Re: MPLS Question

In your two DCs you don't control what is redistributing to service provider,
simply all the routes are pushed to SP. The link I provided shows what SOO
does. It has to be done at SP.

On May 6, 2011, at 23:31, Vishal Rane <vishal.rane_at_hotmail.co.in> wrote:

> I didnt get the 1st part - "Routing Loop" < Is it service provider or my end
>
>
> Site "C" got OSPF as part of standard setup across all sites ; I also agree
that adding network statement in BGP can deliver the current need
>
> Thanks
>
>
> Date: Fri, 6 May 2011 23:19:29 +0300
> Subject: Re: MPLS Question
> From: pottaharry_at_gmail.com
> To: vishal.rane_at_hotmail.co.in
> CC: ccielab_at_groupstudy.com
>
> this problem may be due to a routing loop. in this environment service
provider PE routers has to use BGP site of origin. I guess it is not
implemented and all the networks in MA-DC1 and MA-DC2 is advertised through
both A and B site Edge routers.
>
> http://www.cisco.com/en/US/docs/ios/12_4t/12_4t11/htbgpsoo.html
>
> check with the service provider.
>
> any reason to use OSPF for only one interface in C site ? Do you have an
OSPF network behind the MPLS router in JM site?
>
>
>
>
> On Fri, May 6, 2011 at 6:43 PM, Vishal Rane <vishal.rane_at_hotmail.co.in>
wrote:
> Hello
>
> I attached diagram link and config specific to MPLS cloud.
> Experts kindly advice.
>
> As per previous Email you can refer -
> A = MA_DC1
> B = MA_DC2
> C = JM
>
> Diagram uploaded on this link =
> http://www.freeimagehosting.net/uploads/9d62ac862a.jpg
>
>
> MA_DC1_BB = BackBone
> MA_DC1_MPLS = MPLS_EDGE_Router
>
> MA_DC2_BB = BackBone
> MA_DC2_MPLS = MPLS_EDGE_Router
>
> JM = JM_MPLS
>
> -----------------------------------------------------------------
> hostname JM_MPLS
>
> interface fastEthernet 0/0
> description "LAN_Interface"
> ip addresss 192.168.1.1 255.255.255.0
>
> interface fastEthernet 0/1
> description "To MPLS-Cloud"
> ip address 172.33.185.250 255.255.255.252
>
> router ospf 11
> network 192.168.1.1 0.0.0.0 area 0
> redistribute bgp 67991 subnets
>
>
> router bgp 67991
> no synchronization
> redistribute ospf 11
> neighbor 172.33.185.250 remote-as 67000
>
> -----------------------------------------------------------------
>
>
> ++++++++++++++++++++++++++++++++++++++++++
>
>
> hostname MA_DC1_BB
>
> interface vlan 1
> ip address 10.0.0.1 255.255.255.0
>
> interface vlan 2
> description " P-2-P to MA_DC2"
> ip address 10.0.84.1 255.255.255.248
>
> interface vlan 3
> description " TO MPLS Router "
> ip address 10.0.83.1 255.255.255.248
> ip ospf cost 100
>
> interface vlan 4
> descrption " USERS "
> ip address 172.16.16.1 255.255.255.0
> ip helper-address 192.168.200.10
>
> interface vlan 5
> ip address 172.16.17.1 255.255.255.0
>
> interface vlan 6
> ip address 172.16.18.1 255.255.255.0
>
> interface vlan 7
> ip address 192.168.200.1 255.255.255.0
>
> interface vlan 8
> description " To Firewall "
> ip address 10.100.200.1 255.255.255.252
>
>
> router ospf 11
> network 10.0.0.1 0.0.0.0 area 0
> network 10.0.84.1 0.0.0.0 area 0
> network 10.0.83.1 0.0.0.0 area 0
> network 172.16.16.1 0.0.0.0 area 0
> network 172.16.17.1 0.0.0.0 area 0
> network 172.16.18.1 0.0.0.0 area 0
> network 192.168.200.1 0.0.0.0 area 0
> network 10.100.200.1 0.0.0.0 area 0
>
> ip route 0.0.0.0 0.0.0.0 10.100.200.2
>
> +++++++++++++++++++++++++++++++++++++++++++++
>
>
> =========================================
> hostname MA_DC1_MPLS
>
> interface fastEthernet 0/0
> description "To LAN BackBone"
> ip addresss 10.0.83.2 255.255.255.248
>
> interface fastEthernet 0/1
> no shut
>
> interface fastEthernet 0/1.226
> description "To Provider MPLS Cloud"
> encapsulation dot1q 226
> ip address 172.33.185.226 255.255.255.252
>
>
> router ospf 11
> network 10.0.83.2 0.0.0.0 area 0
> redistribute bgp 67991 subnets
> passive-interface default
> no passive interface FastEthernet 0/0
>
