Re: LDP issue, CSC hirechical, IE techlabs

thanks antonio, I will give it a shot with a lighter code :)

On Fri, Apr 3, 2009 at 1:35 AM, Antonio Soares <amsoares_at_netcabo.pt> wrote:

> It's very hard to tell you what is the problem but i would say it's
> dynamips. This scenario involves 10 routers so maybe you are
> getting performance issues. When i have scenarios with 6+ routers, i use a
> lighter IOS release:
>
> image = c7200-p.120-32.S9.bin
> ram = 64
> npe = npe-400
> idlepc = 0x60669380
>
>
> Regards,
>
> Antonio Soares, CCIE #18473 (R&S)
> amsoares_at_netcabo.pt
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Carlos glez
> Sent: terga-feira, 31 de Margo de 2009 6:42
> To: Cisco certification
> Subject: LDP issue, CSC hirechical, IE techlabs
>
> Hi group
>
>
> Im working on internetwork expert SP tech labs , im doing some CSC tests,
> page 176 hirechical mpls vpn
>
> I got the topology working but the label switching path is breaking from
> time to time , wondering if you guys have seen
> something like this
>
>
> im enclosing the LDP path for reference
>
>
> from R7 to BB1 ( 10.1.7.7 to 212.18.1.0 ) the path is always stable
>
>
> R3
>
> VPN label
>
> 212.18.1.0 150.1.6.6 nolabel/23
>
> transport
>
> 16 18 150.1.6.6/32 0 Se1/2 point2point
>
> R1
>
> 18 18 150.1.6.6/32 115 Se2/0.1
> point2point
>
> R2
>
> 18 18 150.1.6.6/32[V] <http://150.1.6.6/32%5BV%5D> 24235
> Fa0/0 150.1.24.0
>
> R4
>
> 18 16 150.1.6.6/32[V] <http://150.1.6.6/32%5BV%5D> 22405
> Se1/0.1 point2point
>
> R6
>
> 16 Pop tag 150.1.6.6/32 21572 Et0/0 150.1.56.6
>
>
> which is correct now on the way back on the CSC_PE (R2) LDP is broken
>
>
> from BB1 to R7 ( 212.18.1.0 to 10.1.7.7 )
>
>
> R6
>
> VPN label
>
> 10.1.7.0/24 150.1.3.3 nolabel/23
>
> transport
>
> 17 17 150.1.3.3/32 0 Et0/0 150.1.56.5
>
> R5
>
> 17 22 150.1.3.3/32 41756 Se1/0.1 point2point
>
> R4
>
> 22 21 150.1.3.3/32[V] <http://150.1.3.3/32%5BV%5D> 46118
> Et0/0 150.1.24.2
>
>
> *Mar 1 03:29:39.159: MPLS: Se1/0.1: recvd: CoS=0, TTL=253, Label(s)=22/23
>
> *Mar 1 03:29:39.163: MPLS: Et0/0: xmit: CoS=0, TTL=252, Label(s)=21/23
>
>
> R2
>
> 21 No Label 150.1.3.3/32[V] <http://150.1.3.3/32%5BV%5D> 1007
> Se2/0.1 point2point
> <--here
>
>
>
> i dont know why R3 is putting a no label in there is should continue with
> the path
>
> R4 is doing its job just fine
>
>
> the debug mpls pack in R2 shows the following
>
> R2
>
> 03:16:46: MPLS les: Fa0/0: rx: Len 122 Stack {21 0 252} {23 0 254} - ipv4
> data
>
> 03:16:48: MPLS les: Fa0/0: rx: Len 122 Stack {21 0 252} {23 0 254} - ipv4
> data
>
> 03:16:50: MPLS les: Fa0/0: rx: Len 122 Stack {21 0 252} {23 0 254} - ipv4
> data
>
>
> im thinking if R2 is removing all labels then R2 should be sending regular
> ip traffic and then its been drooped however i run deb ip
> pack and i dont see that pack at all
>
>
> the weird part is that after running continue pings at some point it
> works, i thought it was the IOS so i upgrade my routers but
> still no luck im
> using on R2 ( Cisco 7206VXR ) Version 12.2(25)S15. btw this is a
> dymapis
> lab setup
>
>
> when it works R2 looks like this
>
> 21 16 150.1.3.3/32[V] <http://150.1.3.3/32%5BV%5D> 29764
> Se2/0.1 point2point
>
>
> R1
>
> 16 Pop Label 150.1.3.3/32 52323 Se2/1
> point2point
>
>
> im going nuts with this make no sense why is working at some point , the
> worst part is that its not a short time , it can last for
> quite long
>
>
>
>
> Type escape sequence to abort.
>
> Sending 10000, 100-byte ICMP Echos to 10.1.7.7, timeout is 2 seconds:
>
> BB1#ping 10.1.7.7 re 10000
>
> Translating "10.1.7.7"
>
>
> Type escape sequence to abort.
>
> Sending 10000, 100-byte ICMP Echos to 10.1.7.7, timeout is 2 seconds:
>
> ......................................................................
>
> ..................................................!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!...........................................................
>
> .....................................!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!........................................
>
> ................................................
>
>
>
>
> if any of you guys have run this lab and get it stable could you please let
> me know what version of ios are u using?
>
> any ideas will be greatly appreciated ?
>
>
> btw is there some who wants to have a study partner for SP, im currently
> based in spain.
>
>
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Received on Fri Apr 03 2009 - 13:41:28 ART