Hello everyone I am a for students from China, here is my problem, my English is not good, this is done by google translate.
No one has yet to answer it?
If you know the answer, please send to my mailbox 。550513723@qq.com
Highest respects to your
Lab Topology。
Narrative
MPLS -TE auto-tunnel，will be the preferred R1-R2-R3-R4 this path
Now
Red part（R2-R5-R6-R3） Bandwidth 1000 Kbit/sec
Blue part（R2-R7-R8-R3）Bandwidth 100 Kbit/sec
If R2-R3 link fails，I hope that auto-tunnel select R1-R2-R7-R8-R3-R4 this route，Instead of Red Link
Lab requirements
①If R2-R3 link fails，I hope that auto-tunnel select R1-R2-R7-R8-R3-R4 this route，Instead of Red Link
②Use only SRLG technology，Can not be used mpls traffi-eng attribute-flags，Or change weights method。
I queries cisco document,then I do not know how it should be either configured to complete the experiment.
Are here seek to you for your help, thank you.
http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fs29srlg.html
Supplementary
SRLG，To prevent auto-tunnel is automatically created at the time, primary tunnel and the backup tunnel to use same link as
So how to configure it to to prevent this situation?
Thank you very much
Supplementary again
I re-do the experiment，Differ And before。I created on R2 auto-tunnel primary and backup auto tunnel. Then use the SRLG, reached the experimental results. But there are a few commands do not understand, I hope to get help.
Configuration files can be downloaded below
Help
R2(config)#mpls traffic-eng auto-tunnel backup config unnumbered-interface 【interface】
Here is manually specify the backup tunnel it?
R2(config)#mpls traffic-eng auto-tunnel primary config unnumbered-interface 【interface】
Here are primary tunnel manually specify what?
But when I fill in here the tunnel interface when an error occurred cannot generate a backup tunnel
RSVP is always being given, how to solve？
*Aug 27 20:00:56.287: %RSVP-3-IP_HDR: 46C000F0 00540000 FE2EF1C3 0A010101 28010101 94040000 10010000 FF0000D8
*Aug 27 20:00:56.287: %RSVP-3-MSG_1: 10010000 FF0000D8 00100107 28010101 00000001 0A010101 000C0301 0C010101
*Aug 27 20:00:56.287: %RSVP-3-MSG_2: 02000405 00080501 00007530 00341401 01080C01 01022000 01081701 01022000
SRLG and auto-tunnel（auto-Template ） can be used in combination with it?
About the Experiment
I will, R2-R3 link and R2-R5 link configuration "mpls traffic-eng srlg 1"
SHOW
R2#show ip rsvp fast-reroute
Primary Protect BW Backup
Tunnel I/F BPS:Type Tunnel:Label State Level Type
------ ------- -------- ------------- ------ ----- ------
R2_t203 Fa0/0 0:G None None None
R2_t201 Fa0/1 0:G Tu2001:0 Ready any-unl Nhop
R2_t202 Et1/0 0:G Tu2002:0 Ready any-unl Nhop
R2_t200 Et1/1 0:G Tu2000:0 Ready any-unl Nhop
R2#show mpls traffic-eng tunnels tunnel 202【Primary tunnel Use the red link】
Name: R2_t202 (Tunnel202) Destination: 50.1.1.1
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 1, type explicit __dynamic_tunnel202 (Basis for Setup, path weight 10)
Config Parameters:
Bandwidth: 0 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: enabled LockDown: disabled Loadshare: 0 bw-based
auto-bw: disabled
Active Path Option Parameters:
State: explicit path option 1 is active
BandwidthOverride: disabled LockDown: disabled Verbatim: disabled
InLabel : -
OutLabel : Ethernet1/0, implicit-null
FRR OutLabel : Tunnel2002, explicit-null
RSVP Signalling Info:
Src 20.1.1.1, Dst 50.1.1.1, Tun_Id 202, Tun_Instance 7177
RSVP Path Info:
My Address: 25.1.1.2
Explicit Route: 25.1.1.5 50.1.1.1
Record Route: NONE
Tspec: ave rate=0 kbits, burst=1000 bytes, peak rate=0 kbits
RSVP Resv Info:
Record Route: 50.1.1.1(0)
Fspec: ave rate=0 kbits, burst=1000 bytes, peak rate=0 kbits
Shortest Unconstrained Path Info:
Path Weight: 10 (TE)
Explicit Route: 25.1.1.2 25.1.1.5 50.1.1.1
History:
Tunnel:
Time since created: 13 minutes, 48 seconds
Time since path change: 13 minutes, 47 seconds
Number of LSP IDs (Tun_Instances) used: 1
Current LSP:
Uptime: 13 minutes, 47 seconds
R2#show mpls traffic-eng tunnels tunnel 2002【Your can see the backup tunnel, use the blue link】
Name: R2_t2002 (Tunnel2002) Destination: 50.1.1.1
Status:
Admin: up Oper: up Path: valid Signalling: connected
path option 1, type explicit __dynamic_tunnel2002 (Basis for Setup, path weight 50)
Config Parameters:
Bandwidth: 0 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: disabled LockDown: disabled Loadshare: 0 bw-based
auto-bw: disabled
Active Path Option Parameters:
State: explicit path option 1 is active
BandwidthOverride: disabled LockDown: disabled Verbatim: disabled
InLabel : -
OutLabel : Ethernet1/1, 17
RSVP Signalling Info:
Src 20.1.1.1, Dst 50.1.1.1, Tun_Id 2002, Tun_Instance 7
RSVP Path Info:
My Address: 27.1.1.2
Explicit Route: 27.1.1.7 78.1.1.7 78.1.1.8 38.1.1.8
38.1.1.3 36.1.1.3 36.1.1.6 56.1.1.6
56.1.1.5 50.1.1.1
Record Route: NONE
Tspec: ave rate=0 kbits, burst=1000 bytes, peak rate=0 kbits
RSVP Resv Info:
Record Route: NONE
Fspec: ave rate=0 kbits, burst=1000 bytes, peak rate=0 kbits
Shortest Unconstrained Path Info:
Path Weight: 10 (TE)
Explicit Route: 25.1.1.2 25.1.1.5 50.1.1.1
History:
Tunnel:
Time since created: 16 minutes, 12 seconds
Time since path change: 16 minutes, 8 seconds
Number of LSP IDs (Tun_Instances) used: 7
Current LSP:
Uptime: 16 minutes, 8 seconds
Accepted Solutions
