan id mismatch CF - - Call
admission control failure
OL - - no outgoing label IB - - TDM
incompatible bitrare
NC - - intf encaps not CCC/TCC TM - - TDM
misconfiguration
BK - - Backup Connection ST - - Standby

Connection -
CB - - rcvd cell-bundle size bad SP - - Static

Pseudowire -
LD - - local site signaled down RS - - remote
site standby
RD - - remote site signaled down XX - - unknown

Legend for interface status -

Up - - operational -

Dn - - down -

Neighbor: 4.4.4.4 -
Interface Type St Time
last up #Up trans
ge-0/0/1.512 (vc 1) rmt OL
[edit]
user@PE-1# show protocols ldp
interface ge-0/0/2.0;
[edit]
user@PE-1# show protocols l2circuit
neighbor 4.4.4.4 {
interface ge-0/0/1.512 {
virtual-circuit-id 1
}
}
[edit]
user@PE-1# show interfaces ge-0/0/1
vlan-tagging;
encapsulation vlan-ccc;
unit 512 {
encapsulation vlan-ccc;
vlan-id 512;
}
[edit]
uxer@P-1 # show protocols ldp
interface all;
[edit]
user@P-2# show protocols ldp
interface all;
[edit]
user@PE-2# run show l2circuit connections
Layer-2 Circuit Connections:
Legend For connection status (St)
EI - - encapsulation invalid NP - - interface h/w not present
MM - - mtu mismatch Dn - - down
EM - - encapsulation mismatch VC-Dn - -

Virtual circuit Down -
CM - - control-word mismatch Up - -
operational
VM - - vlan id mismatch CF - - Call
admission control failure
OL - - no outgoing label IB - - TDM
incompatible bitrate
NC - - intf encaps not CCC/TCC TM - - TDM
misconfiguration
BK - - Backup Connection ST - - Standby

Connection -
CB - - rcvd cell-bundle size bad SP - - Static

Psewdowire -
LD - - Local site signaled down RS - - remote
site standby
RD - - remote site signaled down XX - - unknown

Legend for interface status -

UP - - operational -

DN - - down -

Neighbor: 1.1.1.1 -
Interface Type St Time
last up #Up trans
ge-0/0/1.512 (vc 1) rmt OL
[edit]
user@PE-2# show protocols ldp
interface ge-0/0/2.0;
[edit]
user@PE-2# show protocols l2circuit
neighbor 1.1.1.1 {
interface ge-0/0/1.512 {
virtual-circuit-id 1;
}
}
[edit]
user@PE-2# show interfaces ge-0/0/1
vlan-tagging;
encapsulation vlan-ccc;
unit 512 {
encapsulation vlan-ccc;
vlan-id 512;
}
Referring to the exhibit, you have configured an L2 circuit that connects Site-1 and Site-2, but the L2 circuit is not functioning. The topology in this scenario is shown below.
Site-1 > PE-1 > P-1 > P-2 > PE-2 Site-2
Which action will allow communication between Site-1 and Site-2?

Click the Exhibit button.
[edit]
user@PE-1# show protocols
rsvp {
interface all;
}
mpls {
label-switched-path p1 {
from 1.1.1.1;
to 4.4.4.4;
no cspf;
}
interface all;
}
bgp {
group Int {
type Internal;
local-address 1.1.1.1;
family inet {
unicast;
}
family inet-vpn {
unicast;
}
neighbor 2.2.2.2;
neighbor 3.3.3.3;
neighbor 4.4.4.4;
}
}
ospf {
area 0.0.0.0 {
interface ge-0/0/2.0;
interf lo0.0;
}
}
[edit]
user@p-1# show protocols
mpls {
interface all;
}
ospf {
area 0.0.0.0 {
interface ge-0/0/1.0;
interface ge-0/0/2.0;
interface ge-1o0.0;
}
}
[edit]
user@p-2# show protocols
mpls {
interface all;
}
ospf {
area 0.0.0.0 {
interface ge-0/0/1.0;
interface ge-0/0/2.0;
interface ge-lo0.0;
}
}
[edit]
user@p-2# show protocols
rsvr {
interface all;
}
mpls {
label-switched-path p2 {
from 4.4.4.4;
to 1.1.1.1;
no-ospf
}
interface all;
}
bgp {
group INT {
type internal;
local-address 4.4.4.4,
family inet {
unicast;
neighbor 2.2.2.2;
neighbor 3.3.3.3;
neighbor 1.1.1.1;
}
}
ospf {
area 0.0.0.0 {
interface ge-0/0/2.0;
interface 1o0;
}
}
Referring to the exhibit, you have configured an L3VPN that connects Site-1 and Site-2 together, but the BGP routes are being hidden on the PE routers. The topology in this scenario is shown below.
Site-1 > PE-1 > P-1 > P-2 > PE-2 > Site-2
Which two acttions would allow communication Site-1 and Site-2? (Choose two.)

A layer 2 circuit (RFC 4447) is established between two PE routers to provide connectivity between two customer sites.
Which two statements related to this deployment are true?

Click the exhibit button.
[edit protocols pim]
user@R1# show
rp {
bootstrap {
family inet {
priority 250;
}
}
local {
address 10.220.1.1;
priority 1;
group-ranges {
224.1.1.11/32;
224.0.0.0/4;
}
}
}
interface all;
interface fxp0.0 {
disable;
}
[edit protocols pim]
user@R4# show
rp {
bootstrap {
family inet {
priority 249;
}
}
local {
address 10.220.1.4;
priority 5;
group-ranges {
224.1.1.12/32;
224.0.0.0/4;
}
}
}
interface all;
interface fxp0.0 {
disable;
}
Referring to the exhibit, which router will be the RP?

Click the Exhibit button.
[edit] [edit]
lab@r1# show protocols lab@r2# show protocols
ospf3 { ospf3 {
area 0.0.0.0 { area 0.0.0.0 {
interface 1o0.0; interface 1o0.0;
interface ge-1/0/6.0; interface ge-1/0/7.0;
}
}
lo0 = 172.16.100.1/32 [edit]
fc00:1000::1/128 lab@r2# show protocols
ospf3 {
area 0.0.0.0 {
interface 1o0.0;
interface ge-1/1/7.0;
interface ge-1/1/6.0;
}
}
You must ensure that r1's IPv4 loopback address exists in r3's inet 0 routing table.
Referring to the exhibit, which statement is true?