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Tunnels in multiple OSPF areas

  • From: Kurien Joseph <kurienjoseph@yahoo.com>
  • Date: Tue, 11 Nov 2003 11:31:03 -0800 (PST)
  • Resent-Date: Tue, 11 Nov 2003 15:10:15 -0500
  • To: mpls-ops@mplsrc.com

I have been trying to configure a tunnel across multiple OSPF area on a cisco network. I have been refering to the cisco docs that talk about configuration of tunnels on multiple OSPF areas.

There was a section about configuring an Area Border router(ABR). My question is if  ABR a specialized piece of hardware or software patch loaded ? I have an MPLS 3600 (IOS12.3) router in the border between ospf areas. Its configured as follows

router ospf 1
 mpls traffic-eng router-id Loopback0
 mpls traffic-eng area 0
 log-adjacency-changes
 network 10.225.48.0 0.0.0.255 area 0
 network 10.225.50.0 0.0.0.255 area 0
 network 10.226.0.0 0.0.0.255 area 6
 network 10.226.1.0 0.0.0.255 area 6
 network 10.226.127.33 0.0.0.0 area 6
 network 10.224.0.0 0.31.255.255 area 0
!

Since this router is in between area 0 and 6 should I have another entry as

 mpls traffic-eng area 6

when I do try to issue this above command, I get

%MPLS TE already enabled, on ospf area 0

Does that mean this router that I am using is not capable of being a ABR ?

(Cisco Docs Step 4 says I should issue the following commands.

Router(config-router)# mpls traffic-eng area 0

Router(config-router)# mpls traffic-eng area m

)

Thanks for your time.

Kurien

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