Re: MPLS TE ( Affinity)

Hi

I have done the following testing

1. Both Tunnels does not came up after shutting down the link between R8 &
R9.
2. Both Tunnels does not came up increasing the metric between R8 & R9.

Regards,
Gaurav

On Wed, Nov 3, 2010 at 9:54 AM, Tyson Scott <tscott_at_ipexpert.com> wrote:

> Guarav,
>
>
>
> You said it is up in one direction but it shows down in both directions.
> You have configured affinity on the path from R8 to R7 to R9 but have it set
> to dynamic. The dynamic path I am assuming is more preferred directly
> between R8 and R9.
>
>
>
> Dynamic means it is going to follow the path of your RIB. Force your RIB
> to be less preferred for the direct connection
>
>
>
> R8 and R9
>
> E3/2
>
> isis metric 1000
>
> E2/0
>
> isis metric 1000
>
>
>
> You could also shutdown that connection to see it come up when the other
> path becomes the preferred route in the RIB.
>
>
>
> Your next option is to configure an explicit path to force the traffic thru
> R7. You could then in that case have it fail over to the other path if you
> configure your affinity on both paths.
>
>
>
> Regards,
>
>
>
> Tyson Scott - CCIE #13513 R&S, Security, and SP
>
> Managing Partner / Sr. Instructor - IPexpert, Inc.
>
> Mailto: tscott_at_ipexpert.com
>
>
>
>
>
> *From:* Gaurav Thukral [mailto:pearlgaurav_at_gmail.com]
> *Sent:* Wednesday, November 03, 2010 12:09 AM
> *To:* Tyson Scott
> *Cc:* Group study; groupstudy_at_cconlinelabs.com
>
> *Subject:* Re: MPLS TE ( Affinity)
>
>
>
> Hi Guys,
>
>
> Please find attached the full config of all the three devices.
>
> R8
>
> mpls traffic-eng tunnels
>
> interface Loopback2
> ip address 5.5.88.8 255.255.255.255
>
> interface Loopback0
> ip address 5.5.8.8 255.255.255.255
> ip router isis
> ip pim sparse-mode
> isis circuit-type level-2-only
>
>
> interface Ethernet3/2
> ip address 5.5.89.8 255.255.255.0
> ip router isis
> ip pim sparse-mode
> full-duplex
> mpls traffic-eng tunnels
> tag-switching ip
> isis circuit-type level-2-only
> isis network point-to-point
> ip rsvp bandwidth 100000 50000 sub-pool 20000
>
> interface Ethernet3/0
> ip address 5.5.78.8 255.255.255.0
> ip router isis
> ip pim sparse-mode
> full-duplex
> mpls traffic-eng tunnels
> mpls traffic-eng attribute-flags 0x11
> tag-switching ip
> isis circuit-type level-2-only
> ip rsvp bandwidth 100000 50000 sub-pool 20000
>
> interface Tunnel89
> ip unnumbered Loopback2
> tunnel destination 5.5.99.9
> tunnel mode mpls traffic-eng
> tunnel mpls traffic-eng priority 7 7
> tunnel mpls traffic-eng bandwidth sub-pool 5000
> tunnel mpls traffic-eng affinity 0x11 mask 0x11
> tunnel mpls traffic-eng path-option 1 dynamic
>
> router isis
> net 49.0005.0000.0000.0008.00
> is-type level-2-only
> metric-style wide level-2
> log-adjacency-changes
> mpls traffic-eng router-id Loopback2
> mpls traffic-eng level-2
>
> R7
>
> mpls traffic-eng tunnels
>
> interface Ethernet3/1
> ip address 5.5.79.7 255.255.255.0
> ip router isis
> ip pim sparse-mode
> full-duplex
> mpls traffic-eng tunnels
> tag-switching ip
> isis circuit-type level-2-only
> isis priority 127
> ip rsvp bandwidth 100000 50000 sub-pool 20000
>
