clns router isis tag command is not allowed

apratt2009 · ‎05-18-2009

the current version dont allow configure the command "clns router isis dcn" in a interface and asociate to vrf.

the release is 12.2(33)SRC3.(7609OSR)

I want to know if have another way for configure this?

Â¡

interface Vlan350

description BSS O&M

ip vrf forwarding o&m

ip address 10.95.29.2 255.255.255.192

no ip redirects

no ip unreachables

logging event link-status

standby 106 ip 10.95.29.1

standby 106 timers msec 300 1

standby 106 preempt

clns router isis dcn (dont allow this command)

service-policy input QoS-LAN-O&M

end

!

Laurent Aubert · ‎05-18-2009

Hi,

CLNS is not supported if ip vrf forwarding is configured. Only ISIS for IP is supported

HTH

Laurent.

Giuseppe Larosa · ‎05-21-2009

Hello Alfredo,

to carry CLNS over MPLS VPN I used point GRE tunnels end to end between CE nodes.

you need to disable hello padding on GRE interface and you should use a reduced clns mtu to make it to work

Hope to help

Giuseppe

apratt2009 · ‎06-01-2009

Hello Giuseppe,

can you send a example configuration or a link how to make this config ?

Giuseppe Larosa · ‎06-01-2009

Hello Alfredo,

we moved the CLNS to the CE node.

We built a point to point GRE tunnel from CE to remote CE node end to end

CE1--PE1 --- MPLS cloud --- PE2 -- CE2

CE1:

peers with PE1 and CE1-PE1 link is the VRF access link.

CE1 has an IOS version that supports IPv4 and CLNS routing

int tunnel 100

tunnel source CE1:ipaddr

tunnel destination CE2:ipaddr

clns router isis

see the following:

router isis

net 39.380f.0065.0064.0000.0102.0304.0200.0000.0009.00

is-type level-1

no hello padding point-to-point

lsp-mtu 1000

!

interface Tunnel471

no ip address

no ip directed-broadcast

ip route-cache distributed

clns mtu 1400

clns router isis

isis priority 70 level-1

tunnel source FastEthernet5/0/0.4

tunnel destination 10.103.160.241

tunnel checksum

!

this worked for us and allowed to integrate in an MPLS VPN a management network where there is SDH equipment using CLNS to communicate with SDH manager servers.

Hope to help

Giuseppe

drubiogr · ‎06-01-2009

Hi,

AFAIK we don't support CLNS routing in vrf's.

I've tried to configure it and this is what I get,

PE-Massa(config-if)#clns router isis test

%CLNS: Cannot enable CLNS for non-default VRF interface

I hope it helps.

Rgds,

Daniel

MohdHaizarAbdulLatiff4746 · ‎07-30-2023

Hi All,

We also have an issue to perform command related to CLNS Routing, the detail information as below:

1) Previous router model used by customer is Cisco 2800 and currently we having migration to new router model - Cisco ISR 4431

2) The firmware version for both router:
- Cisco 2800 (Old Model) - version 12.4
- Cisco ISR 4431 (New Model) - version 17.9

3)the current version dont allow configure the command "clns router isis backbone10" in a interface and associate to vrf.
the release is Cisco IOS XE Software, Version 17.09.03a
Cisco IOS Software [Cupertino], ISR Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 17.9.3a, RELEASE SOFTWARE (fc2)

The error message :
Router(config-subif)# clns router isis backbone10
%CLNS: Cannot enable CLNS for non-default VRF interface

Therefore, we would like to know if the current firmware version is the issue or have another way to configure this ?