IS-IS adjacency problem

[cisco_lad2004]

Hi all

classic problem where looks right, but no adjacency is established.

I checked MTU, authentication, I can ping remote interface.

R1

interface TenGigabitEthernet2/3.304

encapsulation dot1Q 304

ip address x.x.x.x 255.255.255.254

ip pim sparse-dense-mode

ip router isis

isis circuit-type level-2-only

isis network point-to-point

isis authentication mode md5

isis authentication key-chain sam

isis csnp-interval 10

R2

interface Vlan304

ip address x.x.x.x 255.255.255.254

ip pim sparse-dense-mode

ip router isis

carrier-delay msec 16

isis circuit-type level-2-only

isis network point-to-point

isis authentication mode md5

isis authentication key-chain sam

on R2 shows ES-IS & R1 show init state

TIA

Sam

[royalblues]

Are you using IP subnet zero in your configuration?

The subnet mask seems to suggest the same.

Can you try changing the SM to /30 and check

Also post the output of debug isis adj-packets

HTH, rate if it does

Narayan

[cisco_lad2004]

Hi there

as everything was adding up and adjacency was still down...I reloaded the router and all is fine. Unfortunately, I can tell what was the initial cause.

Thanks

Sam

[mheusinger]

Hi Sam,

can you please also post your "router isis" config? Second, does it work when only configuring "ip router isis" on the interfaces and nothing else relating to isis?

Regards, Martin

[royalblues]

Sam,

Do u mean to say it is working now?

Maybe you should have tried clearing the ISIS process once :-)

Narayan

[cisco_lad2004]

yes it sis working.

I have actually removed IS-IS under interfaces from both sides and reconfigured again. teh cisco recomemndation is that if all looks as it should but adjacency is not established....contact TAC, I tried a reload.

it will be interesting to see if this issue will come up again.

Thanks again !

Sam