[j-nsp] Traffic balancing over LSPs

[James Ashton]

All, Just to clarify a few things,

 The destination is not in inet.3.  I do not have a direct LSP to the destination and cannot create one (The destination doesn't support MPLS nor does it support BGP)



The show route output is:
jashton at cr01-re0> show route xx.xxx.xx.x/24    

inet.0: 448173 destinations, 3298320 routes (445123 active, 39 holddown, 465440 hidden)
@ = Routing Use Only, # = Forwarding Use Only
+ = Active Route, - = Last Active, * = Both

xx.xxx.xx.x/24     *[OSPF/150] 1d 12:35:24, metric 20, tag 0
                    > to xx.xxx.xx.x via xe-4/2/0.0
                    [BGP/170] 01:03:59, localpref 100, from xx.xxx.xx.x
                      AS path: I
                    > to xx.xxx.xx.x via xe-5/2/0.0
                    [BGP/170] 6d 19:17:07, MED 20, localpref 100, from xx.xxx.xx.x
                      AS path: I
                    > to xx.xxx.xx.x via ae3.0
                    [BGP/170] 6d 18:57:09, MED 20, localpref 100, from xx.xxx.xx.x
                      AS path: I
                    > to xx.xxx.xx.x via ae2.0
                    [BGP/170] 6d 19:03:11, MED 20, localpref 100, from xx.xxx.xx.x
                      AS path: I
                    > to xx.xxx.xx.x via ae2.0
                    [BGP/170] 6d 19:02:45, MED 20, localpref 100, from xx.xxx.xx.x
                      AS path: I
                    > to xx.xxx.xx.x via ae2.0
                    [BGP/170] 6d 19:18:02, MED 20, localpref 100, from xx.xxx.xx.x
                      AS path: I
                    > to xx.xxx.xx.x via xe-4/2/0.0
                    [BGP/170] 6d 17:40:10, MED 20, localpref 100, from xx.xxx.xx.x
                      AS path: I
                    > to xx.xxx.xx.x via xe-5/2/0.0
                    [BGP/170] 2d 13:54:44, MED 20, localpref 100, from xx.xxx.xx.x
                      AS path: I
                    > to xx.xxx.xx.x via ae6.0
                    [BGP/170] 6d 19:20:12, MED 20, localpref 100, from xx.xxx.xx.x
                      AS path: I
                    > to xx.xxx.xx.x via xe-4/2/0.0
                    [BGP/170] 6d 17:31:28, MED 20, localpref 100, from xx.xxx.xx.x
                      AS path: I
                    > to xx.xxx.xx.x via xe-5/2/0.0
                    [BGP/170] 6d 17:40:12, MED 20, localpref 100, from xx.xxx.xx.x
                      AS path: I
                    > to xx.xxx.xx.x via xe-5/2/0.0

inet.3: 1232 destinations, 1248 routes (9 active, 0 holddown, 1232 hidden)

----- Original Message -----
From: "Colby Barth" <cbarth at juniper.net>
To: "James Ashton" <james at gitflorida.com>
Sent: Friday, January 18, 2013 9:31:51 AM
Subject: Re: [j-nsp] Traffic balancing over LSPs

James-

Could you possibly send the output of 'show route x.x.x.x/y' for one of the destinations that you think should resolve over the LSP?

I suspect that this destinations are not in inet3 for some reason.

-Colby

On Jan 18, 2013, at 8:49 AM, Phil Bedard wrote:

> Is it all one OSPF area or is the CMTS in an area other than 0? If the
> MX480 is an ABR you can restrict the OSPF routes and originate them on
> the MX480 as BGP instead using aggregate statements.
> 
> Phil From: James Ashton
> Sent: 1/17/2013 11:07
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] Traffic balancing over LSPs
> I have an interesting situation that has me stumped for the moment.
> 
> I have an OSPF speaking device (ARRIS CMTS) hanging off from an EX Switch.
> That switch is uplinked to an MX480 which is part of the network core.
> It has several paths into it from rest of the network.
> From several major traffic centers in the network I have 3 LSPs
> created to the MX480.
> I am running "mpls traffic-engineering mpls-forwarding" throughout the network.
> 
> As the end users hanging off the CMTS are advertised onto the network
> via OSPF, and I cannot terminate LSPs on the CMTS, the traffic to
> these users is not being forwarded over the LSPs.
> I have tested enabling "ospf traffic-engineering shortcuts" but that
> is breaking several paths in the network to legacy areas with odd
> configs.
> 
> My question is basically, how can I get this traffic into these LSPs
> in way that is more manageable at scale than a pile of static routes.
> 
> 
> I hope the above is clear,  I am low on Caffeine at the moment.
> 
> Thank you in  advance for any help/ideas.
> 
> James
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