[j-nsp] OSPF default in TSA
The Dark One
thedarkone at list.ru
Fri May 15 04:40:29 EDT 2009
That is exactly the point :-)
I have created an area 0 adjacency and the default is sent to the totally-stubby-area
Thank you very much for help.
-----Original Message-----
From: Harry Reynolds <harry at juniper.net>
To: The Dark One <thedarkone at list.ru>, Juniper Puck<juniper-nsp at puck.nether.net>
Date: Thu, 14 May 2009 13:47:43 -0700
Subject: RE: [j-nsp] OSPF default in TSA
> Does rc2 have an area 0 adjacency up? If not I believe active backbone detection suppresses the default. Looks likes its area 0 lsdb is all self-populated.
>
> Regards
>
> http://www.juniper.net/techpubs/software/junos/junos94/swconfig-routing/configuring-the-backbone-area-and-other-areas.html
>
>
>
>
>
>
>
> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of The Dark One
> Sent: Thursday, May 14, 2009 1:24 PM
> To: Juniper Puck
> Subject: [j-nsp] OSPF default in TSA
>
> Experts,
> according to JNCIP_studyguide pag 179:
> "Juniper Networks routers do not automatically generate a default route when operating as an ABR attached to a stub or not-so-stubby area. With JUNOS software, you must configure a default metric before a default route will be advertised!"
>
> But router 'itp' doesn't get it :-( any idea why and how?
> Thanks!
>
> rc2> show configuration routing-instances RI protocols ospf
> area 13.246.165.176 {
> stub default-metric 1 no-summaries;
> interface ge-5/2/1.176;
> }
> area 0.0.0.0 {
> interface ge-5/2/0.314;
> }
>
> rc2> show ospf database instance RI
>
> OSPF database, Area 0.0.0.0
> Type ID Adv Rtr Seq Age Opt Cksum Len
> Router *13.246.165.177 13.246.165.177 0x80000004 119 0x22 0x1813 36
> Summary *13.246.165.151 13.246.165.177 0x80000004 119 0x22 0x712a 28
> Summary *13.246.165.176 13.246.165.177 0x80000004 119 0x22 0x4248 28
>
> OSPF database, Area 13.246.165.176
> Type ID Adv Rtr Seq Age Opt Cksum Len
> Router 13.246.165.151 13.246.165.151 0x80000006 266 0x20 0x8f14 48
> Router *13.246.165.177 13.246.165.177 0x80000008 119 0x20 0xeed0 36
> Network *13.246.165.177 13.246.165.177 0x80000003 119 0x20 0x12db 32
>
> lab at hu-bud01a-rc2> show ospf neighbor instance RI
> Address Interface State ID Pri Dead
> 13.246.165.178 ge-5/2/1.176 Full 13.246.165.151 1 36
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> itp#show ip interface brief | ex una
> Interface IP-Address OK? Method Status Protocol
> FastEthernet0/0 13.246.165.178 YES manual up up
> Loopback0 13.246.165.151 YES manual up up
>
> itp#show running-config | s router ospf
> router ospf 1
> router-id 13.246.165.151
> log-adjacency-changes
> area 13.246.165.176 stub
> network 0.0.0.0 255.255.255.255 area 13.246.165.176 itp#show ip route <....> Gateway of last resort is not set
>
> 13.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
> C 13.246.165.151/32 is directly connected, Loopback0
> C 13.246.165.176/29 is directly connected, FastEthernet0/0
>
>
> itp#show ip ospf database
>
> OSPF Router with ID (13.246.165.151) (Process ID 1)
>
> Router Link States (Area 13.246.165.176)
>
> Link ID ADV Router Age Seq# Checksum Link count
> 13.246.165.151 13.246.165.151 424 0x80000006 0x008F14 2
> 13.246.165.177 13.246.165.177 278 0x80000008 0x00EED0 1
>
> Net Link States (Area 13.246.165.176)
>
> Link ID ADV Router Age Seq# Checksum
> 13.246.165.177 13.246.165.177 278 0x80000003 0x0012DB
>
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