> router bgp 67991
> no synchronization
> redistribute ospf 11 match internal external 1 external 2
> neighbor 172.33.185.225 remote-as 67000
> ==========================================
>
>
>
-----------------------------------------------------------------------------
> -----------------------
>
> hostname MA_DC2_BB
>
> interface vlan 1
> ip address 10.10.10.1 255.255.255.0
>
> interface vlan 2
> description " P-2-P to MA_DC1"
> ip address 10.0.84.2 255.255.255.248
>
> interface vlan 3
> description " TO MPLS Router "
> ip address 10.0.85.1 255.255.255.248
> ip ospf cost 100
>
> interface vlan 4
> descrption " USERS "
> ip address 172.20.1.1 255.255.255.0
> ip helper-address 192.168.210.10
>
> interface vlan 5
> ip address 172.20.2.1 255.255.255.0
>
> interface vlan 6
> ip address 172.20.3.1 255.255.255.0
>
> interface vlan 7
> ip address 192.168.210.1 255.255.255.0
>
> interface vlan 8
> description " To Firewall "
> ip address 10.100.252.1 255.255.255.252
>
>
> router ospf 11
> network 10.10.10.1 0.0.0.0 area 0
> network 10.0.84.2 0.0.0.0 area 0
> network 10.0.85.1 0.0.0.0 area 0
> network 172.20.1.1 0.0.0.0 area 0
> network 172.20.2.1 0.0.0.0 area 0
> network 172.20.3.1 0.0.0.0 area 0
> network 192.168.210.1 0.0.0.0 area 0
> network 10.100.252.1 0.0.0.0 area 0
>
> ip route 0.0.0.0 0.0.0.0 10.100.252.2
>
>
-----------------------------------------------------------------------------
> ---------------------------------------
>
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> hostname MA_DC2_MPLS
>
> interface fastEthernet 0/0
> description "To LAN BackBone"
> ip addresss 10.0.85.2 255.255.255.248
>
> interface fastEthernet 0/1
> description "To MPLS-Cloud"
> ip address 172.130.58.18 255.255.255.252
>
> router ospf 11
> network 10.0.85.2 0.0.0.0 area 0
> redistribute bgp 67991 subnets
> passive-interface default
> no passive interface FastEthernet 0/0
>
> router bgp 67991
> no synchronization
> redistribute ospf 11 match internal external 1 external 2
> neighbor 172.130.58.17 remote-as 67000
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
>
>
>
>
>
> thanks
>
>
>
>
>
> > Date: Fri, 6 May 2011 10:54:09 +0300
> > Subject: Re: MPLS Question
> > From: pottaharry_at_gmail.com
> > To: vishal.rane_at_hotmail.co.in
> > CC: ccielab_at_groupstudy.com
> >
> > can you put a diagram on how the routers are connected and what
protocols
> > used and where you do redistribution with the subnets?
> >
> > relevant configs on the routers will help a lot.
> >
> > On Thu, May 5, 2011 at 10:31 PM, Vishal Rane
> <vishal.rane_at_hotmail.co.in>wrote:
> >
> > > Hello
> > > I got this setup, facing issues after "B" got MPLS link lately.
Consider
> > > "A",
> > > "B", "C" as different sites
> > > A-------connects------------B via point-to-point as primary link and
> > > backup
> > > via service-provider MPLS Link.
> > >
> > > Point-to-Point link is terminated on BackBone_RTR and MPLS link
> terminated
> > > on
> > > Edge_RTR.
> > >
> > > "C" is connected to same MPLS Cloud. Time-to-Time we notice packet
drops
> > > from
> > > "C" reaching to "A" or "B"
> > >
> > > on shutting MPLS interface on "B" pointing to service provider - no
> packet
> > > drop noticed on "C"
> > >
> > > Routing protocol on LAN - "OSPF"
> > > Service Provider config on MPLS-Edge Router (CE) - "BGP"
> > >
> > > Redistribution is performed between ospf & bgp on MPLS Edge-RTR on both
> "A"
> > > and "B"
> > >
> > >
> > > Any Suggestion
> > >
> > >
> > >
> > > thanks
> > > (Vishal)
> > >
> > >
> > > Blogs and organic groups at http://www.ccie.net
> > >
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> >
> >
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> >
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>
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>
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Received on Fri May 06 2011 - 23:43:30 ART