> interface Ethernet3/0
> ip address 5.5.78.7 255.255.255.0
> ip router isis
> ip pim sparse-mode
> full-duplex
> mpls traffic-eng tunnels
> tag-switching ip
> isis circuit-type level-2-only
> isis priority 127
> ip rsvp bandwidth 100000 50000 sub-pool 20000
>
> router isis
> net 49.0005.0000.0000.0007.00
> is-type level-2-only
> metric-style wide level-2
> log-adjacency-changes
> mpls traffic-eng router-id Loopback0
> mpls traffic-eng level-2
>
> R9
>
> mpls traffic-eng tunnels
>
> interface Loopback0
> ip address 5.5.9.9 255.255.255.255
> ip router isis
> ip pim sparse-mode
> isis circuit-type level-2-only
>
> interface Loopback2
> ip address 5.5.99.9 255.255.255.255
>
>
> interface FastEthernet2/0
> ip address 5.5.89.9 255.255.255.0
> ip router isis
> ip pim sparse-mode
> duplex auto
> speed auto
> mpls traffic-eng tunnels
> tag-switching ip
> isis circuit-type level-2-only
> isis network point-to-point
> ip rsvp bandwidth 100000 50000 sub-pool 20000
>
> interface FastEthernet1/0
> ip address 5.5.79.9 255.255.255.0
> ip router isis
> ip pim sparse-mode
> duplex auto
> speed auto
> mpls traffic-eng tunnels
> mpls traffic-eng attribute-flags 0x11
> tag-switching ip
> isis circuit-type level-2-only
> ip rsvp bandwidth 100000 50000 sub-pool 20000
>
> router isis
> net 49.0005.0000.0000.0009.00
> is-type level-2-only
> metric-style wide level-2
> log-adjacency-changes
> mpls traffic-eng router-id Loopback2
> mpls traffic-eng level-2
>
> interface Tunnel98
> ip unnumbered Loopback2
> tunnel destination 5.5.88.8
> tunnel mode mpls traffic-eng
> tunnel mpls traffic-eng priority 7 7
> tunnel mpls traffic-eng bandwidth sub-pool 5000
> tunnel mpls traffic-eng affinity 0x11 mask 0x11
> tunnel mpls traffic-eng path-option 1 dynamic
>
> BOTH TUNNELS ARE DOWN NOW.
>
> R9#sh mpls traffic-eng tunnels
>
> Name: R9_t98 (Tunnel98) Destination: 5.5.88.8
> Status:
> Admin: up Oper: down Path: not valid Signalling: Down
> path option 1, type dynamic
>
> Config Parameters:
> Bandwidth: 5000 kbps (Sub) Priority: 7 7 Affinity: 0x11/0x11
> Metric Type: TE (default)
> AutoRoute: disabled LockDown: disabled Loadshare: 5000 bw-based
> auto-bw: disabled
>
> History:
> Tunnel:
> Time since created: 1 hours, 42 minutes
> Time since path change: 10 minutes, 1 seconds
> Prior LSP:
> ID: path option 1 [6]
> Removal Trigger: configuration changed
> Last Error: PCALC:: No path to destination, 0000.0000.0008.00
>
> R8#sh mpls traffic-eng tunnels
>
> Name: R8_t89 (Tunnel89) Destination: 5.5.99.9
> Status:
> Admin: up Oper: down Path: not valid Signalling: Down
> path option 1, type dynamic
>
> Config Parameters:
> Bandwidth: 5000 kbps (Sub) Priority: 7 7 Affinity: 0x11/0x11
> Metric Type: TE (default)
> AutoRoute: disabled LockDown: disabled Loadshare: 5000 bw-based
> auto-bw: disabled
>
> History:
> Tunnel:
> Time since created: 56 minutes, 25 seconds
> Time since path change: 35 minutes, 40 seconds
> Prior LSP:
> ID: path option 1 [31]
> Removal Trigger: configuration changed
> Last Error: PCALC:: No path to destination, 0000.0000.0009.00
>
>
> Regards,
> Gaurav

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Received on Wed Nov 03 2010 - 10:06:17 ART