Hello all,

I am trying to setup a backbone area with an adjacent router using OSPF but I am getting the following error: Can anyone shed any light on why this is happening. If I setup the same OSPF using Quagga then the neighbour relation starts fine, (quagga running on Openwrt inside Metarouter) basically confirming that the MTU is correct for OSPF.

On the OSFP Neighbour I see the following errors: Any help would be greatly appreciated

No One ?

Post your conf of each router and routerOS version.

sent from my mobile phone using tapatalk

...

Hello all,

2014-04-25T09:57:37+00:00 vShield-edge-4-0 routing[372]: [user.emerg] EXCEPTION 0x3e01-117: DB DESCRIPTION packet received with invalid master / slave bit.
2014-04-25T09:57:37+00:00 vShield-edge-4-0 routing[372]: [user.info] AUDIT 0x3e01-91: OSPF 1 An adjacency with a neighbor has gone down.[/code]

Any help would be greatly appreciated

The question regarding the LSA type has already been answered...
I'm interested in the other error message you've got.
DB DESCRIPTION packet received with invalid master / slave bit.
This is interesting... Master/slave determination is done prior DB Desccription exchange in OSPF. And it's purely to determine which of the neighbors will send the data first. In your case it seems like this phase was not done correctly and you've got that error. Have you changed any OSPF interface priority?

Hello all,

2014-04-25T09:57:37+00:00 vShield-edge-4-0 routing[372]: [user.emerg] EXCEPTION 0x3e01-117: DB DESCRIPTION packet received with invalid master / slave bit.
2014-04-25T09:57:37+00:00 vShield-edge-4-0 routing[372]: [user.info] AUDIT 0x3e01-91: OSPF 1 An adjacency with a neighbor has gone down.[/code]

Any help would be greatly appreciated

The question regarding the LSA type has already been answered...
I'm interested in the other error message you've got.
DB DESCRIPTION packet received with invalid master / slave bit.
This is interesting... Master/slave determination is done prior DB Desccription exchange in OSPF. And it's purely to determine which of the neighbors will send the data first. In your case it seems like this phase was not done correctly and you've got that error. Have you changed any OSPF interface priority?

I have not changed anything. Just to update everyone, I have filed a bug with the "Other" router. it seems that it had an IPv6 address but that should not have been advertised. Our enginering team is working on it.

Thanx

*) ospf - added support for link scope opaque LSAs (Type 9) for OSPFv2;

viewtopic.php?f=21&t=146087&p=727144#p727144