ISIS Adjacency issues

toufiq

[FONT=&quot][/FONT] [FONT=&quot][/FONT]Dear All,

As I am preparing for my JNCIP-M/T exam.currently I am going through the ISIS Topic.I have configured ISIS on all seven routers with different area IDs.diagrame is available on page number 287 of JNCIP-M/T book.

After the complete configuration I checked the adjacency of routers and found that some adjacencies some time goies down and some times goes into initilization.
Please find below the onfiguration of R3,R4 and R5 and please guide if configuration issue is found.

R3-Configuration.
version 8.5R1.14;
system {
root-authentication {
encrypted-password "$1$vniFixHf$UehnJAbHqWb62cCgvL8Tr1"; ## SECRET-DATA
}
}
interfaces {
em0 {
unit 0 {
family inet {
address 10.0.4.13/30;
}
family iso;
}
}
em1 {
unit 0 {
family inet {
address 10.0.2.5/30;
}
family iso;
}
}
em2 {
unit 0 {
family inet {
address 10.0.4.1/30;
}
family iso;
}
}
em3 {
unit 0 {
family inet {
address 10.0.2.2/30;
}
family iso;
}
}
em4 {
unit 0 {
family inet {
address 172.16.0.13/30;
}
family iso;
}
}
lo0 {
unit 0 {
family inet {
address 10.0.3.3/32;
}
family iso {
address 49.0003.0100.0000.3003.00;
}
}
}
}
routing-options {
aggregate {
route 10.0.4.0/22;
}
}
protocols {
isis {
export [ leak1 summ ];
interface em0.0 {
level 2 disable;
}
interface em1.0 {
level 1 disable;
}
interface em2.0 {
level 2 disable;
}
interface em3.0 {
level 1 disable;
}
interface lo0.0 {
level 1 disable;
}
}
}
policy-options {
policy-statement leak1 {
term 1 {
from {
protocol isis;
level 2;
route-filter 10.0.3.0/24 longer;
}
to level 1;
then accept;
}
term 2 {
from {
protocol direct;
level 2;
route-filter 10.0.3.0/24 longer;
}
to level 1;
then accept;
}
}
policy-statement summ {
term 1 {
from protocol aggregate;
to level 2;
then accept;
}
term 2 {
from {
route-filter 10.0.4.0/22 longer;
}
to level 2;
then reject;
}
}
}

R4 Configuration.
system {
host-name R4;
root-authentication {
encrypted-password "$1$.jgU4LBm$3Amzz1g9nfwqV0RuG1lx10"; ## SECRET-DATA
}
}
interfaces {
em1 {
unit 0 {
family inet {
address 10.0.2.6/30;
}
family iso;
}
}
em2 {
unit 0 {
family inet {
address 10.0.2.10/30;
}
family iso;
}
}
em3 {
unit 0 {
family inet {
address 10.0.4.9/30;
}
family iso;
}
}
lo0 {
unit 0 {
family inet {
address 10.0.3.4/32;
}
family iso {
address 49.0003.0100.0000.3004.00;
}
}
}
}
protocols {
isis {
traceoptions {
file isis;
flag hello detail;
flag error detail;
}
export [ leak1 summ ];
interface all;
interface em1.0 {
level 1 disable;
}
interface em2.0 {
level 1 disable;
}
interface em3.0 {
level 2 disable;
}
interface lo0.0 {
level 1 disable;
}
}
}
policy-options {
policy-statement leak1 {
term 1 {
from {
protocol isis;
level 2;
route-filter 10.0.3.0/24 longer;
}
to level 1;
then accept;
}
term 2 {
from {
protocol direct;
level 2;
route-filter 10.0.3.0/24 longer;
}
to level 1;
then accept;
}
}
policy-statement summ {
term 1 {
from protocol aggregate;
to level 2;
then accept;
}
term 2 {
from {
route-filter 10.0.4.0/22 longer;
}
to level 2;
then reject;
}
}
}
R5 Configuration.
system {
host-name R5;
root-authentication {
encrypted-password "$1$qX5rqy8v$NOZebXK.1LiT1FTOcDigt0"; ## SECRET-DATA
}
}
interfaces {
em0 {
unit 0 {
family inet {
address 10.0.8.6/30;
}
family iso;
}
}
em1 {
unit 0 {
family inet {
address 10.0.8.9/30;
}
family iso;
}
}
em2 {
unit 0 {
family inet {
address 10.0.2.9/30;
}
family iso;
}
}
em3 {
unit 0 {
family inet {
address 10.0.2.1/30;
}
family iso;
}
}
lo0 {
unit 0 {
family inet {
address 10.0.3.5/32;
}
family iso {
address 49.0002.0100.0000.3005.00;
}
}
}
}
protocols {
isis {
traceoptions {
file isis;
flag hello detail;
flag error detail;
}
interface em0.0 {
level 2 disable;
}
interface em1.0 {
level 2 disable;
}
interface em2.0 {
level 1 disable;
}
interface em3.0 {
level 1 disable;
}
interface lo0.0 {
level 1 disable;
}
}
}

Please note that I am using olive for Lab practice.

Regards,
Toufiq

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